Carbon and coal based materials of high added value - research at CMPW PAN. Andrzej Dworak

Size: px
Start display at page:

Download "Carbon and coal based materials of high added value - research at CMPW PAN. Andrzej Dworak"

Transcription

1 Carbon and coal based materials of high added value - research at CMPW PAN Andrzej Dworak

2 CMPW PAN (previously Institute of Coal Chemistry PAS) Structure and properties of coals and basic methods of their processing Brown coals - Hard coals Anthracites - Cokes - Pyrolysed vascular plants Cross-links Molecular phase Acceptor-donor bonds Two-phase model of coal structure /A. Marzec, 1985/ Development of the basis of technology for obtaining carbon materials with specific properties 2006 currently non-energetic application of natural carbon materials (carbon fillers of polymer composites, catalyst carriers, sorbents) synthetic carbon materials from various precursors (natural and others) preparation and application

3 Natural carbon materials Turbostratic structure High rank bituminous coal Anthracite Graphite-like and graphitic structure Diamond Semi-graphite Graphite

4 Natural carbon materials Bituminous coal Raw anthracite HTT, graphite-like anthracite HTT 2000 o C C~83% C~93% C~95,5% 3 mm 5 mm 5 mm Increasing structural order Increase of XY dimensions of carbon planes Decrease of interlayer spacing Increase of true density Appearance of electrical conductivity S. Pusz et al. Fuel Proc. Tech., (2002) 77-78, M. Krzesinska et al. Energy Fuels (2005) 19, M. Krzesinska et al. Energy Fuels (2006) 20, M. Krzesinska et al. IJCG (2009) 77, S. Pusz et al. IJCG (2014), 131, pp

5 Functionalization of anthracite H H H H H Anthracite oxide H H H H H H H H H Thermal reductio n HTT anthracite CH 3 N H H Reduced anthracite oxide N CH 3 H Nanoplatelets XY: mm (AFM) Z: 6-30 nm H H Functionalized anthracite B. Kumanek, et al. Fullerenes, Nanotubes and Carbon Nanostructures, 2018, DI: / X H N H CH 3 Nanoplatelets XY: < 200 nm (AFM) Z: 2-3 nm

6 Polymer/carbon composites Polymer/carbon composites = polymer matrix + different kinds of carbon fillers Fillers: Carbon fibres Carbon black Graphite Carbon nanotubes Graphene Fulerenes ther carbon materials Carbon nanofillers Matrices: Thermosetting polymers Termoplastic polymers Elastomers Potential benefits of application of carbon fillers to polimer composites: better stiffness better thermal resistance better chemical resistance better mechnical strength low density Hybrid polimer composite with two different carbon fillers

7 Mechanical strength [MPa] Matrix Epoxy composites with natural carbon fillers Epoxy Matrix EP/TETA + bituminous coal (BC) + raw anthracite (RA) + HTT anthracite (A2000) Microcomposites 20% mas. + reduced anthracite oxide (AF1) Functionalized fillers + HTT anthracite after cycloaddition (AF2) Raw fillers Functionalized fillers 0,5% mm 0,5% mas. U. Szeluga et al. Journal of Thermal Analysis and Calorimetry, 92 (2008) 813 U. Szeluga et al. Polymer Bulletin 60 (2008) 555 S. Pusz et al. Polymer Composites, (2015), 36, pp mm EP BC WK RA Awyj A2000 AF1 AF2

8 Synthetic carbon materials

9 Synthetic carbon materials Graphene sheet variously arranged Graphene sheets and multi-layered nanoplatellets Synthetic graphite Carbon nanotubes Fulerenes Weakly ordered or amorphous structure, nongraphitized Heterogeneous structure, partly graphitized Carbon foam Glassy carbon Carbon black

10 Intensity [a.u.] Transmitance[a.u.] Intensity [a.u.] Glassy carbon Pyrolysis of phenol-formaldehyde resin to 1000 C, heating rate 0.5 C/h. GC: content C 92%, 7%; true density 1.45 g/cm 3 ; electrical resistance 4.2 x 10-6 Ω mm Structural model Morphology T tetrahedral domains sp 3 G graphitic domains sp 2 Functional groups XPS Structural order IR I D /I G = 1,4 Binding energy [ev] Raman shift [cm -1 ] Wavenumber [cm -1 ]

11 Epoxy composites with glassy carbon Binary cmposite with GC Hybrid composites with GC and MWCNT Epoxy Matrix EP/TETA Properties of hybrid composites: Good dispersion of GC i MWCNT Perfect adhesion of GC to matrix Good mechanical strength Good electrical conductivity Big hardness and wear-resistance Thermal resistance Density comparable to pure epoxy matrix CMPSITE s y E f s f r (Ω cm) 3 mm EP MPa 2.77 GPa MPa 4.82 x C H A N G ES EP-MWCNT (0.25%) +5% -8% -11% 4.05 x 10 4 EP-GC (10%) +29% +16% +30% 3.02 x 10 7 EP-GC10-MWCNT +32% +19% +33% 1.68 x 10 3 U. Szeluga et al. Composites Science and Technology, (2016) 134, 72-80

12 Segregated vs random anthracite composites Collaboration with IMC National Academy of Sciences of Ukraine Matrix: UHMWPE; Filler: HTT Antracite Filler distribution segregated system randomly oriented in segregated system Percolation treshold of electrical conductivity for composites with anthracite filler randomly distributed system Percolation threshold of a segregated system much lower than for randomly distributed High local concentration of filler in a segregated system.v. Maruzhenko et al. Polymer Journal (Ukraine) (2018) 39,

13 Mass [mg] Carbon foams Collaboration with IC Bulgarian Academy of Sciences Carbon foams are porous carbon products containing regularly shaped, homogeneously dispersed cells, which interact to form a three-dimensional array throughout a continuum material of carbon, predominantly in the nongraphitic state. /J. Klett, 2005/ Preparation: Pyrolysis at 900 o C, 2 o C/min Precursors: - carbon materials (pitch, tar, coals) - thermosetting and thermoplastic polymers - by-products in production of polymers and polymer waste Graphitization > 2000 o C Properties: Carbon content: 70 - > 95% Bulk density: g/cm 3 True (helium) density: g/cm 3 Porosity: % Young modulus: MPa Compression strength: ~4 MPa Electric conductivity: [S cm] Thermal stability of carbon foams Carbon foam Polymer precursor B. Tsyntsarski et al. Carbon, (2010) B. Nagel et al. Journal of Materials Sciences, (2014) 49 (1), 1-17 U. Szeluga et al. Journal of Thermal Analysis and Calorimetry, (2015) 122, Temperature [ o C]

