Supporting Information. Bulk Hydroxylation and Effective Water Splitting by Highly Reduced Cerium Oxide: The Role of O Vacancy Coordination
|
|
- Shavonne Small
- 5 years ago
- Views:
Transcription
1 Supporting Information Bulk Hydroxylation and Effective Water Splitting by Highly Reduced Cerium Oxide: The Role of O Vacancy Coordination Filip Dvořák 1,a), Lucie Szabová 2), Viktor Johánek 1), Matteo Farnesi Camellone 3), Vitalii Stetsovych 1,b), Mykhailo Vorokhta 1), Andrii Tovt 1), Tomáš Skála 1), Iva Matolínová 1), Yoshitaka Tateyama 2), Josef Mysliveček 1,*), Stefano Fabris 3,*), Vladimír Matolín 1) 1) Charles University, Faculty of Mathematics and Physics, V Holešovičkách 2, 18 Prague 8, Czech Republic 2) Center for Green Research on Energy and Environmental Materials (GREEN), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 35-44, Japan 3) CNR-IOM DEMOCRITOS, Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, Via Bonomea 265, Trieste, Italy *josef.myslivecek@mff.cuni.cz, *fabris@iom.cnr.it a) Present address: University of Pardubice, Faculty of Chemical Technology, Nám. Čs. Legií 565, 532 Pardubice, Czech Republic b) Present address: Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, Prague 8, Czech Republic
2 Table S1: Parameters of the samples from Figure 1. Near-surface stoichiometry and Nearsurface oxygen vacancy (Ov) concentration refer to idealized bulk-terminated structures shown schematically in Figure 1 and identified experimentally based on the corresponding LEED pattern. 1 Experimental CeOx layer thickness has been determined from the attenuation of an XPS Cu 2p3/2 signal from the Cu(111) substrate by the CeOx layer. Experimental stoichiometry refers to the stoichiometry of the samples determined from the analysis of the XPS Ce 3d peak 2 yielding the stoichiometry averaged over the information depth of XPS. 1 Generally, the samples exhibit vertical gradient of the Ov concentration with Ov accumulating in the near-surface region. 1 Nearsurface Ov accumulation represents a lower estimate of the thickness of the near-surface Ov accumulation region. Near-surface Ov accumulation is calculated from a two-slab model of an ideal reduced slab (Ce7O12, CeO1.67, or Ce2O3) supported on a CeO2 slab so as to yield the experimentally determined XPS stoichiometry of the samples. 1 ML refers to a monolayer of CeO2(111), equivalent to.31 nm. Near-surface stoichiometry Near-surface Ov concentration (w.r.t. CeO2, %) Exp. LEED pattern Exp. layer thickness (ML) Exp. stoichiometry (XPS) CeOx Near-surface Ov accumulation (ML) CeO CeO CeO CeO
3 Figure S1: STM image of the coexistence of the c-ce2o3 (4 4) and CeO1.67 (3 3) phases on the oxidized c-ce2o3 sample. 4 4 nm 2. LEED of this sample showed a dominating 3 3 superstructure. Table S2 (next page): Equilibrium lattice parameter (a) and relative distance between Ce 3+ ions and O vacancies or OH groups [d(ce 3+ -Ov) and d(ce 3+ -OH)] in the set of supercells used to model the considered CeOx systems. E is the calculated energy difference between different Ce 3+ and Ov configurations that were sampled within the same stoichiometries.
4 a [Å] d(ce 3+ -O v) / d(ce 3+ -OH) E [ev] CeO Ce1 NNN(O v) Ce2 NNN (O v) Ce1 NN (O v) Ce2 NN (O v) +.15 CeO H 2O 11.6 Ce1 NN(O v) & NN(OH) Ce2 NN (O v) & NN(OH) Ce1 NNN(O v) & NNN(OH) Ce2 NNN (OH) & NNN(OH) +.12 Ce1 NN(O v 1) & NNNN(O v 2) Ce2 NNN(O v 1) & NN(O v 2) Ce3 NN(O v 1) & NNN(O v 2) Ce4 NNN(O v 1) & NN(O v 2) CeO Ce1 NNN(O v 1) & NNNN(O v 2) Ce2 NNN(O v 1) & NNNNN(O v 2) Ce3 NNNNN(O v 1) & NNN(O v 2) +.28 Ce4 NNNN(O v 1) & NNN(O v 2) Ce1 NNN(O v 1) & NN(OH) & NN(OH) CeO H 2O 11.6 Ce2 NN(O v 1) & NN(OH) & NN(OH) Ce3 NN(O v 1) & NN(OH) & NNN(OH) Ce4 NN(O v 1) & NNN(OH) & NNNN(OH) Ce1 NN(O v 1) & NN(O v 2) Ce2 NNNN(O v 1) & NN(O v 2) Ce3 NNN(O v 1) & NN(O v 2) +.4 Ce4 NN(O v 1) & NNN(O v 2) Ce1 NNNN(O v 1) & NN(O v 2) CeO 1.75(NNN) 4.6 Ce2 NNN(O v 1) & NN(O v 2) Ce3 NNN(O v 1) & NN(O v 2) +.22 Ce4 NN(O v 1) & NNN(O v 2) Ce1 NNNN(O v 1) & NN (O v 2) Ce2 NNN(O v 1) & NNN(O v 2) Ce3 NN(O v 1) & NNN(O v 2) Ce4 NN(O v 1) & NNN(O v 2) Ce1 NN(O v 1) & NN (OH) Ce2 NNNN(O v 1) & NN(OH) +.3 CeO 1.75(NNN)+H 2O 4.1 Ce3 NNN(O v 1) & NN(OH) Ce4 NN(O v 1) & NNN(OH) Ce1 NNNN(O v 1) & NN (OH) Ce2 NNN(O v 1) & NN(OH) Ce3 NNN(O v 1) & NN(OH) Ce4 NN(O v 1) & NNN(OH) Ce 3O 5 Hexagonal First layer: 12 reduced Ce a = Second layer: 8 reduced Ce c = 9.51 Third layer: 4 reduced Ce c-ce 2O
5 Figure S2: (a) TPD of H2O from c-ce2o3. Data from Figure 1 in the main text. (b) Evolution of the stoichiometry of the Ce2O3 sample upon water exposure at 11 K (marked with arrow) and subsequent heating to increasingly higher temperatures. The strongest oxidation of the sample can be associated with desorption of H2 above 5 K. Upon water exposure at low temperature, the change of the sample stoichiometry is comparably smaller. Figure S3: Dependency of T* on the partial pressure of H2O (left) and H2 (right) for the water dissociation and H2 evolution reactions. We define T* as the T at which the reaction G is, while G< for T<T*.
