Noble metal ionic sites for catalytic hydrogen combustion: spectroscopic insights


Autoria(s): Deshpande, Parag A; Madras, Giridhar
Data(s)

2011

Resumo

A catalytic hydrogen combustion reaction was carried out over noble metal catalysts substituted in ZrO2 and TiO2 in ionic form. The catalysts were synthesized by the solution combustion technique. The compounds showed high activity and CO tolerance for the reaction. The activity of Pd and Pt ion substituted TiO2 was comparable and was higher than Pd and Pt ion substituted ZrO2. The mechanisms of the reaction over the two supports were proposed by making use of the X-ray photoelectron spectroscopy and FT infrared spectroscopic observations. The reaction over ZrO2 supported catalysts was proposed to take place by the utilization of the surface hydroxyl groups while the reaction over TiO2 supported catalysts was hypothesized to be a hybrid mechanism utilizing surface hydroxyl groups and the lattice oxygen.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/35302/1/Noble.pdf

Deshpande, Parag A and Madras, Giridhar (2011) Noble metal ionic sites for catalytic hydrogen combustion: spectroscopic insights. In: PCCP: Physical Chemistry Chemical Physics, 13 (2). pp. 708-718.

Publicador

Royal Society of Chemistry

Relação

http://pubs.rsc.org/en/Content/ArticleLanding/2011/CP/c0cp01110j

http://eprints.iisc.ernet.in/35302/

Palavras-Chave #Chemical Engineering
Tipo

Journal Article

PeerReviewed