Electrolytic membranes : Ion conduction in nanometric channels
|
|
- Darleen Grant
- 5 years ago
- Views:
Transcription
1 Electrolytic membranes : Ion conduction in nanometric channels Philippe Knauth Aix Marseille Université - CNRS Marseille, France Philippe Knauth 1
2 utline of the Presentation 1. Introduction 2. Synthesis 3. Properties 4. Conclusion/Questions
3 utline of the Presentation 1. Introduction 2. Synthesis 3. Properties 4. Conclusion/Questions
4 Electrochemical energy technologies Polymer Electrolyte Membrane Fuel Cells (PEMFC) Small-scale energy conversion Transportation, small stationary, portable microelectronics Redox flow batteries Large-scale energy storage «Smart grid» Hydrated Polymer Electrolytes hierarchical porous structure Interconnected nanometric channels (percolation and tortuosity) Challenges High cost (Nafion, Pt) Insufficient durability Difficult water management Limited ionic conductivity Examples: Nafion, SPEEK H. Hou, M. L. Di Vona, P. Knauth, ChemSusChem, 4, 1526 (2011) 4 H S n G. Gebel Science 2008
5 Nafion: relations between membrane stiffness, hydration, morphology and conductivity G. Gebel, Polymer,
6 Microstructure: aqueous nanometric channels 6
7 Schematic microstructure of hydrated proton-conducting polymers Hydrophilic domain with sulfonic acid groups and absorbed water: proton conductivity Hydrophobic polymer backbone: thermal and mechanical stability Dead-end Pocket (Tortuosity) K. D. Kreuer, J. Membr. Sci Percolating nanodomains Y. D. Premchand, M. L. Di Vona, P. Knauth in Nanocomposites: Ionic Conducting Materials and Structural Spectroscopies, Springer, New York (2008). 7
8 PLYMER ELECTRLYTES Space charge regions Sulfonated Poly-Ether-Ether-Ketone (SPEEK) S 3 H FP C X Pr. Philippe Knauth 8
9 Aromatic polymers PolyPhenylSulfone PolyEtherSulfone PolySulfone PolyEtherEtherKetone Easy to functionalize Less environmental problems than perfluorinated polymers Stable in oxidative and reductive media Thermally stable Low gas permeability Low cost (inexpensive monomers) Philippe Knauth April/May 2015 Erasmus Univ. Roma Tor Vergata 9
10 Comparison of SAP with Nafion Nafion Example: Sulfonated Poly-Ether-Ether-Ketone (SPEEK) Properties of SAP Inexpensive synthesis and environmentally friendly Non-fluorinated monomers Very high thermal stability (>450ºC) Strong aromatic bonds, rigid chains with little mobility Good mechanical properties Low molar mass: chains free of entanglements High glass transition (>150ºC): high elastic strength and elastic modulus, low fracture elongation Proton conductivity Less connected hydrated domains (percolation!) More tortuous channels 10
11 utline of the Presentation 1. Introduction 2. Synthesis 3. Properties 4. Conclusion/Questions
12 Protonic membranes DS = Groups S3H Repeat Unit 12
13 SPEEK Membrane Synthesis Sulfonation of PEEK in H 2 S 4 98% SPEEK DMS Precipitation of SPEEK in Ice Water Purification in Dialysis Membranes Film Casting: Solvent DMS Philippe Knauth April/May 2015 Erasmus Univ. Roma Tor Vergata 13
14 Protonic membranes DS = Groups S3H Repeat Unit Crosslinking! As cast membrane instable in water! Crosslinking by thermal treatment at 180 C 14
15 Dependence on thermal treatment time Wwet Wdry WU (%) = 100 W dry Water uptake Mechanical stability increases dramatically!!! Young modulus 15
16 Anion Exchange Membranes CH H 3 C 3 S N + CH 3 CH 3 + N H 3 C CH 3 CH3 CH 3 cationic groups e H 2 + 2H - 2H 2 + 2e ½ 2 + H 2 + 2e 2H - H 2 +1/2 2 H 2 Ea = V Ec = 0.39 V (ph = 14) H 2 -H 2 2H - + H 2 2H 2 + 2e H - 1/2 2 + H 2 + 2e 2H H 2 16
17 C:\Users\Luca\Desktop\dettagli.tif Anionic conducting membranes Sulfaminated PolyEtherEtherKetone (PEEK) Chlorosulfonation reaction Amination reaction DSA = Groups S 2 - NR 2 Repeat Unit Activation of the secondary amine Reaction with different acids by immersion in 2M solutions 24 h at RT: HCl, HBr, H 2 S 4, HN 3, and H 3 P 4 Secondary amine! R-S 2 -NR 2 + HX R-S 2 -NHR 2+ + X - 17
18 utline of the Presentation 1. Introduction 2. Synthesis 3. Properties 4. Conclusion/Questions
19 Conductivity measurements by impedance spectroscopy (fully humidified) Pt Counter Electrode 3-Electrode Configuration Reference Electrode (Ag/AgCl) Working electrode 2-Electrode Configuration in Swagelok Cells (stainless steel or Li electrodes) Reference Counter Electrode Working Electrode 19
20 IMPEDANCE SPECTRSCPY Investigate the membrane conductivity σ ionic Membrane (thickness d) + membrane-electrode interface (area A) Resistance R in series with a parallel RC, R(CR) model σ AC amplitude: 20 mv ionic 1 d = = ρ R A Frequency: 100 khz 1 Hz 20
21 Study of Thermal Stability: Thermogravimetry Main Chain Sulfonamide Group Main Chain PEEK sulfaminated (dimethylamine and HCl) Trimethylammonium Group PSU (fonctionnalised with trimethylamine)
