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Ma D, Cao Z. Electron Regulation of Single Indium Atoms at the Active Oxygen Vacancy of In 2 O 3 (110) for Production of Acetic Acid and Acetone through Direct Coupling of CH 4 with CO 2. Chem Asian J 2022; 17:e202101383. [PMID: 35088538 DOI: 10.1002/asia.202101383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/12/2022] [Indexed: 11/11/2022]
Abstract
The production of acetic acid and acetone from the direct coupling of CO2 and CH4 on the doped In2 O3 (110) surface has been studied by extensive first-principles calculations, and the Ga or Al substitution for the single In atom at the active oxygen vacancy of In2 O3 (110) can stabilize the reaction species and reduce the free energy barrier of the rate-limiting C-H activation for the conversion of CO2 and CH4 to acetic acid. Herein, the metal doping lowers the energy level of partially empty s and p orbitals of In1 at the oxygen vacancy site and manipulates its electronic properties, resulting in the activity improvement. The stable intermediate with the newly-formed CH3 COO* has the available In1 site for subsequent CH4 activation, which may initiate the direct C-C coupling of CH3 COO* and CH3 * to yield C3 species on the doped In2 O3 (110). These findings suggest that the metal doping of the active oxygen vacancy opens an avenue for the carbon-chain growth through heterogeneously catalytic coupling of CO2 and CH4 .
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Affiliation(s)
- Denghui Ma
- State Key Laboratory of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 360015, P. R. China
| | - Zexing Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, and Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 360015, P. R. China
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2
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Yin G, Bi Q, Zhao W, Xu J, Lin T, Huang F. Efficient Conversion of CO2
to Methane Photocatalyzed by Conductive Black Titania. ChemCatChem 2017. [DOI: 10.1002/cctc.201701130] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Guoheng Yin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics, Chinese Academy of Sciences; Shanghai 200050 China
- University of Chinese Academy of Sciences; Beijing 100049 P.R. China
| | - Qingyuan Bi
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics, Chinese Academy of Sciences; Shanghai 200050 China
| | - Wei Zhao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics, Chinese Academy of Sciences; Shanghai 200050 China
| | - Jijian Xu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics, Chinese Academy of Sciences; Shanghai 200050 China
| | - Tianquan Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics, Chinese Academy of Sciences; Shanghai 200050 China
| | - Fuqiang Huang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics, Chinese Academy of Sciences; Shanghai 200050 China
- Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering; Peking University; Beijing 100871 P.R. China
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3
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Wang J, Li G, Li Z, Tang C, Feng Z, An H, Liu H, Liu T, Li C. A highly selective and stable ZnO-ZrO 2 solid solution catalyst for CO 2 hydrogenation to methanol. SCIENCE ADVANCES 2017; 3:e1701290. [PMID: 28989964 PMCID: PMC5630239 DOI: 10.1126/sciadv.1701290] [Citation(s) in RCA: 346] [Impact Index Per Article: 49.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 09/15/2017] [Indexed: 05/19/2023]
Abstract
Although methanol synthesis via CO hydrogenation has been industrialized, CO2 hydrogenation to methanol still confronts great obstacles of low methanol selectivity and poor stability, particularly for supported metal catalysts under industrial conditions. We report a binary metal oxide, ZnO-ZrO2 solid solution catalyst, which can achieve methanol selectivity of up to 86 to 91% with CO2 single-pass conversion of more than 10% under reaction conditions of 5.0 MPa, 24,000 ml/(g hour), H2/CO2 = 3:1 to 4:1, 320° to 315°C. Experimental and theoretical results indicate that the synergetic effect between Zn and Zr sites results in the excellent performance. The ZnO-ZrO2 solid solution catalyst shows high stability for at least 500 hours on stream and is also resistant to sintering at higher temperatures. Moreover, no deactivation is observed in the presence of 50 ppm SO2 or H2S in the reaction stream.