14 Epopxy composites with carbon foam particles Epoxy matrix EP/TETA CF particles adhesion Thermal properties CF particles (<300mm) + epoxy CF particles distribution (a) (b) Thermo-mechanical properties 48% 68% 107% Hardness 159% 181% Plots of heat release rate (a) and total heat release (b) of: (1) pure epoxy matrix, (2-4) epoxy composites with 5, 10 and 20 % of CF. 100 mm 218% Friction coefficient EP/TETA +20CF +10CF +5CF 0% 5% 10% 20% CF filler content U. Szeluga et al. Composites Part A, (2018) 105, % 5% 10% 20% CF filler content Track [m] 500 mm

15 Graphene studies at CMPW PAN 2D graphene structures Control of graphene layers order Graphene as a suport for 2D metalic layers 3D graphene structures Graphene in batteries

16 Graphene synthesis in 2D form Chemical vapor deposition (CVD) Methane, Ethanol, Acetylene Metallic substrates (Cu, Ni) xide substrates (Si x y, Mg, Al 2 3, Sr) LM and Raman SEM AFM TEM Collaboration with IFW Dresden

17 Graphene synthesis in 2D form Important parameters Precursors Substrates, catalysts Temperature Reaction time Scheme of an APCVD system for graphene synthesis Large area High quality Homogenous Stacking controllable Low cost, simple Scheme of the graphene growth mechanism over Cu substrate ACS Nano, 2012, 6 (10), pp

18 Stacking order control of graphene layers Twisted bilayer 3L 2L 1L 3L 2L 1L Seed 3s Stranski Krastanov(SK) growth 2L 1L 3L 2L1L 5s AB- stacked bilayer 40s Volmer Weber(VW) growth 60s Thermal CVD synthesis Stacking control through optimized CH 4 :H 2 Two growth modes Homogeneous over large areas Twisted Bi-layer: - for chemical reactivity enhancement AB stacked Bi-layer : - for transistor applications etc. Huy Q. Ta, et al. Nano Letters 2016, 16, SK VW

19 In situ freestanding Fe membrane formation A variety of e-beam reactions between graphene and Fe atoms can be explored in situ Zhao, Science, 343 (2014) 1228

20 Electron beam driven in situ chemistry over graphene Formation of mono-layer Zn in graphene pore under electron beam irradiation Huy Q. Ta et al., ACS Nano, 2015, 9 (11), All scale bars = 1nm

21 Electron beam driven in situ chemistry over graphene Single Cr atom catalytic synthesis of graphene Cr SYNTHESIS: Cr from decomposing chromium (III) acetylacetonate Electron irradiation Cr atoms Electron irradiation leads to Cr atom diffusion at graphene edges New graphene forms after Cr atom movement (always growth) Synthesis at room temperature

22 3D graphene synthesis over oxides via CVD Graphene coated oxide nanoparticles: a) alumina, b) titania, c) magnesia, d) carbon shells after magnesia removal Potential use of graphene coated oxide nanoparticles: - batteries, - functionalization, - bioapplications Bachmatiuk, et al., ACS Nano, 7 (2013)

23 Batteries studies using carbon materials 3D graphene potential for electrochemical storage Graphene coated nanoparticles Equipment for coin cells preparation Cycling rates studies Racks for coin batteries cycling Collaboration with IFW Dresden

24 Carbon and coal based materials of high added value - research at CMPW PAN For closer data, see our papers in Science, ACS Nano, Nano Letters, Composites, Carbon, J. Material Science, other

25 Carbon and coal based materials of high added value - research at CMPW PAN Contributions from CMPW PAN: Prof. Barbara Trzebicka, head of the laboratory Composites Prof. Sławomira Pusz Dr. Urszula Szeluga Dr. Bogumiła Kumanek Graphene structures Prof. Mark Rummeli Prof. Alicja Bachmatiuk Ph.D. students

26 Carbon and coal based materials of high added value - research at CMPW PAN Cooperation: Quang-Zhou University, China Leibniz-Institute for Solid State Research and Material Studies Institute of Macromolecular Chemistry, National Academy of Science of Ukraina Institute of rganic Chemistry, Bulgarian Academy of Sciences

Graphene Fundamentals and Emergent Applications

Graphene Fundamentals and Emergent Applications Graphene Fundamentals and Emergent Applications Jamie H. Warner Department of Materials University of Oxford Oxford, UK Franziska Schaffel Department of Materials University of Oxford Oxford, UK Alicja

More information

Understanding Irreducible and Reducible Oxides as Catalysts for Carbon Nanotubes and Graphene Formation

Understanding Irreducible and Reducible Oxides as Catalysts for Carbon Nanotubes and Graphene Formation Wright State University CORE Scholar Special Session 5: Carbon and Oxide Based Nanostructured Materials (2011) Special Session 5 6-2011 Understanding Irreducible and Reducible Oxides as Catalysts for Carbon

More information

Facile synthesis of polypyrrole/graphene nanosheet-based nanocomposites as catalyst support for fuel cells

Facile synthesis of polypyrrole/graphene nanosheet-based nanocomposites as catalyst support for fuel cells Facile synthesis of polypyrrole/graphene nanosheet-based nanocomposites as catalyst support for fuel cells Burcu Saner, Selmiye Alkan Gürsel, Yuda Yürüm Materials Science & Engineering Faculty of Engineering

More information

Supporting Information

Supporting Information Supporting Information Direct Chemical Vapor Deposition-Derived Graphene Glasses Targeting Wide Ranged Applications Jingyu Sun, Yubin Chen, Manish Kr. Priydarshi, Zhang Chen, Alicja Bachmatiuk,, Zhiyu

More information

Solutions for Assignment-8

Solutions for Assignment-8 Solutions for Assignment-8 Q1. The process of adding impurities to a pure semiconductor is called: [1] (a) Mixing (b) Doping (c) Diffusing (d) None of the above In semiconductor production, doping intentionally

More information

Chapter 2. Atomic Structure

Chapter 2. Atomic Structure Chapter 2 Atomic Structure 2 6 (a) Aluminum foil used for storing food weighs about 0. g per square cm. How many atoms of aluminum are contained in one 6.25 cm 2 size of foil? (b) Using the densities and