6 Figure S4: Examples of experimental data and evaluation of experimental values. The experimental data (black lines) are belonging to samples marked,, in Figure 2c. (a) Determination of sample stoichiometry. XPS Ce 3d signal excited by Al Kα radiation is measured at normal emission. The resulting intensities are fitted according to the procedure developed by Skála et al. 2 for Ce 4+ and Ce 3+ contributions [light green and dark green lines in (a), the resulting fit plotted in red] and the weight of the Ce 4+ and Ce 3+ contributions is converted to sample stoichiometry CeOx. The obtained stoichiometry CeOx represents an average over the information depth of the XPS Ce 3d signal. (b), (c) Determination of the TPD yield of H2O (b) and H2 (c) from the recombination peak. TPD signal was obtained using a quadrupole mass spectrometer (QMS, Pfeiffer PrismaPlus) placed behind a differentially pumped nozzle in order to suppress background signal in TPD spectra. H2O exposure took place at sample temperature 1 K and the temperature ramp during TPD was set precisely at 2 K/s rate. The raw current output of the QMS has been calibrated to molecular fluxes for several reference pure gases - either directly by combining known surface coverage [using a Pt(111) single crystal as a reference] with calculated time integral of the TPD signal, or indirectly by using relative ionization probabilities for two species for deriving new sensitivity factors from the established ones. TPD yields (red hatched areas) were obtained by integrating the QMS output between 36 and 67 K [H2 TPD, (b)], or between 36 K and 64 K [H2O TPD (c)], always after subtraction of corresponding QMS background (green lines). (d) Determination of OH concentration on the samples. SRPES O 1s signal excited by 64 ev synchrotron radiation was measured at normal emission. The resulting intensities are fitted for OH and CeOx lattice O contributions 3,4 [light green and dark green lines in (d), the resulting fit plotted in red], and the area belonging to the OH peak evaluated.
7 Appendix 1: Attenuation of bulk OH signal in SRPES To estimate the expected intensity of SRPES OH signal on the samples presented in Figure 2d we make following (extreme) assumptions regarding the distribution of OH species on the surface and in the bulk of the samples: On the ι-ce7o12 and CeO1.67 samples (denoted, in Figures 2c,e) exhibiting slow oxidation by water during TPD experiments, all OH species are assumed to reside on the surface of the samples. Upon 1 st TPD of water (Figures 2a, b), these samples produce cm -2 H2 molecules and cm -2 H2O molecules by recombination of surface OH at approx. 5 K. This requires a surface concentration of OH groups of cm -2. Performing SRPES measurement of the OH peak on these samples at 3 K (as in Figure 2d) the expected intensity of the surface OH SRPES signal will be IOH S = cm -2 SRPES sensitivity. [1] On the c-ce2o3 sample (denoted in Figures 2c, e), on the other hand, the effective oxidation during first TPD indicates a bulk OH reaction. We assume a homogeneous distribution of OH in the bulk and quantify the bulk OH density at temperatures below the H2 desorption temperature from the H2 production upon first TPD ( H2 molecules cm -2, see Figure 2a) and from the thickness of the c-ce2o3 sample (12.3 monolayer or 3.8 nm, see Table S1) as cm -3 of bulk OH. The expected intensity of the bulk SRPES OH signal will be obtained using the bulk concentration of OH groups in the sample and the mean free path of the O1s photoelectron mediating the SRPES measurement. According to the TPP-2 formula, 5 the mean free path is 4.8 Å for the photoelectron of 11 ev kinetic energy in c-ce2o3, and the resulting intensity IOH B = cm cm SRPES sensitivity = = cm -2 SRPES sensitivity, [2] is lower than the expected signal from the surface OH on the ι-ce7o12 and CeO1.67 samples (IOH S, Eq. 1). Our estimate of the intensity of the OH peak as measured by SRPES on the c-ce2o3, ι- Ce7O12 and CeO1.67 samples is in qualitative agreement with the experimental results presented in Figure 2.
