Effect of Thermal Treatment Conditions on the Phase Composition and Structural Characteristics of V–Mo–Nb–O Catalysts Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2009, Volume: 50, Number: 1, Pages: 48-56 Pages count : 9 DOI: 10.1134/S0023158409010078 | ||
| Tags | Interplanar Spacing; Molybdenum Oxide; Ammoxidation; Ammonium Metavanadate; Differential Dissolution | ||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Russian Foundation for Basic Research | 05-03-32236 |
| 2 | Russian Foundation for Basic Research | 07-03-00203 |
Abstract:
The formation of an active phase in V-Mo-Nb oxide catalysts for the selective oxidation and ammoxidation of ethane during thermal treatment in air and in helium was studied using high-temperature in situ and ex situ X-ray diffraction analysis, transmission electron microscopy, IR spectroscopy, and the differential dissolution method. It was found that, in thermal treatment below 500°C, the formation occurred through the same irreversible steps with the formation of a unidimensionally ordered layered compound with structure elements like Mo5O14 regardless of the calcination atmosphere. Above 500°C, the formation of crystalline phases took place; the composition and structure of these phases depended on the atmosphere of thermal treatment. The unidimensionally ordered V-Nb-Mo oxide with structure elements like Mo5O14 exhibited the best catalytic properties.
Cite:
Kardash T.Y.
, Plyasova L.M.
, Bondareva V.M.
, Andrushkevich T.V.
, Ishchenko A.V.
, Chesalov Y.A.
, Dovlitova L.S.
Effect of Thermal Treatment Conditions on the Phase Composition and Structural Characteristics of V–Mo–Nb–O Catalysts
Kinetics and Catalysis. 2009. V.50. N1. P.48-56. DOI: 10.1134/S0023158409010078 WOS Scopus РИНЦ ANCAN OpenAlex
Effect of Thermal Treatment Conditions on the Phase Composition and Structural Characteristics of V–Mo–Nb–O Catalysts
Kinetics and Catalysis. 2009. V.50. N1. P.48-56. DOI: 10.1134/S0023158409010078 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Кардаш Т.Ю.
, Плясова Л.М.
, Бондарева В.М.
, Андрушкевич Т.В.
, Ищенко А.В.
, Чесалов Ю.А.
, Довлитова Л.С.
Влияние условий термообработки на формирование фазового состава и структурные характеристики VMoNbO-катализаторов
Кинетика и катализ. 2009. Т.50. №1. С.54-62. РИНЦ
Влияние условий термообработки на формирование фазового состава и структурные характеристики VMoNbO-катализаторов
Кинетика и катализ. 2009. Т.50. №1. С.54-62. РИНЦ
Dates:
| Submitted: | Feb 27, 2008 |
| Published print: | Jan 1, 2009 |
| Published online: | Apr 18, 2009 |
Identifiers:
| Web of science: | WOS:000265298500007 |
| Scopus: | 2-s2.0-65249101600 |
| Elibrary: | 13603762 |
| Chemical Abstracts: | 2009:328902 |
| Chemical Abstracts (print): | 151:450917 |
| OpenAlex: | W2128740674 |