More information

Graphene-reinforced elastomers for demanding environments

Graphene-reinforced elastomers for demanding environments Graphene-reinforced elastomers for demanding environments Robert J Young, Ian A. Kinloch, Dimitrios G. Papageorgiou, J. Robert Innes and Suhao Li School of Materials and National Graphene Institute The

More information

CVD growth of Graphene. SPE ACCE presentation Carter Kittrell James M. Tour group September 9 to 11, 2014

CVD growth of Graphene. SPE ACCE presentation Carter Kittrell James M. Tour group September 9 to 11, 2014 CVD growth of Graphene SPE ACCE presentation Carter Kittrell James M. Tour group September 9 to 11, 2014 Graphene zigzag armchair History 1500: Pencil-Is it made of lead? 1789: Graphite 1987: The first

More information

SUPPLEMENTARY INFORMATION. Observation of tunable electrical bandgap in large-area twisted bilayer graphene synthesized by chemical vapor deposition

SUPPLEMENTARY INFORMATION. Observation of tunable electrical bandgap in large-area twisted bilayer graphene synthesized by chemical vapor deposition SUPPLEMENTARY INFORMATION Observation of tunable electrical bandgap in large-area twisted bilayer graphene synthesized by chemical vapor deposition Jing-Bo Liu 1 *, Ping-Jian Li 1 *, Yuan-Fu Chen 1, Ze-Gao

More information

Investigation on the growth of CNTs from SiO x and Fe 2 O 3 nanoparticles by in situ TEM

Investigation on the growth of CNTs from SiO x and Fe 2 O 3 nanoparticles by in situ TEM The 5 th Workshop on Nucleation and Growth Mechanisms of SWCNTs Investigation on the growth of CNTs from SiO x and Fe 2 O 3 nanoparticles by in situ TEM Chang Liu Shenyang National Laboratory for Materials

More information

Carbon Nanotubes in Interconnect Applications

Carbon Nanotubes in Interconnect Applications Carbon Nanotubes in Interconnect Applications Page 1 What are Carbon Nanotubes? What are they good for? Why are we interested in them? - Interconnects of the future? Comparison of electrical properties

More information

Three-dimensional flexible and conductive interconnected graphene networks grown by chemical vapour deposition

Three-dimensional flexible and conductive interconnected graphene networks grown by chemical vapour deposition SUPPLEMENTARY INFORMATION Three-dimensional flexible and conductive interconnected graphene networks grown by chemical vapour deposition S1. Characterization of the graphene foam (GF) and GF/PDMS composites

More information

not to be confused with using the materials to template nanostructures

not to be confused with using the materials to template nanostructures Zeolites as Templates: continued Synthesis: Most zeolite syntheses are performed by using template-synthesis not to be confused with using the materials to template nanostructures templates are often surfactants

More information

Supplementary Figure S1. AFM images of GraNRs grown with standard growth process. Each of these pictures show GraNRs prepared independently,

Supplementary Figure S1. AFM images of GraNRs grown with standard growth process. Each of these pictures show GraNRs prepared independently, Supplementary Figure S1. AFM images of GraNRs grown with standard growth process. Each of these pictures show GraNRs prepared independently, suggesting that the results is reproducible. Supplementary Figure

More information

Thermal and mechanical properties of several phthalonitrile resin system

Thermal and mechanical properties of several phthalonitrile resin system Thermal and mechanical properties of several phthalonitrile resin system Heng Zhou, Feng Liu, Yuehai Li, Tong Zhao* Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China Abstract:An

More information

IDENTIFICATION OF CARBON NANOSTRUCTURES IN COALS AND CARBONIZATION PRODUCTS

IDENTIFICATION OF CARBON NANOSTRUCTURES IN COALS AND CARBONIZATION PRODUCTS Article Open Access IDENTIFICATION OF CARBON NANOSTRUCTURES IN COALS AND CARBONIZATION PRODUCTS Vladimir M. Shmalko 1, Oleg I. Zelenskii 1, Elena Yu. Spirina 1, Alexey V. Sytnik 1, Andrey B. Grigorov 2

More information

OCR A GCSE Chemistry. Topic 2: Elements, compounds and mixtures. Properties of materials. Notes.

OCR A GCSE Chemistry. Topic 2: Elements, compounds and mixtures. Properties of materials. Notes. OCR A GCSE Chemistry Topic 2: Elements, compounds and mixtures Properties of materials Notes C2.3a recall that carbon can form four covalent bonds C2.3b explain that the vast array of natural and synthetic

More information

Introduction to Nanotechnology Chapter 5 Carbon Nanostructures Lecture 1

Introduction to Nanotechnology Chapter 5 Carbon Nanostructures Lecture 1 Introduction to Nanotechnology Chapter 5 Carbon Nanostructures Lecture 1 ChiiDong Chen Institute of Physics, Academia Sinica chiidong@phys.sinica.edu.tw 02 27896766 Carbon contains 6 electrons: (1s) 2,

More information

Efficient Hydrogen Evolution. University of Central Florida, 4000 Central Florida Blvd. Orlando, Florida, 32816,

Efficient Hydrogen Evolution. University of Central Florida, 4000 Central Florida Blvd. Orlando, Florida, 32816, Electronic Supplementary Material (ESI) for Energy & Environmental Science. This journal is The Royal Society of Chemistry 2017 MoS 2 /TiO 2 Heterostructures as Nonmetal Plasmonic Photocatalysts for Highly

More information

Supplementary Figure 1 A schematic representation of the different reaction mechanisms

Supplementary Figure 1 A schematic representation of the different reaction mechanisms Supplementary Figure 1 A schematic representation of the different reaction mechanisms observed in electrode materials for lithium batteries. Black circles: voids in the crystal structure, blue circles:

More information

XPS Depth Profiling of Epitaxial Graphene Intercalated with FeCl 3

XPS Depth Profiling of Epitaxial Graphene Intercalated with FeCl 3 XPS Depth Profiling of Epitaxial Graphene Intercalated with FeCl 3 Mahdi Ibrahim Maynard H. Jackson High School Atlanta, GA. Faculty Advisor: Dr. Kristin Shepperd Research Group: Prof. Edward Conrad School

More information

Thermal Transport in Graphene and other Two-Dimensional Systems. Li Shi. Department of Mechanical Engineering & Texas Materials Institute

Thermal Transport in Graphene and other Two-Dimensional Systems. Li Shi. Department of Mechanical Engineering & Texas Materials Institute Thermal Transport in Graphene and other Two-Dimensional Systems Li Shi Department of Mechanical Engineering & Texas Materials Institute Outline Thermal Transport Theories and Simulations of Graphene Raman

More information

Facile Synthesis of Polypyrrole/Graphene Nanosheet-based Nanocomposites as Catalyst Support for Fuel Cells.

