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research article
Promotion of Rh catalyst interfaced with TiO2
The catalytic activity of Rh for the partial oxidn. of methane to syngas can be markedly affected by interfacing polycryst. Rh films with a dispersed TiO2 interlayer deposited on YSZ. High CO selectivity (near 97%) can be reached in wide range of CH4:O2 ratio at 550 Deg. The obsd. modification of catalytic activity and selectivity towards CO and H2 prodn. over Rh interfaced with interlayer of TiO2 is related to the lowered stability of surface Rh oxide against redn. to metallic Rh. The phenomenon may be interpreted either by electronic type strong metal-support interactions or by self-driven wireless electrochem. promotion mechanism. [on SciFinder (R)]
Type
research article
Web of Science ID
WOS:000188507400014
Authors
Publication date
2004
Published in
Volume
6
Issue
2
Start page
170
End page
175
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
February 22, 2006
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