Sulphide Catalysts on Silica as a Support. III. X-ray Photoelectron Spectroscopy Study Full article
Journal |
Applied Catalysis (up to 1991)
ISSN: 0166-9834 |
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Output data | Year: 1984, Volume: 11, Number: 1, Pages: 29-34 Pages count : 6 DOI: 10.1016/S0166-9834(00)84037-3 | ||
Tags | ORGANOMETALLICS; SILICA; SPECTROSCOPIC ANALYSIS | ||
Authors |
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Abstract:
Sulphide (Ni,W)/SiO2 and (Ni,MO)/SiO2 catalysts prepared by decomposition of surface organometallic complexes in H2S have been studied by X-ray photoelectron spectroscopy. The binding energy of electrons in the Ni 2p3/2 level has been found to increase simultaneously with decrease of that on W 4f7/2 (Mo 3d5/2) level in bimetallic catalysts, compared with the corresponding values for monometallic sulphide catalysts. This effect is ascribed to the partial transfer of electron density from nickel atoms onto tungsten (molybdenum) atoms through the formation of mixed surface sulphides. A shift in the binding energies of Ni 2p3/2 and W 4f7/2 levels in supported catalysts in comparison with those in bulk sulphides is suggested to be evidence of chemical interaction between the supported sulphides and the silica surface.
Cite:
Shepelin A.P.
, Zhdan P.A.
, Burmistrov V.A.
, Startsev A.N.
, Yermakov Y.I.
Sulphide Catalysts on Silica as a Support. III. X-ray Photoelectron Spectroscopy Study
Applied Catalysis (up to 1991). 1984. V.11. N1. P.29-34. DOI: 10.1016/S0166-9834(00)84037-3 WOS Scopus РИНЦ
Sulphide Catalysts on Silica as a Support. III. X-ray Photoelectron Spectroscopy Study
Applied Catalysis (up to 1991). 1984. V.11. N1. P.29-34. DOI: 10.1016/S0166-9834(00)84037-3 WOS Scopus РИНЦ
Dates:
Submitted: | Jul 5, 1983 |
Accepted: | Nov 25, 1983 |
Published print: | Jan 1, 1984 |
Published online: | Oct 2, 2001 |
Identifiers:
Web of science | WOS:A1984TD12300003 |
Scopus | 2-s2.0-0021455429 |
Elibrary | 22694464 |
Chemical Abstracts | 1984:498364 |
Chemical Abstracts (print) | 101:98364 |
OpenAlex | W2074994628 |