22 Mechanical Tests (tensile stress-strain) Adamel-Lhomargy Testometric M CT T=25 C, ambient RH Crosshead speed: 5 mm/min 22
23 Mechanical properties (tensile stress-strain tests) PEEK sulfaminated (dimethylamine and HCl) E>1,4 GPa, σ MAX =53 MPa, ε=6% Addition of acid: slight plasticizer effect
24 Reactant permeability: Vanadium ions in redox flow batteries 1,5 M VS 4 + H 2 S 4 3 M Permeation cell 1,5 M MgS 4 + H 2 S 4 3 M Stirrer NAFIN 1.4*10-6 cm2 min-1 SPEEK 1.5*10-7 cm2 min-1 PEEK functionalized with diethylammonium groups 5*10-10 cm2 min-1 Donnan effect! 24
25 Solid Ion Conductors Solid-State Ionics 2002 Volume 756 Editors: P. Knauth, J.-M. Tarascon, E. Traversa, H. L. Tuller Solid State Ionics 2004 Volume 835 Editors: P. Knauth, C. Masquelier, E. Traversa, E. D. Wachsman
26 Questions? Post-docs and PhD students: Dr. H. Hou Dr. D. Marani Dr. E. Sgreccia Dr. R. Narducci L. Pasquini M. Braglia I. V. Ferrari EU FP7 (JU-FCH 2008) LLIPEM project MESC Erasmus Mundus Master 26
Proton-Conducting Nanocomposites and Hybrid Polymers
Proton-onducting Nanocomposites and Hybrid Polymers Y.D. Premchand 1, M.L. Di Vona 2, and P. Knauth 1 1 Introduction This chapter is about proton-conducting nanocomposites and hybrid polymers. Before beginning
More informationStudy on mechanical model of Nafion membrane
ICCM4 8-3 th July, Cambridge, England Abstract Study on mechanical model of Nafion membrane *I. Riku, K. Marui and K. Mimura Graduate School of Engineering, Osaka Prefecture niversity, -, Gakuen-cho, Naka-ku,
More informationHydrocarbon Fuel Cell Membranes Containing Perfluorosulfonic Acid Group
Hydrocarbon Fuel Cell Membranes Containing Perfluorosulfonic Acid Group Ying Chang and Chulsung Bae Department of Chemistry & Chemical Biology Rensselaer Polytechnic Institute, Troy, NY 12180 Collaborators
More informationSynthesis of Highly Ion-Conductive Polymers for Fuel Cells (for H + and OH )
Synthesis of Highly Ion-Conductive Polymers for Fuel Cells (for H + and OH ) Chulsung Bae Department of Chemistry & Chemical Biology Rensselaer Polytechnic Institute Collaborators: Michael A. Hickner (Penn
More informationStudies on PVA based nanocomposite Proton Exchange Membrane for Direct methanol fuel cell (DMFC) applications
IOP Conference Series: Materials Science and Engineering OPEN ACCESS Studies on based nanocomposite Proton Exchange Membrane for Direct methanol fuel cell (DMFC) applications To cite this article: P Bahavan
More informationSupporting Information for Polybenzimidazolium Salts: A New Class of. Anion-Conducting Polymer
Supporting Information for Polybenzimidazolium Salts: A ew Class of Anion-Conducting Polymer Owen D. Thomas, Kristen J. W. Y. Soo, Timothy J. Peckham, Mahesh P. Kulkarni and Steven Holdcroft* Department
More informationDevelopment of Bifunctional Electrodes for Closed-loop Fuel Cell Applications. Pfaffenwaldring 6, Stuttgart, Germany
Development of Bifunctional Electrodes for Closed-loop Fuel Cell Applications S. Altmann a,b, T. Kaz b, K. A. Friedrich a,b a Institute of Thermodynamics and Thermal Engineering, University Stuttgart,
More informationStress-Strain Curves of Nafion Membranes in Acid and Salt Forms
A R T G O T É N O E N T Í F O Stress-Strain urves of Nafion Membranes in Acid and Salt Forms Yoshio Kawano nstituto de Química, USP Yanqia Wang, Richard A. Palmer Department of hemistry, Duke University
More informationTheory of Charge Transport in Mixed Conductors: Description of Interfacial Contributions Compatible with the Gibbs Thermodynamics
Theory of Charge Transport in Mixed Conductors: Description of Interfacial Contributions Compatible with the Gibbs Thermodynamics Mikhail A. Vorotyntsev LSEO-UMR 5188 CNRS, Université de Bourgogne, Dijon,
More informationAdvanced Analytical Chemistry Lecture 12. Chem 4631
Advanced Analytical Chemistry Lecture 12 Chem 4631 What is a fuel cell? An electro-chemical energy conversion device A factory that takes fuel as input and produces electricity as output. O 2 (g) H 2 (g)
More informationSupporting Information
Electronic Supplementary Material (ESI) for Sustainable Energy & Fuels. This journal is The Royal Society of Chemistry 2018 Supporting Information Poly(ionic liquid) Binders as Ion conductors and Polymer
More informationFuel Cells Jong Hak Kim Chemical Engineering Yonsei University
에너지소재특론 Fuel Cells Jong Hak Kim Chemical Engineering Yonsei University Fuel Cells Electrochemical cell which can continuously convert the chemical energy of a fuel and an oxidant to electrical energy PEMFC
More informationElectrolytes for Fuel Cells
Electrolytes for Fuel Cells Tom Zawodzinski Materials Science and Technology Division Los Alamos National Laboratory Air-Breather Fuel Cell Stack Systems Laptop Demo DCH/Enable Prototype Small Battery
More informationSynthesis of hydrophilic monomer, 1,4-dibromo-2,5-di[4-(2,2- dimethylpropoxysulfonyl)phenyl]butoxybenzene (Scheme 1).
