Self-Sustained Oscillations in CO Oxidation Reaction on PdO/Al2O3 Catalyst | Sciact - CRIS-система Института катализа

Self-Sustained Oscillations in CO Oxidation Reaction on PdO/Al2O3 Catalyst Научная публикация

Журнал

Chemical Engineering Science
ISSN: 0009-2509 , E-ISSN: 1873-4405

Вых. Данные

Год: 2012, Том: 83, Страницы: 149-158 Страниц : 9 DOI: 10.1016/j.ces.2012.03.020

Ключевые слова

Catalysis, CO oxidation, Experiment, Feedback mechanism, Mathematical modeling, Self-oscillations

Авторы

Lashina E.A. ¹ , Slavinskaya E.M. ¹ , Chumakova N.A. ^1,3 , Stonkus O.A. ^1,3 , Gulyaev R.V. ¹ , Stadnichenko A.I. ^1,3 , Chumakov G.A. ^2,3 , Boronin A.I. ^1,3 , Demidenko G.V. ^2,3

Организации

1	Boreskov Institute of Catalysis SB RAS, pr. Akad. Lavrent’eva 5, Novosibirsk 630090, Russia
2	Sobolev Institute of Mathematics SB RAS, pr. Akad. Koptyuga 4, Novosibirsk 630090, Russia
3	Novosibirsk State University, ul. Pirogova 2, Novosibirsk 630090, Russia

Информация о финансировании (1)

Сибирское отделение Российской академии наук

107

The paper presents the experimental study and mathematical modeling of self-sustained oscillations in the reaction of CO oxidation on PdO/Al2O3 catalysts. In experiments we observe the complicated multi-peak oscillatory behavior of CO conversion under isothermal conditions. At these, the palladium surface is composed of a mixture of the metallic and oxide phases. We develop some new mathematical models describing the interaction of reagents with the Pd and PdO surfaces and taking into account the influence of the reaction medium on the catalyst activity. The models qualitatively describe the relaxation and multi-peak oscillations of the CO conversion. The redox process of Pd–PdO transition observed in the experiment causes the relaxation oscillations, while the mixed-mode oscillations in the model are observed due to coupling between the deep oxidation of palladium and the surface modification by oxygen.

Lashina E.A. , Slavinskaya E.M. , Chumakova N.A. , Stonkus O.A. , Gulyaev R.V. , Stadnichenko A.I. , Chumakov G.A. , Boronin A.I. , Demidenko G.V.
Self-Sustained Oscillations in CO Oxidation Reaction on PdO/Al2O3 Catalyst
Chemical Engineering Science. 2012. V.83. P.149-158. DOI: 10.1016/j.ces.2012.03.020 WOS Scopus РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	26 июл. 2011 г.
Принята к публикации:	19 мар. 2012 г.
Опубликована online:	31 мар. 2012 г.
Опубликована в печати:	1 дек. 2012 г.

Web of science:	WOS:000309051500015
Scopus:	2-s2.0-84866183454
РИНЦ:	21887537
Chemical Abstracts:	2012:1358340
Chemical Abstracts (print):	157:559533
OpenAlex:	W2076649804

БД	Цитирований
Web of science	25
Scopus	27
РИНЦ	29
OpenAlex	28