Facile Synthesis of Polypyrrole/Graphene Nanosheet-based Nanocomposites as Catalyst Support for Fuel Cells. Facile Synthesis of Polypyrrole/Graphene Nanosheet-based Nanocomposites as Catalyst Support for Fuel Cells. Journal: 2010 MRS Fall Meeting Manuscript ID: MRSF10-1312-II12-08.R1 Manuscript Type: Symposium

More information

SUPPLEMENTARY INFORMATION

SUPPLEMENTARY INFORMATION SUPPLEMENTARY INFORMATION Facile Synthesis of High Quality Graphene Nanoribbons Liying Jiao, Xinran Wang, Georgi Diankov, Hailiang Wang & Hongjie Dai* Supplementary Information 1. Photograph of graphene

More information

STUDYING CARBONISATION WITH RAMAN SPECTROSCOPY

STUDYING CARBONISATION WITH RAMAN SPECTROSCOPY STUDYING CARBONISATION WITH RAMAN SPECTROSCOPY John McDonald-Wharry, Georg Ripberger, Merilyn Manley-Harris, Kim Pickering, 1 Chars and Carbonised Chars Mostly (sp 2 ) carbon in aromatic (and/or graphene-like)

More information

Marriage of Graphene and Cellulose for Reinforced Composite Preparation Zaiton Abdul Majid, Wan Hazman Danial and Mohd Bakri Bakar

Marriage of Graphene and Cellulose for Reinforced Composite Preparation Zaiton Abdul Majid, Wan Hazman Danial and Mohd Bakri Bakar Graphene Malaysia 2016 8-9 th Nov 2016 Marriage of Graphene and Cellulose for Reinforced Composite Preparation Zaiton Abdul Majid, Wan Hazman Danial and Mohd Bakri Bakar Graphene Synthesis Fundamental

More information

The first three categories are considered a bottom-up approach while lithography is a topdown

The first three categories are considered a bottom-up approach while lithography is a topdown Nanowires and Nanorods One-dimensional structures have been called in different ways: nanowires, nanorod, fibers of fibrils, whiskers, etc. The common characteristic of these structures is that all they

More information

Introduction to Nanotechnology Chapter 5 Carbon Nanostructures Lecture 1

Introduction to Nanotechnology Chapter 5 Carbon Nanostructures Lecture 1 Introduction to Nanotechnology Chapter 5 Carbon Nanostructures Lecture 1 ChiiDong Chen Institute of Physics, Academia Sinica chiidong@phys.sinica.edu.tw 02 27896766 Section 5.2.1 Nature of the Carbon Bond

More information

What are Carbon Nanotubes? What are they good for? Why are we interested in them?

What are Carbon Nanotubes? What are they good for? Why are we interested in them? Growth and Properties of Multiwalled Carbon Nanotubes What are Carbon Nanotubes? What are they good for? Why are we interested in them? - Interconnects of the future? - our vision Where do we stand - our

More information

The Effect of Surface Functionalization of Graphene on the Electrical Conductivity of Epoxy-based Conductive Nanocomposites

The Effect of Surface Functionalization of Graphene on the Electrical Conductivity of Epoxy-based Conductive Nanocomposites The Effect of Surface Functionalization of Graphene on the Electrical Conductivity of Epoxy-based Conductive Nanocomposites by Behnam Meschi Amoli, PhD Institute for Polymer Research, Waterloo Institute

More information

Hydrogenation of Single Walled Carbon Nanotubes

Hydrogenation of Single Walled Carbon Nanotubes Hydrogenation of Single Walled Carbon Nanotubes Anders Nilsson Stanford Synchrotron Radiation Laboratory (SSRL) and Stockholm University Coworkers and Ackowledgement A. Nikitin 1), H. Ogasawara 1), D.

More information

SYNTHESIS OF CARBON NANOPARTICLES. 4.0 Production and Characterization of Carbon Nanoballs and other Nanoparticles

SYNTHESIS OF CARBON NANOPARTICLES. 4.0 Production and Characterization of Carbon Nanoballs and other Nanoparticles 4.0 Production and Characterization of Carbon Nanoballs and other Nanoparticles A series of experiments was carried out to synthesize carbon nanoparticles and membrane for fuel cell applications and the

More information

Supplementary Figure 1. (a-b) EDX of Mo 2 and Mo 2

Supplementary Figure 1. (a-b) EDX of Mo 2 and Mo 2 Supplementary Figure 1. (a-b) EDX of Mo 2 C@NPC/NPRGO and Mo 2 C@NPC. Supplementary Figure 2. (a) SEM image of PMo 12 2-PPy, (b) TEM, (c) HRTEM, (d) STEM image and EDX elemental mapping of C, N, P, and

More information

J name Supplementary information Direct synthesis of graphene from adsorbed organic solvent molecules over copper

J name Supplementary information   Direct synthesis of graphene from adsorbed organic solvent molecules over copper Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry Please do 2015 not adjust margins J name PAPER Received 00th January 20xx, Accepted 00th January

More information

Supporting Information for. Highly active catalyst derived from a 3D foam of Fe(PO 3 ) 2 /Ni 2 P for extremely efficient water oxidation

Supporting Information for. Highly active catalyst derived from a 3D foam of Fe(PO 3 ) 2 /Ni 2 P for extremely efficient water oxidation Supporting Information for Highly active catalyst derived from a 3D foam of Fe(PO 3 ) 2 /Ni 2 P for extremely efficient water oxidation Haiqing Zhou a,1, Fang Yu a,1, Jingying Sun a, Ran He a, Shuo Chen

More information

NanoEngineering of Hybrid Carbon Nanotube Metal Composite Materials for Hydrogen Storage Anders Nilsson

NanoEngineering of Hybrid Carbon Nanotube Metal Composite Materials for Hydrogen Storage Anders Nilsson NanoEngineering of Hybrid Carbon Nanotube Metal Composite Materials for Hydrogen Storage Anders Nilsson Stanford Synchrotron Radiation Laboratory (SSRL) and Stockholm University Coworkers and Ackowledgement

