Reduction study of Co3O4 model catalyst by electron microscopy

被引：90

作者：

Potoczna-Petru, D ^{[1
]}

Kepinski, L ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw 2, Poland

来源：

CATALYSIS LETTERS | 2001年 / 73卷 / 01期

关键词：

Co3O4; reduction; model catalyst; nanostructures; TEM; HRTEM;

D O I：

10.1023/A:1009022202448

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：

Evolution of microstructure and morphology of Co3O4 particles in the model systems during reduction in hydrogen was studied by transmission electron microscopy methods. Based on SAED and HRTEM results we found that the degree of reduction of Co3O4 strongly depends on the particle size and morphology, which are determined by the pretreatment conditions. Preferential epitaxial growth of CoO and Co phases on Co3O4 during reduction was deduced from HRTEM images.

引用

页码：41 / 46

页数：6

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