Back to Search
Start Over
The phase composition and reduction of CoO-Al2O3, MoO3-Al2O3, and CoO-MoO3-A12O3 catalysts
- Source :
- Russian Chemical Bulletin; October 1978, Vol. 27 Issue: 10 p1965-1972, 8p
- Publication Year :
- 1978
-
Abstract
- 1.The method of photoelectron spectroscopy has been used to show that the Co and Mo ions of CoO-MoO<subscript>3</subscript>-Al<subscript>2</subscript>O<subscript>3</subscript> catalysts interact with the ?-Al<subscript>2</subscript>O<subscript>3</subscript> lattice, the Mo ions blocking the penetration of the Co ions. Formation of metallic Co promotes extensive Mo ion reduction.2.Thermal treatment of the CoO-MoO<subscript>3</subscript>-Al<subscript>2</subscript>O<subscript>3</subscript> catalyst in air tends to enrich the surface with respect to Mo ions, while reduction enriches the surface with respect to Co ions.3.Oxidational treatment of the CoO-MoO<subscript>3</subscript>-Al<subscript>2</subscript>O<subscript>3</subscript> and MoO<subscript>3</subscript>-Al<subscript>2</subscript>O<subscript>3</subscript> catalysts is required for formation of anthracene radical-cations. A description is given of an oxidizing center structure which accounts for the reduction in acceptor activity of the Mo<superscript>6+</superscript> ions in the ternary system.
Details
- Language :
- English
- ISSN :
- 10665285 and 15739171
- Volume :
- 27
- Issue :
- 10
- Database :
- Supplemental Index
- Journal :
- Russian Chemical Bulletin
- Publication Type :
- Periodical
- Accession number :
- ejs16674053
- Full Text :
- https://doi.org/10.1007/BF00946507