More information

Supporting Information for. Selectivity and Activity in Catalytic Methanol Oxidation in the Gas Phase

Supporting Information for. Selectivity and Activity in Catalytic Methanol Oxidation in the Gas Phase 1 / 5 Supporting Information for The Influence of Size-Induced Oxidation State of Platinum Nanoparticles on Selectivity and Activity in Catalytic Methanol Oxidation in the Gas Phase Hailiang Wang, Yihai

More information

lectures accompanying the book: Solid State Physics: An Introduction, by Philip ofmann (2nd edition 2015, ISBN-10: 3527412824, ISBN-13: 978-3527412822, Wiley-VC Berlin. www.philiphofmann.net 1 Bonds between

More information

Initial Stages of Growth of Organic Semiconductors on Graphene

Initial Stages of Growth of Organic Semiconductors on Graphene Initial Stages of Growth of Organic Semiconductors on Graphene Presented by: Manisha Chhikara Supervisor: Prof. Dr. Gvido Bratina University of Nova Gorica Outline Introduction to Graphene Fabrication

More information

Nanomaterials and Chemistry Key Laboratory, Wenzhou University, Wenzhou, (P. R. China).

Nanomaterials and Chemistry Key Laboratory, Wenzhou University, Wenzhou, (P. R. China). Electronic Supplementary Material (ESI) for Nanoscale Synergistically enhanced activity of graphene quantum dot/multi-walled carbon nanotube composites as metal-free catalysts for oxygen reduction reaction

More information

Supplementary Figure S1. AFM image and height profile of GO. (a) AFM image

Supplementary Figure S1. AFM image and height profile of GO. (a) AFM image Supplementary Figure S1. AFM image and height profile of GO. (a) AFM image and (b) height profile of GO obtained by spin-coating on silicon wafer, showing a typical thickness of ~1 nm. 1 Supplementary

More information

The goal of this project is to enhance the power density and lowtemperature efficiency of solid oxide fuel cells (SOFC) manufactured by atomic layer

The goal of this project is to enhance the power density and lowtemperature efficiency of solid oxide fuel cells (SOFC) manufactured by atomic layer Stanford University Michael Shandalov1, Shriram Ramanathan2, Changhyun Ko2 and Paul McIntyre1 1Department of Materials Science and Engineering, Stanford University 2Division of Engineering and Applied

More information

Metal Organic Framework-Derived Metal Oxide Embedded in Nitrogen-Doped Graphene Network for High-Performance Lithium-Ion Batteries

Metal Organic Framework-Derived Metal Oxide Embedded in Nitrogen-Doped Graphene Network for High-Performance Lithium-Ion Batteries Supporting Information for Metal Organic Framework-Derived Metal Oxide Embedded in Nitrogen-Doped Graphene Network for High-Performance Lithium-Ion Batteries Zhu-Yin Sui, Pei-Ying Zhang,, Meng-Ying Xu,

More information

FeP and FeP 2 Nanowires for Efficient Electrocatalytic Hydrogen Evolution Reaction

FeP and FeP 2 Nanowires for Efficient Electrocatalytic Hydrogen Evolution Reaction Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2016 Supporting Information and Nanowires for Efficient Electrocatalytic Hydrogen Evolution Reaction

More information

Supporting Information

Supporting Information Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2014 Supporting Information Controllable Atmospheric Pressure Growth of Mono-layer, Bi-layer and Tri-layer

More information

The Curious Case of Au Nanoparticles

The Curious Case of Au Nanoparticles The Curious Case of Au Nanoparticles Industrial reactions performed by metals 1 Low Au reactivity Predictions are typically based on d-band model Hold well for polycrystalline materials Coinage metals

More information

Carbon nanotubes in a nutshell. Graphite band structure. What is a carbon nanotube? Start by considering graphite.

Carbon nanotubes in a nutshell. Graphite band structure. What is a carbon nanotube? Start by considering graphite. Carbon nanotubes in a nutshell What is a carbon nanotube? Start by considering graphite. sp 2 bonded carbon. Each atom connected to 3 neighbors w/ 120 degree bond angles. Hybridized π bonding across whole

More information

Electronic Supplementary Information

Electronic Supplementary Information Electronic Supplementary Material (ESI) for Dalton Transactions. This journal is The Royal Society of Chemistry 2018 Electronic Supplementary Information In situ growth of heterostructured Sn/SnO nanospheres

More information

SYNTHESIS OF CARBON NANOTUBES BY CATALYTIC CVD USING Fe-Mo/MgO AND Fe- Mo/Al 2 O 3 CATALYSTS. Abstract. Introduction. Experimental

SYNTHESIS OF CARBON NANOTUBES BY CATALYTIC CVD USING Fe-Mo/MgO AND Fe- Mo/Al 2 O 3 CATALYSTS. Abstract. Introduction. Experimental SYNTHESIS OF CARBON NANOTUBES BY CATALYTIC CVD USING Fe-Mo/MgO AND Fe- Mo/Al 2 O 3 CATALYSTS Shinn-Shyong Tzeng, Ting-Bin Liang, Sheng-Chuan Wang, Ting-Yu Wu and Yu-Hun Lin Department of Materials Engineering,

More information

Porous silicon as base material of MEMS-compatible fuel cell components

Porous silicon as base material of MEMS-compatible fuel cell components Porous silicon as base material of MEMS-compatible fuel cell components José Geraldo Alves Brito Neto Tokyo University of Science - Faculty of Science and Technology Department of Mechanical Engineering

More information

II.1.4 Nanoengineering of Hybrid Carbon Nanotube-Metal Nanocluster Composite Materials for Hydrogen Storage

II.1.4 Nanoengineering of Hybrid Carbon Nanotube-Metal Nanocluster Composite Materials for Hydrogen Storage II.1.4 Nanoengineering of Hybrid Carbon Nanotube-Metal Nanocluster Composite Materials for Hydrogen Storage Investigators Kyeongjae (KJ) Cho, Assistant Professor of Mechanical Engineering; Bruce Clemens,

More information

Available online at ScienceDirect. Procedia Engineering 152 (2016 )

Available online at  ScienceDirect. Procedia Engineering 152 (2016 ) Available online at www.sciencedirect.com ScienceDirect Procedia Engineering 152 (2016 ) 706 710 International Conference on Oil and Gas Engineering, OGE-2016 Synthesis of the carbon nanotubes-porous silicon

More information

Achieving Stable and Efficient Water Oxidation by Incorporating NiFe. Layered Double Hydroxide Nanoparticles into Aligned Carbon.

