The Oxidation of Methane at Low Temperatures Over Zirconia-Supported Pd, Ir and Pt Catalysts and Deactivation by Sulfur Poisoning

被引:39
作者
Ohtsuka, Hirofumi [1 ]
机构
[1] Osaka Gas Co Ltd, Energy Technol Labs, Konohana Ku, Osaka 5540051, Japan
关键词
Platinum; Iridium; Methane; Catalytic oxidation; X-ray absorption fine structure; COMBUSTION; PLATINUM; EMISSIONS; ABATEMENT; PT/AL2O3; WATER; OXIDE;
D O I
10.1007/s10562-010-0506-x
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 oxidation of methane over zirconia-supported Pd, Ir, and Pt catalysts at low temperatures under an oxidizing atmosphere and the effect of SO2 on this reaction were investigated. An Ir-Pt/ZrO2 catalyst exhibited high activity and low deactivation by SO2. Characterization of the catalyst indicated the presence of a highly oxidized Pt species that was stabilized by the addition of Ir.
引用
收藏
页码:413 / 419
页数:7
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