Effect of Acoustic Excitation on the Rate of CO Oxidation over Pt{110} | Sciact - CRIS-система Института катализа

Effect of Acoustic Excitation on the Rate of CO Oxidation over Pt{110} Научная публикация

Журнал

Surface Science
ISSN: 0039-6028

Вых. Данные

Год: 1998, Том: 417, Номер: 1, Страницы: 97-106 Страниц : 10 DOI: 10.1016/S0039-6028(98)00671-2

Ключевые слова

Acoustic excitation, CO, Oxidation, Pt{110}

Авторы

Mitrelias T. ¹ , Kelling S. ¹ , Kvon R.I. ^1,2 , Ostanin V.P. ¹ , King D.A. ¹

Организации

1	Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK
2	Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, pr Lavrentieva 5, Novosibirsk 630090, Russia

Информация о финансировании (3)

1	European Commission
2	Engineering and Physical Sciences Research Council
3	Royal Society

A unique UHV-compatible excitation system combined with an advanced ultra-high amplitude and frequency resolution acoustic spectrometer has been designed and constructed to permit accurate studies of the fundamental mechanism by which acoustic excitation may influence heterogeneous catalytic reactions. Here, the first results are presented, which demonstrate a remarkable sixfold increase in the rate of carbon monoxide oxidation when a Pt{110} thin single crystal is excited with low-frequency, low-energy surface acoustic waves (Rayleigh waves). In addition, chemical oscillations in the CO2 production rate are found to be initiated and influenced by acoustic excitation of the system. It is proposed that the acoustic excitation results in an enhancement of the carbon monoxide desorption, which in turn affects the activity of the platinum catalyst if the reaction is in the transition between a low- and high-rate branch.

Mitrelias T. , Kelling S. , Kvon R.I. , Ostanin V.P. , King D.A.
Effect of Acoustic Excitation on the Rate of CO Oxidation over Pt{110}
Surface Science. 1998. V.417. N1. P.97-106. DOI: 10.1016/S0039-6028(98)00671-2 WOS Scopus РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	27 февр. 1998 г.
Принята к публикации:	2 авг. 1998 г.
Опубликована в печати:	8 нояб. 1998 г.
Опубликована online:	19 нояб. 1998 г.

Web of science:	WOS:000077100900013
Scopus:	2-s2.0-0032497763
РИНЦ:	13305051
Chemical Abstracts:	1998:775103
Chemical Abstracts (print):	129:347692
OpenAlex:	W2012881491

БД	Цитирований
Web of science	8
Scopus	7
РИНЦ	7
OpenAlex	8