101
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Vári G, Óvári L, Papp C, Steinrück HP, Kiss J, Kónya Z. The Interaction of Cobalt with CeO2(111) Prepared on Cu(111). THE JOURNAL OF PHYSICAL CHEMISTRY C 2015. [DOI: 10.1021/acs.jpcc.5b00626] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gábor Vári
- Department
of Applied and Environmental Chemistry, University of Szeged, H-6720 Szeged, Rerrich Béla tér
1, Hungary
| | - László Óvári
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, H-6720 Szeged, Rerrich Béla tér 1, Hungary
| | - Christian Papp
- Chair
of Physical Chemistry II, University of Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany
| | - Hans-Peter Steinrück
- Chair
of Physical Chemistry II, University of Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany
| | - János Kiss
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, H-6720 Szeged, Rerrich Béla tér 1, Hungary
| | - Zoltán Kónya
- Department
of Applied and Environmental Chemistry, University of Szeged, H-6720 Szeged, Rerrich Béla tér
1, Hungary
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, H-6720 Szeged, Rerrich Béla tér 1, Hungary
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102
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Mudiyanselage K, Senanayake SD, Ramirez PJ, Kundu S, Baber A, Yang F, Agnoli S, Axnanda S, Liu Z, Hrbek J, Evans J, Rodriguez JA, Stacchiola D. Intermediates Arising from the Water–Gas Shift Reaction over Cu Surfaces: From UHV to Near Atmospheric Pressures. Top Catal 2015. [DOI: 10.1007/s11244-015-0368-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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103
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104
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Mudiyanselage K, Baber AE, Liu Z, Senanayake SD, Stacchiola DJ. Isolation and characterization of formates on CeO –Cu O/Cu(1 1 1). Catal Today 2015. [DOI: 10.1016/j.cattod.2014.06.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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105
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Mudiyanselage K, Xu F, Hoffmann FM, Hrbek J, Waluyo I, Boscoboinik JA, Stacchiola DJ. Adsorbate-driven morphological changes on Cu(111) nano-pits. Phys Chem Chem Phys 2015; 17:3032-8. [DOI: 10.1039/c4cp05088f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Healing of a metal surface by formation of a sub-surface hydride.
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Affiliation(s)
- K. Mudiyanselage
- Chemistry Department
- Brookhaven National Laboratory
- Upton
- USA
- Department of Science
| | - F. Xu
- Chemistry Department
- Brookhaven National Laboratory
- Upton
- USA
- Chemistry Department
| | | | - J. Hrbek
- Chemistry Department
- Brookhaven National Laboratory
- Upton
- USA
| | - I. Waluyo
- Chemistry Department
- Brookhaven National Laboratory
- Upton
- USA
| | - J. A. Boscoboinik
- Center for Functional Nanomaterials
- Brookhaven National Laboratory
- Upton
- USA
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106
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Artiglia L, Agnoli S, Paganini MC, Cattelan M, Granozzi G. TiO2@CeOx core-shell nanoparticles as artificial enzymes with peroxidase-like activity. ACS APPLIED MATERIALS & INTERFACES 2014; 6:20130-6. [PMID: 25321080 DOI: 10.1021/am5057129] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The Ce4+↔Ce3+ redox switch is at the basis of an all-inorganic catalytic cycle that is capable of mimicking the activity of several natural redox enzymes. The efficiency of these artificial enzymes (nanozymes) strongly depends on the Ce4+/Ce3+ ratio. By capitalizing on the results obtained on oxide/oxide model systems, we implemented a simple and effective procedure to obtain conformal TiO2@CeOx core-shell nanoparticles whose thickness is controlled with single-layer precision. Since the Ce3+ species are stabilized only at the interface by the electronic hybridization with the TiO2 states, the modulation of the shell thickness offers a simple method to tailor the Ce4+/Ce3+ ratio and therefore the catalytic properties. The activity of these nanoparticles as artificial peroxidase-like enzymes was tested, showing exceptional performances, even better than natural horseradish peroxidase enzyme. The main advantage with respect to other oxide/oxide nanozymes is that our nanoparticles, having a tunable Ce4+/Ce3+ ratio, are efficient already at low H2O2 concentrations.
