Structural Sensitivity of the Oxidation Reactions Catalyzed by Dispersed Transition Metal Oxides: Role of Defect Structure Full article
| Conference |
3rd World Congress on Oxidation Catalysis 21-26 Sep 1997 , San Diego |
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| Source | Proceedings of the 3rd World Congress on Oxidation Catalysis, 21-26 September 1997, San Diego, CA, U.S.A. Compilation, Elsevier B.V.. 1997. 1248 c. ISBN 9780444827722. |
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| Journal |
Studies in Surface Science and Catalysis
ISSN: 0167-2991 |
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| Output data | Year: 1997, Volume: 110, Pages: 1155-1164 Pages count : 10 DOI: 10.1016/S0167-2991(97)81082-8 | ||
| Tags | MECHANICAL ACTIVATION; GOETHITE; ENERGIES | ||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | International Science Foundation | RPV000 |
| 2 | International Science Foundation | RPV300 |
Abstract:
Structural sensitivity manifestation for reactions of catalytic oxidation on transition metal oxides depends on the atomic structure of the surface planes, types and densities of the surface/bulk defects, and structure flexibility. Structural sensitivity of the catalytic reactions is one of the most important problems in heterogeneous catalysis. It has been rather thoroughly studied for metals, while for oxides, especially for dispersed ones, situation is far less clear, because of inherent complexity of studies of their bulk and surface atomic structure. In recent years, successful development of such methods as high resolution electron microscopy (HREM) and scanning tunneling microscope (STM) along with the infrared spectroscopy of test molecules have formed a sound bases for elucidating this problem in case of oxides. This chapter discusses the results of the systematic studies of the bulk/surface defect structure of the oxides of copper, iron, cobalt, chromium, manganese as related to structural sensitivity of the reactions of carbon monoxide and hydrocarbons oxidation. Surface coordinatively unsaturated centers have been studied by the infrared spectroscopy of adsorbed test molecules (CO, NO) and heats of oxygen adsorption and amounts of weakly bound oxygen have been determined. Catalytic properties in the reactions of carbon monoxide oxidation (all oxides) and butene oxidative dehydrogenation (iron oxides) were studied, using a microreactor with the vibrofluidized bed of catalysts and pulse/flow kinetic installation. Catalytic activities were characterized by the reaction rate W (molec. CO/m2s) in differential conditions and first-order rate constant K (dm3 butene (STP)/m2.s.atm), respectively.
Cite:
Sadykov V.A.
, Tikhov S.F.
, Tsybulya S.V.
, Kryukova G.N.
, Veniaminov S.A.
, Kolomiichuk V.N.
, Bulgakov N.N.
, Isupova L.A.
, Paukshtis E.A.
, Zaikovskii V.I.
, Kustova G.N.
, Burgina E.B.
Structural Sensitivity of the Oxidation Reactions Catalyzed by Dispersed Transition Metal Oxides: Role of Defect Structure
In compilation Proceedings of the 3rd World Congress on Oxidation Catalysis, 21-26 September 1997, San Diego, CA, U.S.A.. – Elsevier B.V.., 1997. – C.1155-1164. – ISBN 9780444827722. DOI: 10.1016/S0167-2991(97)81082-8 WOS Scopus РИНЦ OpenAlex ANCAN
Structural Sensitivity of the Oxidation Reactions Catalyzed by Dispersed Transition Metal Oxides: Role of Defect Structure
In compilation Proceedings of the 3rd World Congress on Oxidation Catalysis, 21-26 September 1997, San Diego, CA, U.S.A.. – Elsevier B.V.., 1997. – C.1155-1164. – ISBN 9780444827722. DOI: 10.1016/S0167-2991(97)81082-8 WOS Scopus РИНЦ OpenAlex ANCAN
Dates:
| Published print: | Jan 1, 1997 |
| Published online: | Sep 2, 2007 |
Identifiers:
| ≡ Web of science: | WOS:000071441200117 |
| ≡ Scopus: | 2-s2.0-0008060323 |
| ≡ Elibrary: | 15055876 |
| ≡ OpenAlex: | W1600179135 |
| ≡ Chemical Abstracts: | 1998:93421 |
| ≡ Chemical Abstracts (print): | 128:132837 |