1
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Onwudinanti C, Brocks G, Koelman V, Morgan T, Tao S. Hydrogen diffusion out of ruthenium-an ab initio study of the role of adsorbates. Phys Chem Chem Phys 2020; 22:7935-7941. [PMID: 32232240 DOI: 10.1039/d0cp00448k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogen permeation into mirrors used in extreme ultraviolet lithography results in the formation of blisters, which are detrimental to reflectivity. An understanding of the mechanism via which hydrogen ends up at the interface between the top ruthenium layer and the underlying bilayers is necessary to mitigate the blistering damage. In this study, we use density functional theory to examine the ways in which hydrogen, having entered the near-surface interstitial voids, can migrate further into the metal or to its surface. We show that with hydrogen and tin adsorbed on the ruthenium surface, diffusion to the surface is blocked for interstitial hydrogen in the metal, making diffusion further into the metal more likely than out-diffusion. The dependence on surface conditions matches and confirms similar findings on hydrogen permeation into metals. This suggests control and modification of surface conditions as a way to influence hydrogen retention and blistering.
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Affiliation(s)
- Chidozie Onwudinanti
- DIFFER-Dutch Institute for Fundamental Energy Research, Eindhoven, The Netherlands and Center for Computational Energy Research, Department of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands.
| | - Geert Brocks
- Center for Computational Energy Research, Department of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands. and Computational Materials Science, Faculty of Science and Technology and MESA+ Institute for Nanotechnology, University of Twente, 7500 AE Enschede, The Netherlands
| | - Vianney Koelman
- DIFFER-Dutch Institute for Fundamental Energy Research, Eindhoven, The Netherlands and Center for Computational Energy Research, Department of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands.
| | - Thomas Morgan
- DIFFER-Dutch Institute for Fundamental Energy Research, Eindhoven, The Netherlands
| | - Shuxia Tao
- Center for Computational Energy Research, Department of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands.
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2
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Chen BWJ, Mavrikakis M. How coverage influences thermodynamic and kinetic isotope effects for H2/D2 dissociative adsorption on transition metals. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02338k] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Hydrogen isotope effects are influenced by adsorbate coverage: at high coverages, isotope effects are lower than at low coverages. This helps to rationalize observed isotope effects, allowing more precise elucidation of reaction mechanisms.
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Affiliation(s)
- Benjamin W. J. Chen
- Department of Chemical and Biological Engineering
- University of Wisconsin – Madison
- Madison
- USA
| | - Manos Mavrikakis
- Department of Chemical and Biological Engineering
- University of Wisconsin – Madison
- Madison
- USA
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3
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Ding ZB, Maestri M. Development and Assessment of a Criterion for the Application of Brønsted-Evans-Polanyi Relations for Dissociation Catalytic Reactions at Surfaces. Ind Eng Chem Res 2019; 58:9864-9874. [PMID: 31303692 PMCID: PMC6614882 DOI: 10.1021/acs.iecr.9b01628] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 05/16/2019] [Accepted: 05/20/2019] [Indexed: 11/28/2022]
Abstract
![]()
We
propose and assess a criterion for the application of Brønsted–Evans–Polanyi (BEP)
relations for dissociation reactions at surfaces. A theory-to-theory
comparison with density functional theory calculations is presented
on different reactions, metal catalysts, and surface terminations.
In particular, the activation energies of CH, CO, and trans-COOH dissociation reactions on (100), (110), (111), and (211) surfaces
of Ni, Cu, Rh, Pd, Ag, and Pt are considered. We show that both the
activation energy and the reaction energy can be decomposed into two
contributions that reflect the influence of reactant and products
in determining either the activation energy or the reaction energy.
We show that the applicability of the BEP relation implies that the
reaction energy and activation energy correlate to these two contributions
in the range of conditions to be described by the BEP relation. A
lack of correlation between these components for the activation energy
is related to a change in the character of the transition state (TS)
and this turns out to be incompatible with a BEP relation because
it results in a change of the slope of the BEP relation. Our analysis
reveals that these two contributions follow the same trends for the
activation energy and for the reaction energy when the path is not
characterized either by the formation of stable intermediates or by
the change of the binding mechanism of the reactant. As such, one
can assess whether a BEP relation can be applied or not for a set
of conditions only by means of thermochemical calculations and without
requiring the identification of the TS along the reaction pathway.
