301
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Bulushev DA, Zacharska M, Lisitsyn AS, Podyacheva OY, Hage FS, Ramasse QM, Bangert U, Bulusheva LG. Single Atoms of Pt-Group Metals Stabilized by N-Doped Carbon Nanofibers for Efficient Hydrogen Production from Formic Acid. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00476] [Citation(s) in RCA: 217] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dmitri A. Bulushev
- Boreskov Institute
of Catalysis, SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
- Nikolaev Institute of
Inorganic Chemistry, SB RAS, 630090 Novosibirsk, Russia
| | - Monika Zacharska
- Chemical & Environmental Sciences Department, University of Limerick, Limerick, Ireland
- Materials & Surface Science Institute, University of Limerick, Limerick, Ireland
| | | | - Olga Yu. Podyacheva
- Boreskov Institute
of Catalysis, SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Fredrik S. Hage
- SuperSTEM Laboratory,
SciTech Daresbury Campus, Daresbury WA4 4AD, United Kingdom
| | - Quentin M. Ramasse
- SuperSTEM Laboratory,
SciTech Daresbury Campus, Daresbury WA4 4AD, United Kingdom
| | - Ursel Bangert
- Materials & Surface Science Institute, University of Limerick, Limerick, Ireland
| | - Lyubov G. Bulusheva
- Novosibirsk State University, 630090 Novosibirsk, Russia
- Nikolaev Institute of
Inorganic Chemistry, SB RAS, 630090 Novosibirsk, Russia
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302
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Choi CH, Kim M, Kwon HC, Cho SJ, Yun S, Kim HT, Mayrhofer KJJ, Kim H, Choi M. Tuning selectivity of electrochemical reactions by atomically dispersed platinum catalyst. Nat Commun 2016; 7:10922. [PMID: 26952517 PMCID: PMC4786782 DOI: 10.1038/ncomms10922] [Citation(s) in RCA: 357] [Impact Index Per Article: 44.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 02/02/2016] [Indexed: 12/22/2022] Open
Abstract
Maximum atom efficiency as well as distinct chemoselectivity is expected for electrocatalysis on atomically dispersed (or single site) metal centres, but its realization remains challenging so far, because carbon, as the most widely used electrocatalyst support, cannot effectively stabilize them. Here we report that a sulfur-doped zeolite-templated carbon, simultaneously exhibiting large sulfur content (17 wt% S), as well as a unique carbon structure (that is, highly curved three-dimensional networks of graphene nanoribbons), can stabilize a relatively high loading of platinum (5 wt%) in the form of highly dispersed species including site isolated atoms. In the oxygen reduction reaction, this catalyst does not follow a conventional four-electron pathway producing H2O, but selectively produces H2O2 even over extended times without significant degradation of the activity. Thus, this approach constitutes a potentially promising route for producing important fine chemical H2O2, and also offers opportunities for tuning the selectivity of other electrochemical reactions on various metal catalysts. Atomically dispersed metal catalysts display high atom efficiency for electrocatalytic processes. Here, the authors report that sulfur-doped zeolite-templated carbon stabilizes highly dispersed platinum species, predominantly as single-atom centres, and probe its oxygen reduction selectivity.
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Affiliation(s)
- Chang Hyuck Choi
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea.,Department of Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Strasse 1, 40237 Düsseldorf, Germany
| | - Minho Kim
- Graduate School of EEWS, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
| | - Han Chang Kwon
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
| | - Sung June Cho
- Department of Applied Chemical Engineering, Chonnam National University, Yongbong 300, Buk-gu, Gwangju 500-757, Korea
| | - Seongho Yun
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
| | - Hee-Tak Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
| | - Karl J J Mayrhofer
- Department of Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Strasse 1, 40237 Düsseldorf, Germany.,Forschungszentrum Jülich, 'Helmholtz-Institut Erlangen-Nürnberg' (IEK 11), Nägelsbachstrasse 49b, 91052 Erlangen, Germany
| | - Hyungjun Kim
- Graduate School of EEWS, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
| | - Minkee Choi
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea
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303
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Li Q, Qiao L, Chen R, Ma Z, Si R, Yao Y, Wu K. Carbon monoxide oxidation catalysed by defective palladium chloride: DFT calculations, EXAFS, and in situ DRIRS measurements. Phys Chem Chem Phys 2016; 18:2784-91. [PMID: 26725777 DOI: 10.1039/c5cp07309j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We examined the potential catalytic role of the palladium chloride catalyst in CO oxidation using density functional theory and experimental investigations. The active plane of the palladium chloride catalyst is identified as (140). We found that the defective PdCl2(140) surface is able to facilitate the activation of O2 and subsequently promote the oxidation of CO. The most significant reaction channel, the Eley-Rideal mechanism (MER1), proceeds first by a peroxo-type (OOCO) intermediate formation, second by O adsorption with the first CO2 release, then by the second CO attraction and the second CO2 formation, and finally by the second CO2 desorption and restoration of the defective PdCl2(140) surface. The rate-determining step is the formation of the second CO2 in the whole catalytic cycle. Compared to the previously reported catalytic systems, the reaction activation barrier (0.54 eV) of CO oxidation in the PdCl2 catalyst is low, indicating PdCl2 as a potential high-performance catalyst for CO oxidation. The present results enrich our understanding of CO oxidation of Pd-based catalysts and provide a basis for fabricating Pd-based catalysts with high activity.
