✦ LIBER ✦

On the role of oxygen in the reaction of NO reduction by NH3 over monolayer V2O5TiO2 catalyst

✍ Scribed by L.G. Pinaeva; A.P. Suknev; A.A. Budneva; E.A. Paukshtis; B.S. Bal'zhinimaev

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 944 KB
Volume: 112
Category: Article
ISSN: 1381-1169
DOI: 10.1016/1381-1169(96)00196-3

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✦ Synopsis

The selective catalytic reduction of NO by NH, over monolayer V,O,-TiO, catalyst has been investigated by transient response technique and IR spectroscopy. Ammonia adsorption-desorption processes on the catalyst surface proceed with participation of both Bransted and Lewis acid sites. Sharp ammonia desorption caused by vanadia oxidation was observed in the reaction of 0, and NO + 0, flows with ammonia treated catalyst. This phenomenon results in the increase of the reaction rate. The reasonable mechanism of oxygen effect on the reaction rate is proposed.

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