1
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Li D, Li W, Zhang J. CO oxidation on atomic nickel/phosphorene nanosheet: An efficient single-atom catalyst. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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2
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Gómez Herranz A, Germán E, Alonso JA, López MJ. Interaction of hydrogen with palladium–copper nanoalloys. Theor Chem Acc 2021. [DOI: 10.1007/s00214-021-02737-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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3
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VALADEZ HUERTA G, NANBA Y, ZULKIFLI NDB, RIVERA ROCABADO DS, ISHIMOTO T, KOYAMA M. First-Principles Calculations of Stability, Electronic Structure, and Sorption Properties of Nanoparticle Systems. JOURNAL OF COMPUTER CHEMISTRY-JAPAN 2021. [DOI: 10.2477/jccj.2021-0028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
| | - Yusuke NANBA
- Research Initiative for Supra Materials, Shinshu University
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4
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Vasiliev AA, Lagutin AS, Nabiev SS. Optimization of CO Oxidation Catalysts for Thermocatalytic and Semiconducting Gas Sensors. RUSS J INORG CHEM+ 2020. [DOI: 10.1134/s0036023620120190] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Liu G, Walsh AG, Zhang P. Synergism of Iron and Platinum Species for Low-Temperature CO Oxidation: From Two-Dimensional Surface to Nanoparticle and Single-Atom Catalysts. J Phys Chem Lett 2020; 11:2219-2229. [PMID: 32109069 DOI: 10.1021/acs.jpclett.9b03311] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
CO oxidation is one of the most studied reactions in heterogeneous catalysis. It is present in air cleaning and automotive emission control. It also participates in the removal of CO from streams of hydrogen used in fuel cells. Because of the competitive adsorption of CO and O2 over active sites, the use of Pt-based catalysts for low-temperature CO oxidation remains a challenge. Recently, great progress has been made with catalysts containing Pt-Fe species because of the contribution of Fe species to O2 activation. The structure-activity relationship and reaction mechanisms have been investigated with various Pt-Fe catalysts. In this Perspective, we give a summary of the recent advances of low-temperature CO oxidation over Pt-Fe catalysts with a focus on the synergistic effect of Pt and Fe species in the CO and O2 activation of catalytic reactions. Future prospects for the preparation of highly effective Pt-Fe catalysts are also proposed.
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Affiliation(s)
- Gang Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Road, Changchun 130012, China
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, Halifax B3H 4R2, Canada
| | - Andrew G Walsh
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, Halifax B3H 4R2, Canada
| | - Peng Zhang
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, Halifax B3H 4R2, Canada
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6
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Levin N, Lengyel J, Eckhard JF, Tschurl M, Heiz U. Catalytic Non-Oxidative Coupling of Methane on Ta 8O 2.. J Am Chem Soc 2020; 142:5862-5869. [PMID: 32125833 DOI: 10.1021/jacs.0c01306] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Mass-selected Ta8O2+ cluster ions catalyze the transformation of methane in a gas-phase ion trap experiment via nonoxidative coupling into ethane and H2, which is a prospective reaction for the generation of valuable chemicals on an industrial scale. Systematic variation of the reaction conditions and the isotopic labeling of methane by deuterium allow for an unambiguous identification of a catalytic cycle. Comparison with the proposed catalytic cycle for tantalum-doped silica catalysts reveals surprising similarities as the mechanism of the C-C coupling step, but also peculiar differences like the mechanism of the eventual formation of molecular hydrogen and ethane. Therefore, this work not only supplies insights into the mechanisms of methane coupling reactions but also illustrates how the study of trapped ionic catalysts can contribute to the understanding of reactions, which are otherwise difficult to study.
