EFFECTIVE DISPERSION OF CO IN CO-MO AL2O3 INDUCED BY HIGH-PRESSURE SULFIDING BY MEANS OF FT-IR USING NO AS SURFACE PROBE MOLECULE/

Authors
KOIZUMI N IIJIMA M KASAHARA S YAMADA M
Citation
N. Koizumi et al., EFFECTIVE DISPERSION OF CO IN CO-MO AL2O3 INDUCED BY HIGH-PRESSURE SULFIDING BY MEANS OF FT-IR USING NO AS SURFACE PROBE MOLECULE/, Chemistry Letters, (9), 1996, pp. 815-816
Citations number
6
Categorie Soggetti
Chemistry
Journal title
Chemistry Letters → ACNP
ISSN journal
03667022
Issue
9
Year of publication
1996
Pages
815 - 816
Database
ISI
SICI code
0366-7022(1996):9<815:EDOCIC>2.0.ZU;2-F
Abstract
The surface structure of Co-Mo/Al2O3 sulfided in-situ at high pressure (less than or equal to 5 MPa) was characterized by FT-IR/DRA method us ing NO as a probe molecule. The ratio of the band intensity of NO adso rbed on Co site to that of Mo site increased, when Co-Mo/Al2O3 was sul fided at the pressure above 1.1 MPa. Combining the results with those found on catalysts varying the Co/Mo molar ratio, it was suggested tha t Co site is more effectively dispersed on Mo site by higher pressure sulfiding.