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Influence of support composition on the reduction of nitric oxide over rhodium catalysts

Journal Article · · J. Catal.; (United States)
The NO reduction by CO and H/sub 2/ over Rh/SiO/sub 2/, Rh/Al/sub 2/O/sub 3/, Rh/MgO, Rh/La/sub 2/O/sub 3/, and Rh/TiO/sub 2/ was investigated. Support composition was found to influence the activity, but not the selectivity of Rh. Exceptionally high low-temperature activity was obtained with Rh/TiO/sub 2/. The rate parameters for NO reduction over Rh/TiO/sub 2/ are distinctly different from those for all other catalysts. The high activity of Rh/TiO/sub 2/ is attributed to the presence of catalytically active centers on the support as well as on the surface of the supported Rh crystallites.
Research Organization:
Univ. of California, Berkeley (USA)
OSTI ID:
5182176
Journal Information:
J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 98:1; ISSN JCTLA
Country of Publication:
United States
Language:
English

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