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Affiliation(s)
- Nikita Levin
- Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Jozef Lengyel
- Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Jan F Eckhard
- Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Martin Tschurl
- Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Ueli Heiz
- Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany
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7
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Cai X, Hu W, Xu S, Yang D, Chen M, Shu M, Si R, Ding W, Zhu Y. Structural Relaxation Enabled by Internal Vacancy Available in a 24-Atom Gold Cluster Reinforces Catalytic Reactivity. J Am Chem Soc 2020; 142:4141-4153. [DOI: 10.1021/jacs.9b07761] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Xiao Cai
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Weigang Hu
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Shun Xu
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Dan Yang
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Mingyang Chen
- Center for Green Innovation, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Beijing Computational Science Research Center, Beijing 100193, China
| | - Miao Shu
- Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai 201204, China
| | - Rui Si
- Shanghai Synchrotron Radiation Facility, Zhangjiang Laboratory, Shanghai 201204, China
| | - Weiping Ding
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Yan Zhu
- School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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8
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Kohaut S, Rapps T, Fink K, Schooss D. Structural Evolution of Palladium Clusters Pd55––Pd147–: Transition to the Bulk. J Phys Chem A 2019; 123:10940-10946. [DOI: 10.1021/acs.jpca.9b09369] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stephan Kohaut
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Thomas Rapps
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Karin Fink
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Detlef Schooss
- Institute of Nanotechnology, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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9
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Zhao Y, Wang M, Zhang Y, Ding X, He S. Activity of Atomically Precise Titania Nanoparticles in CO Oxidation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201902008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yan‐Xia Zhao
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- Beijing National Laboratory for Molecular Sciences and CAS Research Education Centre of Excellence in Molecular Sciences Beijing 100190 P. R. China
| | - Meng‐Meng Wang
- Department of Mathematics and Physics North China Electric Power University Beijing 102206 China
| | - Yan Zhang
- Department of Mathematics and Physics North China Electric Power University Beijing 102206 China
| | - Xun‐Lei Ding
- Department of Mathematics and Physics North China Electric Power University Beijing 102206 China
| | - Sheng‐Gui He
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- Beijing National Laboratory for Molecular Sciences and CAS Research Education Centre of Excellence in Molecular Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
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10
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Zhao Y, Wang M, Zhang Y, Ding X, He S. Activity of Atomically Precise Titania Nanoparticles in CO Oxidation. Angew Chem Int Ed Engl 2019; 58:8002-8006. [DOI: 10.1002/anie.201902008] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 04/01/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Yan‐Xia Zhao
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- Beijing National Laboratory for Molecular Sciences and CAS Research Education Centre of Excellence in Molecular Sciences Beijing 100190 P. R. China
| | - Meng‐Meng Wang
- Department of Mathematics and Physics North China Electric Power University Beijing 102206 China
| | - Yan Zhang
- Department of Mathematics and Physics North China Electric Power University Beijing 102206 China
| | - Xun‐Lei Ding
- Department of Mathematics and Physics North China Electric Power University Beijing 102206 China
| | - Sheng‐Gui He
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
- Beijing National Laboratory for Molecular Sciences and CAS Research Education Centre of Excellence in Molecular Sciences Beijing 100190 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
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11
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Tofighi G, Yu X, Lichtenberg H, Doronkin DE, Wang W, Wöll C, Wang Y, Grunwaldt JD. Chemical Nature of Microfluidically Synthesized AuPd Nanoalloys Supported on TiO2. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00161] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Ghazal Tofighi