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Affiliation(s)
- Luca Artiglia
- Department of Chemical Sciences, University of Padova , via Marzolo 1, I-35131 Padova, Italy
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107
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Zhu Y, Kong X, Cao DB, Cui J, Zhu Y, Li YW. The Rise of Calcination Temperature Enhances the Performance of Cu Catalysts: Contributions of Support. ACS Catal 2014. [DOI: 10.1021/cs501155x] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Yifeng Zhu
- State
Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China
- University of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Xiao Kong
- State
Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China
- University of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Dong-Bo Cao
- State
Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China
- Synfuels China Company Ltd., Beijing 101407, P. R. China
| | - Jinglei Cui
- State
Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China
- University of Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Yulei Zhu
- State
Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China
- Synfuels China Company Ltd., Beijing 101407, P. R. China
| | - Yong-Wang Li
- State
Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China
- Synfuels China Company Ltd., Beijing 101407, P. R. China
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108
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Lin B, Qi Y, Wei K, Lin J. Effect of pretreatment on ceria-supported cobalt catalyst for ammonia synthesis. RSC Adv 2014. [DOI: 10.1039/c4ra06175f] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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109
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Graciani J, Mudiyanselage K, Xu F, Baber AE, Evans J, Senanayake SD, Stacchiola DJ, Liu P, Hrbek J, Sanz JF, Rodriguez JA. Highly active copper-ceria and copper-ceria-titania catalysts for methanol synthesis from CO2. Science 2014; 345:546-50. [DOI: 10.1126/science.1253057] [Citation(s) in RCA: 931] [Impact Index Per Article: 93.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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110
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Weissenrieder J, Gustafson J, Stacchiola D. Reactivity and Mass Transfer of Low-Dimensional Catalysts. CHEM REC 2014; 14:857-68. [DOI: 10.1002/tcr.201402006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Indexed: 11/12/2022]
Affiliation(s)
| | - Johan Gustafson
- Division of Synchrotron Radiation Research; Lund University; 221 00 Lund Sweden
| | - Dario Stacchiola
- Chemistry Department; Brookhaven National Laboratory; Upton NY 11973 USA
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111
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Insight into the size effect on methanol decomposition over Cu-based catalysts based on density functional theory. COMPUT THEOR CHEM 2014. [DOI: 10.1016/j.comptc.2014.01.029] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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112
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Huang X, Wang B, Grulke EA, Beck MJ. Toward tuning the surface functionalization of small ceria nanoparticles. J Chem Phys 2014; 140:074703. [DOI: 10.1063/1.4864378] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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113
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Abstract
We focus on recent advances in the delicate design of well-defined nanointerfaces to promote nanocatalysis towards renewable energy.
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Affiliation(s)
- Zhi-cheng Zhang
- Department of Chemistry
- Tsinghua University
- Beijing, P. R. China
| | - Biao Xu
- Department of Chemistry
- Tsinghua University
- Beijing, P. R. China
| | - Xun Wang
- Department of Chemistry
- Tsinghua University
- Beijing, P. R. China
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114
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Zhao Y, Chen G, Zheng N, Fu G. Mechanisms for CO oxidation on Fe(iii)–OH–Pt interface: a DFT study. Faraday Discuss 2014; 176:381-92. [DOI: 10.1039/c4fd00144c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The full catalytic cycle that involves the oxidation of two CO molecules is investigated here by using periodic density functional calculations. To simulate the nature of Fe(OH)x/Pt nanoparticles, three possible structural models, i.e., Fe(OH)x/Pt(111), Fe(OH)x/Pt(332) and Fe(OH)x/Pt(322), are built. We demonstrate that Fe(iii)–OH–Pt stepped sites readily react with CO adsorbed nearby to directly yield CO2 and simultaneously produce coordinatively unsaturated iron sites for O2 activation. By contrast, the created interfacial vacancy on Fe(OH)x/Pt(111) prefers to adsorb CO rather than O2, thus inhabiting the catalytic cycles of CO oxidation. We suggest that such structure sensitivity can be understood in terms of the bond strengths of Fe(iii)–OH.