8 References: (1) Duchoň, T.; Dvořák, F.; Aulická, M.; Stetsovych, V.; Vorokhta, M.; Mazur, D.; Veltruská, K.; Skála, T.; Mysliveček, J.; Matolínová, I.; et al. Ordered Phases of Reduced Ceria As Epitaxial Films on Cu(111). J. Phys. Chem. C 214, 118, (2) Skála, T.; Šutara, F.; Prince, K. C.; Matolín, V. Cerium Oxide Stoichiometry Alteration via Sn Deposition: Influence of Temperature. J. Electron Spectros. Relat. Phenomena 29, 169, (3) Mullins, D. R.; Albrecht, P. M.; Chen, T.-L.; Calaza, F. C.; Biegalski, M. D.; Christen, H. M.; Overbury, S. H. Water Dissociation on CeO2(1) and CeO2(111) Thin Films. J. Phys. Chem. C 212, 116, (4) Matolín, V.; Matolínová, I.; Dvořák, F.; Johánek, V.; Mysliveček, J.; Prince, K. C.; Skála, T.; Stetsovych, O.; Tsud, N.; Václavů, M.; et al. Water Interaction with CeO2(111)/Cu(111) Model Catalyst Surface. Catal. Today 212, 181, (5) Tanuma, S.; Powell, C. J.; Penn, D. R. Calculations of Electron Inelastic Mean Free Paths (IMFPS). IV. Evaluation of Calculated IMFPs and of the Predictive IMFP Formula TPP-2 for Electron Energies between 5 and 2 ev. Surf. Interface Anal. 1993, 2,
TPD-MS. Photocatalytic Studies Using Temperature Programmed Desorption Mass Spectrometry (TPD-MS) APPLICATION NOTE NOTE
TPD-MS APPLICATION NOTE NOTE Photocatalytic Studies Using Temperature Programmed Desorption Mass Spectrometry (TPD-MS) Thermal analysis consists of many techniques for the exploration of the physical properties
More informationTenure-track researcher (Ricercatore III livello) DEMOCRITOS Simulation Center. Post doctoral research fellow DEMOCRITOS Simulation Center
E UROPEAN CURRICULUM VITAE FORMAT PERSONAL INFORMATION Name STEFANO FABRIS Address VICOLO DELL OSPITALE MILITARE 4, 34127 TRIESTE, ITALY Telephone +39 040 3758 6478 Fax E-mail fabris@iom.cnr.it Nationality
More informationWater clustering on nanostructured iron oxide films
ARTICLE Received 12 May 2013 Accepted 22 May 2014 Published 30 Jun 2014 Water clustering on nanostructured iron oxide films Lindsay R. Merte1,2, Ralf Bechstein1, W. Guowen Peng3, Felix Rieboldt1, Carrie
More informationFunctional Group Adsorption on Calcite: I. Oxygen Containing and Nonpolar Organic Molecules
SUPPORTING INFORMATION Functional Group Adsorption on Calcite: I. Oxygen Containing and Nonpolar Organic Molecules E. Ataman*, M. P. Andersson, M. Ceccato, N. Bovet, S. L. S. Stipp Nano-Science Center,
More informationTable 1: Residence time (τ) in seconds for adsorbed molecules
1 Surfaces We got our first hint of the importance of surface processes in the mass spectrum of a high vacuum environment. The spectrum was dominated by water and carbon monoxide, species that represent
More informationIdentifying and Visualizing the Edge Terminations of Single-Layer MoSe2 Island Epitaxially Grown on Au(111)
Supporting Information Identifying and Visualizing the Edge Terminations of Single-Layer MoSe2 Island Epitaxially Grown on Au(111) Jianchen Lu, De-Liang Bao, Kai Qian, Shuai Zhang, Hui Chen, Xiao Lin*,
More informationAcidic Water Monolayer on Ruthenium(0001)
Acidic Water Monolayer on Ruthenium(0001) Youngsoon Kim, Eui-seong Moon, Sunghwan Shin, and Heon Kang Department of Chemistry, Seoul National University, 1 Gwanak-ro, Seoul 151-747, Republic of Korea.
More informationIV. Surface analysis for chemical state, chemical composition
IV. Surface analysis for chemical state, chemical composition Probe beam Detect XPS Photon (X-ray) Photoelectron(core level electron) UPS Photon (UV) Photoelectron(valence level electron) AES electron
More informationEnergy Spectroscopy. Excitation by means of a probe
Energy Spectroscopy Excitation by means of a probe Energy spectral analysis of the in coming particles -> XAS or Energy spectral analysis of the out coming particles Different probes are possible: Auger
More informationIntroduction to X-ray Photoelectron Spectroscopy (XPS) XPS which makes use of the photoelectric effect, was developed in the mid-1960
Introduction to X-ray Photoelectron Spectroscopy (XPS) X-ray Photoelectron Spectroscopy (XPS), also known as Electron Spectroscopy for Chemical Analysis (ESCA) is a widely used technique to investigate
More informationLow pressure CO 2 hydrogenation to methanol over gold nanoparticles activated on a CeO x /TiO 2 interface
Low pressure CO 2 hydrogenation to methanol over gold nanoparticles activated on a CeO x /TiO 2 interface 1 Xiaofang Yang, 1 Shyam Kattel, 1 Sanjaya D. Senanayake, 2 J. Anibal Boscoboinik, 3 Xiaowa Nie,
More informationSpectro-microscopic photoemission evidence of surface dissociation and charge uncompensated areas in Pb(Zr,Ti)O 3 (001) layers
Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics. This journal is the Owner Societies 2014 Electronic Supplementary Information - Phys. Chem. Chem. Phys. Spectro-microscopic
More informationName: (a) What core levels are responsible for the three photoelectron peaks in Fig. 1?