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany
| | | | - Henning Lichtenberg
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany
| | - Dmitry E. Doronkin
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany
| | | | | | | | - Jan-Dierk Grunwaldt
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), D-76131 Karlsruhe, Germany
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12
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Liao Z, Zhu J, Jawad A, Muzi J, Chen Z, Chen Z. Degradation of Phenol Using Peroxymonosulfate Activated by a High Efficiency and Stable CoMgAl-LDH Catalyst. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E968. [PMID: 30909534 PMCID: PMC6471579 DOI: 10.3390/ma12060968] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 03/11/2019] [Accepted: 03/18/2019] [Indexed: 12/03/2022]
Abstract
In this study, we report on an active and stable CoMgAl layered double hydrotalcite (LDH) catalyst for phenol degradation by heterogeneous activation of peroxymonosulfate (PMS). The CoMgAl-LDH catalyst was synthesized by hydrothermal method. The PMS/CoMgAl-LDH system overcomes the drawbacks of traditional Fenton processes. Various effects, e.g., scavengers, chloride ion, catalyst dosage, PMS concentration, temperature, and pH, were also inspected to evaluate the system. The results indicated that the PMS/CoMgAl-LDH system had extremely high efficiency for phenol degradation; 0.1 mM phenol could be completely degraded by 0.3 g/L catalyst and 3 mM PMS within 60 min at 30 °C. The CoMgAl-LDH catalyst appeared to possess outstanding reusability and stability. After four rounds of recycling, nearly 100% of the phenol was removed within 80 min by the PMS/CoMgAl-LDH system, with only 0.05 mg/L Co2+ leaching. A sulfate radical was the main oxidation species in the PMS/Co-LDH system. The degradation rate of phenol was influenced by temperature, and the activation energy was 65.19 kJ/mol. These advantages proved the PMS/CoMgAl-LDH system is an effective strategy for the treatment of organic contaminants.
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Affiliation(s)
- Zhuwei Liao
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Jingyi Zhu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Ali Jawad
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Jiajing Muzi
- GAD Environmental Co., Ltd., Shenzhen 518067, China.
| | - Zhuqi Chen
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage Ministry of Education, Hubei Key Laboratory of Materials of Materials and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Zhulei Chen
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
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13
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Schwarz H, Asmis KR. Identification of Active Sites and Structural Characterization of Reactive Ionic Intermediates by Cryogenic Ion Trap Vibrational Spectroscopy. Chemistry 2019; 25:2112-2126. [PMID: 30623993 DOI: 10.1002/chem.201805836] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 01/07/2019] [Indexed: 01/02/2023]
Abstract
Cryogenic ion trap vibrational spectroscopy paired with quantum chemistry currently represents the most generally applicable approach for the structural investigation of gaseous cluster ions that are not amenable to direct absorption spectroscopy. Here, we give an overview of the most popular variants of infrared action spectroscopy and describe the advantages of using cryogenic ion traps in combination with messenger tagging and vibrational predissociation spectroscopy. We then highlight a few recent studies that apply this technique to identify highly reactive ionic intermediates and to characterize their reactive sites. We conclude by commenting on future challenges and potential developments in the field.
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Affiliation(s)
- Helmut Schwarz
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Knut R Asmis
- Wilhelm-Ostwald Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstr. 2, 04103, Leipzig, Germany
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14
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Structural characterization of Co-doped Pd (n=1–12) clusters: First-principles calculations. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2018.11.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Murata K, Eleeda E, Ohyama J, Yamamoto Y, Arai S, Satsuma A. Identification of active sites in CO oxidation over a Pd/Al2O3 catalyst. Phys Chem Chem Phys 2019; 21:18128-18137. [DOI: 10.1039/c9cp03943k] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The active sites of Pd/Al2O3 catalysts for CO oxidations were identified by investigating the dependence of CO oxidation activities on the surface structure and morphology of Pd nanoparticles.
