文献类型：期刊文献

中文题名：Iron-based Fischer–Tropsch synthesis of lower olefins: The nature of χ-Fe_5C_2 catalyst and why and how to introduce promoters

英文题名：Iron-based Fischer–Tropsch synthesis of lower olefins: The nature of χ-Fe_5C_2 catalyst and why and how to introduce promoters

作者：Di Wang[1,2];Bingxu Chen[1];Xuezhi Duan[1];De Chen[2];Xinggui Zhou[1]

机构：[1]State Key Laboratory of Chemical Engineering, East China University of Science and Technology;[2]Department of Chemical Engineering, Norwegian University of Science and Technology

年份：2016

卷号：25

期号：6

起止页码：911

中文期刊名：Journal of Energy Chemistry

外文期刊名：能源化学（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2015_2016】；

基金：supported by the Natural Science Foundation of China (21306046);the Open Project of State Key Laboratory of Chemical Engineering (SKL-Che-15C03);the Fundamental Research Funds for the Central Universities (WA1514013);the 111 Project of Ministry of Education of China (B08021);supported by the China Scholarship Council (CSC) for the research at Norwegian University of Science and Technology (NTNU)

语种：英文

中文关键词：Carbides;Catalyst deactivation;Catalysts;Iron;Olefins;Phase composition

外文关键词：Carbides;Catalyst deactivation;Catalysts;Iron;Olefins;Phase composition

摘要：As a sustainable and short-flow process, iron-catalyzed direct conversion of CO-rich syngas to lower olefins without intermediate steps, i.e., Fischer–Tropsch-to-Olefins (FTO), has received increasing attention. However, its fundamental understanding is usually limited by the complex crystal phase composition in addition to the interferences of the promoter effects and inevitable catalyst deactivation. Until recently, the combination of multiple in-situ/ex-situ characterizations and theoretical studies has evidenced H?gg iron carbide (χ-Fe5C2) as the dominant active phase of iron-based Fischer–Tropsch catalysts. This perspective attempts to review and discuss some recent progresses on the nature of χ-Fe5C2catalyst and the crucial effects of promoters on the FTO performance from theoretical and experimental viewpoints, aiming to provide new insights into the rational design of iron-based FTO catalysts. ? 2016 Science Press
As a sustainable and short-flow process, iron-catalyzed direct conversion of CO-rich syngas to lower olefins without intermediate steps, i.e., Fischer–Tropsch-to-Olefins (FTO), has received increasing attention. However, its fundamental understanding is usually limited by the complex crystal phase composition in addition to the interferences of the promoter effects and inevitable catalyst deactivation. Until recently, the combination of multiple in-situ/ex-situ characterizations and theoretical studies has evidenced H?gg iron carbide (χ-Fe5C2) as the dominant active phase of iron-based Fischer–Tropsch catalysts. This perspective attempts to review and discuss some recent progresses on the nature of χ-Fe5C2catalyst and the crucial effects of promoters on the FTO performance from theoretical and experimental viewpoints, aiming to provide new insights into the rational design of iron-based FTO catalysts. ? 2016 Science Press