Metal-Support Interaction – a Key Reason for Ag Catalyst Activity in Low-Temperature Oxidation | Sciact - CRIS-система Института катализа

Metal-Support Interaction – a Key Reason for Ag Catalyst Activity in Low-Temperature Oxidation Тезисы доклада

Конференция

EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources”
30 авг. - 4 сент. 2015 , Казань

Сборник

EuropaCat XII. Catalysis: Balancing the use of fossil and renewable resources. XII European Congress on Catalysis, Kazan (Russia), 30 August - 4 September, 2015 : Book of Abstracts
Сборник, BIC SB RAS. Novosibirsk.2015. 2184 c. ISBN 978-5-906376-10-7. РИНЦ

Вых. Данные

Год: 2015, Номер статьи : ISO-OP09, Страниц : 2

Ключевые слова

metal-support interaction, ultrasmall Ag particles, interface, low-temperature oxidation

Авторы

Mamontov G.V. ¹ , Dutov V.V. ¹ , Grabchenko M.V. ¹ , Zaikovskii V.I. ^2,3 , Sobolev V.I. ^1,2 , Vodyankina O.V. ¹

Организации

1	Tomsk State University, Laboratory of Catalytic Research, Tomsk, Russia
2	Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia
3	Novosibirsk State University, Novosibirsk, Russia

Информация о финансировании (1)

Национальный исследовательский Томский государственный университет

The metal-support interaction in supported catalysts is very important for understanding of both nature of catalytic action and mechanisms of oxidative reactions. The aim of the present work is to reveal the role of ultrasmall silver particles – oxide support interaction in low-temperature oxidation. The Ag-“inert” support (Ag/SiO2 catalysts) and Ag-“active” support (Ag/CeO2 catalysts) interfaces were studied in details. It was shown that weak interaction of ultrasmall silver particles with both “inert” (silica) and “active” (ceria) supports is a compulsory condition for high activity in low-temperature CO oxidation. In Ag/CeO2/SiO2 catalysts the oxidation of CO even at temperatures below 0 oC takes place only in the presence of Ag-SiO2 interaction, while the enhanced Ag-CeO2 interface is a reason for elevated activity in deep oxidation of formaldehyde and dehydrogenation of ethanol to acetaldehyde.

Mamontov G.V. , Dutov V.V. , Grabchenko M.V. , Zaikovskii V.I. , Sobolev V.I. , Vodyankina O.V.
Metal-Support Interaction – a Key Reason for Ag Catalyst Activity in Low-Temperature Oxidation
В сборнике EuropaCat XII. Catalysis: Balancing the use of fossil and renewable resources. XII European Congress on Catalysis, Kazan (Russia), 30 August - 4 September, 2015 : Book of Abstracts. – BIC SB RAS., 2015. – C.2070-2071. – ISBN 978-5-906376-10-7.

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