Supporting Information Materials. Hydroquinone, potassium carbonate, pyridine, tetrahydrofuran (THF for organic synthesis) were purchased from Wako Pure Chemical Industries Ltd and used as received. Chlorosulfuric
More informationAugust 27, International ANSYS Conference Nick Reynolds, Ph.D. Director, Materials Pre-Sales, US, Accelrys
Multiscale modeling and simulation developing solutions which link the atomistic, mesoscale, and engineering scales August 27, 2008 2008 International ANSYS Conference Nick Reynolds, Ph.D. Director, Materials
More information768 Lecture #11 of 18
Lecture #11 of 18 768 769 Q: What s in this set of lectures? A: B&F Chapter 2 main concepts: Section 2.1 : Section 2.3: Salt; Activity; Underpotential deposition Transference numbers; Liquid junction potentials
More informationActivity. Modeling the Fuel Cell Reaction. Overview. Advance Preparation. Background Information
4 Activity 1-2 class sessions Modeling the uel Cell Reaction 2011 Regents of the University of California Overview n order to understand the chemistry of fuel cells, students are introduced to oxidation-reduction
More informationNanostructured bacterial cellulose poly(4-styrene sulfonic acid) composite membranes
Nanostructured bacterial cellulose poly(4-styrene sulfonic acid) composite membranes with high storage modulus and protonic conductivity Tiago D. O. Gadim, a Andrea G. P. R. Figueiredo, b Nataly C. Rosero-Navarro,
More informationModeling the Behaviour of a Polymer Electrolyte Membrane within a Fuel Cell Using COMSOL
Modeling the Behaviour of a Polymer Electrolyte Membrane within a Fuel Cell Using COMSOL S. Beharry 1 1 University of the West Indies, St. Augustine, Trinidad and Tobago Abstract: In recent years, scientists
More informationHigh-Performance Blend Membranes Composed of An Amphoteric Copolymer Containing Supramolecular Nanosieves for Direct Methanol Fuel Cells
Electonic Supplementary Information (ESI) for Chemical Communications High-Performance Blend Membranes Composed of An Amphoteric Copolymer Containing Supramolecular Nanosieves for Direct Methanol Fuel
More informationReview A Perspective on Low-Temperature Water Electrolysis Challenges in Alkaline and Acidic Technology
Int. J. Electrochem. Sci., 13 (2018) 1173 1226, doi: 10.20964/2018.02.26 International Journal of ELECTROCHEMICAL SCIENCE www.electrochemsci.org Review A Perspective on Low-Temperature Water Electrolysis
More informationMaterials Chemistry A
Journal of Materials Chemistry A Accepted Manuscript This is an Accepted Manuscript, which has been through the Royal Society of Chemistry peer review process and has been accepted for publication. Accepted
More informationProton channels FUEL CELLS
Page 1 FUEL CELLS Proton channels The structure of Nafion, the polymer electrolyte membrane used in some fuel cells, has been extensively debated over recent decades. Now, a newly proposed model reveals
More informationPEMFC on line diagnosis via acoustic emission measurements. B. Legros, P.-X. Thivel*, Y Bultel, R.P. Nogueira
PEMFC on line diagnosis via acoustic emission measurements B. Legros, P.-X. Thivel*, Y Bultel, R.P. Nogueira Laboratory of electrochemistry and physico-chemistry of materials and interfaces (LEPMI) Science
More informationIN VITRO DEGRADATION AND EROSION OF DEGRADABLE LACTATE SEGMENTED POLYURETHANES
Journal of Optoelectronics and Advanced Materials Vol. 7, No. 6, December 2005, p. 2803-2808 IN VITRO DEGRADATION AND EROSION OF DEGRADABLE LACTATE SEGMENTED POLYURETHANES V. Melnig *, L. Obreja, A. Garlea
More informationResearch Article. Synthesis and characterization of hybrid zeolite, a chitosan sulfonated membrane for proton exchange membrane fuel cell (PEMFC)
Available online www.jocpr.com Journal of Chemical and Pharmaceutical Research, 2014, 6(9):71-76 Research Article ISSN : 0975-7384 CODEN(USA) : JCPRC5 Synthesis and characterization of hybrid zeolite,
More informationSupporting information. Free Standing Graphene Oxide Paper: New Polymer Electrolyte for Polymer Electrolyte Fuel Cells. Ravikumar, Keith Scott
Supporting information Free Standing Graphene Oxide Paper: New Polymer Electrolyte for Polymer Electrolyte Fuel Cells Ravikumar, Keith Scott School of chemical Engineering and advanced Materials, Newcastle
More informationPFSA Aquivion membranes: general features and degradation mechanisms. Luca Merlo*, C. Oldani, M. Apostolo, V. Arcella Solvay Specialty Polymers SPA
