The effect of promoters on Pt/Al2O3 catalysts for the reduction of NO by C3H6 under lean-burn conditions

被引：130

作者：

Burch, R

Watling, TC

机构：

[1] Catalysis Research Centre, Chemistry Department, University of Reading, Whiteknights, Reading

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 1997年 / 11卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

lean deNO(x); promoters; Pt/Al2O3;

D O I：

10.1016/S0926-3373(96)00043-4

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 [物理化学]; 081704 [应用化学];

摘要：

A series of Pt/Al2O3 catalysts promoted by metal oxides (Ba, Ce, Co, Cs, Cu, K, La, Mg, Mo, Ti) or noble metals (Ag, Au, Pd, Rh) were prepared and tested for the lean NO, reaction using C3H6 as a reductant. The promoters have a significant effect (beneficial or otherwise) on the activity and temperature range of operation of Pt/Al2O3, but have no significant effect on the N-2/N2O selectivity. The similarity in behaviour of the promoted catalysts and unpromoted Pt/Al2O3 suggests that the reaction mechanism was similar for all the catalysts tested.

引用

页码：207 / 216

页数：10

共 17 条

[1]

AN FTIR STUDY OF THE SPECIES ADSORBED ON A RH/AL2O3 CATALYST IN THE SELECTIVE REDUCTION OF NO BY PROPYLENE [J].