We provide evidence that this criterion can be successfully applied
for the preliminary discrimination of the applicability of the BEP
relations. For instance, on the one hand, our analysis provides evidence
that the two contributions are fully anticorrelated for the trans-COOH dissociation reactions on different metals and
surfaces, thus revealing that the reaction is characterized by a change
in the TS character. In this situation, no BEP relation can be used
to describe the activation energy trend among the different metals
and surfaces in full agreement with our DFT calculations. On the other
hand, our criterion reveals that the TS character is not expected
to change for CH dissociation reactions both for the same facet, different
metals and for same metal, different facets, in good agreement with
the DFT calculations of the activation energy. The formation of multiple
stable intermediates along the reaction pathways and the change of
the binding mechanism of one of the reactants are demonstrated to
affect the validity of the criterion. As a whole, our findings make
possible an assessment of the applicability of the BEP relation and
paves the way toward its use for the exploration of complex reaction
networks for different metals and surfaces.
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Affiliation(s)
- Zhao-Bin Ding
- Laboratory of Catalysis and Catalytic Processes-Dipartimento di Energia, Politecnico di Milano, via La Masa 34, Milano 20156, Italy
| | - Matteo Maestri
- Laboratory of Catalysis and Catalytic Processes-Dipartimento di Energia, Politecnico di Milano, via La Masa 34, Milano 20156, Italy
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4
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Foppa L, Iannuzzi M, Copéret C, Comas-Vives A. Facile Fischer–Tropsch Chain Growth from CH2 Monomers Enabled by the Dynamic CO Adlayer. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00239] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lucas Foppa
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, CH-8093 Zürich, Switzerland
| | - Marcella Iannuzzi
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, CH-8093 Zürich, Switzerland
| | - Aleix Comas-Vives
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, CH-8093 Zürich, Switzerland
- Department of Chemistry, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Catalonia, Spain
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5
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Piccolo L, Chatelier C, De Weerd MC, Morfin F, Ledieu J, Fournée V, Gille P, Gaudry E. Catalytic properties of Al 13TM 4 complex intermetallics: influence of the transition metal and the surface orientation on butadiene hydrogenation. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2019; 20:557-567. [PMID: 31258823 PMCID: PMC6586146 DOI: 10.1080/14686996.2019.1608792] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/14/2019] [Accepted: 04/15/2019] [Indexed: 06/09/2023]
Abstract
Complex intermetallic compounds such as transition metal (TM) aluminides are promising alternatives to expensive Pd-based catalysts, in particular for the semi-hydrogenation of alkynes or alkadienes. Here, we compare the gas-phase butadiene hydrogenation performances of o-Al13Co4(100), m-Al13Fe4(010) and m-Al13Ru4(010) surfaces, whose bulk terminated structural models exhibit similar cluster-like arrangements. Moreover, the effect of the surface orientation is assessed through a comparison between o-Al13Co4(100) and o-Al13Co4(010). As a result, the following room-temperature activity order is determined: Al13Co4(100) < Al13Co4(010) < Al13Ru4(010) < Al13Fe4(010). Moreover, Al13Co4(010) is found to be the most active surface at 110°C, and even more selective to butene (100%) than previously investigated Al13Fe4(010). DFT calculations show that the activity and selectivity results can be rationalized through the determination of butadiene and butene adsorption energies; in contrast, hydrogen adsorption energies do not scale with the catalytic activities. Moreover, the calculation of projected densities of states provides an insight into the Al13TM4 surface electronic structure. Isolating the TM active centers within the Al matrix induces a narrowing of the TM d-band, which leads to the high catalytic performances of Al13TM4 compounds.
