The effect of sulphur containing pollutants on the oxidation activity of precious metals used in vehicle exhaust catalysts

被引：53

作者：

Meeyoo, V

Trimm, DL ^{[1
]}

Cant, NW

机构：

[1] Univ New S Wales, Sch Chem Engn & Ind Chem, Sydney, NSW 2052, Australia

[2] Macquarie Univ, Sch Chem, Sydney, NSW 2109, Australia

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 1998年 / 16卷 / 02期

关键词：

sulphur poisoning; precious metal poisoning; methane oxidation over precious metals; palladium; platinum; rhodium;

D O I：

10.1016/S0926-3373(97)00094-5

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 effect of traces of hydrogen sulphide and of sulphur dioxide on the oxidation of methane over supported precious metals has been examined. Both gases inhibited catalytic oxidation over Pd and Ph, apparently as a result of sulphate formation. However, the catalytic activity of platinum was slightly enhanced by the pollutants. (C) 1998 Elsevier Science B.V.

引用

页码：L101 / L104

页数：4

共 11 条

[1]

*ACS, 1994, ACS S SER, V552

[2]

BARNES GJ, 1987, 870093 SAE

[3] Conversion of various hydrocarbons over supported Pd during simulated cold-start conditions [J].