PFSA Aquivion membranes: general features and degradation mechanisms Luca Merlo*, C. Oldani, M. Apostolo, V. Arcella Solvay Specialty Polymers SPA Agenda PFSA ionomers Aquivion general features PFSA degradation
More informationSupplementary Information. Seeding Approach to Noble Metal Decorated Conducting Polymer Nanofiber Network
Supplementary Information Seeding Approach to Noble Metal Decorated Conducting Polymer Nanofiber Network Zhen Liu, Selcuk Poyraz, Yang Liu, Xinyu Zhang* Department of Polymer and Fiber Engineering, Auburn
More informationOxygen permeation studies on alternative proton exchange membranes designed for elevated temperature operation
Electrochimica Acta 48 (2003) 1845/1859 www.elsevier.com/locate/electacta Oxygen permeation studies on alternative proton exchange membranes designed for elevated temperature operation Lei Zhang, Chengsong
More informationNANOCOMPOSITE CATION EXCHANGE MEMBRANE WITH FOULING RESISTANCE AND ENHANCED SALINITY GRADIENT POWER GENERATION FOR REVERSE ELECTRODIALYSIS
NANOCOMPOSITE CATION EXCHANGE MEMBRANE WITH FOULING RESISTANCE AND ENHANCED SALINITY GRADIENT POWER GENERATION FOR REVERSE ELECTRODIALYSIS X I N T O N G, B O P E N G Z H A N G, A N D Y O N G S H E N G
More informationThe Effect of Nanoclay Loading on Physico-chemical Properties of SPEEK Electrolyte Membrane
Jurnal Teknologi Full paper The Effect of Nanoclay Loading on Physico-chemical Properties of SPEEK Electrolyte Membrane Juhana Jaafar a *, A. F. Ismail a a Advanced Membrane Technology Research Centre,
More informationCNT STABILITY WITHIN POLYMER NANOCOMPOSITE MEMBRANE MATRICES
CNT STABILITY WITHIN POLYMER NANOCOMPOSITE MEMBRANE MATRICES Nov. 3 rd, 2013 Charles-François de Lannoy, Katie Gloe, and Prof. Mark Wiesner Sustainable Material Development and Use Exposure Concern NP
More informationHarris: Quantitative Chemical Analysis, Eight Edition CHAPTER 25: CHROMATOGRAPHIC METHODS AND CAPILLARY ELECTROPHORESIS
Harris: Quantitative Chemical Analysis, Eight Edition CHAPTER 25: CHROMATOGRAPHIC METHODS AND CAPILLARY ELECTROPHORESIS CHAPTER 25: Opener Aa CHAPTER 25: Opener Ab CHAPTER 25: Opener B 25-1 Ion-Exchange
More informationIon Concentration and Electromechanical Actuation Simulations of Ionic Polymer-Metal Composites
October 5-7, 2016, Boston, Massachusetts, USA Ion Concentration and Electromechanical Actuation Simulations of Ionic Polymer-Metal Composites Tyler Stalbaum, Qi Shen, and Kwang J. Kim Active Materials
More informationFacile and Gram-scale Synthesis of Metal-free Catalysts: Toward Realistic Applications for Fuel Cells
Supplementary Information Facile and Gram-scale Synthesis of Metal-free Catalysts: Toward Realistic Applications for Fuel Cells Ok-Hee Kim 1, Yong-Hun Cho 2, Dong Young Chung 3,4, Minjeong Kim 3,4, Ji
More informationSingle-ion BAB triblock copolymers as highly efficient electrolytes for lithium-metal batteries
Single-ion BAB triblock copolymers as highly efficient electrolytes for lithium-metal batteries Supplementary information Polymer characterization. The composition of the A-BCEs has been determined using
More informationSUPPLEMENTARY INFORMATION
doi:10.1038/nature17653 Supplementary Methods Electronic transport mechanism in H-SNO In pristine RNO, pronounced electron-phonon interaction results in polaron formation that dominates the electronic
More informationOxygen reduction and transport characteristics at a platinum and alternative proton conducting membrane interface
Journal of Electroanalytical Chemistry Journal of Electroanalytical Chemistry 568 (24) 273 291 www.elsevier.com/locate/jelechem xygen reduction and transport characteristics at a platinum and alternative
More information3/24/11. Introduction! Electrogenic cell
March 2011 Introduction Electrogenic cell Electrode/electrolyte interface Electrical double layer Half-cell potential Polarization Electrode equivalent circuits Biopotential electrodes Body surface electrodes
More informationImproved Fuel Transport Selectivity in Polymer Electrolyte Membranes. Kyle Tyler Clark. A dissertation submitted in partial satisfaction of the
Improved Fuel Transport Selectivity in Polymer Electrolyte Membranes By Kyle Tyler Clark A dissertation submitted in partial satisfaction of the requirements for the degree of Doctor of Philosophy in Engineering
More informationNITRILE RUBBER (NBR) NANOCOMPOSITES BASED ON DIFFERENT FILLER GEOMETRIES (Nanocalcium carbonate, Carbon nanotube and Nanoclay)
