REAL

Low-Temperature CO Oxidation over New Types of Sn–Pt/SiO2 Catalysts

Margitfalvi, József and Borbáth, Irina and Hegedűs, Mihály and Tfirst, Ernő and Gőbölös, Sándor and Lázár, Károly (2000) Low-Temperature CO Oxidation over New Types of Sn–Pt/SiO2 Catalysts. Journal of Catalysis, 196 (1). pp. 200-204. ISSN 0021-9517

[img] PDF
1080805.pdf
Restricted to Registered users only

Download (65kB) | Request a copy

Abstract

Sn-Pt/SiO2 catalysts prepared by using controlled surface reactions are highly active in the low-temperature oxidation of CO. The results indicate that the high activity of these catalysts can be attributed to (i) the stabilization of tin-platinum alloy phases on the silica support, and (ii) the formation of "Sn4+-Pt" ensemble sires during the oxidation of CO. It is suggested that Sn4+ species formed in situ are involved in the activation of the CO molecule adsorbed at the neighboring Pt site. This activation strongly resembles that of the carbonyl group in unsaturated aldehydes over this type of Sn-Pt/SiO2 catalysts.

Item Type: Article
Subjects: Q Science / természettudomány > QD Chemistry / kémia
Depositing User: Erika Bilicsi
Date Deposited: 04 Jan 2013 07:56
Last Modified: 04 Jan 2013 07:56
URI: http://real.mtak.hu/id/eprint/3765

Actions (login required)

Edit Item Edit Item