Achieving Stable and Efficient Water Oxidation by Incorporating NiFe. Layered Double Hydroxide Nanoparticles into Aligned Carbon. Electronic Supplementary Material (ESI) for Nanoscale Horizons. This journal is The Royal Society of Chemistry 2015 Achieving Stable and Efficient Water Oxidation by Incorporating NiFe Layered Double Hydroxide

More information

Fabrication Technology, Part I

Fabrication Technology, Part I EEL5225: Principles of MEMS Transducers (Fall 2004) Fabrication Technology, Part I Agenda: Microfabrication Overview Basic semiconductor devices Materials Key processes Oxidation Thin-film Deposition Reading:

More information

Workshop II Nanomaterials Surfaces and Layers Commercialising Carbon Nanotubes

Workshop II Nanomaterials Surfaces and Layers Commercialising Carbon Nanotubes Workshop II Nanomaterials Surfaces and Layers Commercialising Carbon Nanotubes Harry Swan, Carbon Nanomaterials Business Manager, Thomas Swan & Co. Ltd. Introduction Thomas Swan & Co. Ltd. Carbon Nanotubes

More information

Supplementary Figure S1. AFM characterizations and topographical defects of h- BN films on silica substrates. (a) (c) show the AFM height

Supplementary Figure S1. AFM characterizations and topographical defects of h- BN films on silica substrates. (a) (c) show the AFM height Supplementary Figure S1. AFM characterizations and topographical defects of h- BN films on silica substrates. (a) (c) show the AFM height topographies of h-bn film in a size of ~1.5µm 1.5µm, 30µm 30µm

More information

Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK

Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK 5 th Australasian Congress on Applied Mechanics, ACAM 2007 10-12 December 2007, Brisbane, Australia Toughening mechanisms in novel nano-silica epoxy polymers A.J. Kinloch 1, B.B. Johnsen 1, R.D. Mohammed

More information

Functionalized lignin nanofibres: An alternative platform to valueadded lignin-based materials

Functionalized lignin nanofibres: An alternative platform to valueadded lignin-based materials Functionalized lignin nanofibres: An alternative platform to valueadded lignin-based materials John F. Kadla, Yingjie Li, Li-Ting Lin, Ian Dallmeyer, George Gao, Frank Ko H H 3 C H Introduction - Lignin

More information

Supporting Information. Direct Growth of Graphene Films on 3D Grating. Structural Quartz Substrates for High-performance. Pressure-Sensitive Sensor

Supporting Information. Direct Growth of Graphene Films on 3D Grating. Structural Quartz Substrates for High-performance. Pressure-Sensitive Sensor Supporting Information Direct Growth of Graphene Films on 3D Grating Structural Quartz Substrates for High-performance Pressure-Sensitive Sensor Xuefen Song, a,b Tai Sun b Jun Yang, b Leyong Yu, b Dacheng

More information

Supporting Information

Supporting Information Supporting Information Trace Levels of Copper in Carbon Materials Show Significant Electrochemical CO 2 Reduction Activity Yanwei Lum,,,, Youngkook Kwon,,, Peter Lobaccaro,,,# Le Chen,, Ezra Lee Clark,,,#

More information

Carbon nanomaterials. Gavin Lawes Wayne State University.

Carbon nanomaterials. Gavin Lawes Wayne State University. Carbon nanomaterials Gavin Lawes Wayne State University glawes@wayne.edu Outline 1. Carbon structures 2. Carbon nanostructures 3. Potential applications for Carbon nanostructures Periodic table from bpc.edu

More information

Electronic Supplementary Information

Electronic Supplementary Information Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 214 Electronic Supplementary Information Ultrathin and High-Ordered CoO Nanosheet

More information

DEPARTMENT OF POLYMER AND PROCESS ENGINEERING (http://www.uet.edu.pk/polymer.htm)

DEPARTMENT OF POLYMER AND PROCESS ENGINEERING (http://www.uet.edu.pk/polymer.htm) DEPARTMENT OF POLYMER AND PROCESS ENGINEERING (http://www.uet.edu.pk/polymer.htm) Programs Offered The Department offers the following degree programmes a) M.Sc. Polymer and Process Engineering b) Ph.D.

More information

Figure 1: Graphene release, transfer and stacking processes. The graphene stacking began with CVD

Figure 1: Graphene release, transfer and stacking processes. The graphene stacking began with CVD Supplementary figure 1 Graphene Growth and Transfer Graphene PMMA FeCl 3 DI water Copper foil CVD growth Back side etch PMMA coating Copper etch in 0.25M FeCl 3 DI water rinse 1 st transfer DI water 1:10

More information

Imaging Carbon materials with correlative Raman-SEM microscopy. Introduction. Raman, SEM and FIB within one chamber. Diamond.

Imaging Carbon materials with correlative Raman-SEM microscopy. Introduction. Raman, SEM and FIB within one chamber. Diamond. Imaging Carbon materials with correlative Raman-SEM microscopy Application Example Carbon materials are widely used in many industries for their exceptional properties. Electric conductance, light weight,

More information

Supporting Information

Supporting Information Copyright WILEY-VCH Verlag GmbH & Co. KGaA, 69469 Weinheim, Germany, 2016. Supporting Information for Adv. Mater., DOI: 10.1002/adma.201604015 High Performance Graphene/Ni 2 P Hybrid Anodes for Lithium

More information

Carbon Nanomaterials: Nanotubes and Nanobuds and Graphene towards new products 2030

Carbon Nanomaterials: Nanotubes and Nanobuds and Graphene towards new products 2030 Carbon Nanomaterials: Nanotubes and Nanobuds and Graphene towards new products 2030 Prof. Dr. Esko I. Kauppinen Helsinki University of Technology (TKK) Espoo, Finland Forecast Seminar February 13, 2009

More information

Reviewers' Comments: Reviewer #1 (Remarks to the Author)

Reviewers' Comments: Reviewer #1 (Remarks to the Author) Reviewers' Comments: Reviewer #1 (Remarks to the Author) The manuscript reports the synthesis of a series of Mo2C@NPC-rGO hybrid HER electrocatalysts by employing the precursor of PMo12 (H3PMo12O40)-PPy/rGO