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Affiliation(s)
- Qiaohong Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China.
| | - Luyang Qiao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China.
| | - Ruiping Chen
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China.
| | - Zuju Ma
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China.
| | - Rui Si
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai Synchrotron Radiation Facility, Shanghai 201204, P. R. China
| | - Yuangen Yao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China.
| | - Kechen Wu
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China.
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304
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Guan H, Lin J, Qiao B, Yang X, Li L, Miao S, Liu J, Wang A, Wang X, Zhang T. Catalytically Active Rh Sub-Nanoclusters on TiO2 for CO Oxidation at Cryogenic Temperatures. Angew Chem Int Ed Engl 2016; 55:2820-4. [PMID: 26797803 DOI: 10.1002/anie.201510643] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Indexed: 11/10/2022]
Abstract
The discovery that gold catalysts could be active for CO oxidation at cryogenic temperatures has ignited much excitement in nanocatalysis. Whether the alternative Pt group metal (PGM) catalysts can exhibit such high performance is an interesting research issue. So far, no PGM catalyst shows activity for CO oxidation at cryogenic temperatures. In this work, we report a sub-nano Rh/TiO2 catalyst that can completely convert CO at 223 K. This catalyst exhibits at least three orders of magnitude higher turnover frequency (TOF) than the best Rh-based catalysts and comparable to the well-known Au/TiO2 for CO oxidation. The specific size range of 0.4-0.8 nm Rh clusters is critical to the facile activation of O2 over the Rh-TiO2 interface in a form of Rh-O-O-Ti (superoxide). This superoxide is ready to react with the CO adsorbed on TiO2 sites at cryogenic temperatures.
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Affiliation(s)
- Hongling Guan
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jian Lin
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Botao Qiao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Xiaofeng Yang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Lin Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Shu Miao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Jingyue Liu
- Department of Physics, Arizona State University, Tempe, AZ, 85287, USA
| | - Aiqin Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Xiaodong Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
| | - Tao Zhang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
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305
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Guan H, Lin J, Qiao B, Yang X, Li L, Miao S, Liu J, Wang A, Wang X, Zhang T. Catalytically Active Rh Sub-Nanoclusters on TiO2
for CO Oxidation at Cryogenic Temperatures. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510643] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hongling Guan
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Jian Lin
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
| | - Botao Qiao
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
| | - Xiaofeng Yang
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
| | - Lin Li
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
| | - Shu Miao
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
| | - Jingyue Liu
- Department of Physics; Arizona State University; Tempe AZ 85287 USA
| | - Aiqin Wang
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
| | - Xiaodong Wang
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
| | - Tao Zhang
- State Key Laboratory of Catalysis; Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 China
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306
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Guarnizo A, Angurell I, Muller G, Llorca J, Seco M, Rossell O, Rossell MD. Highly water-dispersible magnetite-supported Pd nanoparticles and single atoms as excellent catalysts for Suzuki and hydrogenation reactions. RSC Adv 2016. [DOI: 10.1039/c6ra14257e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The linker dpa enables the deposition of palladium on magnetite nanoparticles that show excellent catalytic behavior in water or water/ethanol solvents.
