EXAFS STUDY OF NI-MO AL2O3 HYDRODESULFURIZATION CATALYSTS/

Authors
UMEKI T MATSUDA S AKAI Y MATUBAYASHI N NOMURA M TAKYU T
Citation
T. Umeki et al., EXAFS STUDY OF NI-MO AL2O3 HYDRODESULFURIZATION CATALYSTS/, JPN J A P 1, 32, 1993, pp. 469-471
Citations number
6
Categorie Soggetti
Physics, Applied
Journal title
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS → ACNP
Volume
32
Year of publication
1993
Supplement
32-2
Pages
469 - 471
Database
ISI
SICI code
Abstract
Ni promoter effect on the structure and the sulfiding state of Mo phas e in Ni-Mo/Al2O3 catalysts were studied using Temperature Programmed S ulfiding (TPS) and XAFS. The results for TPS and Mo-K edge EXAFS sugge st that Ni addition promotes the sulfiding of Mo phase and the growth of MoS2-like species in the horizontal direction. Ni-K edge XAFS resul ts for sulfided catalysts show that most of Ni atoms may exist as oxid ic state.