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Affiliation(s)
- Jijie Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Guanna Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
- Catalysis Engineering, Department of Chemical Engineering, Delft University of Technology, Van Oder Massage 9, 2629 HZ Delft, Netherlands
| | - Zelong Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Chizhou Tang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Zhaochi Feng
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Hongyu An
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Hailong Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Taifeng Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
| | - Can Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P.R. China
- Corresponding author.
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Martin O, Mondelli C, Cervellino A, Ferri D, Curulla-Ferré D, Pérez-Ramírez J. Operando Synchrotron X-ray Powder Diffraction and Modulated-Excitation Infrared Spectroscopy Elucidate the CO2Promotion on a Commercial Methanol Synthesis Catalyst. Angew Chem Int Ed Engl 2016; 55:11031-6. [DOI: 10.1002/anie.201603204] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 06/22/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Oliver Martin
- ETH Zurich; Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering; Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Cecilia Mondelli
- ETH Zurich; Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering; Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | | | - Davide Ferri
- Paul Scherrer Institute; 5232 Villigen Switzerland
| | - Daniel Curulla-Ferré
- Total Research & Technology Feluy, Zone Industrielle Feluy C; 7181 Seneffe Belgium
| | - Javier Pérez-Ramírez
- ETH Zurich; Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering; Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
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6
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Martin O, Mondelli C, Cervellino A, Ferri D, Curulla-Ferré D, Pérez-Ramírez J. Operando Synchrotron X-ray Powder Diffraction and Modulated-Excitation Infrared Spectroscopy Elucidate the CO2Promotion on a Commercial Methanol Synthesis Catalyst. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603204] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Oliver Martin
- ETH Zurich; Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering; Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - Cecilia Mondelli
- ETH Zurich; Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering; Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | | | - Davide Ferri
- Paul Scherrer Institute; 5232 Villigen Switzerland
| | - Daniel Curulla-Ferré
- Total Research & Technology Feluy, Zone Industrielle Feluy C; 7181 Seneffe Belgium
| | - Javier Pérez-Ramírez
- ETH Zurich; Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering; Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
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7
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Hartadi Y, Widmann D, Behm RJ. CO2 hydrogenation to methanol on supported Au catalysts under moderate reaction conditions: support and particle size effects. CHEMSUSCHEM 2015; 8:456-465. [PMID: 25339625 DOI: 10.1002/cssc.201402645] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Indexed: 06/04/2023]
Abstract
The potential of metal oxide supported Au catalysts for the formation of methanol from CO2 and H2 under conditions favorable for decentralized and local conversion, which could be concepts for chemical energy storage, was investigated. Significant differences in the catalytic activity and selectivity of Au/Al2 O3 , Au/TiO2 , AuZnO, and Au/ZrO2 catalysts for methanol formation under moderate reaction conditions at a pressure of 5 bar and temperatures between 220 and 240 °C demonstrate pronounced support effects. A high selectivity (>50 %) for methanol formation was obtained only for Au/ZnO. Furthermore, measurements on Au/ZnO samples with different Au particle sizes reveal distinct Au particle size effects: although the activity increases strongly with the decreasing particle size, the selectivity decreases. The consequences of these findings for the reaction mechanism and for the potential of Au/ZnO catalysts for chemical energy storage and a "green" methanol technology are discussed.