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Affiliation(s)
- A. Guarnizo
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - I. Angurell
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - G. Muller
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - J. Llorca
- Institut de Tècniques Energètiques i Centre de Recerca en Nanoenginyeria
- Universitat Politècnica de Catalunya
- 08028 Barcelona
- Spain
| | - M. Seco
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - O. Rossell
- Departament de Química Inorgànica i Orgànica
- Secció de Química Inorgànica
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - M. D. Rossell
- Electron Microscopy Center
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- 8600 Dübendorf
- Switzerland
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307
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Peng H, Xu J, Tian J, Liu Y, He Y, Tan J, Xu X, Liu W, Zhang N, Wang X. Mesoporous Y2Sn2O7 pyrochlore with exposed (111) facets: an active and stable catalyst for CO oxidation. RSC Adv 2016. [DOI: 10.1039/c6ra11826g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Mesoporous Y2Sn2O7 pyrochlore with exposed (111) facets was successfully synthesized via a simple hydrothermal method and showed superior catalytic performance for CO oxidation.
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308
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Figueroba A, Kovács G, Bruix A, Neyman KM. Towards stable single-atom catalysts: strong binding of atomically dispersed transition metals on the surface of nanostructured ceria. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00294c] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Surface oxygen sites on CeO2 nanostructures are able to bind atoms of various transition metals strong enough to prevent their sintering. This finding opens a knowledge-driven way to prepare stable single-atom catalysts with maximum metal efficiency.
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Affiliation(s)
- Alberto Figueroba
- Departament de Química Física & Institut de Química Teòrica i Computacional
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Gábor Kovács
- Departament de Química Física & Institut de Química Teòrica i Computacional
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Albert Bruix
- Interdisciplinary Nanoscience Center (iNANO) and Department of Physics and Astronomy
- Aarhus University
- DK-8000 Aarhus C
- Denmark
| | - Konstantin M. Neyman
- Departament de Química Física & Institut de Química Teòrica i Computacional
- Universitat de Barcelona
- 08028 Barcelona
- Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA)
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309
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Rossell MD, Caparrós FJ, Angurell I, Muller G, Llorca J, Seco M, Rossell O. Magnetite-supported palladium single-atoms do not catalyse the hydrogenation of alkenes but small clusters do. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00596a] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pd clusters of low atomicity supported on magnetite nanoparticles are extremely active for the hydrogenation of styrene, overcoming the best reported TOFs.
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Affiliation(s)
- Marta D. Rossell
- Electron Microscopy Center
- Empa
- Swiss Federal Laboratories for Materials Science and Technology
- 8600 Dübendorf
- Switzerland
| | | | - Inmaculada Angurell
- Departament de Química Inorgànica
- Universitat de Barcelona (UB)
- 08028 Barcelona
- Spain
| | - Guillermo Muller
- Departament de Química Inorgànica
- Universitat de Barcelona (UB)
- 08028 Barcelona
- Spain
| | - Jordi Llorca
- Institut de Tècniques Energètiques i Centre de Recerca en Nanoenginyeria
- Universitat Politècnica de Catalunya (UPC)
- 08028 Barcelona
- Spain
| | - Miquel Seco
- Departament de Química Inorgànica
- Universitat de Barcelona (UB)
- 08028 Barcelona
- Spain
| | - Oriol Rossell
- Departament de Química Inorgànica
- Universitat de Barcelona (UB)
- 08028 Barcelona
- Spain
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310
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Esrafili MD, Saeidi N, Nematollahi P. The healing of B- or N-vacancy defective BNNTs by using CO molecule: a DFT study. NEW J CHEM 2016. [DOI: 10.1039/c6nj00921b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Boron or nitrogen vacancies of BNNTs can be effectively healed by CO at ambient temperature.
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Affiliation(s)
- Mehdi D. Esrafili
- Laboratory of Theoretical Chemistry
- Department of Chemistry
- University of Maragheh
- Maragheh
- Iran
| | - Nasibeh Saeidi
- Laboratory of Theoretical Chemistry
- Department of Chemistry
- University of Maragheh
- Maragheh
- Iran
| | - Parisa Nematollahi
- Laboratory of Theoretical Chemistry
- Department of Chemistry
- University of Maragheh
- Maragheh
- Iran
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311
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An W, Liu P. The complex behavior of the Pd7 cluster supported on TiO2(110) during CO oxidation: adsorbate-driven promoting effect. Phys Chem Chem Phys 2016; 18:30899-30902. [DOI: 10.1039/c6cp04734c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The CO saturation-driven 3D to 2D structural transformation of the Pd7 cluster supported on TiO2(110) promotes CO oxidation activity via bifunctional synergy of interfacial sites.