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Affiliation(s)
- Yun Zhao
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- Collaborative Innovation Center of Chemistry for Energy Materials
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005, China
| | - Guangxu Chen
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- Collaborative Innovation Center of Chemistry for Energy Materials
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005, China
| | - Nanfeng Zheng
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- Collaborative Innovation Center of Chemistry for Energy Materials
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005, China
| | - Gang Fu
- State Key Laboratory for Physical Chemistry of Solid Surfaces
- Collaborative Innovation Center of Chemistry for Energy Materials
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005, China
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115
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The effect of carbon monoxide Co-adsorption on Ni-catalysed water dissociation. Int J Mol Sci 2013; 14:23301-14. [PMID: 24287907 PMCID: PMC3876046 DOI: 10.3390/ijms141223301] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 11/12/2013] [Accepted: 11/15/2013] [Indexed: 01/03/2023] Open
Abstract
The effect of carbon monoxide (CO) co-adsorption on the dissociation of water on the Ni(111) surface has been studied using density functional theory. The structures of the adsorbed water molecule and of the transition state are changed by the presence of the CO molecule. The water O-H bond that is closest to the CO is lengthened compared to the structure in the absence of the CO, and the breaking O-H bond in the transition state structure has a larger imaginary frequency in the presence of CO. In addition, the distances between the Ni surface and H2O reactant and OH and H products decrease in the presence of the CO. The changes in structures and vibrational frequencies lead to a reaction energy that is 0.17 eV less exothermic in the presence of the CO, and an activation barrier that is 0.12 eV larger in the presence of the CO. At 463 K the water dissociation rate constant is an order of magnitude smaller in the presence of the CO. This reveals that far fewer water molecules will dissociate in the presence of CO under reaction conditions that are typical for the water-gas-shift reaction.
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116
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Baber AE, Xu F, Dvorak F, Mudiyanselage K, Soldemo M, Weissenrieder J, Senanayake SD, Sadowski JT, Rodriguez JA, Matolín V, White MG, Stacchiola DJ. In Situ Imaging of Cu2O under Reducing Conditions: Formation of Metallic Fronts by Mass Transfer. J Am Chem Soc 2013; 135:16781-4. [DOI: 10.1021/ja408506y] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
| | - Fang Xu
- Stony Brook University, Stony
Brook, New York 11794, United States
| | - Filip Dvorak
- Faculty of Mathematics and Physics, Charles University, Department of Surface and Plasma Science, Prague, Czech Republic
| | | | - Markus Soldemo
- KTH Royal Institute of Technology, Material
Physics, Stockholm, Sweden
| | | | | | | | | | - Vladimír Matolín
- Faculty of Mathematics and Physics, Charles University, Department of Surface and Plasma Science, Prague, Czech Republic
| | - Michael G. White
- Stony Brook University, Stony
Brook, New York 11794, United States
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117
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Óvári L, Krick Calderon S, Lykhach Y, Libuda J, Erdőhelyi A, Papp C, Kiss J, Steinrück HP. Near ambient pressure XPS investigation of the interaction of ethanol with Co/CeO2(111). J Catal 2013. [DOI: 10.1016/j.jcat.2013.07.015] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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118
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Kim HY, Liu P. Tuning the Catalytic Selectivity of Copper Using TiO2: Water-Gas Shift versus CO Oxidation. ChemCatChem 2013. [DOI: 10.1002/cctc.201300449] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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119
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Sheng K, Kong H, Li Z, Zhang C, Sun Q, Tan Q, Pan Y, Hu A, Xu W. Atomic-Scale Probing the Priority of Oxidation Sites of an Organic Molecule Adsorbed at the CuO/Cu(1 1 0) Interface. ChemCatChem 2013. [DOI: 10.1002/cctc.201200955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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120
