Oxidative addition of dihydrogen to the bimetallic sulfide catalysts: evidence by X-ray photoelectron spectroscopy

Reversible transformations Ni(IV)↔Ni(II) in alumina and Sibunit supported (Ni,Mo) sulfide catalysts were observed after in situ thermal treatment of catalysts in an X-ray photoelectron spectrometer chamber. The phenomenon is interpreted as a reductive elimination of occluded hydrogen under low press...

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Bibliographic Details
Published in:Journal of molecular catalysis. A, Chemical Chemical, 2000-02, Vol.151 (1), p.171-177
Main Authors: Startsev, A.N., Kalinkin, A.V., Zakharov, I.I., Aksenov, D.G., Parmon, V.N.
Format: Article
Language:English
Subjects:
Oxidative addition of hydrogen
Sulfide HDS catalysts
X-ray photoelectron spectroscopy
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Summary:Reversible transformations Ni(IV)↔Ni(II) in alumina and Sibunit supported (Ni,Mo) sulfide catalysts were observed after in situ thermal treatment of catalysts in an X-ray photoelectron spectrometer chamber. The phenomenon is interpreted as a reductive elimination of occluded hydrogen under low pressure and high temperature, and oxidative addition of hydrogen after catalyst treatment with an (H 2+H 2S) mixture.
ISSN:1381-1169
1873-314X
DOI:10.1016/S1381-1169(99)00237-X