Physics 243A--Surface Physics of Materials: Spectroscopy Final Examination December 16, 2014 (3 problems, 100 points total, open book, open notes and handouts) Name: [1] (50 points), including Figures
More informationLocalized 4f Electrons in Ceria: Interplay. between DFT and Experiment
Localized 4f Electrons in Ceria: Interplay between DFT and Experiment Tomáš Duchoň Faculty of Mathematics and Physics, Charles University in Prague, V Holešovičkách 2, 18000 Praha 0, Czech Republic E-mail:
More informationEnergy Spectroscopy. Ex.: Fe/MgO
Energy Spectroscopy Spectroscopy gives access to the electronic properties (and thus chemistry, magnetism,..) of the investigated system with thickness dependence Ex.: Fe/MgO Fe O Mg Control of the oxidation
More informationEstimation of IMFP except for a constant factor using only XPS background-optimized peak intensities and cross sections
Paper Estimation of IMFP except for a constant factor using only XPS background-optimized peak intensities Masatoshi Jo,* National Metrology Institute of Japan, AIST AIST Tsukuba Central 5, 1-1-1 Higashi,
More informationSupporting Information
Supporting Information Yao et al. 10.1073/pnas.1416368111 Fig. S1. In situ LEEM imaging of graphene growth via chemical vapor deposition (CVD) on Pt(111). The growth of graphene on Pt(111) via a CVD process
More informationElectronic Supplementary Information
Electronic Supplementary Material (ESI) for Chemical Science. This journal is The Royal Society of Chemistry 218 Rel. intensity Rel. intensity Electronic Supplementary Information Under-cover stabilization
More informationPhotoelectron Peak Intensities in Solids
Photoelectron Peak Intensities in Solids Electronic structure of solids Photoelectron emission through solid Inelastic scattering Other excitations Intrinsic and extrinsic Shake-up, shake-down and shake-off
More informationSize-selected Metal Cluster Deposition on Oxide Surfaces: Impact Dynamics and Supported Cluster Chemistry
Size-selected Metal Cluster Deposition on Oxide Surfaces: Impact Dynamics and Supported Cluster Chemistry Sungsik Lee, Masato Aizawa, Chaoyang Fan, Tianpin Wu, and Scott L. Anderson Support: AFOSR, DOE
More informationEvidence for partial dissociation of water on flat MgO(1 0 0) surfaces
6 February 2002 Chemical Physics Letters 352 (2002) 318 322 www.elsevier.com/locate/cplett Evidence for partial dissociation of water on flat MgO(1 0 0) surfaces Y.D. Kim a, R.M. Lynden-Bell b, *, A. Alavi
More informationa b c Supplementary Figure S1
a b c Supplementary Figure S1 AFM measurements of MoS 2 nanosheets prepared from the electrochemical Liintercalation and exfoliation. (a) AFM measurement of a typical MoS 2 nanosheet, deposited on Si/SiO
More informationCOST Redox WG3 Meeting 2014
COST Redox WG3 Meeting 014 nd Workshop of Workgroup 3 (Reactivity) CMST COST Action CM1104 Reducible oxide chemistry, structure and functions May 8-9, 014 Prague, Czech Republic Meeting Programme organized
More informationThe Low Temperature Conversion of Methane to Methanol on CeO x /Cu 2 O catalysts: Water Controlled Activation of the C H Bond
The Low Temperature Conversion of Methane to Methanol on CeO x /Cu 2 O catalysts: Water Controlled Activation of the C H Bond Zhijun Zuo, a Pedro J. Ramírez, b Sanjaya Senanayake, a Ping Liu c,* and José
More informationHydrogen Storage in Metalfunctionalized
Hydrogen Storage in Metalfunctionalized Graphene Stefan Heun NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore Pisa, Italy Outline Introduction to Hydrogen Storage Epitaxial Graphene Hydrogen
More informationPhoton Interaction. Spectroscopy
Photon Interaction Incident photon interacts with electrons Core and Valence Cross Sections Photon is Adsorbed Elastic Scattered Inelastic Scattered Electron is Emitted Excitated Dexcitated Stöhr, NEXAPS
More informationSUPPLEMENTARY INFORMATION
In the format provided by the authors and unedited. Intrinsically patterned two-dimensional materials for selective adsorption of molecules and nanoclusters X. Lin 1,, J. C. Lu 1,, Y. Shao 1,, Y. Y. Zhang
More informationImpact of catalyst support on the activity of the oxygen evolution catalyst in PEM water electrolysis
Impact of catalyst support on the activity of the oxygen evolution catalyst in PEM water electrolysis Karel Bouzek, Jakub Polonský, Tomáš Bystroň University of Chemistry and Technology Prague; Technická
More informationTed Madey s Scientific Career at NBS/NIST: Aspects of Auger Electron Spectroscopy (AES), X-ray Photoelectron Spectroscopy (XPS), and Vacuum Science
Ted Madey s Scientific Career at NBS/NIST: Aspects of Auger Electron Spectroscopy (AES), X-ray Photoelectron Spectroscopy (XPS), and Vacuum Science Cedric J. Powell 1. Ted s 25-year career at NBS/NIST:
More informationSynthesis and Substitution Chemistry of Redox-Active
Supporting Information Synthesis and Substitution Chemistry of Redox-Active Manganese/Cobalt Oxide Nanosheets Nobuyuki Sakai, Katsutoshi Fukuda, Renzhi Ma, and Takayoshi Sasaki *, International Center
More informationLow-dimensional NbO structures on the Nb(110) surface: scanning tunneling microscopy, electron spectroscopy and diffraction
Low-dimensional NbO structures on the Nb(110) surface: scanning tunneling microscopy, electron spectroscopy and diffraction A.S. Razinkin, E.V. Shalaeva and M.V. Kuznetsov Institute of Solid State Chemistry,
More informationSUPPLEMENTARY INFORMATION
DOI: 10.1038/NCHEM.2491 Experimental Realization of Two-dimensional Boron Sheets Baojie Feng 1, Jin Zhang 1, Qing Zhong 1, Wenbin Li 1, Shuai Li 1, Hui Li 1, Peng Cheng 1, Sheng Meng 1,2, Lan Chen 1 and
More informationEvidence for structure sensitivity in the high pressure CO NO reaction over Pd(111) and Pd(100)
Evidence for structure sensitivity in the high pressure CO NO reaction over Pd(111) and Pd(100) Scott M. Vesecky, Peijun Chen, Xueping Xu, and D. Wayne Goodman a) Department of Chemistry, Texas A&M University,
More informationLecture 5. X-ray Photoemission Spectroscopy (XPS)
Lecture 5 X-ray Photoemission Spectroscopy (XPS) 5. Photoemission Spectroscopy (XPS) 5. Principles 5.2 Interpretation 5.3 Instrumentation 5.4 XPS vs UV Photoelectron Spectroscopy (UPS) 5.5 Auger Electron
More informationEffect of Electric Field on Condensed-Phase Molecular Systems. II. Stark Effect on the Hydroxyl Stretch Vibration of Ice
Effect of Electric Field on Condensed-Phase Molecular Systems. II. Stark Effect on the Hydroxyl Stretch Vibration of Ice Sunghwan Shin, Hani Kang, Daeheum Cho, Jin Yong Lee, *, and Heon Kang *, Department
More information7. Oxidation of gold by oxygen-ion sputtering
7. Oxidation of gold by oxygen-ion sputtering Up to now, relatively little attention has been paid to oxygen phases obtained by sputtering of gold surfaces with oxygen ions. Nevertheless, the high oxygen
More informationHighly doped and exposed Cu(I)-N active sites within graphene towards. efficient oxygen reduction for zinc-air battery
Electronic Supplementary Material (ESI) for Energy & Environmental Science. This journal is The Royal Society of Chemistry 2016 Electronic Supplementary Information (ESI) for Energy & Environmental Science.
More informationChemical Reactions Induced by Ionizing and Electron-beam Irradiation in Freon/Water (Ice) Films
Chemical Reactions Induced by Ionizing and Electron-beam Irradiation in Freon/Water (Ice) Films Johns Hopkins University (founded in 1876) Dr. C.C. Perry Prof. D.H. Fairborther School of Arts & Sciences
More informationReduced preferential sputtering of TiO 2 (and Ta 2 O 5 ) thin films through argon cluster ion bombardment.
NATIOMEM Reduced preferential sputtering of TiO 2 (and Ta 2 O 5 ) thin films through argon cluster ion bombardment. R. Grilli *, P. Mack, M.A. Baker * * University of Surrey, UK ThermoFisher Scientific
More informationNIST Database for the Simulation of Electron Spectra For Surface Analysis (SESSA)*
NIST Database for the Simulation of Electron Spectra For Surface Analysis (SESSA)* 1. What is it? 2. What can it do? 3. Summary Cedric Powell National Institute of Standards and Technology, Gaithersburg
More informationMater. Res. Soc. Symp. Proc. Vol Materials Research Society
Mater. Res. Soc. Symp. Proc. Vol. 1217 2010 Materials Research Society 1217-Y08-43 Surface Structure of Pd 3 Fe(111) and Effects of Oxygen Adsorption Xiaofang Yang, Lindsey A. Welch, Jie Fu and Bruce E.
More informationSurface Chemistry and Reaction Dynamics of Electron Beam Induced Deposition Processes
Surface Chemistry and Reaction Dynamics of Electron Beam Induced Deposition Processes e -? 2 nd FEBIP Workshop Thun, Switzerland 2008 Howard Fairbrother Johns Hopkins University Baltimore, MD, USA Outline
More informationSupplementary Figure 1 Result from XRD measurements. Synchrotron radiation XRD patterns of the as-prepared gold-ceria samples.
Supplementary Figure 1 Result from XRD measurements. Synchrotron radiation XRD patterns of the as-prepared gold-ceria samples. The detailed information on XRD measurement is seen in the Supplementary Methods.
More informationThin and Ultrathin Plasma Polymer Films and Their Characterization
WDS'13 Proceedings of Contributed Papers, Part III, 134 138, 2013. ISBN 978-80-7378-252-8 MATFYZPRESS Thin and Ultrathin Plasma Polymer Films and Their Characterization M. Petr, O. Kylián, J. Hanuš, A.