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Senanayake SD, Stacchiola D, Rodriguez JA. Unique properties of ceria nanoparticles supported on metals: novel inverse ceria/copper catalysts for CO oxidation and the water-gas shift reaction. Acc Chem Res 2013; 46:1702-11. [PMID: 23286528 DOI: 10.1021/ar300231p] [Citation(s) in RCA: 164] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Oxides play a central role in important industrial processes, including applications such as the production of renewable energy, remediation of environmental pollutants, and the synthesis of fine chemicals. They were originally used as catalyst supports and were thought to be chemically inert, but now they are used to build catalysts tailored toward improved selectivity and activity in chemical reactions. Many studies have compared the morphological, electronic, and chemical properties of oxide materials with those of unoxidized metals. Researchers know much less about the properties of oxides at the nanoscale, which display distinct behavior from their bulk counterparts. More is known about metal nanoparticles. Inverse-model catalysts, composed of oxide nanoparticles supported on metal or oxide substrates instead of the reverse (oxides supporting metal nanoparticles), are excellent tools for systematically testing the properties of novel catalytic oxide materials. Inverse models are prepared in situ and can be studied with a variety of surface science tools (e.g. scanning tunneling microscopy, X-ray photoemission spectroscopy, ultraviolet photoemission spectroscopy, low-energy electron microscopy) and theoretical tools (e.g. density functional theory). Meanwhile, their catalytic activity can be tested simultaneously in a reactor. This approach makes it possible to identify specific functions or structures that affect catalyst performance or reaction selectivity. Insights gained from these tests help to tailor powder systems, with the primary objective of rational design (experimental and theoretical) of catalysts for specific chemical reactions. This Account describes the properties of inverse catalysts composed of CeOx nanoparticles supported on Cu(111) or CuOx/Cu(111) as determined through the methods described above. Ceria is an important material for redox chemistry because of its interchangeable oxidation states (Ce⁴⁺ and Ce³⁺). Cu(111), meanwhile, is a standard catalyst for reactions such as CO oxidation and the water-gas shift (WGS). This metal serves as an ideal replacement for other noble metals that are neither abundant nor cost effective. To prepare the inverse system we deposited nanoparticles (2-20 nm) of cerium oxide onto the Cu(111) surface. During this process, the Cu(111) surface grows an oxide layer that is characteristic of Cu₂O (Cu¹⁺). This oxide can influence the growth of ceria nanoparticles. Evidence suggests triangular-shaped CeO₂(111) grows on Cu₂O(111) surfaces while rectangular CeO₂(100) grows on Cu₄O₃(111) surfaces. We used the CeOx/Cu₂O/Cu(111) inverse system to study two catalytic processes: the WGS (CO + H₂O → CO₂ + H₂) and CO oxidation (2CO + O₂ → 2CO₂). We discovered that the addition of small amounts of ceria nanoparticles can activate the Cu(111) surface and achieve remarkable enhancement of catalytic activity in the investigated reactions. In the case of the WGS, the CeOx nanoparticle facilitated this process by acting at the interface with Cu to dissociate water. In the CO oxidation case, an enhancement in the dissociation of O₂ by the nanoparticles was a key factor. The strong interaction between CeOx nanoparticles and Cu(111) when preoxidized and reduced in CO resulted in a massive surface reconstruction of the copper substrate with the introduction of microterraces that covered 25-35% of the surface. This constitutes a new mechanism for surface reconstruction not observed before. These microterraces helped to facilitate a further enhancement of activity towards the WGS by opening an additional channel for the dissociation of water. In summary, inverse catalysts of CeOx/Cu(111) and CeO₂/Cu₂O/Cu(111) demonstrate the versatility of a model system to obtain insightful knowledge of catalytic processes. These systems will continue to offer a unique opportunity to probe key catalytic components and elucidate the relationship between structure and reactivity of novel materials and reactions in the future.
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Affiliation(s)
- Sanjaya D. Senanayake
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11789, United States
| | - Dario Stacchiola
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11789, United States
| | - Jose A. Rodriguez
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11789, United States
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121
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Senanayake SD, Rodriguez JA, Stacchiola D. Electronic Metal–Support Interactions and the Production of Hydrogen Through the Water-Gas Shift Reaction and Ethanol Steam Reforming: Fundamental Studies with Well-Defined Model Catalysts. Top Catal 2013. [DOI: 10.1007/s11244-013-0148-5] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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122
