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Construction of Metal-Promoter (Support) Interfaces within Rh based Catalyst for Direct Synthesis of C2 Oxygenates from Syngas
Author NameAffiliationE-mail
CHEN Wei-Miao Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China  
SONG Xian-Gen Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China  
DING Yun-Jie Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China
State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, China 		dyj@dicp.ac.cn 
Abstract: It is of great significance to produce C2 oxygenated compounds such as ethanol directly from CO hydrogenation via coal, natural gas or biomass that can replace the traditional oil and food routes. The supported promoted-Rh is the most effective catalyst to realize this transformation. The Rh-promoter (support) contact interfaces are the active sites for the formation of C 2 oxygenates from syngas, thus the contact interface areas directly determines the performance of the catalyst. Therefore, recently many researchers have been working on various physical or chemical methods to improve the preparation process of Rh-based catalysts to maximize the metal-promoter interfaces. In this paper, the principle, process, advantages and disadvantages of these methods (coating, formation of composite oxide or alloy, strong electrostatic adsorption, controlled surface reaction method and atomic layer deposition) are briefly introduced and reviewed. Through the combination of the above synthesis methods, it is possible to prepare the catalysts with uniform distribution of well-defined active sites at the interface.
Keywords: CO hydrogenation  C2-oxygenates  Rh  metal-promoter interface  construction strategy
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CHEN Wei-Miao,SONG Xian-Gen,DING Yun-Jie.Construction of Metal-Promoter (Support) Interfaces within Rh based Catalyst for Direct Synthesis of C2 Oxygenates from Syngas[J].Chinese Journal of Inorganic Chemistry,2020,36(11):2005-2013.
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Chinese Journal of Inorganic Chemistry