“Copper chromite” Catalysts: XPS structure elucidation and correlation with catalytic activity

The oxidation state and composition at the surface of “copper chromite” catalysts at various stages of catalytic use and after reductive pretreatment have been studied by means of X-ray photoelectron spectroscopy (XPS). Catalytic activity for double-bond isomerization and for hydrogenation is found...

Full description

Saved in:
Bibliographic Details
Published in:Journal of electron spectroscopy and related phenomena 1982, Vol.27 (2), p.119-128
Main Authors: Capece, F.M., Castro, V.Di, Furlani, C., Mattogno, G., Fragale, C., Gargano, M., Rossi, M.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The oxidation state and composition at the surface of “copper chromite” catalysts at various stages of catalytic use and after reductive pretreatment have been studied by means of X-ray photoelectron spectroscopy (XPS). Catalytic activity for double-bond isomerization and for hydrogenation is found to be correlated with the oxidation state of copper at the surface. The XPS data support the hypothesis proposed previously that Cu(I) is the active species for the isomerization reaction, and Cu(O) for the hydrogenation of conjugated dienes.
ISSN:0368-2048
1873-2526
DOI:10.1016/0368-2048(82)85058-5