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Affiliation(s)
- Wei An
- College of Chemistry and Chemical Engineering
- Shanghai University of Engineering Science
- Shanghai 201620
- China
| | - Ping Liu
- Chemistry Department
- Brookhaven National Laboratory
- Upton
- USA
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312
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Bulushev DA, Zacharska M, Shlyakhova EV, Chuvilin AL, Guo Y, Beloshapkin S, Okotrub AV, Bulusheva LG. Single Isolated Pd2+ Cations Supported on N-Doped Carbon as Active Sites for Hydrogen Production from Formic Acid Decomposition. ACS Catal 2015. [DOI: 10.1021/acscatal.5b02381] [Citation(s) in RCA: 197] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dmitri A. Bulushev
- Boreskov
Institute of Catalysis, SB RAS, 630090 Novosibirsk, Russia
- Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Monika Zacharska
- Chemical & Environmental Sciences Department, University of Limerick, Limerick, Ireland
- Materials & Surface Science Institute, University of Limerick, Limerick, Ireland
| | - Elena V. Shlyakhova
- Novosibirsk State University, 630090 Novosibirsk, Russia
- Nikolaev
Institute of Inorganic Chemistry, SB RAS, 630090 Novosibirsk, Russia
| | - Andrey L. Chuvilin
- CIC nanoGUNE Consolider, E-20018 San Sebastian, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
| | - Yina Guo
- Materials & Surface Science Institute, University of Limerick, Limerick, Ireland
| | - Sergey Beloshapkin
- Materials & Surface Science Institute, University of Limerick, Limerick, Ireland
| | - Alexander V. Okotrub
- Novosibirsk State University, 630090 Novosibirsk, Russia
- Nikolaev
Institute of Inorganic Chemistry, SB RAS, 630090 Novosibirsk, Russia
| | - Lyubov G. Bulusheva
- Novosibirsk State University, 630090 Novosibirsk, Russia
- Nikolaev
Institute of Inorganic Chemistry, SB RAS, 630090 Novosibirsk, Russia
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313
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Li Q, Wei Y, Sa R, Ma Z, Wu K. A novel Pd3O9@α-Al2O3 catalyst under a hydroxylated effect: high activity in the CO oxidation reaction. Phys Chem Chem Phys 2015; 17:32140-8. [PMID: 26308732 DOI: 10.1039/c5cp03740a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Considering the importance of palladium-based and doped metal-oxide catalysts in CO oxidation, we design a new Pd3O9@α-Al2O3 catalyst and simulate its efficiency under a hydroxylated effect. The structure, electronic structure and oxidation activity of the hydroxylated Pd3O9@α-Al2O3(0001) surface are investigated by density functional theory. Under the O-rich growth conditions, Pd preferentially replaces Al. The lowest formation energy of the Pd-doped α-Al2O3(0001) surface is 0.21 eV under conditions wherein the coverage of the Pd-doped α-Al2O3 is 0.75 on a pre-hydroxylated surface and the water coverage is 0.25, which leads to formation of a Pd3O9 cluster embedded in the Al2O3(0001) surface. The reaction mechanisms of CO oxidization have been elucidated first by CO adsorption and migration, second by O(v) formation with the first CO2 release, then by the first foreign O2 filling and CO co-adsorption, and finally by the second CO2 desorption and restoration of the hydroxylated Pd3O9@α-Al2O3(0001) surface. The rate-determining step is the formation of the first CO2 in the whole catalytic cycle. The results also indicate that the energy barrier for CO oxidization is obviously reduced compared to that of the undoped surface, which implies that the introduction of Pd can efficiently improve the oxidation reactivity of the α-Al2O3(0001) surface. Compared to the synthesized Ir1/FeO(x) (1.41 eV) and Pt1/FeO(x) (0.79 eV) catalysts, the reaction activation barrier of CO oxidation is lowered by 0.65 eV and 0.03 eV, respectively. Therefore, the Pd3O9@α-Al2O3 catalyst shows superior catalytic activity in CO oxidation. The present results enrich the understanding of the catalytic oxidation of CO by palladium-based catalysts and provide a clue for fabricating palladium-based catalysts with low cost and high activity.
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Affiliation(s)
- Qiaohong Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China.
| | - Yongqin Wei
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China.
| | - Rongjian Sa
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China.
| | - Zuju Ma
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China.
| | - Kechen Wu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China.
