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Feng S, Song X, Liu Y, Lin X, Yan L, Liu S, Dong W, Yang X, Jiang Z, Ding Y. In situ formation of mononuclear complexes by reaction-induced atomic dispersion of supported noble metal nanoparticles. Nat Commun 2019; 10:5281. [PMID: 31754128 PMCID: PMC6872874 DOI: 10.1038/s41467-019-12965-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 10/10/2019] [Indexed: 11/17/2022] Open
Abstract
Supported noble metal nanoclusters and single-metal-site catalysts are inclined to aggregate into particles, driven by the high surface-to-volume ratio. Herein, we report a general method to atomically disperse noble metal nanoparticles. The activated carbon supported nanoparticles of Ru, Rh, Pd, Ag, Ir and Pt metals with loading up to 5 wt. % are completely dispersed by reacting with CH3I and CO mixture. The dispersive process of the Rh nanoparticle is investigated in depth as an example. The in-situ detected I• radicals and CO molecules are identified to promote the breakage of Rh-Rh bonds and the formation of mononuclear complexes. The isolated Rh mononuclear complexes are immobilized by the oxygen-containing functional groups based on the effective atomic number rule. The method also provides a general strategy for the development of single-metal-site catalysts for other applications. Supported noble metal nanoclusters and single-metal-sites catalysts are inclined to aggregate into particles. Here, the authors report a general method with CO and CH3I to disperse the metal nanoparticles of Ru, Rh, Pd, Ag, Ir and Pt completely into single atoms with loading up to 5 wt%.
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Affiliation(s)
- Siquan Feng
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, China.,University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Xiangen Song
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, China.
| | - Yang Liu
- University of Chinese Academy of Sciences, 100049, Beijing, China.,Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, and shanghai Advanced Research Institute, Chinese Academy of Sciences, 201204, Shanghai, China
| | - Xiangsong Lin
- School of Materials and Textile Engineering, Jiaxing University, 314001, Jiaxing, China.
| | - Li Yan
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, China
| | - Siyue Liu
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, China
| | - Wenrui Dong
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, China
| | - Xueming Yang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, China.,Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 311231, Hangzhou, China
| | - Zheng Jiang
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, and shanghai Advanced Research Institute, Chinese Academy of Sciences, 201204, Shanghai, China.
| | - Yunjie Ding
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, China. .,Hangzhou Institute of Advanced Studies, Zhejiang Normal University, 311231, Hangzhou, China. .,State Key Laboratory of catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, China.
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Morgan K, Goguet A, Hardacre C. Metal Redispersion Strategies for Recycling of Supported Metal Catalysts: A Perspective. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00535] [Citation(s) in RCA: 121] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kevin Morgan
- CenTACat, School of Chemistry
and Chemical Engineering, Queen’s University Belfast, David
Keir Building, Stranmillis Road, Belfast, BT9 5AG, United Kingdom
| | - Alexandre Goguet
- CenTACat, School of Chemistry
and Chemical Engineering, Queen’s University Belfast, David
Keir Building, Stranmillis Road, Belfast, BT9 5AG, United Kingdom
| | - Christopher Hardacre
- CenTACat, School of Chemistry
and Chemical Engineering, Queen’s University Belfast, David
Keir Building, Stranmillis Road, Belfast, BT9 5AG, United Kingdom
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