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Affiliation(s)
- Yeusy Hartadi
- Institute of Surface Chemistry and Catalysis, Ulm University, 89081 Ulm (Germany), Fax: (+49) 731-502-5452 www.uni-ulm.de/iok
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Dutta G, Sokol AA, Catlow CRA, Keal TW, Sherwood P. Activation of Carbon Dioxide over Zinc Oxide by Localised Electrons. Chemphyschem 2012; 13:3453-6. [DOI: 10.1002/cphc.201200517] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Indexed: 11/07/2022]
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9
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Wang X, Qi G, Xu J, Li B, Wang C, Deng F. NMR-Spectroscopic Evidence of Intermediate-Dependent Pathways for Acetic Acid Formation from Methane and Carbon Monoxide over a ZnZSM-5 Zeolite Catalyst. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201108634] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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10
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Wang X, Qi G, Xu J, Li B, Wang C, Deng F. NMR-Spectroscopic Evidence of Intermediate-Dependent Pathways for Acetic Acid Formation from Methane and Carbon Monoxide over a ZnZSM-5 Zeolite Catalyst. Angew Chem Int Ed Engl 2012; 51:3850-3. [DOI: 10.1002/anie.201108634] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Revised: 01/13/2012] [Indexed: 11/09/2022]
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11
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Zeng JH, Jin BB, Wang YF. Facet enhanced photocatalytic effect with uniform single-crystalline zinc oxide nanodisks. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.02.082] [Citation(s) in RCA: 131] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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12
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Zhang Y, Lin H. Flexible-Boundary Quantum-Mechanical/Molecular-Mechanical Calculations: Partial Charge Transfer between the Quantum-Mechanical and Molecular-Mechanical Subsystems. J Chem Theory Comput 2008; 4:414-25. [DOI: 10.1021/ct700296x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yan Zhang
- Chemistry Department, University of Colorado Denver, Denver, Colorado 80217-3364
| | - Hai Lin
- Chemistry Department, University of Colorado Denver, Denver, Colorado 80217-3364
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13
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Kovácik R, Meyer B, Marx D. F centers versus dimer vacancies on ZnO surfaces: characterization by STM and STS calculations. Angew Chem Int Ed Engl 2007; 46:4894-7. [PMID: 17523200 DOI: 10.1002/anie.200604399] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Roman Kovácik
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany
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14
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Kováčik R, Meyer B, Marx D. F-Zentren versus Dimerleerstellen auf ZnO-Oberflächen: Charakterisierung durch STM- und STS-Rechnungen. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604399] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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Zhang Y, Lin H, Truhlar DG. Self-Consistent Polarization of the Boundary in the Redistributed Charge and Dipole Scheme for Combined Quantum-Mechanical and Molecular-Mechanical Calculations. J Chem Theory Comput 2007; 3:1378-98. [DOI: 10.1021/ct7000107] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yan Zhang
- Chemistry Department, University of Colorado at Denver and Health Sciences Center, Denver, Colorado 80217-3364, and Chemistry Department and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455-0431
| | - Hai Lin
- Chemistry Department, University of Colorado at Denver and Health Sciences Center, Denver, Colorado 80217-3364, and Chemistry Department and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455-0431
| | - Donald G. Truhlar
- Chemistry Department, University of Colorado at Denver and Health Sciences Center, Denver, Colorado 80217-3364, and Chemistry Department and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455-0431
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16
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Rohe B, Weiss R, Vukojević S, Baltes C, Muhler M, Tausch M, Epple M. CuO/ZnO Nanoparticles in a Matrix of Amorphous Silica as High-Surface Precursors for Methanol Synthesis. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200601084] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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Sokol AA, French SA, Bromley ST, Catlow RA, van Dam HJJ, Sherwood P. Point defects in ZnO. Faraday Discuss 2007; 134:267-82; discussion 315-29, 415-9. [PMID: 17326573 DOI: 10.1039/b607406e] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have investigated intrinsic point defects in ZnO and extended this study to Li, Cu and Al impurity centres. Atomic and electronic structures as well as defect energies have been obtained for the main oxidation states of all defects using our embedded cluster hybrid quantum mechanical/molecular mechanical approach to the treatment of localised states in ionic solids. With these calculations we were able to explain the nature of a number of experimentally observed phenomena. We show that in zinc excess materials the energetics of zinc interstitial are very similar to those for oxygen vacancy formation. Our results also suggest assignments for a number of bands observed in photoluminescence and other spectroscopic studies of the material.
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Affiliation(s)
- Alexey A Sokol
- The Royal Institution of Great Britain, 21 Albemarle Street, London, UK.