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314
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Long R, Huang H, Li Y, Song L, Xiong Y. Palladium-Based Nanomaterials: A Platform to Produce Reactive Oxygen Species for Catalyzing Oxidation Reactions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:7025-7042. [PMID: 26422795 DOI: 10.1002/adma.201502068] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 07/06/2015] [Indexed: 05/28/2023]
Abstract
Oxidation reactions by molecular oxygen (O2 ) over palladium (Pd)-based nanomaterials are a series of processes crucial to the synthesis of fine chemicals. In the past decades, investigations of related catalytic materials have mainly been focused on the synthesis of Pd-based nanomaterials from the angle of tailoring their surface structures, compositions and supporting materials, in efforts to improve their activities in organic reactions. From the perspective of rational materials design, it is imperative to address the fundamental issues associated with catalyst performance, one of which should be oxygen activation by Pd-based nanomaterials. Here, the fundamentals that account for the transformation from O2 to reactive oxygen species over Pd, with a focus on singlet O2 and its analogue, are introduced. Methods for detecting and differentiating species are also presented to facilitate future fundamental research. Key factors for tuning the oxygen activation efficiencies of catalytic materials are then outlined, and recent developments in Pd-catalyzed oxygen-related organic reactions are summarized in alignment with each key factor. To close, we discuss the challenges and opportunities for photocatalysis research at this unique intersection as well as the potential impact on other research fields.
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Affiliation(s)
- Ran Long
- Hefei National Laboratory for Physical Sciences at the Microscale, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Hao Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yaping Li
- Hefei National Laboratory for Physical Sciences at the Microscale, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Li Song
- Hefei National Laboratory for Physical Sciences at the Microscale, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yujie Xiong
- Hefei National Laboratory for Physical Sciences at the Microscale, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), School of Chemistry and Materials Science, and National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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315
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He P, Xu B, Xu X, Song L, Wang X. Surfactant encapsulated palladium-polyoxometalates: controlled assembly and their application as single-atom catalysts. Chem Sci 2015; 7:1011-1015. [PMID: 29896369 PMCID: PMC5954849 DOI: 10.1039/c5sc03554f] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 10/23/2015] [Indexed: 11/24/2022] Open
Abstract
Two kinds of assembly structures (nanorolls and hollow spindles) based on the palladium substituted Wells–Dawson polyoxometalate (Pd-POM) were synthesised and showed high catalytic activity for both the Suzuki–Miyaura coupling reaction and semihydrogenation reaction.
The challenge with single-atom catalysts (SACs) is in designing a highly definite structure with accurate location of the single atom and high catalytic efficiency. The noble metal substituted polyoxometalates seem to be a kind of SAC because of their well resolved crystal structure. Here, we got two kinds of assembly structures (nanorolls and hollow spindles) based on the palladium substituted Wells–Dawson polyoxometalate (Pd-POM), which consists of isolated Pd atoms. Both the nanorolls and hollow spindles showed high catalytic activity for both the Suzuki–Miyaura coupling reaction and semihydrogenation reaction. The difference of the chemical surroundings between the nanorolls and hollow spindles leads to their discrepancy in the catalytic activity of semihydrogenation.
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Affiliation(s)
- Peilei He
- Department of Chemistry , Tsinghua University , Beijing , 100084 , China .
| | - Biao Xu
- Department of Chemistry , Tsinghua University , Beijing , 100084 , China .
| | - Xiaobin Xu
- Department of Chemistry , Tsinghua University , Beijing , 100084 , China .
| | - Li Song
- National Synchrotron Radiation Laboratory , University of Science and Technology of China , Hefei , 230029 , China
| | - Xun Wang
- Department of Chemistry , Tsinghua University , Beijing , 100084 , China .
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316
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Newton MA, Ferri D, Smolentsev G, Marchionni V, Nachtegaal M. Room-temperature carbon monoxide oxidation by oxygen over Pt/Al2O3 mediated by reactive platinum carbonates. Nat Commun 2015; 6:8675. [PMID: 26489669 PMCID: PMC4846310 DOI: 10.1038/ncomms9675] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2015] [Accepted: 09/18/2015] [Indexed: 12/25/2022] Open
Abstract
Room-temperature carbon monoxide oxidation, important for maintaining clean air among other applications, is challenging even after a century of research into carbon monoxide oxidation. Here we report using time-resolved diffuse reflectance infrared spectroscopy, X-ray absorption fine structure spectroscopy and mass spectrometry a platinum carbonate-mediated mechanism for the room-temperature oxidation of carbon monoxide. By applying a periodic reduction-oxidation mode of operation we further show that this behaviour is reversible and can be formed into a catalytic cycle that requires molecular communication between metallic platinum nanoparticles and highly dispersed oxidic platinum centres. A new possibility for the attainment of low-temperature oxidation of carbon monoxide is therefore demonstrated.
