The State of the Active Sites and Deactivation of Mo-ZSM-5 Catalysts of Methane Dehydroaromatization | Sciact - CRIS-system of Boreskov Institute of Catalysis

The State of the Active Sites and Deactivation of Mo-ZSM-5 Catalysts of Methane Dehydroaromatization Full article

Journal

Doklady Physical Chemistry
ISSN: 0012-5016 , E-ISSN: 1608-3121

Output data

Year: 2005, Volume: 404, Number: 4-6, Pages: 201-204 Pages count : 4 DOI: 10.1007/s10634-005-0060-1

Tags

Physical Chemistry; Methane

Authors

Zaikovskii V.I. ¹ , Vosmerikov A.V. ² , Anufrienko V.F. ¹ , Korobitsyna L.L. ² , Kodenev E.G. ¹ , Echevsky G.V. ¹ , Vasenin N.T. ¹ , Zhuravkov S.P. ³ , Ismagilov Z.R. ¹ , Parmon V.N. ¹

Affiliations

1	Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, pr. Akademika Lavrent’eva 5, Novosibirsk, 630090 Russia
2	Institute of Petrochemistry, Siberian Division, Russian Academy of Sciences, Akademicheskii pr. 3, Tomsk, 634055 Russia
3	Institute of Strength Physics and Materials Science, Siberian Division, Russian Academy of Sciences, Akademicheskii pr. 2/1, Tomsk, 634055 Russia

The mechanism of methane dehydroaromatization on Mo-ZSM-5 catalysts is directly related to the structure of Mo-containing active sites and the state of Mo in them. These catalysts are deactivated through passivation of the active sites by the carbon-containing products of hydrocarbon decomposition. Indeed, the EPR spectra of coke deposits on Mo-containing zeolite catalysts can be recorded both after a relatively longterm exposure to the reaction medium and soon after the onset of the reaction. However, there is still no unified standpoint concerning the state of Mo in these catalysts or the reasons for deactivation. To clarify these points, we studied Mo-ZSM-5 catalysts at various deactivation stages during methane dehydroaromatization by high-resolution transmission electron microscopy (HRTEM), energy dispersive X-ray spectroscopy (EDX), and EPR.

Zaikovskii V.I. , Vosmerikov A.V. , Anufrienko V.F. , Korobitsyna L.L. , Kodenev E.G. , Echevsky G.V. , Vasenin N.T. , Zhuravkov S.P. , Ismagilov Z.R. , Parmon V.N.
The State of the Active Sites and Deactivation of Mo-ZSM-5 Catalysts of Methane Dehydroaromatization
Doklady Physical Chemistry. 2005. V.404. N4-6. P.201-204. DOI: 10.1007/s10634-005-0060-1 WOS Scopus РИНЦ ANCAN OpenAlex

Зайковский В.И. , Восьмериков А.В. , Ануфриенко В.Ф. , Коробицына (Кузнецова) Л.Л. , Коденев Е.Г. , Ечевский Г.В. , Васенин Н.Т. , Журавков С.П. , Исмагилов З.Р. , Пармон В.Н.
О состоянии активных центров и дезактивации катализаторов Mo-ZSM-5 дегидроароматизации метана
Доклады Академии наук. 2005. Т.404. №4. С.500-504. RSCI Scopus РИНЦ

Submitted:	May 31, 2005
Published print:	Oct 1, 2005

Web of science:	WOS:000233298500001
Scopus:	2-s2.0-27744434890
Elibrary:	13483378
Chemical Abstracts:	2005:1269226
Chemical Abstracts (print):	145:27491
OpenAlex:	W2066456626

DB	Citing
Web of science	11
Scopus	9
Elibrary	10
OpenAlex	13