文献类型：期刊文献

英文题名：In Situ-DRIFTS Study of Rh Promoted CuCo/Al2O3 for Ethanol Synthesis via CO Hydrogenation

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：35

期号：9

起止页码：2726

外文期刊名：BULLETIN OF THE KOREAN CHEMICAL SOCIETY

收录：;EI(收录号：20151500737602);WOS:【SCI-EXPANDED(收录号:WOS:000342332500024)】；

基金：This work is financially supported by the National Science and Technology Supporting Plan (2006BAE02B02).

语种：英文

外文关键词：Copper-cobalt; Rhodium; DRIFTS; CO hydrogenation; Ethanol

摘要：The promoting effect of rhodium on the structure and activity of the supported Cu-Co based catalysts for CO hydrogenation was investigated in detail. The samples were characterized by DRIFTS, N-2-adsorption, XRD, H-2-TPR, H-2-TPD and XPS. Tilt results indicated that the introduction of rhodium to Cu-Co catalysts resulted in modification of metal dispersion, reducibility and crystal structure. DRIFTS results of CO hydrogenation at reaction condition (P=2 MPa, T=260 degrees C) indicated the addition of 1 wt % rhodium improved hydrogenation ability of Cu-Co catalysts. The ethanol selectivity and CO conversion were both improved by 1 wt % Rh promoted Cu-Co based catalysts. The alcohol distribution over un-promoted and rhodium promoted Cu-Co based catalysts obeys A-S-F rule and higher chain growth probability was got on rhodium promoted catalyst.