CHAPTER 5 NITRILE RUBBER (NBR) NANOCOMPOSITES BASED ON DIFFERENT FILLER GEOMETRIES (Nanocalcium carbonate, Carbon nanotube and Nanoclay) 5.1 Introduction Nanocalcium carbonate (NCC) is a particulate nanofiller
More informationAggregation States and Proton Conductivity of Nafion in Thin Films
2 nd Oct. 2016 Fluoropolymer 2016 New Orleans, USA Aggregation States and Proton Conductivity of Nafion in Thin Films Department of Applied Chemistry and International Institute for Carbon-neutral Energy
More informationThe effect of acid-base interaction on the thermal and transport properties of poly(etheretherketone) based composite membranes
Korean J. Chem. Eng., 27(5), 1581-1591 (2010) DOI: 10.1007/s11814-010-0244-1 INVITED REVIEW PAPER The effect of acid-base interaction on the thermal and transport properties of poly(etheretherketone) based
More informationNafion/Analcime and Nafion/Faujasite Composite Membranes for High Temperature Operation of PEMFC
Nafion/ and Nafion/ Composite Membranes for High Temperature Operation of PEMFC Paisan Kongkachuichay and Siraprapa Pimprom Abstract The Nafion/zeolite composite membranes were synthesized for polymer
More informationELECTROCHEMICAL CELLS
ELECTROCHEMICAL CELLS Electrochemistry 1. Redox reactions involve the transfer of electrons from one reactant to another 2. Electric current is a flow of electrons in a circuit Many reduction-oxidation
More informationHighly Durable MEA for PEMFC Under High Temperature and Low Humidity Conditions. Eiji Endoh a. Yokohama, JAPAN
10.1149/1.2356118, copyright The Electrochemical Society Highly Durable MEA for PEMFC Under High Temperature and Low Humidity Conditions Eiji Endoh a a Research Center, Asahi Glass Co., Ltd. 1150 Hazawacho,
More information(name) Electrochemical Energy Systems, Spring 2014, M. Z. Bazant. Final Exam
10.626 Electrochemical Energy Systems, Spring 2014, M. Z. Bazant Final Exam Instructions. This is a three-hour closed book exam. You are allowed to have five doublesided pages of personal notes during
More informationPrediction of the Effect of Polymer Membrane Composition in a Dry Air Humidification Process via Neural Network Modeling
Iranian Journal of Chemical Engineering Vol. 13, No. 1 (Winter 2016), IAChE Prediction of the Effect of Polymer Membrane Composition in a Dry Air Humidification Process via Neural Network Modeling M. Fakhroleslam
More informationChapter 7 Electrochemistry
Chapter 7 Electrochemistry Outside class reading Levine: pp. 417 14.4 Galvanic cells: pp. 423 14.5 types of reversible electrodes 7.6.1 Basic concepts of electrochemical apparatus (1) Electrochemical apparatus
More informationControlled actuation of Nafion-based Ionic Polymer-metal Composites (IPMCs) with Ethylene Glycol as Solvent
Controlled actuation of Nafion-based Ionic Polymer-metal Composites (IPMCs) with Ethylene Glycol as Solvent Shahram Zamani and Sia Nemat-Nasser University of California, San Diego Center of Excellence
More informationSupporting Information
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2015 Supporting Information Towards Neat Methanol Operation of Direct Methanol Fuel Cells: A Novel Self-Assembled
More informationEffect of plasticizer on Poly (vinyl alcohol): Poly (vinylidene fluoride) blend polymer electrolyte
International Journal of ChemTech Research CODEN (USA): IJCRGG ISSN : 974-429 Vol.6, No.13, pp 5265-5269, November 214 MESCon 214 [4th -5 th September 214] National Conference on Material for Energy Storage
More informationDevelopment of new PEFC membrane by means of EB grafting
Development of new PEFC membrane by means of EB grafting Masakazu WASHIO*, Fumihiro MUTO, Jingye LI, Takaharu MIURA and Akihiro OSHIMA Advanced Research Institute for Science and Engineering, Waseda University
More informationExperimental Study of Nafion- and Flemion-based Ionic Polymermetal Composites (IPMCs) with Ethylene Glycol as Solvent
Experimental Study of Nafion- and Flemion-based Ionic Polymermetal Composites (IPMCs) with Ethylene Glycol as Solvent Sia Nemat-Nasser and Shahram Zamani University of California, San Diego Center of Excellence
More informationProperties of novel anion selective material with DABCO functional groups for alkaline water electrolysis
Properties of novel anion selective material with DABCO functional groups for alkaline water electrolysis Jaromír Hnát, Jan Žitka, Martin Ďurovič, Martin Paidar, Karel Bouzek Department of Inorganic Technology