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18
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Kornherr A, Nauer GE, Sokol AA, French SA, Catlow CRA, Zifferer G. Adsorption of organosilanes at a Zn-terminated ZnO (0001) surface: molecular dynamics study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:8036-42. [PMID: 16952238 DOI: 10.1021/la0604432] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Four different organosilanes (octyltrihydroxysilane, butyltrihydroxysilane, aminopropyltrihydroxysilane, and thiolpropyltrihydroxysilane) adsorbed at a reconstructed Zn-terminated polar ZnO (0001) surface are studied via constant temperature (298 K) molecular dynamics simulations. Both single adsorbed silane molecules as well as adsorbed silane layers are modeled, and the energy, distance, orientation, and alignment of these adsorbates are analyzed. The adsorbed silane molecules exhibit behavior depending on the chemical nature of their tail (nonpolar or polar) as well as on the silane concentration at the solid surface (single adsorption or silane layer). In contrast to the O-terminated ZnO surface studied previously, now adsorption can only occur at the vacancies of this reconstructed crystal surface, thus leading to an arched structure of the liquid phase near the crystal surface. Nevertheless, both nonpolar and polar single adsorbed silanes show a similar orientation and alignment at the surface (orthogonal in the former, parallel in the latter case) as for the O-terminated ZnO surface, although the interaction energy with the surface is considerably increased for nonpolar silanes while it is nearly unaffected for the polar ones. For adsorbed silanes within silane layers, the difference to single adsorbed silanes depends on the polarity of the tail: nonpolar silanes again show an orthogonal alignment, while polar silanes exhibit two different orientations at the solid surface-a head and a tail down configuration. This leads to two completely different but nevertheless stable orientations of these silanes at the Zn-terminated ZnO surface.
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Affiliation(s)
- Andreas Kornherr
- Institute of Physical Chemistry, University of Vienna, Währinger Strasse 42, A-1090 Wien, Austria.
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20
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Wang J, Burghaus U. Adsorption dynamics of CO2 on Zn-ZnO(0001): a molecular beam study. J Chem Phys 2006; 122:44705. [PMID: 15740281 DOI: 10.1063/1.1834490] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Presented are initial S(0) and coverage Theta dependent, S(Theta), adsorption probability measurements, respectively, of CO(2) adsorption on the polar Zn-terminated surface of ZnO, parametric in the impact energy E(i), the surface temperature T(s), the impact angle alpha(i), varied along the [001] azimuth, the CO(2) flux, and the density of defects, chi(Ar(+)), as varied by rare gas ion sputtering. S(0) decreases linearly from 0.72 to 0.25 within E(i)=0.12-1.33 eV and is independent of T(s). Above E(i)=0.56 eV, S(0) decreases by approximately 0.2 with increasing alpha(i). The shape of S(Theta) curves is consistent with precursor-mediated adsorption (Kisliuk shape, i.e., S approximately const) for low E(i); above E(i)=0.56 eV, however, a turnover to adsorbate-assisted adsorption (S increases with Theta) has been observed. The initial slope of S(Theta) curves decreases thereby with increasing alpha(i), chi(Ar(+)), and T(s), i.e., the adsorbate-assisted adsorption is most distinct for normal impact on the pristine surface at low T(s) and is independent of the CO(2) flux. The S(Theta) curves have been parametrized by analytic precursor models and Monte Carlo simulations have been conducted as well. The temperature dependence of the saturation coverage shows two structures which could be assigned to adsorption on pristine and intrinsic defect sites, respectively, in agreement with a prior thermal desorption spectroscopy study. The heat of adsorption E(d) for the pristine sites amounts to 34.0-5.4Theta, whereas for adsorption on the intrinsic defect sites E(d) of approximately 43.6 kJ/mol could be estimated. Thus, a kinetic structure-activity relationship was present.