More informationSurface compositional gradients of InAs/GaAs quantum dots
Surface compositional gradients of InAs/GaAs quantum dots S. Heun, G. Biasiol, V. Grillo, E. Carlino, and L. Sorba Laboratorio Nazionale TASC INFM-CNR, I-34012 Trieste, Italy G. B. Golinelli University
More informationMicroscopical and Microanalytical Methods (NANO3)
Microscopical and Microanalytical Methods (NANO3) 06.11.15 10:15-12:00 Introduction - SPM methods 13.11.15 10:15-12:00 STM 20.11.15 10:15-12:00 STS Erik Zupanič erik.zupanic@ijs.si stm.ijs.si 27.11.15
More informationUltra-High Vacuum Synthesis of Strain-Controlled Model. Pt(111)-Shell Layers: Surface Strain and Oxygen Reduction
Supporting Information Ultra-High Vacuum Synthesis of Strain-Controlled Model Pt(111)-Shell Layers: Surface Strain and Oxygen Reduction Reaction Activity Soma Kaneko 1, Rikiya Myochi 1, Shuntaro Takahashi
More informationX-ray Photoelectron Spectroscopy (XPS)
X-ray Photoelectron Spectroscopy (XPS) As part of the course Characterization of Catalysts and Surfaces Prof. Dr. Markus Ammann Paul Scherrer Institut markus.ammann@psi.ch Resource for further reading:
More informationLocal Anodic Oxidation with AFM: A Nanometer-Scale Spectroscopic Study with Photoemission Microscopy
Local Anodic Oxidation with AFM: A Nanometer-Scale Spectroscopic Study with Photoemission Microscopy S. Heun, G. Mori, M. Lazzarino, D. Ercolani,* G. Biasiol, and L. Sorba* Laboratorio Nazionale TASC-INFM,
More informationX-Ray Photoelectron Spectroscopy (XPS)-2
X-Ray Photoelectron Spectroscopy (XPS)-2 Louis Scudiero http://www.wsu.edu/~scudiero; 5-2669 Fulmer 261A Electron Spectroscopy for Chemical Analysis (ESCA) The 3 step model: 1.Optical excitation 2.Transport
More informationEffects of Electron Backscattering in Auger Electron Spectroscopy: Recent Developments
Journal of Surface Analysis Vol.15, No. 2 (28) pp. 139 149 Review Effects of Electron Backscattering in Auger Electron Spectroscopy: Recent Developments A. Jablonski a,* and C. J. Powell b a Institute
More informationSupporting Information
Temperature Effect on Transport, Charging and Binding of Low-Energy Electrons Interacting with Amorphous Solid Water Films Roey Sagi, Michelle Akerman, Sujith Ramakrishnan and Micha Asscher * Institute
More information1 Adsorption of NO 2 on Pd(100) Juan M. Lorenzi, Sebastian Matera, and Karsten Reuter,
Supporting information: Synergistic inhibition of oxide formation in oxidation catalysis: A first-principles kinetic Monte Carlo study of NO+CO oxidation at Pd(100) Juan M. Lorenzi, Sebastian Matera, and
More informationMethane adsorption and dissociation and oxygen adsorption and reaction with CO on Pd nanoparticles on MgO(100) and on Pd(111)
Surface Science 591 (2005) 90 107 www.elsevier.com/locate/susc Methane adsorption and dissociation and oxygen adsorption and reaction with CO on Pd nanoparticles on MgO(100) and on Pd(111) Steven L. Tait
More informationSupporting Information Towards N-doped graphene via solvothermal synthesis
Supporting Information Towards N-doped graphene via solvothermal synthesis Dehui Deng1, Xiulian Pan1*, Liang Yu1, Yi Cui1, Yeping Jiang2, Jing Qi3, Wei-Xue Li1, Qiang Fu1, Xucun Ma2, Qikun Xue2, Gongquan
More informationSupporting information for: Geometry
Supporting information for: C Cl/Cu(4): Interaction and Adsorption Geometry Takamasa Makino, Siti Zulaehah, Jessiel Siaron Gueriba, Wilson Agerico Diño,,, and Michio Okada, Institute of Radiation Sciences
More informationA high-pressure-induced dense CO overlayer on Pt(111) surface: A chemical analysis using in-situ near ambient pressure XPS
Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics. This journal is the Owner Societies 2014 Electronic Supplementary Information for A high-pressure-induced dense CO overlayer
More informationAdsorption, desorption, and diffusion on surfaces. Joachim Schnadt Divsion of Synchrotron Radiation Research Department of Physics
Adsorption, desorption, and diffusion on surfaces Joachim Schnadt Divsion of Synchrotron Radiation Research Department of Physics Adsorption and desorption Adsorption Desorption Chemisorption: formation
More informationDesigning Graphene for Hydrogen Storage
Designing Graphene for Hydrogen Storage Stefan Heun NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore Pisa, Italy Outline Introduction to Hydrogen Storage Epitaxial Graphene Hydrogen Storage
More informationExploring surface chemistry and catalysis of oxygenates on cerium oxide using shape selected nanoparticles and model surfaces
Exploring surface chemistry and catalysis of oxygenates on cerium oxide using shape selected nanoparticles and model surfaces Steven H. Overbury Chemical Sciences Division Oak Ridge National Laboratory
More informationSupporting Information
Supporting Information Synchrotron-Based In Situ Characterization of Carbon-Supported Platinum and Platinum Monolayer Electrocatalysts Kotaro Sasaki 1*, Nebojsa Marinkovic 2, Hugh S. Isaacs 1, Radoslav
More informationSupporting Information
Supporting Information Indirect Four-Electron Oxygen Reduction Reaction on Carbon Materials Catalysts in Acidic Solutions Guo-Liang Chai* 1, Mauro Boero 2, Zhufeng Hou 3, Kiyoyuki Terakura 3,4 and Wendan
More informationInstitut des NanoSciences de Paris
CNRS / Photothèque Cyril Frésillon Institut des NanoSciences de Paris Polarity in low dimensions: MgO nano-ribbons on Au(111) J. Goniakowski, C. Noguera Institut des Nanosciences de Paris, CNRS & Université
More informationSurface Defects on Natural MoS 2
Supporting Information: Surface Defects on Natural MoS 2 Rafik Addou 1*, Luigi Colombo 2, and Robert M. Wallace 1* 1 Department of Materials Science and Engineering, The University of Texas at Dallas,
