文献类型：期刊文献

英文题名：Ethanol synthesis from syngas on Mn- and Fe-promoted Rh/γ-Al2O3

作者：Li, Fang[1,2];Ma, Hongfang[1];Zhang, Haitao[1];Ying, Weiyong[1];Fang, Dingye[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Minist Educ, Engn Res Ctr Large Scale Reactor Engn & Technol, Shanghai 200237, Peoples R China;[2]Anhui Polytech Univ, Sch Biochem Engn, Wuhu 241000, Anhui, Peoples R China

年份：2014

卷号：17

期号：11

起止页码：1109

外文期刊名：COMPTES RENDUS CHIMIE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000346756400008)】；

基金：This work is financially supported by the State Science & Technology Support Program of China (No. 2007BAA08B04).

语种：英文

外文关键词：Alumina-supported rhodium catalysts; Manganese and iron promoter; CO hydrogenation; DRIFTS

摘要：The catalytic hydrogenation of CO was studied over Mn- and/or Fe-promoted Rh/gamma-Al2O3 catalysts. The catalysts were characterized by means of XRD, BET, H-2-TPR center dot H-2-TPD, XPS and DRIFTS. CO hydrogenation results showed that the doubly Mn- and Fe-promoted Rh/gamma-Al2O3 catalysts exhibited superior catalytic activity and better ethanol selectivity. The DRIFTS results showed that Mn promoter stabilized the adsorbed CO on Rh+ and Fe stabilized adsorbed CO on Rh+ and Rh-0, especially Rh-0. The fact that doubly Mn- and Fe-promoted Rh/gamma-Al2O3 owned more (Rhx(0)-Rhy(+))-O-Fe3+center dot(Fe2+) active species was proposed to be a crucial factor accounting for its higher ethanol selectivity. (C) 2014 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.