1
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Su YQ, Qin YY, Wu T, Wu DY. Structure Sensitivity of Ceria-Supported Au Catalysts for CO Oxidation. J Catal 2022. [DOI: 10.1016/j.jcat.2022.02.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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2
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Elgayyar T, Atwi R, Tuel A, Meunier FC. Contributions and limitations of IR spectroscopy of CO adsorption to the characterization of bimetallic and nanoalloy catalysts. Catal Today 2021. [DOI: 10.1016/j.cattod.2021.01.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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RETRACTED ARTICLE: Revisiting the Evolution of
IR Spectra of CO Adsorbed on Au Nanoparticles Supported on Non-reducible
Supports. Top Catal 2020. [DOI: 10.1007/s11244-020-01372-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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4
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Chen JJ, Li XN, Chen Q, Liu QY, Jiang LX, He SG. Neutral Au 1-Doped Cluster Catalysts AuTi 2O 3-6 for CO Oxidation by O 2. J Am Chem Soc 2019; 141:2027-2034. [PMID: 30595020 DOI: 10.1021/jacs.8b11118] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Oxide supported gold catalysts (e.g., Au/TiO2) are of great significance in heterogeneous catalysis owing to their extraordinary catalytic activity. Study of heteronuclear metal oxide clusters (HMOCs, e.g., Au xTi yO z q) is an important way to uncover the molecular-level mechanisms of gold catalysis in the related heterogeneous catalytic systems. However, the current studies of HMOCs are focused on charged clusters with little attention paid to neutral species. The reactivity study of neutral HMOCs is vital to have a comprehensive understanding of heterogeneous catalysis, but it is experimentally challenging because of the difficulty of cluster ionization and detection without fragmentation. Herein, benefiting from a homemade time-of-flight mass spectrometer coupled with a vacuum ultraviolet laser system, the reactivity of neutral Au1-doped titanium oxide clusters AuTi2O3-6 in catalytic CO oxidation by O2 has been successfully identified. The mechanistic details of the catalysis have been elucidated by quantum chemistry calculations. The crucial roles of the mobile AuCO species that can facilitate not only the process of CO oxidation but also the process of O2 activation have been discovered in the cluster catalysis. The fascinating results are of substantial importance to understand the mechanisms of CO oxidation over Au/TiO2, one type of the best studied gold catalysts.
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Affiliation(s)
- Jiao-Jiao Chen
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China.,Beijing National Laboratory for Molecular Sciences , CAS Research/Education Center of Excellence in Molecular Sciences , Beijing 100190 , China
| | - Xiao-Na Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , China.,Beijing National Laboratory for Molecular Sciences , CAS Research/Education Center of Excellence in Molecular Sciences , Beijing 100190 , China
| | - Qiang Chen
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , China.,Beijing National Laboratory for Molecular Sciences , CAS Research/Education Center of Excellence in Molecular Sciences , Beijing 100190 , China
| | - Qing-Yu Liu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , China.,Beijing National Laboratory for Molecular Sciences , CAS Research/Education Center of Excellence in Molecular Sciences , Beijing 100190 , China
| | - Li-Xue Jiang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China.,Beijing National Laboratory for Molecular Sciences , CAS Research/Education Center of Excellence in Molecular Sciences , Beijing 100190 , China
| | - Sheng-Gui He
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry , Chinese Academy of Sciences , Beijing 100190 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China.,Beijing National Laboratory for Molecular Sciences , CAS Research/Education Center of Excellence in Molecular Sciences , Beijing 100190 , China
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5
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The role of electronic metal-support interactions and its temperature dependence: CO adsorption and CO oxidation on Au/TiO2 catalysts in the presence of TiO2 bulk defects. J Catal 2017. [DOI: 10.1016/j.jcat.2017.07.029] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Boronat M, Concepción P. Combined theoretical and spectroscopic mechanistic studies for improving activity and selectivity in heterogeneous catalysis. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.11.048] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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7
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Wang J, McEntee M, Tang W, Neurock M, Baddorf AP, Maksymovych P, Yates JT. Formation, Migration, and Reactivity of Au–CO Complexes on Gold Surfaces. J Am Chem Soc 2016; 138:1518-26. [DOI: 10.1021/jacs.5b09052] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jun Wang
- Center
for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Monica McEntee
- Departments
of Chemical Engineering and Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Wenjie Tang
- Departments
of Chemical Engineering and Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Matthew Neurock
- Departments
of Chemical Engineering and Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Arthur P. Baddorf
- Center