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Affiliation(s)
- Kazumasa Murata
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
| | - Eleen Eleeda
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
| | - Junya Ohyama
- Faculty of Advanced Science and Technology
- Kumamoto University
- Kumamoto 860-8555
- Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB)
| | - Yuta Yamamoto
- Institute of Materials and Systems for Sustainability
- Nagoya University
- Nagoya
- Japan
| | - Shigeo Arai
- Institute of Materials and Systems for Sustainability
- Nagoya University
- Nagoya
- Japan
| | - Atsushi Satsuma
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB)
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16
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Li J, Tang Y, Ma Y, Zhang Z, Tao FF, Qu Y. In Situ Formation of Isolated Bimetallic PtCe Sites of Single-Dispersed Pt on CeO 2 for Low-Temperature CO Oxidation. ACS APPLIED MATERIALS & INTERFACES 2018; 10:38134-38140. [PMID: 30360084 DOI: 10.1021/acsami.8b15585] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Identification of the chemical states of catalytic sites is critical for an atomic-level understanding of catalytic mechanisms. Herein, hydrogen thermal pretreatment of the Pt single atoms on porous nanorods of CeO2 (Pt1/ PN-CeO2) induced the formation of isolated bimetallic PtCe sites as a new type of active center for CO oxidation. The evolutions of Pt1/ PN-CeO2 catalysts during the hydrogen pretreatment and CO oxidation were examined by various in situ techniques including infrared, ambient-pressure X-ray photoelectron and X-ray absorption spectroscopy. The experimental results demonstrate that these bimetallic sites can be partially preserved or reoxidized into Pt-O-Ce with a low coordination number with oxygen under realistic conditions, leading to the appropriate CO adsorption and activating the efficient activity of Pt1/ PN-CeO2 for CO oxidation at low temperature.
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Affiliation(s)
- Jing Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, College of Chemistry and Chemical Engineering , Liaocheng University , Liaocheng 252059 , China
- Center for Applied Chemical Research, Frontier Institute of Science and Technology and Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology , Xi'an Jiaotong University , Xi'an 710049 , China
| | - Yu Tang
- State Key Laboratory of Photocatalysis on Energy and Environment and College of Chemistry , Fuzhou University , Fuzhou 350116 , China
- Department of Chemical and Petroleum Engineering , University of Kansas , Lawrence , Kansas 66047 , United States
| | - Yuanyuan Ma
- Center for Applied Chemical Research, Frontier Institute of Science and Technology and Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology , Xi'an Jiaotong University , Xi'an 710049 , China
| | - Zhiyun Zhang
- Center for Applied Chemical Research, Frontier Institute of Science and Technology and Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology , Xi'an Jiaotong University , Xi'an 710049 , China
| | - Franklin Feng Tao
- State Key Laboratory of Photocatalysis on Energy and Environment and College of Chemistry , Fuzhou University , Fuzhou 350116 , China
- Department of Chemical and Petroleum Engineering , University of Kansas , Lawrence , Kansas 66047 , United States
| | - Yongquan Qu
- Center for Applied Chemical Research, Frontier Institute of Science and Technology and Shaanxi Key Laboratory of Energy Chemical Process Intensification, School of Chemical Engineering and Technology , Xi'an Jiaotong University , Xi'an 710049 , China
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17
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Debnath S, Knorke H, Schöllkopf W, Zhou S, Asmis KR, Schwarz H. Experimental Identification of the Active Site in the Heteronuclear Redox Couples [AlVO
x
]+.
/CO/N2
O (x=
3, 4) by Gas-Phase IR Spectroscopy. Angew Chem Int Ed Engl 2018; 57:7448-7452. [DOI: 10.1002/anie.201804056] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Indexed: 12/28/2022]
Affiliation(s)
- Sreekanta Debnath
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie; Universität Leipzig; Linnéstr. 2 04103 Leipzig Germany
- Fritz-Haber-Institut der Max-Planck-Gesellschaft; Faradayweg 4-6 14195 Berlin Germany
| | - Harald Knorke
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie; Universität Leipzig; Linnéstr. 2 04103 Leipzig Germany
| | - Wieland Schöllkopf
- Fritz-Haber-Institut der Max-Planck-Gesellschaft; Faradayweg 4-6 14195 Berlin Germany
| | - Shaodong Zhou
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Germany
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology; College of Chemical and Biological Engineering; Zhejiang University; 310027 Hangzhou P. R. China
| | - Knut R. Asmis
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie; Universität Leipzig; Linnéstr. 2 04103 Leipzig Germany
| | - Helmut Schwarz
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Germany
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18
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Debnath S, Knorke H, Schöllkopf W, Zhou S, Asmis KR, Schwarz H. Experimentelle Bestimmung des aktiven Zentrums im heteronuklearen Redox-System [AlVO
x
]+.
