Concerted Mechanisms in Heterogeneous Catalysis by Sulfides Review
Conference |
Molecular Aspects of Catalysis by Sulfides : International Symposium 06-08 Oct 1998 , St. Petersburg |
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Journal |
Journal of Molecular Catalysis A: Chemical
ISSN: 1381-1169 |
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Output data | Year: 2000, Volume: 152, Number: 1-2, Pages: 1-13 Pages count : 13 DOI: 10.1016/S1381-1169(99)00423-9 | ||
Tags | Acid-base catalysis, Active center structure, Concerted mechanism, Hydrodesulfurization, Hydrogen activation, Occluded hydrogen, Oxidative addition of dihydrogen, Sulfide catalysts | ||
Authors |
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Affiliations |
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Funding (1)
1 | Russian Foundation for Basic Research | 97-03-32568 |
Abstract:
This paper summarizes some new evidence for the possibility of concerted mechanisms in the heterogeneous catalysis by sulfides. Several aspects are discussed: main regularities of thiophene and THT hydrogenolysis mediated by the well-characterized sulfide catalysts of different composition; electronic structure of the metals entering into the composition of the active component of both bulk and supported sulfide catalysts; mechanism of the active centers formation cased by the oxidative addition of dihydrogen to the active Ni (Co) metals and occlusion of hydrogen atoms into the MoS2 matrix; mechanism of the homolytic hydrogen adsorption on the sulfide hydrotreating catalysts; synchronous interaction of the reactive molecules in the coordination sphere of the bimetallic active centers — proton and electron transfer; use of the energy released during exothermic reaction steps in the catalytic cycle. Catalytic transformations over the sulfide HDS catalysts are considered to belong to the acid–base catalysis. The profound identity of the mechanisms of heterogeneous, homogeneous and enzyme catalysis is discussed.
Cite:
Startsev A.N.
Concerted Mechanisms in Heterogeneous Catalysis by Sulfides
Journal of Molecular Catalysis A: Chemical. 2000. V.152. N1-2. P.1-13. DOI: 10.1016/S1381-1169(99)00423-9 WOS Scopus РИНЦ
Concerted Mechanisms in Heterogeneous Catalysis by Sulfides
Journal of Molecular Catalysis A: Chemical. 2000. V.152. N1-2. P.1-13. DOI: 10.1016/S1381-1169(99)00423-9 WOS Scopus РИНЦ
Dates:
Published print: | Mar 1, 2000 |
Published online: | May 19, 2000 |
Identifiers:
Web of science | WOS:000085805200001 |
Scopus | 2-s2.0-0034145089 |
Elibrary | 13357976 |
Chemical Abstracts | 2000:187764 |
Chemical Abstracts (print) | 132:209918 |
OpenAlex | W1986349899 |