More informationExperimental Characterization Methodology for the Identification of Voltage Losses of PEMFC: Applied to an Open Cathode Stack
Experimental Characterization Methodology for the Identification of Voltage Losses of PEMFC: Applied to an Open Cathode Stack A. Husar *, S. Strahl, J. Riera Institut de Robòtica i Informàtica Industrial
More informationNovel Supercapacitor Materials Including OLED emitters
Electronic Supplementary Material (ESI) for New Journal of Chemistry. This journal is The Royal Society of Chemistry and the Centre National de la Recherche Scientifique 2015 Supporting Information Novel
More informationCurriculum Vitae. 200 Xiaolingwei Street, Nanjing , Jiangsu Province, China
Curriculum Vitae Xuan Zhang Ph. D (Environmental Engineering), Associate Professor Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse Nanjing University of Science & Technology 200
More informationModeling as a tool for understanding the MEA. Henrik Ekström Utö Summer School, June 22 nd 2010
Modeling as a tool for understanding the MEA Henrik Ekström Utö Summer School, June 22 nd 2010 COMSOL Multiphysics and Electrochemistry Modeling The software is based on the finite element method A number
More informationIonic Liquids and Ion Gels -A New Class of Liquids and Polymer Gels-
Ionic Liquids and Ion Gels -A New Class of Liquids and Polymer Gels- Masayoshi Watanabe Department of Chemistry & Biotechnology, Yokohama National University, and CREST, JST 79-5 Tokoiwadai, Hodogaya-ku,
More informationA 3-dimensional planar SOFC stack model
A 3-dimensional planar SOFC stack model Michel Bernier, James Ferguson and Raphaèle Herbin 1 Introduction A fuel cell converts chemical energy to electrical energy through electro-chemical reactions at
More informationCapacity fade studies of Lithium Ion cells
Capacity fade studies of Lithium Ion cells by Branko N. Popov, P.Ramadass, Bala S. Haran, Ralph E. White Center for Electrochemical Engineering, Department of Chemical Engineering, University of South
More informationMECHANICAL PROPERTIES OF MATERIALS
1 MECHANICAL PROPERTIES OF MATERIALS Pressure in Solids: Pressure in Liquids: Pressure = force area (P = F A ) 1 Pressure = height density gravity (P = hρg) 2 Deriving Pressure in a Liquid Recall that:
More information1. Demonstrate that the minimum cation-to-anion radius ratio for a coordination number of 8 is
1. Demonstrate that the minimum cation-to-anion radius ratio for a coordination number of 8 is 0.732. This problem asks us to show that the minimum cation-to-anion radius ratio for a coordination number
More informationChemistry PhD Qualifying Exam Paper 1 Syllabus
Chemistry PhD Qualifying Exam Paper 1 Syllabus Preface This document comprises all topics relevant for Paper 1 of the Ph.D. Qualifying Exam in Chemistry at Eastern Mediterranean University, in accordance
More informationUgur Pasaogullari, Chao-Yang Wang Electrochemical Engine Center The Pennsylvania State University University Park, PA, 16802
Computational Fluid Dynamics Modeling of Proton Exchange Membrane Fuel Cells using Fluent Ugur Pasaogullari, Chao-Yang Wang Electrochemical Engine Center The Pennsylvania State University University Park,
More informationMembrane Preparation and Characterization
Membrane Preparation and Characterization Prepare New Polymeric Membranes for Energy Applications A membrane can be considered as a selective barrier that allows transport of some compounds while rejecting
More informationMorphology of Supported Polymer Electrolyte. Ultra-thin Films: a Numerical Study. Supporting Information
Morphology of Supported Polymer Electrolyte Ultra-thin Films: a Numerical Study Supporting Information Daiane Damasceno Borges,, Gerard Gebel, Alejandro A. Franco, Kourosh Malek, and Stefano Mossa, Univ.
More informationConductivity Improvement of Chitosan Membranes through Modification with Lithium for Lithium Polymer Battery Application
Conductivity Improvement of Chitosan embranes through odification with Lithium for Lithium Polymer Battery Application S. N. ASNIN 1, WAHAB 2, DIAN PERANA 3, L. O. AHAD 1 *, S. H. SABARWATI 1, L. O. A.
More informatione - Galvanic Cell 1. Voltage Sources 1.1 Polymer Electrolyte Membrane (PEM) Fuel Cell
Galvanic cells convert different forms of energy (chemical fuel, sunlight, mechanical pressure, etc.) into electrical energy and heat. In this lecture, we are interested in some examples of galvanic cells.