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Affiliation(s)
- J Wang
- Department of Chemistry, North Dakota State University, Fargo, ND 58105, USA
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21
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Effect of oxygen vacancy sites on CO2 adsorption dynamics: The case of rutile (1×1)-TiO2 (110). Chem Phys Lett 2006. [DOI: 10.1016/j.cplett.2006.03.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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Polarz S, Strunk J, Ischenko V, van den Berg MWE, Hinrichsen O, Muhler M, Driess M. Über den Einfluss von Sauerstoffdefektstellen auf die katalytische Aktivität von Zinkoxid. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200503068] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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23
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Polarz S, Strunk J, Ischenko V, van den Berg MWE, Hinrichsen O, Muhler M, Driess M. On the Role of Oxygen Defects in the Catalytic Performance of Zinc Oxide. Angew Chem Int Ed Engl 2006; 45:2965-9. [PMID: 16568478 DOI: 10.1002/anie.200503068] [Citation(s) in RCA: 145] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sebastian Polarz
- Technical University Berlin, Institute of Chemistry, Strasse des 17. Juni 135, 10623 Berlin, Germany.
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Wang J, Funk S, Burghaus U. Adsorption dynamics of CO2 on copper-precovered ZnO(0001)–Zn: A molecular-beam scattering and thermal-desorption spectroscopy study. J Chem Phys 2005; 123:204710. [PMID: 16351296 DOI: 10.1063/1.2126668] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Initial, S(0), as well as coverage-dependent adsorption probability measurements, S(Theta), have been conducted at normal impact angle and as a function of the impact energy of CO(2), E(i), adsorption temperature, T(s), and copper precoverage, Theta(Cu) (at 300 K). S(0), which decreased from approximately 0.4 exponentially to approximately 0.05 with E(i) was independent of Theta(Cu). Astonishingly, S(0) for Cu on ZnO(0001)-Zn is smaller than for the clean support which indicates a chemical modification of the support by the Cu deposits. S(Theta) curves consist of two regimes, a Kisliuk-type and Langmuirian-type section. The first is consistent with capture zone models; the second may indicate direct adsorption of CO(2) on the Cu cluster. The thermal-desorption (TDS) curves for Cu on ZnO(0001)-Zn consist of two structures with binding energies of 26 and approximately 40 kJmol (nu=1 x 10(13) ls). The TDS results indicate that CO(2) populates predominantly the Cu deposits and the rim along the Cu nanoparticles. No indications for CO(2) dissociation could be obtained with Auger electron spectroscopy.
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Affiliation(s)
- J Wang
- Department of Chemistry, Biochemistry, and Molecular Biology, North Dakota State University, Fargo, ND 58102, USA
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26
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Wang J, Funk S, Burghaus U. Indications for Metal-support Interactions: The Case of CO2Adsorption on Cu/ZnO(0001). Catal Letters 2005. [DOI: 10.1007/s10562-005-7157-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kurtz M, Strunk J, Hinrichsen O, Muhler M, Fink K, Meyer B, Wöll C. Active Sites on Oxide Surfaces: ZnO‐Catalyzed Synthesis of Methanol from CO and H
2. Angew Chem Int Ed Engl 2005; 44:2790-2794. [PMID: 15806538 DOI: 10.1002/anie.200462374] [Citation(s) in RCA: 176] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Melanie Kurtz
- Lehrstuhl für Technische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany, Fax: (+49) 234-32-14115
| | - Jennifer Strunk
- Lehrstuhl für Technische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany, Fax: (+49) 234-32-14115
| | - Olaf Hinrichsen
- Lehrstuhl für Technische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany, Fax: (+49) 234-32-14115
| | - Martin Muhler
- Lehrstuhl für Technische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany, Fax: (+49) 234-32-14115
| | - Karin Fink
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany, Fax: (+49) 234-32-14045
| | - Bernd Meyer
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany, Fax: (+49) 234-32-14045
| | - Christof Wöll
- Lehrstuhl für Physikalische Chemie I, Ruhr-Universität Bochum, 44780 Bochum, Germany
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Kurtz M, Strunk J, Hinrichsen O, Muhler M, Fink K, Meyer B, Wöll C. Aktive Zentren an Oxidoberflächen: Die ZnO-katalysierte Methanolsynthese aus CO und H2. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200462374] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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30