/CO/N2
O (x=
3, 4) durch Gasphasen-Infrarotspektroskopie. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804056] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sreekanta Debnath
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie; Universität Leipzig; Linnéstraße 2 04103 Leipzig Deutschland
- Fritz-Haber-Institut der Max-Planck-Gesellschaft; Faradayweg 4-6 14195 Berlin Deutschland
| | - Harald Knorke
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie; Universität Leipzig; Linnéstraße 2 04103 Leipzig Deutschland
| | - Wieland Schöllkopf
- Fritz-Haber-Institut der Max-Planck-Gesellschaft; Faradayweg 4-6 14195 Berlin Deutschland
| | - Shaodong Zhou
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Deutschland
- Zhejiang Provincial Key Laboratory of Advanced Chemical, Engineering Manufacture Technology; College of Chemical and Biological Engineering; Zhejiang University; 310027 Hangzhou China
| | - Knut R. Asmis
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie; Universität Leipzig; Linnéstraße 2 04103 Leipzig Deutschland
| | - Helmut Schwarz
- Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 135 10623 Berlin Deutschland
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19
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Yang Y, Reber AC, Gilliland SE, Castano CE, Gupton BF, Khanna SN. More than just a support: Graphene as a solid-state ligand for palladium-catalyzed cross-coupling reactions. J Catal 2018. [DOI: 10.1016/j.jcat.2018.01.027] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Wang LN, Li XN, Jiang LX, Yang B, Liu QY, Xu HG, Zheng WJ, He SG. Catalytic CO Oxidation by O2
Mediated by Noble-Metal-Free Cluster Anions Cu2
VO3-
5
−. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712129] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Li-Na Wang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Xiao-Na Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Li-Xue Jiang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Bin Yang
- State Key Laboratory of Molecular Reaction Dynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Qing-Yu Liu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Hong-Guang Xu
- State Key Laboratory of Molecular Reaction Dynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Wei-Jun Zheng
- State Key Laboratory of Molecular Reaction Dynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Sheng-Gui He
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
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21
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Wang LN, Li XN, Jiang LX, Yang B, Liu QY, Xu HG, Zheng WJ, He SG. Catalytic CO Oxidation by O2
Mediated by Noble-Metal-Free Cluster Anions Cu2
VO3-
5
−. Angew Chem Int Ed Engl 2018; 57:3349-3353. [DOI: 10.1002/anie.201712129] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 01/25/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Li-Na Wang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Xiao-Na Li
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Li-Xue Jiang
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Bin Yang
- State Key Laboratory of Molecular Reaction Dynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Qing-Yu Liu
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Hong-Guang Xu
- State Key Laboratory of Molecular Reaction Dynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Wei-Jun Zheng
- State Key Laboratory of Molecular Reaction Dynamics; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
| | - Sheng-Gui He
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species; Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 China
- University of Chinese Academy of Sciences; Beijing 100049 China
- Beijing National Laboratory for Molecular Sciences; CAS Research/Education Center of Excellence in Molecular Sciences; Beijing 100190 China
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22
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Xia Y, Ye J, Cheng DG, Chen F, Zhan X. Identification of a flattened Pd–Ce oxide cluster as a highly efficient catalyst for low-temperature CO oxidation. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01590b] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An improved deposition method was employed to prepare a Pd/CeO2 catalyst, which exhibited highly efficient activity in low-temperature CO oxidation (LTO).