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Affiliation(s)
- Mark A Newton
- Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
| | - Davide Ferri
- Paul Scherrer Institut, CH-5232 Villigen, Switzerland
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317
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Lucci FR, Liu J, Marcinkowski MD, Yang M, Allard LF, Flytzani-Stephanopoulos M, Sykes ECH. Selective hydrogenation of 1,3-butadiene on platinum-copper alloys at the single-atom limit. Nat Commun 2015; 6:8550. [PMID: 26449766 PMCID: PMC4633827 DOI: 10.1038/ncomms9550] [Citation(s) in RCA: 331] [Impact Index Per Article: 36.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 09/03/2015] [Indexed: 12/23/2022] Open
Abstract
Platinum is ubiquitous in the production sectors of chemicals and fuels; however, its scarcity in nature and high price will limit future proliferation of platinum-catalysed reactions. One promising approach to conserve platinum involves understanding the smallest number of platinum atoms needed to catalyse a reaction, then designing catalysts with the minimal platinum ensembles. Here we design and test a new generation of platinum–copper nanoparticle catalysts for the selective hydrogenation of 1,3-butadiene,, an industrially important reaction. Isolated platinum atom geometries enable hydrogen activation and spillover but are incapable of C–C bond scission that leads to loss of selectivity and catalyst deactivation. γ-Alumina-supported single-atom alloy nanoparticle catalysts with <1 platinum atom per 100 copper atoms are found to exhibit high activity and selectivity for butadiene hydrogenation to butenes under mild conditions, demonstrating transferability from the model study to the catalytic reaction under practical conditions. Reducing the platinum content of industrial catalysts is an important research target. Here, the authors present a nanocatalyst containing less than 1% platinum, where the isolated platinum atoms contribute to both the catalyst activity and selectivity for butadiene hydrogenation.
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Affiliation(s)
- Felicia R Lucci
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, USA
| | - Jilei Liu
- Department of Chemical and Biological Engineering, Tufts University, 4 Colby Street, Medford, Massachusetts 02155, USA
| | - Matthew D Marcinkowski
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, USA
| | - Ming Yang
- Department of Chemical and Biological Engineering, Tufts University, 4 Colby Street, Medford, Massachusetts 02155, USA
| | - Lawrence F Allard
- Materials Science and Technology Division, Oak Ridge National Laboratory, PO Box 2008 MS-6064, Oak Ridge, Tennessee 37831, USA
| | - Maria Flytzani-Stephanopoulos
- Department of Chemical and Biological Engineering, Tufts University, 4 Colby Street, Medford, Massachusetts 02155, USA
| | - E Charles H Sykes
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, USA
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318
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Esrafili MD, Mohammad-Valipour R, Mousavi-Khoshdel SM, Nematollahi P. A Comparative Study of CO Oxidation on Nitrogen- and Phosphorus-Doped Graphene. Chemphyschem 2015; 16:3719-27. [DOI: 10.1002/cphc.201500488] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Revised: 09/17/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Mehdi D. Esrafili
- Laboratory of Theoretical Chemistry; Department of Chemistry; University of Maragheh; Maragheh Iran
| | | | | | - Parisa Nematollahi
- Laboratory of Theoretical Chemistry; Department of Chemistry; University of Maragheh; Maragheh Iran
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319
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320
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Ding K, Gulec A, Johnson AM, Schweitzer NM, Stucky GD, Marks LD, Stair PC. Identification of active sites in CO oxidation and water-gas shift over supported Pt catalysts. Science 2015; 350:189-92. [DOI: 10.1126/science.aac6368] [Citation(s) in RCA: 711] [Impact Index Per Article: 79.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Accepted: 08/19/2015] [Indexed: 01/22/2023]
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321
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Yan H, Cheng H, Yi H, Lin Y, Yao T, Wang C, Li J, Wei S, Lu J. Single-Atom Pd1/Graphene Catalyst Achieved by Atomic Layer Deposition: Remarkable Performance in Selective Hydrogenation of 1,3-Butadiene. J Am Chem Soc 2015; 137:10484-7. [DOI: 10.1021/jacs.5b06485] [Citation(s) in RCA: 758] [Impact Index Per Article: 84.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Huan Yan
- Department of Chemical Physics,
National Synchrotron Radiation Laboratory, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM),
Hefei National Laboratory for Physical Sciences at the Microscale,
CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Hao Cheng
- Department of Chemical Physics,
National Synchrotron Radiation Laboratory, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM),
Hefei National Laboratory for Physical Sciences at the Microscale,
CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Hong Yi
- Department of Chemical Physics,
National Synchrotron Radiation Laboratory, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM),
Hefei National Laboratory for Physical Sciences at the Microscale,
CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yue Lin
- Department of Chemical Physics,
National Synchrotron Radiation Laboratory, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM),
Hefei National Laboratory for Physical Sciences at the Microscale,
CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Tao Yao
- Department of Chemical Physics,
