Redox processes in Sb-containing mixed oxides used in oxidation catalysis I. Tin dioxide assisted antimony oxidation in solid state

被引：23

作者：

Caldararu, M

Thomas, MF

Bland, J

Spranceana, D

机构：

[1] Romanian Acad, Inst Phys Chem, Bucharest 77208, Romania

[2] Univ Liverpool, Dept Phys, Liverpool L69 7ZE, Merseyside, England

来源：

APPLIED CATALYSIS A-GENERAL | 2001年 / 209卷 / 1-2期

关键词：

tin-antimony catalysts; tin dioxide; oxidation catalysis; Mossbauer spectroscopy;

D O I：

10.1016/S0926-860X(00)00776-6

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 stability of the oxidation state of antimony ion in Sn-Sb-O catalysts under the influence of operating conditions was investigated by Mossbauer spectroscopy. It was shown that the presence of the tin dioxide matrix facilitates the oxidation of the antimony ion; at the same time, the Sb5+ ions in the SnO2 rutile matrix show much higher stability under slightly reducing conditions provided by the catalytic test of propylene oxidation. (C) 2001 Elsevier Science B.V. All rights reserved.

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页码：383 / 390

页数：8

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