Reduction study of Co3O4 model catalyst by electron microscopy

Authors
Potoczna-Petru, D Kepinski, L
Citation
D. Potoczna-petru et L. Kepinski, Reduction study of Co3O4 model catalyst by electron microscopy, CATAL LETT, 73(1), 2001, pp. 41-46
Citations number
24
Categorie Soggetti
Physical Chemistry/Chemical Physics","Chemical Engineering
Journal title
CATALYSIS LETTERS
ISSN journal
1011372X → ACNP
Volume
73
Issue
1
Year of publication
2001
Pages
41 - 46
Database
ISI
SICI code
1011-372X(2001)73:1<41:RSOCMC>2.0.ZU;2-X
Abstract
Evolution of microstructure and morphology of Co3O4 particles in the model systems during reduction in hydrogen was studied by transmission electron m icroscopy 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 epitaxi al growth of CoO and Co phases on Co3O4 during reduction was deduced from H RTEM images.