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Affiliation(s)
- Yang Xia
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Jingrui Ye
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Dang-guo Cheng
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Fengqiu Chen
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Xiaoli Zhan
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology
- College of Chemical and Biological Engineering
- Zhejiang University
- Hangzhou 310027
- P. R. China
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23
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Dieu Hang T, Hung HM, Nguyen MT. Comparative Study of Methanol Activation by Different Small Mixed Silicon Clusters Si 2M with M = H, Li, Na, Cu, and Ag. ACS OMEGA 2017; 2:4563-4574. [PMID: 31457748 PMCID: PMC6641899 DOI: 10.1021/acsomega.7b00808] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Accepted: 08/01/2017] [Indexed: 06/10/2023]
Abstract
High-accuracy quantum chemical calculations were carried out to study the mechanisms and catalytic abilities of various mixed silicon species Si2M with M = H, Li, Na, Cu, and Ag toward the first step of methanol activation reaction. Standard heats of formation of these small triatomic Si clusters were determined. Potential-energy profiles were constructed using the coupled-cluster theory with extrapolation to complete basis set CCSD(T)/CBS, and CCSD(T)/aug-cc-pVTZ-PP for Si2Cu and Si2Ag. The most stable complexes generated by the interaction of methanol with the mixed clusters Si2M possess low-spin states and mainly stem from an M-O connection in preference to Si-O interaction, except for the Si2H case. In two competitive pathways including O-H and C-H bond breakings, the cleavage of the O-H bond in the presence of all clusters studied becomes predominant. Of the mixed clusters Si2M considered, the dissociation pathways of both O-H and C-H bonds with Si2Li turns out to have the lowest energy barriers. The most remarkable finding is the absence of the overall energy barrier for the O-H cleavage with the assistance of Si2Li. The breaking of O-H and C-H bonds with the assistance of Si2H, Si2Li, and Si2Na is kinetically preferred with respect to the Si2Cu and Si2Ag cases, apart from the case of Si2Na for O-H cleavage. In comparison with other transition-metal clusters with the same size, such as Cu3, Pt3, and PtAu2, the energy barriers for the O-H bond activation in the presence of small Si species, especially Si2H and Si2Li, are found to be lower. Consequently, these small mixed silicon clusters can be regarded as promising alternatives for the expensive metal-based catalysts currently used for methanol activation particularly and other dehydrogenation processes of organic compounds. The present study also suggests a further extensive search for other doped silicon clusters as efficient and more realistic gas-phase catalysts for important dehydrogenation processes in such a way that they can be experimentally prepared and implemented.
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Affiliation(s)
- Tran Dieu Hang
- Department
of Chemistry, Quy Nhon University, 590000 Quy Nhon, Vietnam
- Department
of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Huynh Minh Hung
- Department
of Chemistry, Quy Nhon University, 590000 Quy Nhon, Vietnam
- Department
of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Minh Tho Nguyen
- Computational
Chemistry Research Group, Ton Duc Thang
University, 700000 Ho Chi Minh City, Vietnam
- Faculty of Applied Sciences, Ton Duc Thang
University, 700000 Ho Chi Minh City, Vietnam
- Department
of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
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24
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Wang QY, Ding YH. Methanol Oxidation on Platinum Catalyst: Why does the Negatively Charged Surface Perform Better Than the Neutral One? ChemistrySelect 2017. [DOI: 10.1002/slct.201601491] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qing-Yun Wang
- Laboratory of Theoretical and Computational Chemistry; Institute of Theoretical Chemistry; Jilin University; Changchun 130023 People's Republic of China
- College of Chemistry and Chemical Engineering; Hexi University; Zhangye Gansu 734000 People's Republic China
| | - Yi-Hong Ding
- Laboratory of Theoretical and Computational Chemistry; Institute of Theoretical Chemistry; Jilin University; Changchun 130023 People's Republic of China
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25
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Cao X, Chen M, Ma J, Yin B, Xing X. CO oxidation by the atomic oxygen on silver clusters: structurally dependent mechanisms generating free or chemically bonded CO2. Phys Chem Chem Phys 2017; 19:196-203. [DOI: 10.1039/c6cp06741g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxidation of CO by the atomic oxygen on AgnO− (n = 1–8) forms free or chemically bonded CO2.
