Selective reduction of NO by HNCO over Pt promoted Al2O3
Journal article, 1998

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.

NITRIC-OXIDE

IR SPECTROSCOPY

ISOCYANIC ACID

PLATINUM

AMMONIA

SURFACE

CATALYSTS

Author

Filip Acke

Competence Centre for Catalysis (KCK)

Chalmers, Department of Environmental Inorganic Chemistry

Björn Westerberg

Department of Chemical Reaction Engineering

Competence Centre for Catalysis (KCK)

Magnus Skoglundh

Competence Centre for Catalysis (KCK)

Department of Engineering Chemistry

Journal of Catalysis

0021-9517 (ISSN) 1090-2694 (eISSN)

Vol. 179 2 528-536

Driving Forces

Sustainable development

Areas of Advance

Nanoscience and Nanotechnology (2010-2017)

Transport

Energy

Materials Science

Subject Categories

Chemical Engineering

DOI

10.1006/jcat.1998.2239

More information

Created

10/7/2017