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Dong C, Li Y, Cheng D, Zhang M, Liu J, Wang YG, Xiao D, Ma D. Supported Metal Clusters: Fabrication and Application in Heterogeneous Catalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02818] [Citation(s) in RCA: 115] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Chunyang Dong
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing 100871, China
| | - Yinlong Li
- Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Danyang Cheng
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing 100871, China
| | - Mengtao Zhang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing 100871, China
| | - Jinjia Liu
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi 030001, China
- National Energy Center for Coal to Liquids, Synfuels China Technology Co., Ltd, Beijing 101400, China
| | - Yang-Gang Wang
- Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Dequan Xiao
- Center for Integrative Materials Discovery, Department of Chemistry and Chemical Engineering, University of New Haven, West Haven, Connecticut 06516, United States
| | - Ding Ma
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing 100871, China
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Hofman MS, Scoullos EV, Robbins JP, Ezeonu L, Potapenko DV, Yang X, Podkolzin SG, Koel BE. Acetic Acid Adsorption and Reactions on Ni(110). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:8705-8715. [PMID: 32538633 DOI: 10.1021/acs.langmuir.0c00713] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Acetic acid adsorption and reactions at multiple surface coverage values on Ni(110) were studied with temperature-programmed desorption (TPD) and infrared reflection absorption spectroscopy (IRAS) at 90-500 K. The experimental measurements were interpreted with density functional theory (DFT) calculations that provided information on adsorbate geometries, energies, and vibrational modes. Below the monolayer saturation coverage of 0.36 ML at 90 K, acetic acid adsorbs mostly molecularly. Above this coverage, a physisorbed layer is formed with dimers and catemers, without detectable monomers. Dimers and catemers desorb as molecular acetic acid at 157 and 172 K, respectively. Between 90 and 200 K, the O-H bond in acetic acid breaks to form bridge-bonded bidentate acetate that becomes the dominant surface species. Desorption-limited hydrogen evolution is observed at 265 K. However, even after the acetate formation, acetic acid desorbs molecularly at 200-300 K due to recombination. Minor surface species observed at 200 K, acetyls or acetates with a carbonyl group, decompose below 350 K and generate adsorbed carbon monoxide. At 350 K, the surface likely undergoes restructuring, the extent of which increases with acetic acid coverage. The initial dominant bridge-bonded bidentate acetate species formed below 200 K remain on the surface, but they now mostly adsorb on the restructured sites. The acetates and all other remaining hydrocarbon species decompose simultaneously at 425 K in a narrow temperature range with concurrent evolution of hydrogen, carbon monoxide, and carbon dioxide. Above 425 K, only carbon remains on the surface.
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Affiliation(s)
- Michelle S Hofman
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Emanuel V Scoullos
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Jason P Robbins
- Department of Chemical Engineering and Materials Science, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Lotanna Ezeonu
- Department of Chemical Engineering and Materials Science, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Denis V Potapenko
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Xiaofang Yang
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Simon G Podkolzin
- Department of Chemical Engineering and Materials Science, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Bruce E Koel
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
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Liu X, Xu M, Han Y, Meng C. Adsorption, diffusion and aggregation of Ir atoms on graphdiyne: a first-principles investigation. Phys Chem Chem Phys 2020; 22:25841-25847. [DOI: 10.1039/d0cp05197g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Shifting the atomic diffusion thermodynamics, e.g. with involvement reactants, etc., would initiate the thermodynamically favorable aggregation of Ir atoms into clusters on graphdiyne.
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Affiliation(s)
- Xin Liu
- State Key Laboratory of Fine Chemicals
- Department of Chemistry
- School of Chemical Engineering
- Dalian University of Technology
- Dalian
| | - Meng Xu
- State Key Laboratory of Fine Chemicals
- Department of Chemistry
- School of Chemical Engineering
- Dalian University of Technology
- Dalian
| | - Yu Han
- KAUST Catalysis Center (KCC)
- King Abdullah University of Science and Technology
- Thuwal 23955-6900
- Saudi Arabia
| | - Changgong Meng
- State Key Laboratory of Fine Chemicals
- Department of Chemistry
- School of Chemical Engineering
- Dalian University of Technology
- Dalian
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