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Affiliation(s)
- Laurent Piccolo
- Univ Lyon, Université Claude Bernard - Lyon 1, CNRS, IRCELYON, Villeurbanne, France
| | - Corentin Chatelier
- Université de Lorraine, CNRS, IJL, Nancy, France
- Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, France
| | | | - Franck Morfin
- Univ Lyon, Université Claude Bernard - Lyon 1, CNRS, IRCELYON, Villeurbanne, France
| | | | | | - Peter Gille
- Department of Earth and Environmental Sciences, Crystallography Section, Ludwig-Maximilians-Universität München, München, Germany
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6
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Onwudinanti C, Tranca I, Morgan T, Tao S. Tin, The Enabler-Hydrogen Diffusion into Ruthenium. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E129. [PMID: 30669594 PMCID: PMC6359073 DOI: 10.3390/nano9010129] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 01/14/2019] [Accepted: 01/16/2019] [Indexed: 12/25/2022]
Abstract
Hydrogen interaction with ruthenium is of particular importance for the ruthenium-capped multilayer reflectors used in extreme ultraviolet (EUV) lithography. Hydrogen causes blistering, which leads to a loss of reflectivity. This problem is aggravated by tin. This study aims to uncover the mechanism via which tin affects the hydrogen uptake, with a view to mitigation. We report here the results of a study of hydrogen interaction with the ruthenium surface in the presence of tin using Density Functional Theory and charge density analyses. Our calculations show a significant drop in the energy barrier to hydrogen penetration when a tin atom or a tin hydride molecule (SnHx) is adsorbed on the ruthenium surface; the barrier has been found to drop in all tested cases with tin, from 1.06 eV to as low as 0.28 eV in the case of stannane (SnH₄). Analyses show that, due to charge transfer from the less electronegative tin to hydrogen and ruthenium, charge accumulates around the diffusing hydrogen atom and near the ruthenium surface atoms. The reduced atomic volume of hydrogen, together with the effect of electron⁻electron repulsion from the ruthenium surface charge, facilitates subsurface penetration. Understanding the nature of tin's influence on hydrogen penetration will guide efforts to mitigate blistering damage of EUV optics. It also holds great interest for applications where hydrogen penetration is desirable, such as hydrogen storage.
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Affiliation(s)
- Chidozie Onwudinanti
- Center for Computational Energy Research, DIFFER-Dutch Institute for Fundamental Energy Research, 5612 AJ Eindhoven, The Netherlands.
| | - Ionuţ Tranca
- Department of Mechanical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.
| | - Thomas Morgan
- Plasma Material Interactions, DIFFER-Dutch Institute for Fundamental Energy Research, 5612 AJ Eindhoven, The Netherlands.
| | - Shuxia Tao
- Center for Computational Energy Research, Department of Applied Physics, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.
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7
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Foppa L, Iannuzzi M, Copéret C, Comas-Vives A. Adlayer Dynamics Drives CO Activation in Ru-Catalyzed Fischer–Tropsch Synthesis. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01232] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Lucas Foppa
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, CH-8093 Zürich, Switzerland
| | - Marcella Iannuzzi
- Institute of Physical Chemistry, University of Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, CH-8093 Zürich, Switzerland
| | - Aleix Comas-Vives
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1-5, CH-8093 Zürich, Switzerland
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8
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Lechner BAJ, Feng X, Feibelman PJ, Cerdá JI, Salmeron M. Scanning Tunneling Microscopy Study of the Structure and Interaction between Carbon Monoxide and Hydrogen on the Ru(0001) Surface. J Phys Chem B 2018; 122:649-656. [PMID: 28753310 DOI: 10.1021/acs.jpcb.7b05657] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We use scanning tunneling microscopy (STM) to investigate the spatial arrangement of carbon monoxide (CO) and hydrogen (H) coadsorbed on a model catalyst surface, Ru(0001). We find that at cryogenic temperatures, CO forms small triangular islands of up to 21 molecules with hydrogen segregated outside of the islands. Furthermore, whereas for small island sizes (3-6 CO molecules) the molecules adsorb at hcp sites, a registry shift toward top sites occurs for larger islands (10-21 CO molecules). To characterize the CO structures better and to help interpret the data, we carried out density functional theory (DFT) calculations of the structure and simulations of the STM images, which reveal a delicate interplay between the repulsions of the different species.