National Synchrotron Radiation Laboratory, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM),
Hefei National Laboratory for Physical Sciences at the Microscale,
CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Chunlei Wang
- Department of Chemical Physics,
National Synchrotron Radiation Laboratory, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM),
Hefei National Laboratory for Physical Sciences at the Microscale,
CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Junjie Li
- Department of Chemical Physics,
National Synchrotron Radiation Laboratory, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM),
Hefei National Laboratory for Physical Sciences at the Microscale,
CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Shiqiang Wei
- Department of Chemical Physics,
National Synchrotron Radiation Laboratory, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM),
Hefei National Laboratory for Physical Sciences at the Microscale,
CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Junling Lu
- Department of Chemical Physics,
National Synchrotron Radiation Laboratory, Collaborative Innovation
Center of Chemistry for Energy Materials (iChEM),
Hefei National Laboratory for Physical Sciences at the Microscale,
CAS Key Laboratory of Materials for Energy Conversion, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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322
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Zhu H, Wu Z, Su D, Veith GM, Lu H, Zhang P, Chai SH, Dai S. Constructing Hierarchical Interfaces: TiO2-Supported PtFe–FeOx Nanowires for Room Temperature CO Oxidation. J Am Chem Soc 2015; 137:10156-9. [DOI: 10.1021/jacs.5b07011] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
| | | | - Dong Su
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
| | | | - Hanfeng Lu
- Institute of Catalytic
Reaction Engineering, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang 310014, China
| | | | - Song-Hai Chai
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Sheng Dai
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
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323
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Strong Local Coordination Structure Effects on Subnanometer PtOx Clusters over CeO2 Nanowires Probed by Low-Temperature CO Oxidation. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00832] [Citation(s) in RCA: 172] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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324
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You C, Zhang C, Chen L, Qi Z. Highly dispersed palladium nanoclusters incorporated in amino-functionalized silica spheres for the selective hydrogenation of succinic acid to γ-butyrolactone. Appl Organomet Chem 2015. [DOI: 10.1002/aoc.3342] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Chenjia You
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Chi Zhang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Lifang Chen
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering; East China University of Science and Technology; Shanghai 200237 China
| | - Zhiwen Qi
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering; East China University of Science and Technology; Shanghai 200237 China
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325
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Vilé G, Albani D, Nachtegaal M, Chen Z, Dontsova D, Antonietti M, López N, Pérez-Ramírez J. Ein stabiler “Single-site”-Palladiumkatalysator für Hydrierungen. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505073] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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326
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Vilé G, Albani D, Nachtegaal M, Chen Z, Dontsova D, Antonietti M, López N, Pérez-Ramírez J. A Stable Single-Site Palladium Catalyst for Hydrogenations. Angew Chem Int Ed Engl 2015; 54:11265-9. [DOI: 10.1002/anie.201505073] [Citation(s) in RCA: 644] [Impact Index Per Article: 71.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Indexed: 11/10/2022]
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327
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Moses-DeBusk M, Allard LF, Blom DA, Narula CK. Oxidation-Induced Structural Changes in Sub-Nanometer Platinum Supported on Alumina. ChemCatChem 2015. [DOI: 10.1002/cctc.201500267] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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328
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Kopelent R, van Bokhoven JA, Szlachetko J, Edebeli J, Paun C, Nachtegaal M, Safonova OV. Catalytically Active and Spectator Ce3+in Ceria-Supported Metal Catalysts. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503022] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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329
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Kopelent R, van Bokhoven JA, Szlachetko J, Edebeli J, Paun C, Nachtegaal M, Safonova OV. Catalytically Active and Spectator Ce3+in Ceria-Supported Metal Catalysts. Angew Chem Int Ed Engl 2015; 54:8728-31. [DOI: 10.1002/anie.201503022] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 05/02/2015] [Indexed: 11/11/2022]
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330
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Wang J, Tan H, Yu S, Zhou K. Morphological Effects of Gold Clusters on the Reactivity of Ceria Surface Oxygen. ACS Catal 2015. [DOI: 10.1021/cs502055r] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Jin Wang
- School
of Chemistry and Chemical
Engineering, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Hongyi Tan
- School
of Chemistry and Chemical
Engineering, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Shuzhen Yu
