| 摘 要： | Cobalt carbide(Co_2C)was considered as potential catalysts available for large-scale industrialization of transforming syngas(H_2 and CO)to clean fuels.Herein,we successfully synthesized Co-based catalysts with MnO supported,to comprehend the effects of Co_2C for Fischer–Tropsch synthesis(FTS)under ambient conditions.The huge variety of product selectivity which was contained by different active sites(Co and Co_2C)has been found.Furthermore,density functional theory(DFT)shows that Co_2C is efficacious of CO adsorption,whereas is weaker for H adsorption than Co.Combining the advantages of Co and Co_2C,the catalyst herein can not only obtain more C_(5+)products but also suppress methane selectivity.It can be a commendable guide for the design of industrial application products in FTS.
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