More informationIranian Journal of Hydrogen & Fuel Cell 3(2017) Iranian Journal of Hydrogen & Fuel Cell IJHFC. Journal homepage://ijhfc.irost.
Iranian Journal of Hydrogen & Fuel Cell IJHFC Journal homepage://ijhfc.irost.ir Dynamic investigation of a hydrocarbon proton exchange membrane fuel cell Milad Shakouri Kalfati 1, Aida Karimi 1, Soosan
More informationINFLUENCE OF CLAY ON MECHANICAL PROPERTIES OF POLYVINYL(ALCOHOL)/ MONTMORILLONITE MEMBRANES
INFLUENCE OF CLAY ON MECHANICAL PROPERTIES OF POLYVINYL(ALCOHOL)/ MONTMORILLONITE MEMBRANES Maria C. Carrera 1*, Eleonora Erdmann 1, Hugo A. Destéfanis 1 Marcos L. Dias 2, Victor J. R. R. Pita 2 1 Instituto
More informationJournal of Membrane Science 199 (2002) Xu Tongwen a,, F.F. Zha b. Received 1 February 2001; accepted 27 July 2001
Journal of Membrane Science 199 (2002) 203 210 Fundamental studies on a new series of anion exchange membranes: effect of simultaneous amination-crosslinking processes on membranes ion-exchange capacity
More informationNafion-layered sulfonated polysulfone fuel cell membranes
Journal of Power Sources 152 (2005) 27 33 Nafion-layered sulfonated polysulfone fuel cell membranes Sheng-Li Chen a,, A.B. Bocarsly b, J. Benziger c, a China National Key Lab of Heavy Oil Processing and
More informationTHE FULLY PLASTIC ACTUATORS BASED ON CNT/PVDF-CTFE COMPOSITES WITH CORRUGATED SURFACES
THE FULLY PLASTIC ACTUATORS BASED ON CNT/PVDF-CTFE COMPOSITES WITH CORRUGATED SURFACES Jun-Hong Lin Department of Mold and Die Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung,
More informationChem 321 Lecture 17 - Potentiometry 10/24/13
Student Learning Objectives Chem 321 Lecture 17 - Potentiometry 10/24/13 Electrodes The cell described in the potentiometric chloride titration (see 10/22/13 posting) consists of a Ag/AgCl reference electrode
More informationIranian Journal of Hydrogen & Fuel Cell 2(2014) Iranian Journal of Hydrogen & Fuel Cell IJHFC. Journal homepage://ijhfc.irost.
DOI: http://dx.doi.org/10.22104/ijhfc.2014.52 Iranian Journal of Hydrogen & Fuel Cell IJHFC Journal homepage://ijhfc.irost.ir Novel PVA/ hybrid nanocomposite membranes for application in proton exchange
More informationFoundations in Microbiology Seventh Edition
Lecture PowerPoint to accompany Foundations in Microbiology Seventh Edition Talaro Chapter 2 The Chemistry of Biology Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
More informationMetal hydride nafion composite electrode with dual proton and electron conductivity
International Journal of Smart Grid and Clean Energy Metal hydride nafion composite electrode with dual proton and electron conductivity Amandeep Singh Oberoi *, John Andrews a School of Aerospace, Mechanical
More informationStyrene-Divinylbenzene Copolymers. 11. The Conservation of Porosity in Styrene-Divinylbenzene Copolymer Matrices and Derived Ion-Exchange Resins
JOURNAL OF APPLIED POLYMER SCIENCE VOL. 19, 2647-2654 (1975) Styrene-Divinylbenzene Copolymers. 11. The Conservation of Porosity in Styrene-Divinylbenzene Copolymer Matrices and Derived Ion-Exchange Resins
More informationIntroduction to Engineering Materials ENGR2000. Dr. Coates
Introduction to Engineering Materials ENGR2 Chapter 6: Mechanical Properties of Metals Dr. Coates 6.2 Concepts of Stress and Strain tension compression shear torsion Tension Tests The specimen is deformed
More informationSTANDARD SAMPLE. Reduced section " Diameter. Diameter. 2" Gauge length. Radius
MATERIAL PROPERTIES TENSILE MEASUREMENT F l l 0 A 0 F STANDARD SAMPLE Reduced section 2 " 1 4 0.505" Diameter 3 4 " Diameter 2" Gauge length 3 8 " Radius TYPICAL APPARATUS Load cell Extensometer Specimen
More informationWir schaffen Wissen heute für morgen
Wir schaffen Wissen heute für morgen Paul Scherrer Institut L. Gubler, A. Albert, Y. Buchmüller, O. Nibel, L. Bonorand Radiation Grafting: Tailored Ion-conducting Membranes for Electrochemical Applications
More informationModified Nafion Membranes for Hydrogen Production in Cu-Cl Thermochemical Cycle. Naser Abdo. Naser Abdo, 2015
Modified Nafion Membranes for Hydrogen Production in Cu-Cl Thermochemical Cycle By Naser Abdo A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE in THE FACULTY
More informationAdsorption at the solid/liquid interface
1. Ion exchanger Adsorption at the solid/liquid interface Ion exchange process means an exchange of ions between an electrolyte solution and a solid (ionite). In most cases the term is used to denote the