for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Petro Maksymovych
- Center
for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - John T. Yates
- Departments
of Chemical Engineering and Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
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8
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Cortes-Huerto R, Goniakowski J, Noguera C. An efficient many-body potential for the interaction of transition and noble metal nano-objects with an environment. J Chem Phys 2013; 138:244706. [DOI: 10.1063/1.4811670] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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9
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Boronat M. Theoretical tools for studying gold nanoparticles as catalysts for oxidation and hydrogenation reactions. CATALYSIS 2013. [DOI: 10.1039/9781849737203-00050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
In this contribution, the ability of small isolated gold NP to dissociate O2 and generate a reactive surface oxide layer, the nature of the new gold active sites generated, and their implication in the mechanism of alcohol oxidation to aldehydes has been analyzed from a theoretical point of view. The nature of the active sites involved in H2 dissociation and the possible ways in which Au/TiO2 catalysts can be modified in order to increase their activity toward hydrogenation of nitroaromatics without modifying their high chemoselectivity is also explored.
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Affiliation(s)
- Mercedes Boronat
- Instituto de Tecnología Química (UPV-CSIC) Av. de los Naranjos s/n, 46022, Valencia, Spain
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10
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Liu C, Tan Y, Lin S, Li H, Wu X, Li L, Pei Y, Zeng XC. CO Self-Promoting Oxidation on Nanosized Gold Clusters: Triangular Au3 Active Site and CO Induced O–O Scission. J Am Chem Soc 2013; 135:2583-95. [DOI: 10.1021/ja309460v] [Citation(s) in RCA: 164] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Chunyan Liu
- Department of Chemistry, Key Laboratory
of Environmentally
Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Hunan Province 411105, People’s
Republic of China
| | - Yingzi Tan
- Department of Chemistry, Key Laboratory
of Environmentally
Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Hunan Province 411105, People’s
Republic of China
| | - Sisi Lin
- Department of Chemistry, Key Laboratory
of Environmentally
Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Hunan Province 411105, People’s
Republic of China
| | - Hui Li
- Department of Chemistry and Nebraska
Center for Materials
and Nanoscience, University of Nebraska—Lincoln, Lincoln, Nebraska 68588, United States
| | - Xiaojun Wu
- CAS Key Laboratory of Materials
for Energy Conversion and Department
of Material Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026,
People’s Republic of China
| | - Lei Li
- Department of Chemistry and Nebraska
Center for Materials
and Nanoscience, University of Nebraska—Lincoln, Lincoln, Nebraska 68588, United States
| | - Yong Pei
- Department of Chemistry, Key Laboratory
of Environmentally
Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Hunan Province 411105, People’s
Republic of China
| | - Xiao Cheng Zeng
- Department of Chemistry and Nebraska
Center for Materials
and Nanoscience, University of Nebraska—Lincoln, Lincoln, Nebraska 68588, United States
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11
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Wu YY, Mashayekhi NA, Kung HH. Au–metal oxide support interface as catalytic active sites. Catal Sci Technol 2013. [DOI: 10.1039/c3cy00243h] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Chen J, Pidko EA, Ordomsky VV, Verhoeven T, Hensen EJM, Schouten JC, Nijhuis TA. How metallic is gold in the direct epoxidation of propene: an FTIR study. Catal Sci Technol 2013. [DOI: 10.1039/c3cy00358b] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Small MW, Sanchez SI, Marinkovic NS, Frenkel AI, Nuzzo RG. Influence of adsorbates on the electronic structure, bond strain, and thermal properties of an alumina-supported Pt catalyst. ACS NANO 2012; 6:5583-5595. [PMID: 22575058 DOI: 10.1021/nn3015322] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We describe the results of an X-ray absorption spectroscopy (XAS) study of adsorbate and temperature-dependent alterations of the atomic level structure of a prototypical, noble metal hydrogenation and reforming catalyst: ∼1.0 nm Pt clusters supported on gamma alumina (Pt/γ-Al(2)O(3)). This work demonstrates that the metal-metal (M-M) bonding in these small clusters is responsive to the presence of adsorbates, exhibiting pronounced coverage-dependent strains in the clusters' M-M bonding, with concomitant modifications of their electronic structures. Hydrogen and CO adsorbates demonstrate coverage-dependent bonding that leads to relaxation of the M-M bond strains within the clusters. These influences are partially compensated, and variably mediated, by the temperature-dependent electronic perturbations that arise from cluster-support and adsorbate-support interactions. Taken together, the data reveal a strikingly fluxional system with implications for understanding the energetics of catalysis. We estimate that a 9.1 ± 1.1 kJ/mol strain exists for these clusters under H(2) and that this strain increases to 12.8 ± 1.7 kJ/mol under CO. This change in the energy of the particle is in addition to the different heats of adsorption for each gas (64 ± 3 and 126 ± 2 kJ/mol for H(2) and CO, respectively).