- School
of Chemistry and Chemical
Engineering, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Kebin Zhou
- School
of Chemistry and Chemical
Engineering, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
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331
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Nelson NC, Manzano JS, Sadow AD, Overbury SH, Slowing II. Selective Hydrogenation of Phenol Catalyzed by Palladium on High-Surface-Area Ceria at Room Temperature and Ambient Pressure. ACS Catal 2015. [DOI: 10.1021/cs502000j] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Nicholas C. Nelson
- US DOE Ames Laboratory, Ames, Iowa 50011, United States
- Department
of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - J. Sebastián Manzano
- US DOE Ames Laboratory, Ames, Iowa 50011, United States
- Department
of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - Aaron D. Sadow
- US DOE Ames Laboratory, Ames, Iowa 50011, United States
- Department
of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, Iowa 50011, United States
| | - Steven H. Overbury
- Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831, United States
| | - Igor I. Slowing
- US DOE Ames Laboratory, Ames, Iowa 50011, United States
- Department
of Chemistry, Iowa State University, 1605 Gilman Hall, Ames, Iowa 50011, United States
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332
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Matsubu JC, Yang VN, Christopher P. Isolated Metal Active Site Concentration and Stability Control Catalytic CO2 Reduction Selectivity. J Am Chem Soc 2015; 137:3076-84. [DOI: 10.1021/ja5128133] [Citation(s) in RCA: 434] [Impact Index Per Article: 48.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- John C. Matsubu
- Department of Chemical & Environmental Engineering, and ‡Program in Materials Science and Engineering, University of California, Riverside, Riverside, California 92521, United States
| | - Vanessa N. Yang
- Department of Chemical & Environmental Engineering, and ‡Program in Materials Science and Engineering, University of California, Riverside, Riverside, California 92521, United States
| | - Phillip Christopher
- Department of Chemical & Environmental Engineering, and ‡Program in Materials Science and Engineering, University of California, Riverside, Riverside, California 92521, United States
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333
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Lin S, Huang J, Gao X. A Cu(111) supported h-BN nanosheet: a potential low-cost and high-performance catalyst for CO oxidation. Phys Chem Chem Phys 2015; 17:22097-105. [DOI: 10.1039/c5cp03027g] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CO oxidation on h-BNNS/Cu(111).
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Affiliation(s)
- Sen Lin
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou 350002
- China
| | - Jing Huang
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou 350002
- China
| | - Xiaomei Gao
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou 350002
- China
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334
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Lin S, Ye X, Huang J. Can metal-free silicon-doped hexagonal boron nitride nanosheets and nanotubes exhibit activity toward CO oxidation? Phys Chem Chem Phys 2015; 17:888-95. [DOI: 10.1039/c4cp05007j] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Si-doped hexagonal boron nitride nanosheets and nanotubes have been investigated by first-principle methods.
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Affiliation(s)
- Sen Lin
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350002
- China
| | - Xinxin Ye
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350002
- China
| | - Jing Huang
- Research Institute of Photocatalysis
- State Key Laboratory of Photocatalysis on Energy and Environment
- Fuzhou University
- Fuzhou 350002
- China
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335
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Narula CK, Allard LF, Stocks GM, Moses-DeBusk M. Remarkable NO oxidation on single supported platinum atoms. Sci Rep 2014; 4:7238. [PMID: 25429995 PMCID: PMC4246204 DOI: 10.1038/srep07238] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 11/06/2014] [Indexed: 12/02/2022] Open
Abstract
Our first-principles density functional theoretical modeling suggests that NO oxidation is feasible on fully oxidized single θ-Al2O3 supported platinum atoms via a modified Langmuir-Hinshelwood pathway. This is in contrast to the known decrease in NO oxidation activity of supported platinum with decreasing Pt particle size believed to be due to increased platinum oxidation. In order to validate our theoretical study, we evaluated single θ-Al2O3 supported platinum atoms and found them to exhibit remarkable NO oxidation activity. A comparison of turnover frequencies (TOF) of single supported Pt atoms with those of platinum particles for NO oxidation shows that single supported Pt atoms are as active as fully formed platinum particles. Thus, the overall picture of NO oxidation on supported Pt is that NO oxidation activity decreases with decreasing Pt particle size but accelerates when Pt is present only as single atoms.
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Affiliation(s)
- Chaitanya K Narula
- Materials Science &Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6133
| | - Lawrence F Allard
- Materials Science &Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6133
| | - G M Stocks
- Materials Science &Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6133
| | - Melanie Moses-DeBusk
- Energy &Transportation Science Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831
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