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Affiliation(s)
- Barbara A J Lechner
- Materials Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - Xiaofeng Feng
- Materials Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - Peter J Feibelman
- Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Jorge I Cerdá
- Instituto de Ciencia de Materiales de Madrid, ICMM-CSIC , Cantoblanco, 28049 Madrid, Spain
| | - Miquel Salmeron
- Materials Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
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9
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Mebrahtu C, Krebs F, Perathoner S, Abate S, Centi G, Palkovits R. Hydrotalcite based Ni–Fe/(Mg, Al)Ox catalysts for CO2 methanation – tailoring Fe content for improved CO dissociation, basicity, and particle size. Catal Sci Technol 2018. [DOI: 10.1039/c7cy02099f] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Advantages of hydrotalcite-like precursors and the synergistic effect of bimetallic Ni–Fe alloys are combined and the most appropriate amount of Fe identified with respect to activity, selectivity and stability.
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Affiliation(s)
- C. Mebrahtu
- Dipartimento di Ingegneria
- Università di Messina and INSTM CASPE (Laboratory of Catalysis for Sustainable Production and Energy) and ERIC
- 98165 Messina
- Italy
- Lehrstuhl für Heterogene Katalyse und Technische Chemie
| | - F. Krebs
- Lehrstuhl für Heterogene Katalyse und Technische Chemie
- Institut für Technische und Makromolekulare Chemie (ITMC) RWTH Aachen University
- 52074 Aachen
- Germany
- Competence Center Power to Fuel/RWTH Aachen University
| | - S. Perathoner
- Dipartimento di Ingegneria
- Università di Messina and INSTM CASPE (Laboratory of Catalysis for Sustainable Production and Energy) and ERIC
- 98165 Messina
- Italy
| | - S. Abate
- Dipartimento di Ingegneria
- Università di Messina and INSTM CASPE (Laboratory of Catalysis for Sustainable Production and Energy) and ERIC
- 98165 Messina
- Italy
| | - G. Centi
- Dipartimento di Ingegneria
- Università di Messina and INSTM CASPE (Laboratory of Catalysis for Sustainable Production and Energy) and ERIC
- 98165 Messina
- Italy
| | - R. Palkovits
- Lehrstuhl für Heterogene Katalyse und Technische Chemie
- Institut für Technische und Makromolekulare Chemie (ITMC) RWTH Aachen University
- 52074 Aachen
- Germany
- Competence Center Power to Fuel/RWTH Aachen University
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10
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Electrochemical Kinetics: a Surface Science-Supported Picture of Hydrogen Electrochemistry on Ru(0001) and Pt/Ru(0001). Electrocatalysis (N Y) 2017. [DOI: 10.1007/s12678-017-0381-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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11
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Cusinato L, Martínez-Prieto LM, Chaudret B, Del Rosal I, Poteau R. Theoretical characterization of the surface composition of ruthenium nanoparticles in equilibrium with syngas. NANOSCALE 2016; 8:10974-10992. [PMID: 27172520 DOI: 10.1039/c6nr01191h] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A deeper understanding of the relationship between experimental reaction conditions and the surface composition of nanoparticles is crucial in order to elucidate mechanisms involved in nanocatalysis. In the framework of the Fischer-Tropsch synthesis, a resolution of this complex puzzle requires a detailed understanding of the interaction of CO and H with the surface of the catalyst. In this context, the single- and co-adsorption of CO and H to the surface of a 1 nm ruthenium nanoparticle has been investigated with density functional theory. Using several indexes (d-band center, crystal overlap Hamilton population, density of states), a systematic analysis of the bond properties and of the electronic states has also been done, in order to bring an understanding of structure/property relationships at the nanoscale. The H : CO surface composition of this ruthenium nanoparticle exposed to syngas has been evaluated according to a thermodynamic model fed with DFT energies. Such ab initio thermodynamic calculations give access to the optimal H : CO coverage values under a wide range of experimental conditions, through the construction of free energy phase diagrams. Surprisingly, under the Fischer-Tropsch synthesis experimental conditions, and in agreement with new experiments, only CO species are adsorbed at the surface of the nanoparticle. These findings shed new light on the possible reaction pathways underlying the Fischer-Tropsch synthesis, and specifically the initiation of the reaction. It is finally shown that the joint knowledge of the surface composition and energy descriptors can help to identify possible reaction intermediates.
