碳纳米管负载的钴催化剂在费托合成反应中的粒子尺寸效应(英文)

查看全文 作　　者：Ali Nakhaei [1]Pour;Elham [1]Hosaini;Mohammad [1]Izadyar;Mohammad Reza [1]Housaindokht

机构地区：[1]Department of Chemistry,Ferdowsi University of Mashhad

出　　处：《催化学报》索引2015年第36卷第8期,共7页

摘　　要：The effect of Co particle size on the Fischer-Tropsch synthesis(FTS) activity of carbon nanotube(CNT)-supported Co catalysts was investigated. Microemulsion(using water-to-surfactant molar ratios of 2 to12) and impregnation techniques were used to prepare catalysts with different Co particle sizes. Kinetic studies were performed to understand the effect of Co particle size on catalytic activity. Size-dependent kinetic parameters were developed using a thermodynamic method, to evaluate the structural sensitivity of the CNT-supported Co catalysts. The size-independent FTS reaction rate constant and size-independent adsorption parameter increased with increasing reaction temperature. The Polani parameter also depended on catalyst particle size, because of changes in the catalyst surface coverage. 关键词：钴催化剂碳纳米管费托合成粒径负载动力学参数反应速率常数菲

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碳纳米管负载的钴催化剂在费托合成反应中的粒子尺寸效应(英文)

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