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Svintsitskiy DA, Kibis LS, Stadnichenko AI, Zaikovskii VI, Koshcheev SV, Boronin AI. Reactivity and thermal stability of oxidized copper clusters on the tantalum(V) oxide surface. KINETICS AND CATALYSIS 2013. [DOI: 10.1134/s0023158413040198] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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123
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Hussain A, Gracia J, Nieuwenhuys BE, Niemantsverdriet JWH. Explicit Roles of Au and TiO2in a Bifunctional Au/TiO2Catalyst for the Water-Gas Shift Reaction: A DFT Study. ChemCatChem 2013. [DOI: 10.1002/cctc.201300105] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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124
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Paier J, Penschke C, Sauer J. Oxygen Defects and Surface Chemistry of Ceria: Quantum Chemical Studies Compared to Experiment. Chem Rev 2013; 113:3949-85. [DOI: 10.1021/cr3004949] [Citation(s) in RCA: 722] [Impact Index Per Article: 65.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Joachim Paier
- Institut
für Chemie, Humboldt Universität, 10099 Berlin, Germany
| | | | - Joachim Sauer
- Institut
für Chemie, Humboldt Universität, 10099 Berlin, Germany
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125
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Mudiyanselage K, Senanayake SD, Feria L, Kundu S, Baber AE, Graciani J, Vidal AB, Agnoli S, Evans J, Chang R, Axnanda S, Liu Z, Sanz JF, Liu P, Rodriguez JA, Stacchiola DJ. Importance of the Metal–Oxide Interface in Catalysis: In Situ Studies of the Water–Gas Shift Reaction by Ambient‐Pressure X‐ray Photoelectron Spectroscopy. Angew Chem Int Ed Engl 2013; 52:5101-5. [DOI: 10.1002/anie.201210077] [Citation(s) in RCA: 251] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 03/01/2013] [Indexed: 11/07/2022]
Affiliation(s)
| | | | - Leticia Feria
- Departamento de Química Física, Universidad de Sevilla, 41012 Seville (Spain)
| | - Shankhamala Kundu
- Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973 (USA)
| | - Ashleigh E. Baber
- Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973 (USA)
| | - Jesús Graciani
- Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973 (USA)
- Departamento de Química Física, Universidad de Sevilla, 41012 Seville (Spain)
| | - Alba B. Vidal
- Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973 (USA)
| | - Stefano Agnoli
- Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973 (USA)
| | - Jaime Evans
- Facultad de Ciencias, Universidad Central de Venezuela, Caracas 1020A (Venezuela)
| | - Rui Chang
- Shanghai Institute of Microsystem and Information Technology, Shanghai 200050 (China)
| | - Stephanus Axnanda
- The Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (USA)
| | - Zhi Liu
- The Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (USA)
| | - Javier F. Sanz
- Departamento de Química Física, Universidad de Sevilla, 41012 Seville (Spain)
| | - Ping Liu
- Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973 (USA)
| | - José A. Rodriguez
- Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973 (USA)
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126
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Mudiyanselage K, Senanayake SD, Feria L, Kundu S, Baber AE, Graciani J, Vidal AB, Agnoli S, Evans J, Chang R, Axnanda S, Liu Z, Sanz JF, Liu P, Rodriguez JA, Stacchiola DJ. Importance of the Metal-Oxide Interface in Catalysis: In Situ Studies of the Water-Gas Shift Reaction by Ambient-Pressure X-ray Photoelectron Spectroscopy. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201210077] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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127
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Kim HY, Henkelman G. CO Oxidation at the Interface of Au Nanoclusters and the Stepped-CeO2(111) Surface by the Mars-van Krevelen Mechanism. J Phys Chem Lett 2013; 4:216-221. [PMID: 26291234 DOI: 10.1021/jz301778b] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
DFT+U calculations of CO oxidation by Au12 nanoclusters supported on a stepped-CeO2(111) surface show that lattice oxygen at the step edge oxidizes CO bound to Au NCs by the Mars-van Krevelen (M-vK) mechanism. We found that CO2 desorption determines the rate of CO oxidation, and the vacancy formation energy is a reactivity descriptor for CO oxidation. Our results suggest that the M-vK mechanism contributes significantly to CO oxidation activity at Au particles supported on the nano- or meso-structured CeO2 found in industrial catalysts.
