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da Silva Alvim R, Borges I, Alves RMB, Capaz RB, Leitão AA. CO adsorption on MgO thin-films: formation and interaction of surface charged defects. Phys Chem Chem Phys 2023; 25:28982-28997. [PMID: 37859503 DOI: 10.1039/d3cp03320a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Two-dimensional (2D) materials formed by thin-films of metal oxides that grow on metal supports are commonly used in heterogeneous catalysis and multilayer electronic devices. Despite extensive research on these systems, the effects of charged defects at supported oxides on surface processes are still not clear. In this work, we perform spin-polarized density-functional theory (DFT) calculations to investigate formation and interaction of charged magnesium and oxygen vacancies, and Al dopants on MgO(001)/Ag(001) surface. The results show a sizable interface compressive effect that decreases the metal work function as electrons are added on the MgO surface with a magnesium vacancy. This surface displays a larger formation energy in a water environment (O-rich condition) even with additional Al-doping. Under these conditions, we found that a polar molecule such as CO is more strongly adsorbed on the low-coordination oxygen sites due to a larger contribution of the channeled electronic transport with the silver interface regardless of the surface charge. Therefore, these findings elucidate how surface intrinsic vacancies can influence or contribute to charge transfer, which allows one to explore more specific reactions at different surface topologies for more efficient catalysts for CO2 conversion.
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Affiliation(s)
- Raphael da Silva Alvim
- Departamento de Engenharia Química, Escola Politécnica, Universidade de São Paulo (USP), São Paulo, SP, 05508-900, Brazil.
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora (UFJF), Juiz de Fora, MG, 36036-330, Brazil
| | - Itamar Borges
- Departamento de Química, Instituto Militar de Engenharia (IME), Rio de Janeiro, RJ, 22290-270, Brazil
| | - Rita Maria Brito Alves
- Departamento de Engenharia Química, Escola Politécnica, Universidade de São Paulo (USP), São Paulo, SP, 05508-900, Brazil.
| | - Rodrigo B Capaz
- Instituto de Física, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-972, Brazil
- Brazilian Nanotechnology National Laboratory (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, SP, 13083-100, Brazil
| | - Alexandre Amaral Leitão
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Juiz de Fora (UFJF), Juiz de Fora, MG, 36036-330, Brazil
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Gura L, Soares EA, Paier J, Stavale F, Freund HJ. Models for Reactions in Confined Space: Can Surface Science Contribute? A Review and Perspective. Top Catal 2023. [DOI: 10.1007/s11244-023-01787-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
AbstractThis paper reports and discusses some of our recent advances in surface science research on a silica film supported on a Ru(0001) substrate. This system is unique, as the silica is bound to the metal surface by dispersive forces only, and thus opens the possibility to study reactions in the confined space between the metal substrate and the silica film, acting as a permeable membrane. We demonstrate that this system allows for detailed insights into the complexity of reactions in confined space, including phenomena due to the response of the confined space to the presence of the reactants, and direct comparison to the situation when the same reaction occurs in open space.
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Gäßler M, Stahl J, Schowalter M, Pokhrel S, Rosenauer A, Mädler L, Güttel R. The Impact of Support Material of Cobalt‐Based Catalysts Prepared by Double Flame Spray Pyrolysis on CO2 Methanation Dynamics. ChemCatChem 2022. [DOI: 10.1002/cctc.202200286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Max Gäßler
- Ulm University: Universitat Ulm Institute of Chemical Engineering GERMANY
| | - Jakob Stahl
- University of Bremen: Universitat Bremen Faculty of Production Engineering GERMANY
| | - Marco Schowalter
- University of Bremen: Universitat Bremen Institute of Solid State Physics GERMANY
| | - Suman Pokhrel
- University of Bremen: Universitat Bremen Faculty of Production Engineering GERMANY
| | - Andreas Rosenauer
- University of Bremen: Universitat Bremen Institute of Solid State Physics GERMANY
| | - Lutz Mädler
- University of Bremen: Universitat Bremen Faculty of Production Engineering GERMANY
| | - Robert Güttel
- Universitat Ulm Institute of Chemical Process Engineering Albert-Einstein-Allee 11 89081 Ulm GERMANY
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Abstract
High-efficiency utilization of CO2 facilitates the reduction of CO2 concentration in the global atmosphere and hence the alleviation of the greenhouse effect. The catalytic hydrogenation of CO2 to produce value-added chemicals exhibits attractive prospects by potentially building energy recycling loops. Particularly, methanol is one of the practically important objective products, and the catalytic hydrogenation of CO2 to synthesize methanol has been extensively studied. In this review, we focus on some basic concepts on CO2 activation, the recent research advances in the catalytic hydrogenation of CO2 to methanol, the development of high-performance catalysts, and microscopic insight into the reaction mechanisms. Finally, some thinking on the present research and possible future trend is presented.
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Sakaushi K, Kumeda T, Hammes-Schiffer S, Melander MM, Sugino O. Advances and challenges for experiment and theory for multi-electron multi-proton transfer at electrified solid–liquid interfaces. Phys Chem Chem Phys 2020; 22:19401-19442. [DOI: 10.1039/d0cp02741c] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Understanding microscopic mechanism of multi-electron multi-proton transfer reactions at complexed systems is important for advancing electrochemistry-oriented science in the 21st century.
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Affiliation(s)
- Ken Sakaushi
- Center for Green Research on Energy and Environmental Materials
- National Institute for Materials Science
- Ibaraki 305-0044
- Japan
| | - Tomoaki Kumeda
- Center for Green Research on Energy and Environmental Materials
- National Institute for Materials Science
- Ibaraki 305-0044
- Japan
| | | | - Marko M. Melander
- Nanoscience Center
- Department of Chemistry
- University of Jyväskylä
- Jyväskylä
- Finland
| | - Osamu Sugino
- The Institute of Solid State Physics
- the University of Tokyo
- Chiba 277-8581
- Japan
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Improvement of hydrogen production under solar light using cobalt (II) phosphide hydroxide co-doped g-C3N4 photocatalyst. RENDICONTI LINCEI-SCIENZE FISICHE E NATURALI 2019. [DOI: 10.1007/s12210-019-00844-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Silver halide-based composite photocatalysts: an updated account. RENDICONTI LINCEI. SCIENZE FISICHE E NATURALI 2019. [DOI: 10.1007/s12210-019-00799-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Chen BR, Crosby LA, George C, Kennedy RM, Schweitzer NM, Wen J, Van Duyne RP, Stair PC, Poeppelmeier KR, Marks LD, Bedzyk MJ. Morphology and CO Oxidation Activity of Pd Nanoparticles on SrTiO3 Nanopolyhedra. ACS Catal 2018. [DOI: 10.1021/acscatal.7b04173] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bor-Rong Chen
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Lawrence A. Crosby
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Cassandra George
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Robert M. Kennedy
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Neil M. Schweitzer
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Jianguo Wen
- Center for Nanoscale Materials, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Richard P. Van Duyne
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Peter C. Stair
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Chemical Sciences & Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Kenneth R. Poeppelmeier
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Chemical Sciences & Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Laurence D. Marks
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Michael J. Bedzyk
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, United States
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