Pt/Al2O3 and Pt/Ba-Al2O3 catalysts studied by temperature programmed desorption of oxygen:: Evidence for a low temperature desorbing species

被引：9

作者：

Labalme, V ^{[1
]}

Guilhaume, N ^{[1
]}

Garbowski, E ^{[1
]}

Primet, M ^{[1
]}

机构：

[1] Univ Lyon 1, CNRS, UMR 5634, LACE, F-69622 Villeurbanne, France

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 1998年 / 64卷 / 02期

关键词：

platinum; alumina; oxygen; desorption;

D O I：

10.1007/BF02475336

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：

For fresh and aged Pt/Al2O3 catalysts, TPD of oxygen is fairly well related to the noble metal surface areas and to the catalytic activity in butane combustion, whereas for aged Pt/Ba-Al2O3 solids, the catalytic activity is still preserved despite a tremendous sintering of the metallic phase and seems to be connected to a surface barium superoxide.

引用

页码：207 / 214

页数：8

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