Changes in the oxidation state of transition metal containing MCM-41 during deNO(x) reactions

被引：13

作者：

Jentys, A

Schiesser, W

Vinek, H

机构：

来源：

CATALYSIS LETTERS | 1997年 / 47卷 / 3-4期

关键词：

Co/MCM-41; Pt/MCM-41; Rh/MCM-41; in situ XANES; deNO(x) catalysis;

D O I：

10.1023/A:1019085828082

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 state of Co, Pt and Rh containing MCM-41 after co-adsorption of NO, CH4, and O-2 in the presence of water vapor was studied by in situ XANES experiments. All catalysts were oxidized after the adsorption of NO and reduced after the coadsorption of NO and CH4. The presence of water vapor did not influence the oxidation/reduction of Rh/MCM-41 and Pt/MCM-41,while Co/MCM-41 was oxidized by the presence of H2O at reaction temperature.

引用

页码：193 / 198

页数：6

共 23 条

[21]

NOMURA M, 1996, SERIES SYNCHROTRON R, V2, P93

[22] CURVE FITTING ANALYSIS OF NEAR-EDGE CORE EXCITATION-SPECTRA OF FREE, ADSORBED, AND POLYMERIC MOLECULES [J].