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Phala NS, Klatt G, van Steen E, French SA, Sokol AA, Catlow CRA. The nature of the oxidation states of gold on ZnO. Phys Chem Chem Phys 2005; 7:2440-5. [PMID: 15962027 DOI: 10.1039/b501266j] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interaction between gold in the 0, i, ii and iii oxidation states and the zinc-terminated ZnO(0001) surface is studied via the QM/MM electronic embedding method using density functional theory. The surface sites considered are the vacant zinc interstitial surface site (VZISS) and the bulk-terminated island site (BTIS). We find that on the VZISS, only Au(0) and Au(i) are stable oxidation states. However, all clusters of i to iii oxidation states are stable as substitutionals for Zn2+ in the bulk terminated island site. Au(OH)(x) complexes (x= 1-3) can adsorb exothermically onto the VZISS, indicating that higher oxidation states of gold can be stabilised at this site in the presence of hydroxyl groups. CO is used as a probe molecule to study the reactivity of Au in different oxidation states in VZISS and BTIS. In all cases, we find that the strongest binding of CO is to surface Au(i). Furthermore, CO binding onto Au(0) is stronger when the gold atom is adsorbed onto the VZISS compared to CO binding onto a gas phase neutral gold atom. These results indicate that the nature of the oxidation states of Au on ZnO(0001) will depend on the type of adsorption site. The role of ZnO in Au/ZnO catalysts is not, therefore, merely to disperse gold atoms/particles, but to also modify their electronic properties.
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Affiliation(s)
- N S Phala
- Catalysis Research Unit, Department of Chemical Engineering, University of Cape Town, Private Bag, Rondebosch, SA
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French S, Sokol A, To J, Catlow C, Phala N, Klatt G, van Steen E. Active sites for heterogeneous catalysis by functionalisation of internal and external surfaces. Catal Today 2004. [DOI: 10.1016/j.cattod.2004.06.129] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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French S, Sokol A, To J, Catlow C, Phala N, Klatt G, van Steen E. Active sites for heterogeneous catalysis by functionalisation of internal and external surfaces. Catal Today 2004. [DOI: 10.1016/j.cattod.2004.06.129 10.1016/j.cattod.2004.06.129] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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33
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Kornherr A, French SA, Sokol AA, Catlow CA, Hansal S, Hansal WE, Besenhard JO, Kronberger H, Nauer GE, Zifferer G. Interaction of adsorbed organosilanes with polar zinc oxide surfaces: a molecular dynamics study comparing two models for the metal oxide surface. Chem Phys Lett 2004. [DOI: 10.1016/j.cplett.2004.06.019] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Design of new catalysts for ecological high-quality transportation fuels by combinatorial computational chemistry and tight-binding quantum chemical molecular dynamics approaches. Catal Today 2004. [DOI: 10.1016/j.cattod.2004.03.055] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Herschend B, Baudin M, Hermansson K. A combined molecular dynamics+quantum mechanics method for investigation of dynamic effects on local surface structures. J Chem Phys 2004; 120:4939-48. [PMID: 15267356 DOI: 10.1063/1.1635802] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A combined molecular dynamics (MD)+quantum mechanics (QM) method for studying processes on ionic surfaces is presented. Through the combination of classical MD and ab initio embedded-cluster calculations, this method allows the modeling of surface processes involving both the structural and dynamic features of the substrate, even for large-scale systems. The embedding approach used to link the information from the MD simulation to the cluster calculation is presented, and rigorous tests have been carried out to ensure the feasibility of the method. The electrostatic potential and electron density resulting from our embedded-cluster model have been compared with periodic slab results, and confirm the satisfying quality of our embedding scheme as well as the importance of applying embedding in our combined MD+QM approach. We show that a highly accurate representation of the Madelung potential becomes a prerequisite when the embedded-cluster approach is applied to temperature-distorted surface snapshots from the MD simulation.
