Methane combustion activity of unsupported PdO-ZrO2 binary oxides

被引：7

作者：

Jalal, Samed Ahmed ^{[1
]}

Zhang, Dong-Jie ^{[1
]}

Machida, Masato ^{[1
]}

机构：

[1] Kumamoto Univ, Grad Sch Sci & Technol, Dept Nano Sci & Technol, Kumamoto 8608555, Japan

来源：

CATALYSIS COMMUNICATIONS | 2008年 / 10卷 / 02期

关键词：

Palladium; Methane; Catalytic combustion; Redox;

D O I：

10.1016/j.catcom.2008.08.016

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：

Methane combustion activity of unsupported PdO-nZrO(2) binary oxides (0 <= n <= 2) was studied in connection with the reduction/reoxidation behavior of Pd. The addition of small amount of ZrO2 (n = 0.1) significantly improved the catalyst light-off characteristics by accelerating the reoxidation step in the redox cycles of Pd species. The effect would be associated with the formation of highly oxidized Pd species on the PdO/ZrO2 interface, which may increase the rate of oxygen exchange between gas and solid phases. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：192 / 195

页数：4

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