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Affiliation(s)
- Lucy Cusinato
- Université de Toulouse; INSA, UPS, CNRS; LPCNO (IRSAMC), 135 avenue de Rangueil, F-31077 Toulouse, France.
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12
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Comas-Vives A, Furman K, Gajan D, Akatay MC, Lesage A, Ribeiro FH, Copéret C. Predictive morphology, stoichiometry and structure of surface species in supported Ru nanoparticles under H2 and CO atmospheres from combined experimental and DFT studies. Phys Chem Chem Phys 2016; 18:1969-79. [DOI: 10.1039/c5cp06710c] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
CO and H2 chemisorption stoichiometries of silica supported Ru nanoparticles are understood by combining chemisorption experiments and ab initio calculations.
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Affiliation(s)
- Aleix Comas-Vives
- ETH Zürich
- Department of Chemistry and Applied Biosciences
- CH-8093 Zürich
- Switzerland
| | - Karol Furman
- ETH Zürich
- Department of Chemistry and Applied Biosciences
- CH-8093 Zürich
- Switzerland
| | - David Gajan
- Centre de RMN à Très Hauts Champs Institut des Sciences Analytiques Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1)
- 69100 Villeurbanne
- France
| | - M. Cem Akatay
- Purdue University
- School of Chemical Engineering
- Forney Hall of Chemical Engineering
- West Lafayette
- USA
| | - Anne Lesage
- Centre de RMN à Très Hauts Champs Institut des Sciences Analytiques Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1)
- 69100 Villeurbanne
- France
| | - Fabio H. Ribeiro
- Purdue University
- School of Chemical Engineering
- Forney Hall of Chemical Engineering
- West Lafayette
- USA
| | - Christophe Copéret
- ETH Zürich
- Department of Chemistry and Applied Biosciences
- CH-8093 Zürich
- Switzerland
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13
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Wijzenbroek M, Kroes GJ. An ab initio molecular dynamics study of D2 dissociation on CO-precovered Ru(0001). Phys Chem Chem Phys 2016; 18:21190-201. [DOI: 10.1039/c6cp00291a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In dynamics studies of hydrogen dissociation on CO pre-covered Ru(0001) the simulation cell size is important for describing energy exchange.
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Affiliation(s)
- M. Wijzenbroek
- Leiden Institute of Chemistry
- Gorlaeus Laboratories
- Leiden University
- Leiden
- The Netherlands
| | - G. J. Kroes
- Leiden Institute of Chemistry
- Gorlaeus Laboratories
- Leiden University
- Leiden
- The Netherlands
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14
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Zhao P, He Y, Cao DB, Wen X, Xiang H, Li YW, Wang J, Jiao H. High coverage adsorption and co-adsorption of CO and H2 on Ru(0001) from DFT and thermodynamics. Phys Chem Chem Phys 2015; 17:19446-56. [DOI: 10.1039/c5cp02486b] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The adsorption and co-adsorption of CO and H2 at different coverages on p(4 × 4) Ru(0001) have been computed using periodic density functional theory (GGA-RPBE) and atomistic thermodynamics.
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Affiliation(s)
- Peng Zhao
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Yurong He
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Dong-Bo Cao
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Xiaodong Wen
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Hongwei Xiang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Yong-Wang Li
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Jianguo Wang
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Haijun Jiao
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
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15
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Theoretical and kinetic assessment of the mechanism of ethane hydrogenolysis on metal surfaces saturated with chemisorbed hydrogen. J Catal 2014. [DOI: 10.1016/j.jcat.2013.11.026] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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16
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Ueta H, Groot IMN, Juurlink LBF, Kleyn AW, Gleeson MA. Evidence of stable high-temperature D(x)-CO intermediates on the Ru(0001) surface. J Chem Phys 2012; 136:114710. [PMID: 22443793 DOI: 10.1063/1.3689553] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We demonstrate the formation of complexes involving attractive interactions between D and CO on Ru(0001) that are stable at significantly higher temperatures than have previously been reported for such intermediate species on this surface. These complexes are evident by the appearance of new desorption features upon heating of the sample. They decompose in stages as the sample temperature is increased, with the most stable component desorbing at >500 K. The D:CO ratio remaining on the surface during the final stages of desorption tends towards 1:1. The new features are populated during normally incident molecular beam dosing of D(2) on to CO pre-covered Ru(0001) surfaces (180 K) when the CO coverage exceeds 50% of the saturation value. The amount of complex formed decreases somewhat with increasing CO pre-coverage. It is almost absent in the case of dosing on to the fully saturated surface. The results are interpreted in terms of both local and long-range rearrangements of the overlayer that give rise to the observed CO coverage dependence and limit the amount of complex that can be formed.