More informationGraphene field effect transistor as a probe of electronic structure and charge transfer at organic molecule-graphene interfaces
Electronic Supplementary Material (ESI) for Nanoscale. This journal is The Royal Society of Chemistry 2014 Supplementary Information: Graphene field effect transistor as a probe of electronic structure
More informationCatalytic Activity of IrO 2 (110) Surface: A DFT study
Catalytic Activity of IrO 2 (110) Surface: A DFT study Jyh-Chiang Jiang Department of Chemical Engineering, National Taiwan University of Science and Technology (NTUST) NCTS-NCKU 9/7, 2010 Computational
More informationSupplementary Information for Optical and magneto-optical behavior of Cerium Yttrium Iron Garnet thin films at wavelengths of nm
Supplementary Information for Optical and magneto-optical behavior of Cerium Yttrium Iron Garnet thin films at wavelengths of 200-1770 nm Mehmet C. Onbasli 1,a), Lukáš Beran 2,a), Martin Zahradník 2, Miroslav
More informationSupporting Information
Supporting Information Controlled Growth of Ceria Nanoarrays on Anatase Titania Powder: A Bottom-up Physical Picture Hyun You Kim 1, Mark S. Hybertsen 2*, and Ping Liu 2* 1 Department of Materials Science
More informationSupporting Information. Surface-Enhanced Polymerization via Schiff-base Coupling. at the Solid-Water Interface under ph-control. and Claudio Goletti d
Supporting Information Surface-Enhanced Polymerization via Schiff-base Coupling at the Solid-Water Interface under ph-control Marco Di Giovannantonio, a,b Tomasz Kosmala, a,c Beatrice Bonanni, d Giulia
More informationAdvanced Lab Course. X-Ray Photoelectron Spectroscopy 1 INTRODUCTION 1 2 BASICS 1 3 EXPERIMENT Qualitative analysis Chemical Shifts 7
Advanced Lab Course X-Ray Photoelectron Spectroscopy M210 As of: 2015-04-01 Aim: Chemical analysis of surfaces. Content 1 INTRODUCTION 1 2 BASICS 1 3 EXPERIMENT 3 3.1 Qualitative analysis 6 3.2 Chemical
More informationSurface Characte i r i zat on LEED Photoemission Phot Linear optics
Surface Characterization i LEED Photoemission Linear optics Surface characterization with electrons MPS M.P. Seah, WA W.A. Dench, Surf. Interf. Anal. 1 (1979) 2 LEED low energy electron diffraction De
More information1 IMEM-CNR, U.O.S. Genova, Via Dodecaneso 33, Genova, IT. 2 Dipartimento di Fisica, Università di Genova, Via Dodecaneso 33, Genova, IT
Spontaneous Oxidation of Ni Nanoclusters on MgO Monolayers Induced by Segregation of Interfacial Oxygen. M. Smerieri 1, J. Pal 1,2, L. Savio 1*, L. Vattuone 1,2, R. Ferrando 1,3, S. Tosoni 4, L. Giordano
More informationSupporting Information for PbTiO 3
Supporting Information for PbTiO 3 (001) Capped with ZnO(11 20): An Ab-Initio Study of Effect of Substrate Polarization on Interface Composition and CO 2 Dissociation Babatunde O. Alawode and Alexie M.
More informationAnalysis of Flame-Formed Organic. Photoionization Measurements
Analysis of Flame-Formed Organic Nanoparticles by UV Laser Photoionization Measurements Mario Commodo Istituto di Ricerche sulla Combustione, CNR, P.le Tecchio, 80, 80126, Napoli, Italy Patrizia Minutolo
More informationSUPPLEMENTARY INFORMATION
SUPPLEMENTARY INFORMATION Using first principles to predict bimetallic catalysts for the ammonia decomposition reaction Danielle A. Hansgen, Dionisios G. Vlachos, Jingguang G. Chen SUPPLEMENTARY INFORMATION.
More informationElectron Rutherford Backscattering, a versatile tool for the study of thin films
Electron Rutherford Backscattering, a versatile tool for the study of thin films Maarten Vos Research School of Physics and Engineering Australian National University Canberra Australia Acknowledgements:
More informationQUESTIONS AND ANSWERS
QUESTIONS AND ANSWERS (1) For a ground - state neutral atom with 13 protons, describe (a) Which element this is (b) The quantum numbers, n, and l of the inner two core electrons (c) The stationary state
More informationPartial oxidation of methanol on well-ordered V 2 O 5 (001)/Au(111) thin films
PAPER www.rsc.org/pccp Physical Chemistry Chemical Physics Partial oxidation of methanol on well-ordered V 2 O 5 (001)/Au(111) thin films J. M. Sturm,w D. Göbke, H. Kuhlenbeck,*z J. Döbler,y U. Reinhardt,z
More informationHigh Resolution Photoemission Study of the Spin-Dependent Band Structure of Permalloy and Ni
High Resolution Photoemission Study of the Spin-Dependent Band Structure of Permalloy and Ni K. N. Altmann, D. Y. Petrovykh, and F. J. Himpsel Department of Physics, University of Wisconsin, Madison, 1150
More informationUniversité de Cergy-Pontoise, FRANCE
Water formation through O 2 +D pathway on cold silicate, graphite and amorphous water surfaces of interstellar interest Henda Chaabouni Marco Minissale, François Dulieu LERMA-LAMAp, UMR 82 du CNRS, Observatoire
More informationSupplementary Information
Supplementary Information Supplementary Figure 1 AFM and Raman characterization of WS 2 crystals. (a) Optical and AFM images of a representative WS 2 flake. Color scale of the AFM image represents 0-20
More informationThe effectiveness of HCl and HF cleaning of Si 0.85 Ge 0.15 surface. Stanford Synchrotron Radiation Lab, Menlo Park, CA 94025
July 2008 SLAC-PUB-13302 The effectiveness of HCl and HF cleaning of Si 0.85 Ge 0.15 surface Yun Sun, a) Zhi Liu, Shiyu Sun, Piero Pianetta Stanford Synchrotron Radiation Lab, Menlo Park, CA 94025 The
More informationStability of Organic Cations in Solution-Processed CH3NH3PbI3 Perovskites: Formation of Modified Surface Layers
Stability of Organic Cations in Solution-Processed CH3NH3PbI3 Perovskites: Formation of Modified Surface Layers A. Calloni,*, A. Abate, G. Bussetti, G. Berti, R. Yivlialin, F. Ciccacci, and L. Duò Dipartimento
More informationInitiation of nuclear reactions under laser irradiation of Au nanoparticles in the aqueous solution of Uranium salt. A.V. Simakin and G.A.