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Affiliation(s)
- Hyun You Kim
- Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712-0165, United States
| | - Graeme Henkelman
- Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712-0165, United States
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128
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Mudiyanselage K, Kim HY, Senanayake SD, Baber AE, Liu P, Stacchiola D. Probing adsorption sites for CO on ceria. Phys Chem Chem Phys 2013; 15:15856-62. [DOI: 10.1039/c3cp52295d] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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129
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Campbell CT, Sellers JRV. Anchored metal nanoparticles: Effects of support and size on their energy, sintering resistance and reactivity. Faraday Discuss 2013; 162:9-30. [DOI: 10.1039/c3fd00094j] [Citation(s) in RCA: 141] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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130
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Rodriguez JA, Hanson JC, Stacchiola D, Senanayake SD. In situ/operando studies for the production of hydrogen through the water-gas shift on metal oxide catalysts. Phys Chem Chem Phys 2013; 15:12004-25. [DOI: 10.1039/c3cp50416f] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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131
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Mudiyanselage K, An W, Yang F, Liu P, Stacchiola DJ. Selective molecular adsorption in sub-nanometer cages of a Cu2O surface oxide. Phys Chem Chem Phys 2013; 15:10726-31. [DOI: 10.1039/c3cp50522g] [Citation(s) in RCA: 21] [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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132
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Song W, Jansen APJ, Hensen EJM. A computational study of the influence of the ceria surface termination on the mechanism of CO oxidation of isolated Rh atoms. Faraday Discuss 2013; 162:281-92. [DOI: 10.1039/c3fd20129e] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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133
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Baber AE, Mudiyanselage K, Senanayake SD, Beatriz-Vidal A, Luck KA, Sykes ECH, Liu P, Rodriguez JA, Stacchiola DJ. Assisted deprotonation of formic acid on Cu(111) and self-assembly of 1D chains. Phys Chem Chem Phys 2013; 15:12291-8. [DOI: 10.1039/c3cp51533h] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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134
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Surnev S, Fortunelli A, Netzer FP. Structure-property relationship and chemical aspects of oxide-metal hybrid nanostructures. Chem Rev 2012; 113:4314-72. [PMID: 23237602 DOI: 10.1021/cr300307n] [Citation(s) in RCA: 141] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Svetlozar Surnev
- Surface and Interface Physics, Institute of Physics, Karl-Franzens University, Graz A-8010 Graz, Austria
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135
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Stacchiola DJ, Senanayake SD, Liu P, Rodriguez JA. Fundamental Studies of Well-Defined Surfaces of Mixed-Metal Oxides: Special Properties of MOx/TiO2(110) {M = V, Ru, Ce, or W}. Chem Rev 2012; 113:4373-90. [DOI: 10.1021/cr300316v] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Darío J. Stacchiola
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Sanjaya D. Senanayake
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Ping Liu
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - José A. Rodriguez
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
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136
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Vidal AB, Liu P. Density functional study of water-gas shift reaction on M3O(3x)/Cu(111). Phys Chem Chem Phys 2012; 14:16626-32. [PMID: 22955873 DOI: 10.1039/c2cp42091k] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Density functional theory (DFT) was employed to study the water dissociation and water-gas shift (WGS) reaction on a series of inverse model catalysts, M(3)O(3x)/Cu(111) (M = Mg, Ti, Zr, Mo, W; x = 1, 2, 3). It has been found that the WGS reaction on Cu can be facilitated by introducing various oxides to lower the barrier of water dissociation. Accordingly, the calculated reaction energy for water dissociation was used as a scaling descriptor to screen the WGS activity of oxide-Cu model catalysts. Our calculations show that the activity towards water dissociation decreases in a sequence: Mg(3)O(3)/Cu(111) > Zr(3)O(6)/Cu(111) > Ti(3)O(6)/Cu(111) > W(3)O(9)/Cu(111), Mo(3)O(9)/Cu(111). It seems that Mg(3)O(3)/Cu(111) is the best WGS catalyst among the systems studied here, being able to dissociate water with no barrier. During the process, both Cu and oxides participate in the reaction directly. The strong M(3)O(3x)-Cu interaction is able to tune the electronic structure of M(3)O(3x) and therefore the activity towards water dissociation. Further studies of the overall WGS reaction on Mg(3)O(3)/Cu(111) show that water dissociation may not be the key step to control the WGS reaction on Mg(3)O(3)/Cu(111) and the removal of H from Mg(3)O(3) can be problematic. The strong interaction between H and O from Mg(3)O(3) blocks the O sites for further water dissociation and therefore the WGS reaction. Our study observes a very different behavior of oxide clusters in such small size from the bigger ones supported on Cu(111) and provides new insight into the rational design of the WGS catalysts.