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Affiliation(s)
- Hirokazu Ueta
- FOM Institute DIFFER, Dutch Institute for Fundamental Energy Research, P.O. Box 1207, 3430 BE Nieuwegein, The Netherlands
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17
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Lara P, Casanove MJ, Lecante P, Fazzini PF, Philippot K, Chaudret B. Segregation at a small scale: synthesis of core–shell bimetallic RuPt nanoparticles, characterization and solid state NMR studies. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm14757b] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Li H, Fu G, Xu X. A new insight into the initial step in the Fischer–Tropsch synthesis: CO dissociation on Ru surfaces. Phys Chem Chem Phys 2012; 14:16686-94. [DOI: 10.1039/c2cp43176a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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20
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Ueta H, Gleeson MA, Kleyn AW. The interaction of hyperthermal argon atoms with CO-covered Ru(0001): Scattering and collision-induced desorption. J Chem Phys 2011; 134:064706. [DOI: 10.1063/1.3545974] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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del Rosal I, Gutmann T, Walaszek B, Gerber IC, Chaudret B, Limbach HH, Buntkowsky G, Poteau R. 2H NMR calculations on polynuclear transition metal complexes: on the influence of local symmetry and other factors. Phys Chem Chem Phys 2011; 13:20199-207. [DOI: 10.1039/c1cp22081k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Groot IMN, Juanes-Marcos JC, Olsen RA, Kroes GJ. A theoretical study of H2 dissociation on (3×3)R30°CO/Ru(0001). J Chem Phys 2010; 132:144704. [DOI: 10.1063/1.3378278] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- I M N Groot
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands.
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23
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Campbell PS, Santini CC, Bouchu D, Fenet B, Philippot K, Chaudret B, Pádua AAH, Chauvin Y. A novel stabilisation model for ruthenium nanoparticles in imidazolium ionic liquids: in situ spectroscopic and labelling evidence. Phys Chem Chem Phys 2010; 12:4217-23. [DOI: 10.1039/b925329g] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Truï¬andier LA, Del Rosal I, Chaudret B, Poteau R, Gerber IC. Where does Hydrogen Adsorb on Ru Nanoparticles? A Powerful Joint2H MAS-NMR/DFT Approach. Chemphyschem 2009; 10:2939-42. [DOI: 10.1002/cphc.200900597] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Walaszek B, Yeping X, Adamczyk A, Breitzke H, Pelzer K, Limbach HH, Huang J, Li H, Buntkowsky G. 2H-solid-state-NMR study of hydrogen adsorbed on catalytically active ruthenium coated mesoporous silica materials. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2009; 35:164-171. [PMID: 19359146 DOI: 10.1016/j.ssnmr.2009.02.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2009] [Revised: 02/17/2009] [Accepted: 02/26/2009] [Indexed: 05/27/2023]
Abstract
(2)H solid-state NMR measurements were performed on three samples of ruthenium nanoparticles synthesized inside two different kinds of mesoporous silica, namely SBA-3 silica materials and SBA-15 functionalized with -COOH groups and loaded with deuterium gas. The line-shape analyses of the spectra reveal the different deuteron species. In all samples a strong -OD signal is found, which shows the catalytic activity of the metal, which activates the D-D bond and deuterates the -SiOH groups through the gas phase, corroborating their usability as catalysts for hydrogenation reactions. At room temperature the mobility of the -Si-OD groups depends on the sample preparation. In addition to the -Si-OD deuterons, the presence of different types of deuterons bound to the metal is revealed. The singly coordinated -Ru-D species exhibit several different quadrupolar couplings, which indicate the presence of several non-equivalent binding sites with differing binding strength. In addition to the dissociated hydrogen species there is also a dihydrogen species -Ru-D(2), which is attributed to defect sites on the surface. It exhibits a fast rotational dynamics at all temperatures. Finally there are also indications of three-fold coordinated surface deuterons and octahedrally coordinated deuterons inside the metal.
