INTERACTION OF BUTENES WITH NIO-AL2O3 SIO2 CATALYST STUDIED BY ELECTRON-PARAMAGNETIC-RESONANCE/

Authors
DYREK K KIESSLING D LABANOWSKA M WENDT G WIDZISZEWSKA J
Citation
K. Dyrek et al., INTERACTION OF BUTENES WITH NIO-AL2O3 SIO2 CATALYST STUDIED BY ELECTRON-PARAMAGNETIC-RESONANCE/, Colloids and surfaces. A, Physicochemical and engineering aspects, 72, 1993, pp. 183-190
Citations number
15
Categorie Soggetti
Chemistry Physical
Journal title
Colloids and surfaces. A, Physicochemical and engineering aspects → ACNP
ISSN journal
09277757
Volume
72
Year of publication
1993
Pages
183 - 190
Database
ISI
SICI code
0927-7757(1993)72:<183:IOBWNS>2.0.ZU;2-9
Abstract
Interaction of butenes with the surface of an NiO-Al2O3/SiO2 catalyst has been studied by electron paramagnetic resonance. It was found that Ni+ ions situated at the surface exhibit D3h symmetry and form Ni+-bu tene complexes. The presence of Al2O3 led to the interaction of butene s with Al3+ Lewis acid centres. The occupancy of both kinds of adsorpt ion centres changes with temperature and pressure.