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Affiliation(s)
- Xizi Cao
- Shanghai Key Lab of Chemical Assessment and Sustainability
- Department of Chemistry
- Tongji University
- Shanghai
- P. R. China
| | - Mengyi Chen
- Shanghai Key Lab of Chemical Assessment and Sustainability
- Department of Chemistry
- Tongji University
- Shanghai
- P. R. China
| | - Jun Ma
- Shanghai Key Lab of Chemical Assessment and Sustainability
- Department of Chemistry
- Tongji University
- Shanghai
- P. R. China
| | - Baoqi Yin
- Shanghai Key Lab of Chemical Assessment and Sustainability
- Department of Chemistry
- Tongji University
- Shanghai
- P. R. China
| | - Xiaopeng Xing
- Shanghai Key Lab of Chemical Assessment and Sustainability
- Department of Chemistry
- Tongji University
- Shanghai
- P. R. China
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26
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Koyama K, Nagata T, Kudoh S, Miyajima K, Huitema DMM, Chernyy V, Bakker JM, Mafuné F. Geometrical Structures of Partially Oxidized Rhodium Cluster Cations, Rh6Om+ (m = 4, 5, 6), Revealed by Infrared Multiple Photon Dissociation Spectroscopy. J Phys Chem A 2016; 120:8599-8605. [DOI: 10.1021/acs.jpca.6b08822] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kohei Koyama
- Department
of Basic Science, School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Toshiaki Nagata
- Department
of Basic Science, School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Satoshi Kudoh
- Department
of Basic Science, School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Ken Miyajima
- Department
of Basic Science, School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Douwe M. M. Huitema
- FELIX
Laboratory, Institute for Molecules and Materials, Radboud University, Toernooiveld 7c, 6525 ED Nijmegen, The Netherlands
| | - Valeriy Chernyy
- FELIX
Laboratory, Institute for Molecules and Materials, Radboud University, Toernooiveld 7c, 6525 ED Nijmegen, The Netherlands
| | - Joost M. Bakker
- FELIX
Laboratory, Institute for Molecules and Materials, Radboud University, Toernooiveld 7c, 6525 ED Nijmegen, The Netherlands
| | - Fumitaka Mafuné
- Department
of Basic Science, School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
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27
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Mafuné F, Tawaraya Y, Kudoh S. Reactivity Control of Rhodium Cluster Ions by Alloying with Tantalum Atoms. J Phys Chem A 2016; 120:861-7. [DOI: 10.1021/acs.jpca.5b11898] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fumitaka Mafuné
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Yuki Tawaraya
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Satoshi Kudoh
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
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28
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Mafuné F, Takenouchi M, Miyajima K, Kudoh S. Rhodium Oxide Cluster Ions Studied by Thermal Desorption Spectrometry. J Phys Chem A 2016; 120:356-63. [DOI: 10.1021/acs.jpca.5b09531] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fumitaka Mafuné
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Masato Takenouchi
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Ken Miyajima
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Satoshi Kudoh
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
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29
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Liu H, Xing X, Wang X, Qu H, Wang GJ, Zhou MF. Co-Adsorption of O 2 and CO on Au 2- : Infrared Photodissociation Spectroscopy and Theoretical Study of [Au 2 O 2 (CO) n ] - (n=2-6). Chemistry 2016; 22:2085-2091. [PMID: 26748785 DOI: 10.1002/chem.201504384] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Indexed: 11/07/2022]
Abstract
The co-adsorption of O2 and CO on anionic sites of gold species is considered as a crucial step in the catalytic CO oxidation on gold catalysts. In this regard, the [Au2 O2 (CO)n ]- (n=2-6) complexes were prepared by using a laser vaporization supersonic ion source and were studied by using infrared photodissociation spectroscopy in the gas phase. All the [Au2 O2 (CO)n ]- (n=2-6) complexes were characterized to have a core structure involving one CO and one O2 molecule co-adsorbed on Au2- with the other CO molecules physically tagged around. The CO stretching frequency of the [Au2 O2 (CO)]- core ion is observed around ν˜ =2032-2042 cm-1 , which is about 200 cm-1 higher than that in [Au2 (CO)2 ]- . This frequency difference and the analyses based on density functional calculations provide direct evidence for the synergy effect of the chemically adsorbed O2 and CO. The low lying structures with carbonate group were not observed experimentally because of high formation barriers. The structures and the stability (i.e., the inertness in a sense) of the co-adsorbed O2 and CO on Au2- may have relevance to the elementary reaction steps on real gold catalysts.
