Promotion of Fe3O4/Cr2O3 high temperature water gas shift catalyst

被引：160

作者：

Rhodes, C

Williams, BP

King, F

Hutchings, GJ

机构：

[1] Cardiff Univ, Dept Chem, Cardiff CF10 3TB, S Glam, Wales

[2] Synetix Ltd, Billingham TS23 1LB, Cleveland, England

来源：

CATALYSIS COMMUNICATIONS | 2002年 / 3卷 / 08期

关键词：

D O I：

10.1016/S1566-7367(02)00156-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The promotion of Fe3O4/Cr2O3 high temperature water gas shift catalysts is described and discussed. Catalysts containing 2 wt% B, Cu, Ba, Pb, Hg and Ag are prepared by co-precipitation. B is found to poison the activity slightly whereas the other additives did increase the activity, with the relative order being Hg > Ag, Ba > Cu > Pb > unpromoted > B. The promoters decrease the activation energy of the catalyst, but the data give a linear relationship for the Constable-Cremer plot and it is concluded that CO adsorption is an important factor controlling activity. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：381 / 384

页数：4

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