Infrared study of the adsorption of NO, NO2 and CO on Rh/Al2O3 catalysts
Author(s) -
James A. Anderson,
Graeme J. Millar,
Colin H. Rochester
Publication year - 1990
Publication title -
journal of the chemical society faraday transactions
Language(s) - English
Resource type - Journals
eISSN - 1364-5455
pISSN - 0956-5000
DOI - 10.1039/ft9908600571
Subject(s) - adsorption , rhodium , catalysis , infrared spectroscopy , chemistry , infrared , nitrate , inorganic chemistry , organic chemistry , physics , optics
Infrared spectra of NO, NO2 and CO adsorbed on Rh/Al2O3 have been recorded in order to identify the role of surface Rh-NO+ species in the reactions of NO and CO on Rh surfaces. Rh-NO+ was generated by thermally activated adsorption of NO, adsorption of NO on oxidised Rh or by adsorption of NO2. The latter also gave adsorbed nitrate on both Rh and the alumina support. In the presence of CO, Rh-NO+ acted as a precursor of the Rh(CO)(NO) mixed surface complex of CO and NO
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