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Affiliation(s)
- Hao Liu
- Shanghai Key Lab of Chemical Assessment and Sustainability, Department of Chemistry, Tongji University, 1239 Siping Road, Shanghai, 200092, P.R. China
| | - Xiaopeng Xing
- Shanghai Key Lab of Chemical Assessment and Sustainability, Department of Chemistry, Tongji University, 1239 Siping Road, Shanghai, 200092, P.R. China.
| | - Xuefeng Wang
- Shanghai Key Lab of Chemical Assessment and Sustainability, Department of Chemistry, Tongji University, 1239 Siping Road, Shanghai, 200092, P.R. China
| | - Hui Qu
- Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, P.R. China
| | - Guan-Jun Wang
- Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, P.R. China
| | - Ming-Fei Zhou
- Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysts and Innovative Materials, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai, 200433, P.R. China.
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30
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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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31
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Abstract
Palladium oxide cluster ions, PdnOm(+), were prepared in the gas phase using laser ablation of a palladium rod in the presence of oxygen. The cluster ions were heated to 1000 K downstream from the cluster source (post heating), and the abundance of PdnOm(+) (n = 2-7) was examined using mass spectrometry. Temperature-programmed desorption experiments revealed that an oxygen molecule is released from oxygen-rich PdnOm(+), forming oxygen-deficient PdnOm-2(+). It was found that Pd6O4(+) was thermally stable up to 1000 K. The activation energy for oxygen molecule desorption has been obtained and compared with previous results by Lang et al.
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Affiliation(s)
- Ken Miyajima
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Fumitaka Mafuné
- Department of Basic Science, School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
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32
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Tawaraya Y, Kudoh S, Miyajima K, Mafuné F. Thermal Desorption and Reaction of NO Adsorbed on Rhodium Cluster Ions Studied by Thermal Desorption Spectroscopy. J Phys Chem A 2015; 119:8461-8. [DOI: 10.1021/acs.jpca.5b04224] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuki Tawaraya
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Satoshi Kudoh
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Ken Miyajima
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Fumitaka Mafuné
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
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33
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Takenouchi M, Kudoh S, Miyajima K, Mafuné F. Adsorption and Desorption of Hydrogen by Gas-Phase Palladium Clusters Revealed by In Situ Thermal Desorption Spectroscopy. J Phys Chem A 2015; 119:6766-72. [DOI: 10.1021/acs.jpca.5b03926] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Masato Takenouchi
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Satoshi Kudoh
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Ken Miyajima
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Fumitaka Mafuné
- Department of Basic Science,
School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
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34
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Martínez-Suárez L, Siemer N, Frenzel J, Marx D. Reaction Network of Methanol Synthesis over Cu/ZnO Nanocatalysts. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00442] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Luis Martínez-Suárez
- Lehrstuhl für Theoretische Chemie, Ruhr−Universität Bochum, 44780 Bochum, Germany
| | - Niklas Siemer
- Lehrstuhl für Theoretische Chemie, Ruhr−Universität Bochum, 44780 Bochum, Germany
| | - Johannes Frenzel
- Lehrstuhl für Theoretische Chemie, Ruhr−Universität Bochum, 44780 Bochum, Germany
| | - Dominik Marx
- Lehrstuhl für Theoretische Chemie, Ruhr−Universität Bochum, 44780 Bochum, Germany
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