More informationIntroduction Fuel Cells Repetition
Introduction Fuel Cells Repetition Fuel cell applications PEMFC PowerCell AB, (S1-S3) PEMFC,1-100 kw Toyota Mirai a Fuel Cell Car A look inside The hydrogen tank 1. Inside Layer of polymer closest to the
More informationUNIVERSITY of ROME "TOR VERGATA"
UNIVERSITY of ROME "TOR VERGATA" Faculty of Engineering Ph. D. in MATERIALS FOR ENVIRONMENT AND ENERGY (XXI Cycle) Hybrid Polymer Electrolytes for Proton Exchange Membrane Fuel Cells: Synthesis and Applications
More informationPart II: Self Potential Method and Induced Polarization (IP)
Part II: Self Potential Method and Induced Polarization (IP) Self-potential method (passive) Self-potential mechanism Measurement of self potentials and interpretation Induced polarization method (active)
More informationNovel Dispersion and Self-Assembly
Novel Dispersion and Self-Assembly of Carbon Nanotubes Mohammad F. Islam 100g Department of Chemical Engineering and Department of Materials Science & Engineering Funding Agencies http://islamgroup.cheme.cmu.edu
More informationFACTORS INFLUENCING ELECTROCHEMICAL PROPERTIES AND PERFORMANCE OF HYDROCARBON BASED IONOMER PEMFC CATALYST LAYERS
FACTORS INFLUENCING ELECTROCHEMICAL PROPERTIES AND PERFORMANCE OF HYDROCARBON BASED IONOMER PEMFC CATALYST LAYERS by Toby Duncan Astill B.Sc. (Hons), University of Victoria, 2003 THESIS SUBMITTED IN PARTIAL
More informationUnit 2 Electrochemical methods of Analysis
Unit 2 Electrochemical methods of Analysis Recall from Freshman Chemistry: Oxidation: Loss of electrons or increase in the oxidation number Fe 2 e - Fe 3 Reduction: Gain of electrons or decreases in the
More informationSupplementary Information Improvement in LiFePO 4 /Li battery Performance via Poly(perfluoroalkylsulfonyl)imide (PFSI) Based Ionene Composite Binder
Supplementary Information Improvement in LiFePO 4 /Li battery Performance via Poly(perfluoroalkylsulfonyl)imide (PFSI) Based Ionene Composite Binder Qianru Shi a, LixinXue a *,ZengbinWei a, Fu Liu a, XudongDu
More informationProton transport properties at high temperature of modified sulfonated polyether-ether ketone membrane for direct methanol fuel cells application
ISBN 978-979-18962--7 Proton transport properties at high temperature of modified sulfonated polyether-ether ketone membrane for direct methanol fuel cells application Sri Handayani 1, Eniya Listiani Dewi
More informationFunctionalization of reduced graphene oxides by redox-active ionic liquids for energy storage
Supplementary Material (ESI) for Chemical Communications Functionalization of reduced graphene oxides by redox-active ionic liquids for energy storage Sung Dae Cho, a Jin Kyu Im, b Han-Ki Kim, c Hoon Sik
More informationDegradation of anion exchange membranes used for hydrogen production by ultrapure water electrolysis
This journal is The Royal Society of Chemistry 04 Degradation of anion exchange membranes used for hydrogen production by ultrapure water electrolysis Electronic Supplementary Information Javier Parrondo
More informationEffect of Relative Humidity and Temperature on the Mechanical Properties of PFSA Nafion -cation-exchanged membranes for Electrochemical Applications
Int. J. Electrochem. Sci., 12 (2017) 2573 2582, doi: 10.20964/2017.03.57 International Journal of ELECTROCHEMICAL SCIENCE www.electrochemsci.org Effect of Relative Humidity and Temperature on the Mechanical
More informationLayered Titanates Intercalating Organic Guest Spacers for Organic/Inorganic Proton Conductors
10.1149/1.3635739 The Electrochemical Society Layered Titanates Intercalating Organic Guest Spacers for Organic/Inorganic Proton Conductors C. de Bonis a, A. D Epifanio a, B. Mecheri a, E. Traversa a,b,
More informationANALYSIS OF DIELECTRIC, MODULUS, ELECTRO CHEMICAL STABILITY OF PVP ABSA POLYMER ELECTROLYTE SYSTEMS
Int. J. Chem. Sci.: 14(1), 216, 477-481 ISSN 972-768X www.sadgurupublications.com ANALYSIS OF DIELECTRIC, MODULUS, ELECTRO CHEMICAL STABILITY OF PVP ABSA POLYMER ELECTROLYTE SYSTEMS R. S. DIANA SANGEETHA
More informationDepartment of Chemical Sciences, Faculty of Science, Edwin Clark University, Kiagbodo, Nigeria
International Journal of Materials Science and Applications 2018; 7(1): 6-12 http://www.sciencepublishinggroup.com/j/ijmsa doi: 10.11648/j.ijmsa.20180701.12 ISSN: 2327-2635 (Print); ISSN: 2327-2643 (Online)
More information