More information

Special Properties of Au Nanoparticles

Special Properties of Au Nanoparticles Special Properties of Au Nanoparticles Maryam Ebrahimi Chem 7500/750 March 28 th, 2007 1 Outline Introduction The importance of unexpected electronic, geometric, and chemical properties of nanoparticles

More information

The Effect of Surface Functionalization of Graphene on the Electrical Conductivity of Epoxy-based Conductive Nanocomposites

The Effect of Surface Functionalization of Graphene on the Electrical Conductivity of Epoxy-based Conductive Nanocomposites The Effect of Surface Functionalization of Graphene on the Electrical Conductivity of Epoxy-based Conductive Nanocomposites Behnam Meschi Amoli 1,2,3,4, Josh Trinidad 1,2,3,4, Norman Y. Zhou 1,3,5, Boxin

More information

NANOCATALYSIS ON NOVEL SUPPORTS GRAPHENE SHEETS AND HIGHLY POROUS COORDINATION POLYMERS

NANOCATALYSIS ON NOVEL SUPPORTS GRAPHENE SHEETS AND HIGHLY POROUS COORDINATION POLYMERS NANOCATALYSIS ON NOVEL SUPPORTS GRAPHENE SHEETS AND HIGHLY POROUS COORDINATION POLYMERS M. Samy El-Shall Department of Chemistry Virginia Commonwealth University Richmond, Virginia 23284-2006 IWAM-09,

More information

Supporting Information. Bi-functional Catalyst with Enhanced Activity and Cycle Stability for. Rechargeable Lithium Oxygen Batteries

Supporting Information. Bi-functional Catalyst with Enhanced Activity and Cycle Stability for. Rechargeable Lithium Oxygen Batteries Supporting Information Hierarchical Mesoporous/Macroporous Perovskite La 0.5 Sr 0.5 CoO 3-x Nanotubes: a Bi-functional Catalyst with Enhanced Activity and Cycle Stability for Rechargeable Lithium Oxygen

More information

Mechanical properties of graphene

Mechanical properties of graphene Costas GALIOTIS Mechanical properties of graphene BSc in Chemistry University of Athens PhD in Materials Science- University of London, Director of the Institute of Chemical Engineering and High Temperature

More information

Nanostrukturphysik Übung 2 (Class 3&4)

Nanostrukturphysik Übung 2 (Class 3&4) Nanostrukturphysik Übung 2 (Class 3&4) Prof. Yong Lei & Dr. Yang Xu 2017.05.03 Fachgebiet 3D-Nanostrukturierung, Institut für Physik Contact: yong.lei@tu-ilmenau.de (3748), yang.xu@tuilmenau.de (4902)

More information

Supplementary Information

Supplementary Information Supplementary Information Supplementary Figure 1. fabrication. A schematic of the experimental setup used for graphene Supplementary Figure 2. Emission spectrum of the plasma: Negative peaks indicate an

More information

Top down and bottom up fabrication

Top down and bottom up fabrication Lecture 24 Top down and bottom up fabrication Lithography ( lithos stone / graphein to write) City of words lithograph h (Vito Acconci, 1999) 1930 s lithography press Photolithography d 2( NA) NA=numerical

More information

Instantaneous reduction of graphene oxide at room temperature

Instantaneous reduction of graphene oxide at room temperature Instantaneous reduction of graphene oxide at room temperature Barun Kuma Burman, Pitamber Mahanandia and Karuna Kar Nanda Materials Research Centre, Indian Institute of Science, Bangalore-560012, India

More information

ARC-ASSISTED CO-CONVERSION OF COAL-BASED CARBON AND ACETYLENE

ARC-ASSISTED CO-CONVERSION OF COAL-BASED CARBON AND ACETYLENE ARC-ASSISTED CO-CONVERSION OF COAL-BASED CARBON AND ACETYLENE Jieshan Qiu*, Yongfeng Li, Yunpeng Wang Carbon Research Laboratory, Center for Nano Materials and Science, School of Chemical Engineering,

More information

Growth of silver nanocrystals on graphene by simultaneous reduction of graphene oxide and silver ions with a rapid and efficient one-step approach

Growth of silver nanocrystals on graphene by simultaneous reduction of graphene oxide and silver ions with a rapid and efficient one-step approach Growth of silver nanocrystals on graphene by simultaneous reduction of graphene oxide and silver ions with a rapid and efficient one-step approach Xiu-Zhi Tang, a Zongwei Cao, b Hao-Bin Zhang, a Jing Liu

More information

1-amino-9-octadecene, HAuCl 4, hexane, ethanol 55 o C, 16h AuSSs on GO

1-amino-9-octadecene, HAuCl 4, hexane, ethanol 55 o C, 16h AuSSs on GO Supplementary Figures GO Supplementary Figure S1 1-amino-9-octadecene, HAuCl 4, hexane, ethanol 55 o C, 16h AuSSs on GO Schematic illustration of synthesis of Au square sheets on graphene oxide sheets.

More information

Electrochemically Synthesized Multi-block

Electrochemically Synthesized Multi-block Electrochemically Synthesized Multi-block Nanorods Sungho Park SungKyunKwan University, Department of Chemistry & SKKU Advanced Institute of Nanotechnology (SAINT) J. Am. Chem. Soc. 2003, 125, 2282-2290

More information

One-Step Combustion Synthesis of Carbon-Coated Nanoparticles using Multiple-Diffusion Flames

One-Step Combustion Synthesis of Carbon-Coated Nanoparticles using Multiple-Diffusion Flames Paper # 070HE-0031 Topic: Heterogeneous Combustion, Sprays & Droplets 8 th U. S. National Combustion Meeting Organized by the Western States Section of the Combustion Institute and hosted by the University

More information

Formation of N-doped Graphene Nanoribbons via Chemical Unzipping

Formation of N-doped Graphene Nanoribbons via Chemical Unzipping SUPPORTING INFORMATION FILE FOR: Formation of N-doped Graphene Nanoribbons via Chemical Unzipping Rodolfo Cruz-Silva 1, Aaron Morelos-Gómez 3, Sofia Vega-Díaz 1, Ferdinando Tristán- López 1, Ana L. Elias

More information

PP/MWCNT/OC Nanocomposites Rheological and Mechanical Properties

PP/MWCNT/OC Nanocomposites Rheological and Mechanical Properties International Workshop, Action COST FA0904 Characterization, Mechanics and Performance of Innovative Polymer Nanomaterials for Food Packaging Application, September 24-25, 2013, Varna, Bulgaria PP/MWCNT/OC

