Preparation and characterization of Ag/MnOx/perovskite catalysts for CO oxidation

被引：63

作者：

Song, KS

Kang, SK

Kim, SD

机构：

[1] Korea Inst Energy Res, Catalyt Combust Res Team, Taejon 305343, South Korea

[2] Korea Adv Inst Sci & Technol, Dept Chem Engn, Taejon 305701, South Korea

来源：

CATALYSIS LETTERS | 1997年 / 49卷 / 1-2期

关键词：

Ag; perovskite; CO oxidation; spray decomposition; Ag/MnOx/LaMnO3;

D O I：

10.1023/A:1019072314394

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 spray decomposition method with lanthanum nitrate, manganese nitrate, silver nitrate and citric acid was used to synthesize Ag-and Mn-incorporated perovskites. The resulting samples were characterized by X-ray diffraction, BET adsorption measurement, X-ray photoelectron spectroscopy, and temperature-programmed oxygen desorption (O-2-TPD) measurement. The obtained composite Ag/MnOx/perovskites catalysts exhibit higher activity by a few orders of magnitude at 338 K than that of LaMnO3. From the O-2-TPD measurement, the high activity of the Ag/MnOx/perovskites may result from the increase of weak oxygen adsorption below 373 K.

引用

页码：65 / 68

页数：4

共 18 条

[1] CATALYTIC COMBUSTION OF METHANE OVER VARIOUS PEROVSKITE-TYPE OXIDES [J].