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Affiliation(s)
- Bernadeta Walaszek
- Institut für Physikalische und Theoretische Chemie, Freie Universität Berlin, Berlin, Germany
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26
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Del Rosal I, Jolibois F, Maron L, Philippot K, Chaudret B, Poteau R. Ligand effect on the NMR, vibrational and structural properties of tetra- and hexanuclear ruthenium hydrido clusters: a theoretical investigation. Dalton Trans 2009:2142-56. [PMID: 19274293 DOI: 10.1039/b817055j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Structural and spectroscopic properties of tetranuclear ruthenium hydrido clusters, and to a less extent, of hexanuclear ruthenium hydrido clusters, are investigated theoretically. Some of these (H)(n)Ru(k)(L)(m) (k = 4, 6) clusters were experimentally synthesized and characterized. Non-existing structures are also considered in order to examine the role of ligands on their structure, vibrational spectra and (1)H NMR chemical shifts. The calculated properties are found in very good agreement with experimental data, when available. Beyond the intrinsic interest elicited by transition metal clusters, these compounds are also considered in this paper as relevant to diamagnetic ruthenium nanoparticles as well as building blocks of hcp surfaces, which is the ruthenium nanoparticle lattice. On the basis of the very good agreement between experiments and theory, the structural and spectroscopic properties of several model clusters are also predicted in order to bring additional data which may help to analyze the spectral signature of ruthenium nanoparticles. A particular emphasis is put on (1)H NMR, which is of high practical importance for characterizing the presence of hydrides in ruthenium clusters and nanoparticles. Several topics are discussed: the structural preference of surface hydrides for terminal-, edge-bridging or face-capping coordination modes, hydrides adsorption energies, the possible presence of interstitial hydrogen atoms, the dependence of (1)H chemical shifts on ligands and on electron counting.
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27
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Ueta H, Groot IMN, Gleeson MA, Stolte S, McBane GC, Juurlink LBF, Kleyn AW. CO Blocking of D2Dissociative Adsorption on Ru(0001). Chemphyschem 2008; 9:2372-8. [DOI: 10.1002/cphc.200800294] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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28
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Johansson M, Lytken O, Chorkendorff I. The sticking probability for H2 on some transition metals at a hydrogen pressure of 1bar. J Chem Phys 2008; 128:034706. [DOI: 10.1063/1.2825296] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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29
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Inderwildi OR, Jenkins SJ. In-silico investigations in heterogeneous catalysis—combustion and synthesis of small alkanes. Chem Soc Rev 2008; 37:2274-309. [DOI: 10.1039/b719149a] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Spendelow JS, Goodpaster JD, Kenis PJA, Wieckowski A. Mechanism of CO Oxidation on Pt(111) in Alkaline Media. J Phys Chem B 2006; 110:9545-55. [PMID: 16686501 DOI: 10.1021/jp060100c] [Citation(s) in RCA: 144] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Electrochemical techniques, coupled with in situ scanning tunneling microscopy, have been used to examine the mechanism of CO oxidation and the role of surface structure in promoting CO oxidation on well-ordered and disordered Pt(111) in aqueous NaOH solutions. Oxidation of CO occurs in two distinct potential regions: the prepeak (0.25-0.70 V) and the main peak (0.70 V and higher). The mechanism of reaction is Langmuir-Hinshelwood in both regions, but the OH adsorption site is different. In the prepeak, CO oxidation occurs through reaction with OH that is strongly adsorbed at defect sites. Adsorption of OH on defects at low potentials has been verified using charge displacement measurements. Not all CO can be oxidized in the prepeak, since the Pt-CO bond strength increases as the CO coverage decreases. Below theta(CO) = 0.2 monolayer, CO is too strongly bound to react with defect-bound OH. Oxidation of CO at low coverage occurs in the main peak through reaction with OH adsorbed on (111) terraces, where the Pt-OH bond is weaker than on defects. The enhanced oxidation of CO in alkaline media is attributed to the higher affinity of the Pt(111) surface for adsorption of OH at low potentials in alkaline media as compared with acidic media.