More information

Plasma Deposition (Overview) Lecture 1

Plasma Deposition (Overview) Lecture 1 Plasma Deposition (Overview) Lecture 1 Material Processes Plasma Processing Plasma-assisted Deposition Implantation Surface Modification Development of Plasma-based processing Microelectronics needs (fabrication

More information

performance electrocatalytic or electrochemical devices. Nanocrystals grown on graphene could have

performance electrocatalytic or electrochemical devices. Nanocrystals grown on graphene could have Nanocrystal Growth on Graphene with Various Degrees of Oxidation Hailiang Wang, Joshua Tucker Robinson, Georgi Diankov, and Hongjie Dai * Department of Chemistry and Laboratory for Advanced Materials,

More information

High-density data storage: principle

High-density data storage: principle High-density data storage: principle Current approach High density 1 bit = many domains Information storage driven by domain wall shifts 1 bit = 1 magnetic nanoobject Single-domain needed Single easy axis

More information

Surface Modification of Carbon Fibres for Interface Improvement in Textile Composites

Surface Modification of Carbon Fibres for Interface Improvement in Textile Composites Appl Compos Mater (2018) 25:853 860 https://doi.org/10.1007/s10443-018-9727-8 Surface Modification of Carbon Fibres for Interface Improvement in Textile Composites Jiawen Qiu 1 & Jiashen Li 1 & Zishun

More information

Supplementary information for:

Supplementary information for: Supplementary information for: Solvent dispersible nanoplatinum-carbon nanotube hybrids for application in homogeneous catalysis Yuhong Chen, Xueyan Zhang and Somenath Mitra* Department of Chemistry and

More information

Ultrasonic Anisotropic Conductive Films (ACFs) Bonding of Flexible Substrates on Organic Rigid Boards at Room Temperature

Ultrasonic Anisotropic Conductive Films (ACFs) Bonding of Flexible Substrates on Organic Rigid Boards at Room Temperature Ultrasonic Anisotropic Conductive Films (ACFs) Bonding of Flexible Substrates on Organic Rigid Boards at Room Temperature Kiwon Lee, Hyoung Joon Kim, Il Kim, and Kyung Wook Paik Nano Packaging and Interconnect

More information

Graphene The Search For Two Dimensions. Christopher Scott Friedline Arizona State University

Graphene The Search For Two Dimensions. Christopher Scott Friedline Arizona State University Graphene The Search For Two Dimensions Christopher Scott Friedline Arizona State University What Is Graphene? Single atomic layer of graphite arranged in a honeycomb crystal lattice Consists of sp 2 -bonded

More information

Bandgap engineering through nanocrystalline magnetic alloy grafting on. graphene

Bandgap engineering through nanocrystalline magnetic alloy grafting on. graphene Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics. This journal is the Owner Societies 2014 Electronic Supplementary Information (ESI) for Bandgap engineering through nanocrystalline

More information

Graphene Chemistry. Family of Graphene: Timeline of selected events in the history of the preparation, isolation and characterization of graphene.

Graphene Chemistry. Family of Graphene: Timeline of selected events in the history of the preparation, isolation and characterization of graphene. Karla S. Feu Topics included in this group meeting: Graphene background, synthesis, application as catalysts, characterization and perspectives. Family of Graphene: Not covered in this group meeting: Applications

More information

A new method of growing graphene on Cu by hydrogen etching

A new method of growing graphene on Cu by hydrogen etching A new method of growing graphene on Cu by hydrogen etching Linjie zhan version 6, 2015.05.12--2015.05.24 CVD graphene Hydrogen etching Anisotropic Copper-catalyzed Highly anisotropic hydrogen etching method

More information

Graphene. Tianyu Ye November 30th, 2011

Graphene. Tianyu Ye November 30th, 2011 Graphene Tianyu Ye November 30th, 2011 Outline What is graphene? How to make graphene? (Exfoliation, Epitaxial, CVD) Is it graphene? (Identification methods) Transport properties; Other properties; Applications;

More information

Controlled self-assembly of graphene oxide on a remote aluminum foil

Controlled self-assembly of graphene oxide on a remote aluminum foil Supplementary Information Controlled self-assembly of graphene oxide on a remote aluminum foil Kai Feng, Yewen Cao and Peiyi Wu* State key Laboratory of Molecular Engineering of Polymers, Department of

More information

raw materials C V Mn Mg S Al Ca Ti Cr Si G H Nb Na Zn Ni K Co A B C D E F

raw materials C V Mn Mg S Al Ca Ti Cr Si G H Nb Na Zn Ni K Co A B C D E F Today s advanced batteries require a range of specialized analytical tools to better understand the electrochemical processes that occur during battery cycling. Evans Analytical Group (EAG) offers a wide-range

More information

Flexible Asymmetric Supercapacitors with High Energy and. High Power Density in Aqueous Electrolytes

Flexible Asymmetric Supercapacitors with High Energy and. High Power Density in Aqueous Electrolytes Supporting Information Flexible Asymmetric Supercapacitors with High Energy and High Power Density in Aqueous Electrolytes Yingwen Cheng, 1,2 Hongbo Zhang, 1,2 Songtao Lu, 1,2,3 Chakrapani V. Varanasi,

More information

Recap (so far) Low-Dimensional & Boundary Effects

Recap (so far) Low-Dimensional & Boundary Effects Recap (so far) Ohm s & Fourier s Laws Mobility & Thermal Conductivity Heat Capacity Wiedemann-Franz Relationship Size Effects and Breakdown of Classical Laws 1 Low-Dimensional & Boundary Effects Energy

More information

Intensity (a.u.) Intensity (a.u.) Raman Shift (cm -1 ) Oxygen plasma. 6 cm. 9 cm. 1mm. Single-layer graphene sheet. 10mm. 14 cm

Intensity (a.u.) Intensity (a.u.) Raman Shift (cm -1 ) Oxygen plasma. 6 cm. 9 cm. 1mm. Single-layer graphene sheet. 10mm. 14 cm Intensity (a.u.) Intensity (a.u.) a Oxygen plasma b 6 cm 1mm 10mm Single-layer graphene sheet 14 cm 9 cm Flipped Si/SiO 2 Patterned chip Plasma-cleaned glass slides c d After 1 sec normal Oxygen plasma

More information