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Affiliation(s)
- Matthew W Small
- School of Chemical Sciences and the Fredrick Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois, USA
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14
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Wang J, Kispersky VF, Nicholas Delgass W, Ribeiro FH. Determination of the Au active site and surface active species via operando transmission FTIR and isotopic transient experiments on 2.3wt.% Au/TiO2 for the WGS reaction. J Catal 2012. [DOI: 10.1016/j.jcat.2012.02.008] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Total CO oxidation over Fe-containing Au/HMS catalysts: Effects of gold loading and catalyst pretreatment. Catal Today 2011. [DOI: 10.1016/j.cattod.2011.02.067] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Eyrich M, Kielbassa S, Diemant T, Biskupek J, Kaiser U, Wiedwald U, Ziemann P, Bansmann J. Planar Au/TiO2 Model Catalysts: Fabrication, Characterization and Catalytic Activity. Chemphyschem 2010; 11:1430-7. [DOI: 10.1002/cphc.200900942] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Pei Y, Shao N, Gao Y, Zeng XC. Investigating active site of gold nanoparticle Au55(PPh3)12Cl6 in selective oxidation. ACS NANO 2010; 4:2009-20. [PMID: 20359242 DOI: 10.1021/nn100184m] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We present an ab initio investigation of structural, electronic, catalytic, and selective properties of the ligand-covered gold nanoparticle Au55(PPh3)12Cl6 and associated model clusters. The catalytic activity of the Au55(PPh3)12Cl6 nanoparticle in the presence of O2 stems from a combined effect of triphenylphosphine ligands and surface structure of the "magic-number" quasi-icosahedral Au55 core, which entails numerous ligand-encompassed triangle Au6 faces as the active sites. Under the Eley-Rideal mechanism, the "triangle-socket" active site not only can accommodate one pre-adsorbed O2 (which is subsequently activated to the superoxo species) with one styrene molecule at a time but also can provide spatial confinement which favors the formation of an oxametallacycle intermediate that leads to unique selectivity in styrene oxidation.
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Affiliation(s)
- Yong Pei
- Department of Chemistry and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
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18
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Artiglia L, Diemant T, Hartmann H, Bansmann J, Behm RJ, Gavioli L, Cavaliere E, Granozzi G. Stability and chemisorption properties of ultrathin TiOx/Pt(111) films and Au/TiOx/Pt(111) model catalysts in reactive atmospheres. Phys Chem Chem Phys 2010; 12:6864-74. [DOI: 10.1039/c000884b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Boronat M, Corma A. Oxygen activation on gold nanoparticles: separating the influence of particle size, particle shape and support interaction. Dalton Trans 2010; 39:8538-46. [DOI: 10.1039/c002280b] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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20
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Haider P, Urakawa A, Schmidt E, Baiker A. Selective blocking of active sites on supported gold catalysts by adsorbed thiols and its effect on the catalytic behavior: A combined experimental and theoretical study. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcata.2009.02.025] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Penkova A, Chakarova K, Laguna O, Hadjiivanov K, Saria FR, Centeno M, Odriozola J. Redox chemistry of gold in a Au/FeO /CeO2 CO oxidation catalyst. CATAL COMMUN 2009. [DOI: 10.1016/j.catcom.2009.01.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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