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Affiliation(s)
- J S Spendelow
- Departments of Chemistry of Chemical & Biomolecular Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA
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31
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Huo CF, Li YW, Wang J, Jiao H. Surface Structure and Energetics of Hydrogen Adsorption on the Fe(111) Surface. J Phys Chem B 2005; 109:14160-7. [PMID: 16852778 DOI: 10.1021/jp051907s] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Spin-polarized density functional theory calculations have been performed to characterize the hydrogen adsorption and diffusion on the Fe(111) surface at 2/3-, 1-, and 2-monolayer (ML) coverages. It is found that the most favored adsorption site for atomic hydrogen (H) is the top-shallow bridge site (tsb), followed by the quasi 4-fold site (qff) with the energy difference of about 0.1 eV, while the top site (t) is not competitive. Furthermore, the adsorbed atomic hydrogen (H) has a high mobility, as indicated by the small diffusion barriers. The local density of state (LDOS) analysis reveals that the Fe-H (tsb or qff) bond involves mainly the Fe 4s and 4p and H 1s orbitals with less contribution of the Fe 3d orbital, while the Fe 4s, 4p, and 3d orbitals all participate in the Fe-H (top) bond. In addition, the coverage effects on the adsorption configurations and adsorption energies are addressed.
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Affiliation(s)
- Chun-Fang Huo
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P.R. China
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32
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Cao DB, Zhang FQ, Li YW, Wang J, Jiao H. Density Functional Theory Study of Hydrogen Adsorption on Fe5C2(001), Fe5C2(110), and Fe5C2(100). J Phys Chem B 2005; 109:833-44. [PMID: 16866449 DOI: 10.1021/jp046239+] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Density functional theory calculations have been carried out for hydrogen adsorption on the (001), (110), and (100) surfaces of Fe5C2. At 1/3 and 2/3 monolyer (ML) on (001), the most stable hydrocarbon species is CsH, while CsH and CsH3 can coexist at 1 ML. On (110), only dissociated hydrogen is found at 2/5 ML, while CsH is the most stable hydrogen carbon species at 4/5 ML, and CsH and CH3 coexist at 6/5 ML. On (001) and (110) surfaces, CsH2 is less stable and can dissociate into CsH or convert into CsH3, respectively. These results are in agreement with the experimental observations. On the metallic Fe5C2(100) surface which lacks surface carbon atoms on the surface monolayer, dissociated hydrogen is found at 1/2 ML, while both dissociated hydrogen and activated H2 are found at 1 ML.
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Affiliation(s)
- Dong-Bo Cao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China
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33
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Cao DB, Zhang FQ, Li YW, Jiao H. Density Functional Theory Study of CO Adsorption on Fe5C2(001), -(100), and -(110) Surfaces. J Phys Chem B 2004. [DOI: 10.1021/jp049470w] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dong-Bo Cao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China, and Leibniz-Institut für Organische Katalyse an der Universität Rostock e.V., Buchbinderstrasse 5-6, 18055 Rostock, Germany
| | - Fu-Qiang Zhang
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China, and Leibniz-Institut für Organische Katalyse an der Universität Rostock e.V., Buchbinderstrasse 5-6, 18055 Rostock, Germany
| | - Yong-Wang Li
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China, and Leibniz-Institut für Organische Katalyse an der Universität Rostock e.V., Buchbinderstrasse 5-6, 18055 Rostock, Germany
| | - Haijun Jiao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, People's Republic of China, and Leibniz-Institut für Organische Katalyse an der Universität Rostock e.V., Buchbinderstrasse 5-6, 18055 Rostock, Germany
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