论文信息 - Influence of support composition on the reduction of nitric oxide over rhodium catalysts

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

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.

Alexis T. Bell | A. Bell | Nutan K. Pande | N. Pande

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