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Affiliation(s)
- Bjorn Herschend
- Department of Materials Chemistry, The Angstrom Laboratory, Uppsala University, Box 538, S-751 21 Uppsala, Sweden
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Bromley ST, French SA, Sokol AA, Catlow CRA, Sherwood P. Metal Cluster Support Interactions in the Cu/ZnO System: A QM/MM Study. J Phys Chem B 2003. [DOI: 10.1021/jp0223307 10.1021/jp0223307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- S. T. Bromley
- Davy-Faraday Research Laboratory, The Royal Institution of Great Britain, 21 Albemarle Street, London W1S 4BS, U.K., and CLRC, Daresbury Laboratory, Warrington WA4 4AD, U.K
| | - S. A. French
- Davy-Faraday Research Laboratory, The Royal Institution of Great Britain, 21 Albemarle Street, London W1S 4BS, U.K., and CLRC, Daresbury Laboratory, Warrington WA4 4AD, U.K
| | - A. A. Sokol
- Davy-Faraday Research Laboratory, The Royal Institution of Great Britain, 21 Albemarle Street, London W1S 4BS, U.K., and CLRC, Daresbury Laboratory, Warrington WA4 4AD, U.K
| | - C. R. A. Catlow
- Davy-Faraday Research Laboratory, The Royal Institution of Great Britain, 21 Albemarle Street, London W1S 4BS, U.K., and CLRC, Daresbury Laboratory, Warrington WA4 4AD, U.K
| | - P. Sherwood
- Davy-Faraday Research Laboratory, The Royal Institution of Great Britain, 21 Albemarle Street, London W1S 4BS, U.K., and CLRC, Daresbury Laboratory, Warrington WA4 4AD, U.K
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Bromley ST, French SA, Sokol AA, Catlow CRA, Sherwood P. Metal Cluster Support Interactions in the Cu/ZnO System: A QM/MM Study. J Phys Chem B 2003. [DOI: 10.1021/jp0223307] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- S. T. Bromley
- Davy-Faraday Research Laboratory, The Royal Institution of Great Britain, 21 Albemarle Street, London W1S 4BS, U.K., and CLRC, Daresbury Laboratory, Warrington WA4 4AD, U.K
| | - S. A. French
- Davy-Faraday Research Laboratory, The Royal Institution of Great Britain, 21 Albemarle Street, London W1S 4BS, U.K., and CLRC, Daresbury Laboratory, Warrington WA4 4AD, U.K
| | - A. A. Sokol
- Davy-Faraday Research Laboratory, The Royal Institution of Great Britain, 21 Albemarle Street, London W1S 4BS, U.K., and CLRC, Daresbury Laboratory, Warrington WA4 4AD, U.K
| | - C. R. A. Catlow
- Davy-Faraday Research Laboratory, The Royal Institution of Great Britain, 21 Albemarle Street, London W1S 4BS, U.K., and CLRC, Daresbury Laboratory, Warrington WA4 4AD, U.K
| | - P. Sherwood
- Davy-Faraday Research Laboratory, The Royal Institution of Great Britain, 21 Albemarle Street, London W1S 4BS, U.K., and CLRC, Daresbury Laboratory, Warrington WA4 4AD, U.K
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Wilmer H, Kurtz M, Klementiev KV, Tkachenko OP, Grünert W, Hinrichsen O, Birkner A, Rabe S, Merz K, Driess M, Wöll C, Muhler M. Methanol synthesis over ZnO: A structure-sensitive reaction? Phys Chem Chem Phys 2003. [DOI: 10.1039/b304425d] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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