IR, TPR AND CHEMISORPTION STUDY OF ALUMINA-SUPPORTED COBALT CATALYSTS

Authors
TODOROVA S ZHELYAZKOV V KADINOV G
Citation
S. Todorova et al., IR, TPR AND CHEMISORPTION STUDY OF ALUMINA-SUPPORTED COBALT CATALYSTS, Reaction kinetics and catalysis letters, 57(1), 1996, pp. 105-110
Citations number
9
Categorie Soggetti
Chemistry Physical
Journal title
Reaction kinetics and catalysis letters → ACNP
ISSN journal
01331736
Volume
57
Issue
1
Year of publication
1996
Pages
105 - 110
Database
ISI
SICI code
0133-1736(1996)57:1<105:ITACSO>2.0.ZU;2-N
Abstract
Decomposition of cobalt nitrate on alumina in air or hydrogen leads to the formation of different cobalt oxide phases. Chemisorption of Hz a nd IR spectra of adsorbed CO show that for the catalyst pretreated in H-2 the reduction to metallic cobalt occurs at T>573 K and results in lower metal dispersity. Formation of cobalt particles of different sur face structures is proposed depending on the pretreatment mode.