Initiation of nuclear reactions under laser irradiation of Au nanoparticles in the aqueous solution of Uranium salt A.V. Simakin and G.A. Shafeev Wave Research Center of A.M. Prokhorov General Physics
More informationIn order to determine the energy level alignment of the interface between cobalt and
SUPPLEMENTARY INFORMATION Energy level alignment of the CuPc/Co interface In order to determine the energy level alignment of the interface between cobalt and CuPc, we have performed one-photon photoemission
More informationUnravelling Single Atom Catalysis: The Surface Science Approach
Unravelling Single Atom Catalysis: The Surface Science Approach Gareth S. Parkinson Institute of Applied Physics, TU Wien, Vienna, Austria Email: parkinson@iap.tuwien.ac.at This work was supported by the
More informationFig Photoemission process.
1.1 Photoemission process (Ref. 3.1, P. 43) When a sample surface is irradiated with photons of energy hυ, electrons are emitted from the sample surface. Figure 1.1.1 shows the essence of this photoemission
More informationIdentification of Defect Sites on MgO(100) Surfaces
Langmuir 2002, 18, 3999-4004 3999 Identification of Defect Sites on MgO(100) Surfaces Y. D. Kim, J. Stultz, and D. W. Goodman* Department of Chemistry, Texas A& MUniversity, College Station, Texas 77842-3012
More informationX-Ray Photoelectron Spectroscopy (XPS) Prof. Paul K. Chu
X-Ray Photoelectron Spectroscopy (XPS) Prof. Paul K. Chu X-ray Photoelectron Spectroscopy Introduction Qualitative analysis Quantitative analysis Charging compensation Small area analysis and XPS imaging
More informationX-Ray Photoelectron Spectroscopy (XPS)-2
X-Ray Photoelectron Spectroscopy (XPS)-2 Louis Scudiero http://www.wsu.edu/~pchemlab ; 5-2669 Fulmer 261A Electron Spectroscopy for Chemical Analysis (ESCA) The 3 step model: 1.Optical excitation 2.Transport
More informationSegregated chemistry and structure on (001) and (100) surfaces of
Supporting Information Segregated chemistry and structure on (001) and (100) surfaces of (La 1-x Sr x ) 2 CoO 4 override the crystal anisotropy in oxygen exchange kinetics Yan Chen a, Helena Téllez b,c,
More informationSUPPLEMENTARY INFORMATION
In the format provided by the authors and unedited. DOI: 10.1038/NMAT4879 Real time impedance monitoring of oxygen reduction during surface modification of thin film cathodes Ghislain M. Rupp 1,*, Alexander
More informationElectronic Supporting Information for
Electronic Supplementary Material (ESI) for Materials Horizons. This journal is The Royal Society of Chemistry 2015 Electronic Supporting Information for Probing the Energy Levels in Hole-doped Molecular
More informationHigh-Pressure NO-Induced Mixed Phase on Rh(111): Chemically Driven Replacement
Supporting Information for High-Pressure NO-Induced Mixed Phase on Rh(111): Chemically Driven Replacement Ryo Toyoshima, Masaaki Yoshida, Yuji Monya, Kazuma Suzuki, Kenta Amemiya, Kazuhiko Mase, Bongjin
More informationPhotoemission Spectroscopy
FY13 Experimental Physics - Auger Electron Spectroscopy Photoemission Spectroscopy Supervisor: Per Morgen SDU, Institute of Physics Campusvej 55 DK - 5250 Odense S Ulrik Robenhagen,
More informationEffects of methanol on crystallization of water in the deeply super cooled region
Effects of methanol on crystallization of water in the deeply super cooled region Ryutaro Souda Nanoscale Materials Center National Institute for Materials Science Japan PHYSICAL REVIEW B 75, 184116, 2007
More information(Preeti Aghalayam, Sep 2011)
(Preeti Aghalayam, Sep 2011) Adsorbed States As A approaches the catalyst surface, the PE of the system goes through a minimum. Potential Energy (system) ΔH c ΔH p Physisorption vs. Chemisorption A + Catalyst
More informationSupporting Online Material for
www.sciencemag.org/cgi/content/full/321/5894/1331/dc1 Supporting Online Material for Identification of Active Gold Nanoclusters on Iron Oxide Supports for CO Oxidation Andrew A. Herzing, Christopher J.
More informationPhysical and chemical properties of high density atomic oxygen overlayers under ultrahigh vacuum conditions: 1 1 -O/Rh 111
JOURNAL OF CHEMICAL PHYSICS VOLUME 112, NUMBER 5 1 FEBRUARY 2000 Physical and chemical properties of high density atomic oxygen overlayers under ultrahigh vacuum conditions: 1 1 -O/Rh 111 K. D. Gibson,
More informationPHYSICAL VAPOR DEPOSITION OF THIN FILMS
PHYSICAL VAPOR DEPOSITION OF THIN FILMS JOHN E. MAHAN Colorado State University A Wiley-Interscience Publication JOHN WILEY & SONS, INC. New York Chichester Weinheim Brisbane Singapore Toronto CONTENTS
More information