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Affiliation(s)
- Alba B Vidal
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, USA
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137
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Bruix A, Rodriguez JA, Ramírez PJ, Senanayake SD, Evans J, Park JB, Stacchiola D, Liu P, Hrbek J, Illas F. A New Type of Strong Metal–Support Interaction and the Production of H2 through the Transformation of Water on Pt/CeO2(111) and Pt/CeOx/TiO2(110) Catalysts. J Am Chem Soc 2012; 134:8968-74. [DOI: 10.1021/ja302070k] [Citation(s) in RCA: 562] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Albert Bruix
- Departament de Química
Física and Institut de Química Teòrica i Computacional
(IQTCUB), Universitat de Barcelona, Marti
i Franques 1, 08028 Barcelona, Spain
| | - José A. Rodriguez
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973,
United States
| | - Pedro J. Ramírez
- Facultad de
Ciencias, Universidad Central de Venezuela, Caracas 1020-A, Venezuela
| | - Sanjaya D. Senanayake
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973,
United States
| | - Jaime Evans
- Facultad de
Ciencias, Universidad Central de Venezuela, Caracas 1020-A, Venezuela
| | - Joon B. Park
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973,
United States
| | - Dario Stacchiola
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973,
United States
| | - Ping Liu
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973,
United States
| | - Jan Hrbek
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973,
United States
| | - Francesc Illas
- Departament de Química
Física and Institut de Química Teòrica i Computacional
(IQTCUB), Universitat de Barcelona, Marti
i Franques 1, 08028 Barcelona, Spain
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138
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Senanayake SD, Sadowski JT, Evans J, Kundu S, Agnoli S, Yang F, Stacchiola D, Flege JI, Hrbek J, Rodriguez JA. Nanopattering in CeOx/Cu(111): A New Type of Surface Reconstruction and Enhancement of Catalytic Activity. J Phys Chem Lett 2012; 3:839-843. [PMID: 26286407 DOI: 10.1021/jz300159p] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Our results indicate that small amounts of an oxide deposited on a stable metal surface can trigger a massive surface reconstruction under reaction conditions. In low-energy electron microscopy (LEEM) experiments, no reconstruction of Cu(111) is observed after chemisorbing oxygen or after reducing O/Cu(111) in a CO atmosphere. On the other hand, LEEM images taken in situ during the reduction of CeO2/CuO1-x/Cu(111) show a complex nonuniform transformation of the surface morphology. Ceria particles act as nucleation sites for the growth of copper microterraces once CuO1-x is reduced. Can this reconstructed surface be used to enhance the catalytic activity of inverse oxide/metal catalysts? Indeed, CeOx on reconstructed Cu(111) is an extremely active catalyst for the water-gas shift process (CO + H2O → H2 + CO2), with the Cu microterraces providing very efficient sites for the dissociation of water and subsequent reaction with CO.
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Affiliation(s)
| | | | - Jaime Evans
- §Facultad de Ciencias, Universidad Central de Venezuela, Caracas, 1020-A Venezuela
| | | | | | | | | | - Jan I Flege
- ∥Institute of Solid State Physics, University of Bremen, Bremen, Germany
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139
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Matolín V, Matolínová I, Dvořák F, Johánek V, Mysliveček J, Prince K, Skála T, Stetsovych O, Tsud N, Václavů M, Šmíd B. Water interaction with CeO2(111)/Cu(111) model catalyst surface. Catal Today 2012. [DOI: 10.1016/j.cattod.2011.05.032] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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140
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Kim HY, Lee HM, Henkelman G. CO Oxidation Mechanism on CeO2-Supported Au Nanoparticles. J Am Chem Soc 2012; 134:1560-70. [DOI: 10.1021/ja207510v] [Citation(s) in RCA: 436] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hyun You Kim
- Department of Chemistry and
Biochemistry, University of Texas at Austin, Austin, Texas 78712-0165, United States
| | - Hyuck Mo Lee
- Department of Materials Science
and Engineering, KAIST, 291 Daehak-ro, Yuseong-gu,
Daejeon, Korea
| | - Graeme Henkelman
- Department of Chemistry and
Biochemistry, University of Texas at Austin, Austin, Texas 78712-0165, United States
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141
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Bharali P, Saikia P, Reddy BM. Large-scale synthesis of ceria-based nano-oxides with high CO oxidation activity. Catal Sci Technol 2012. [DOI: 10.1039/c2cy20024d] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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142
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Cámara AL, Monte M, Martínez-Arias A, Conesa JC. XPS and DRIFTS operando studies of an inverse CeO2/CuO WGS catalyst: deactivating role of interfacial carbonates in redox activity. Catal Sci Technol 2012. [DOI: 10.1039/c2cy20399e] [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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143
