Abstract: New arguments are presented confirming the earlier proposed hypothesis of the possible concerted mechanism of the C-S bond hydrogenolysis on sulfide bimetallic catalysts of hydrodesulfurization. The notions developed are based on the concept of the unified nature of homogeneous, heterogeneous, and enzymatic catalysis, The following peculiarities characterize the mechanism proposed: (a) the reaction takes place in the coordination sphere of the bimetallic active site that enters the composition of the electroneutral molecule of an active component, and the anionic vacancies of sulfide catalysts do not contribute in catalysis; and (b) chemisorption and activation of a sulfur-containing molecule occur on Ni (or Co) atoms, whereas dissociative H-2 chemisorption takes place on terminal sulfur atoms bounding the structure of the bimetallic active component. The possible mechanism of electron and proton transfer during the catalytic process is discussed.

Cite: Startsev A.N.
Concerted Mechanism of Thiophene Hydrogenolysis on Sulfide Hydrodesulfurization Catalysts
Kinetics and Catalysis. 1995. V.36. N4. P.471-478. WOS РИНЦ ANCAN

Original: Старцев А.Н.
Концертный механизм гидрогенолиза тиофена на сульфидных катализаторах гидрообессеривания
Кинетика и катализ. 1995. Т.36. №4. С.515-522. РИНЦ

Dates:

Submitted:

May 23, 1994

Identifiers:

Web of science:	WOS:A1995RV49500006
Elibrary:	30595848
Chemical Abstracts:	1995:822586
Chemical Abstracts (print):	124:8085

Citing:

DB	Citing
Elibrary	2