Selective reduction of NO by HNCO over Pt promoted Al2O3

Acke, Filip,1968Chalmers tekniska högskola,Chalmers University of Technology (författare)

The activity of Pt supported on gamma-Al2O3 towards HNCO oxidation and reduction of NO by HNCO under oxygen excess is examined under transient conditions (temperature ramps between 100 and 500 degrees C). Formation of N-2, N2O, NO, and NO2 is observed. Isotope labelled (NO)-N-15 is used to show the scrambling of nitrogens in N-2 ((NN)-N-14-N-15) and N2O ((NNO)-N-14-N-15). Adsorbed species on the surface are characterised by in-situ FTIR spectroscopy in order to obtain information on reaction intermediates. Adsorbed NNx species are discussed as important intermediates in the N-2 and N2O formation. The absence of Pt results in a delay in HNCO ignition and only a small N2O formation is observed.

Westerberg, Björn,1962Chalmers tekniska högskola,Chalmers University of Technology (författare)
Skoglundh, Magnus,1965Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)skoglund (författare)
Chalmers tekniska högskola (creator_code:org_t)

Av författaren/redakt...: Acke, Filip, 196 ...; Westerberg, Björ ...; Skoglundh, Magnu ...

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