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Axnanda S, Zhou WP, White MG. CO oxidation on nanostructured SnOx/Pt(111) surfaces: unique properties of reduced SnOx. Phys Chem Chem Phys 2012; 14:10207-14. [DOI: 10.1039/c2cp41601h] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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144
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Kang DH, Eum MS, Lee BN, Bae TS, Lee KR, Lim HB, Hur NH. Confined Pt and CoFe2O4Nanoparticles in a Mesoporous Core/Shell Silica Microsphere and Their Catalytic Activity. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.10.3712] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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145
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Flaherty DW, Yu WY, Pozun ZD, Henkelman G, Mullins CB. Mechanism for the water–gas shift reaction on monofunctional platinum and cause of catalyst deactivation. J Catal 2011. [DOI: 10.1016/j.jcat.2011.06.024] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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146
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Yang F, Choi Y, Liu P, Stacchiola D, Hrbek J, Rodriguez JA. Identification of 5-7 defects in a copper oxide surface. J Am Chem Soc 2011; 133:11474-7. [PMID: 21714558 DOI: 10.1021/ja204652v] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A topological defect in a Cu(2)O surface oxide grown on Cu(111) has been identified. Using scanning tunneling microscopy, we observed the formation of pentagonal and heptagonal rings within the Cu(2)O surface oxide. These structures break the symmetry of the hexagonal oxide surface and are a consequence of the presence of oxygen vacancies in the Cu(2)O surface. We propose that the pentagonal and heptagonal rings are formed through the rotation of a -O-Cu-O- chain in a manner similar to the Stone-Wales transformation. The proposed transformation is supported by the results of density functional theory calculations.
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Affiliation(s)
- Fan Yang
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, USA
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147
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Affiliation(s)
- Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
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148
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149
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Liu P. Water-gas shift reaction on oxide∕Cu(111): Rational catalyst screening from density functional theory. J Chem Phys 2011; 133:204705. [PMID: 21133450 DOI: 10.1063/1.3506897] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Developing improved catalysts based on a fundamental understanding of reaction mechanism has become one of the grand challenges in catalysis. A theoretical understanding and screening the metal-oxide composite catalysts for the water-gas shift (WGS) reaction is presented here. Density functional theory was employed to identify the key step for the WGS reaction on the Au, Cu-oxide catalysts, where the calculated reaction energy for water dissociation correlates well with the experimental measured WGS activity. Accordingly, the calculated reaction energy for water dissociation was used as the scaling descriptor to screen the inverse model catalysts, oxide∕Cu(111), for the better WGS activity. Our calculations predict that the WGS activity increases in a sequence: Cu(111), ZnO∕Cu(111) < TiO(2)∕Cu(111), ZrO(2)∕Cu(111) < MoO(3)∕Cu(111). Our results imply that the high performances of Au, Cu-oxide nanocatalysts in the WGS reaction rely heavily on the direct participation of both oxide and metal sites. The degree that the oxide is reduced by Cu plays an important role in determining the WGS activity of oxide∕Cu catalysts. The reducible oxide can be transformed from the fully oxidized form to the reduced form due to the interaction with Cu and, therefore, the transfer of electron density from Cu, which helps in releasing the bottleneck water dissociation and, therefore, facilitating the WGS reaction on copper.
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Affiliation(s)
- Ping Liu
- Chemistry Department, Bldg. 555, Brookhaven National Laboratory, Upton, New York 11973, USA.
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150
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Yang F, Graciani J, Evans J, Liu P, Hrbek J, Sanz JF, Rodriguez JA. CO Oxidation on Inverse CeOx/Cu(111) Catalysts: High Catalytic Activity and Ceria-Promoted Dissociation of O2. J Am Chem Soc 2011; 133:3444-51. [DOI: 10.1021/ja1087979] [Citation(s) in RCA: 218] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Fan Yang
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Jesús Graciani
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla, E- 41012 Sevilla, Spain
| | - Jaime Evans
- Facultad de Ciencias, Universidad Central de Venezuela, Caracas 1020-A, Venezuela
| | - Ping Liu
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Jan Hrbek
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Javier Fdez. Sanz
- Departamento de Química Física, Facultad de Química, Universidad de Sevilla, E- 41012 Sevilla, Spain
| | - José A. Rodriguez
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, United States
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