ELECTRON-DONATING, ACID-BASE AND CATALYTIC PROPERTIES OF PEROVSKITE-TYPE MIXED OXIDES OF RARE-EARTHS

Authors
SUGUNAN S MEERA V
Citation
S. Sugunan et V. Meera, ELECTRON-DONATING, ACID-BASE AND CATALYTIC PROPERTIES OF PEROVSKITE-TYPE MIXED OXIDES OF RARE-EARTHS, Collection of Czechoslovak Chemical Communications, 60(6), 1995, pp. 977-982
Citations number
21
Categorie Soggetti
Chemistry
Journal title
Collection of Czechoslovak Chemical Communications → ACNP
ISSN journal
00100765
Volume
60
Issue
6
Year of publication
1995
Pages
977 - 982
Database
ISI
SICI code
0010-0765(1995)60:6<977:EAACPO>2.0.ZU;2-U
Abstract
The electron donor properties of perovskite-type mixed oxides (LaFeO3, PrFeO3, SmFeO3, LaCoO3, PrCoO3, SmCoO3, LaNiO3, PrNiO3 and SmNiO3) we re studied based on the adsorption of electron accepters exhibiting di fferent electron affinity viz. 7,7,8,8-tetracyanoquinodimethane, 2,3,5 ,6-tetrachloro-1,4-benzoquinone, p-dinitrobenzene, and m-dinitrobenzen e. The surface acidity/basicity of the oxides was determined using a s et of Hammett indicators. The data were correlated with the catalytic activity of the oxides for the reduction of cyclohexanone with 2-propa nol.