Abstract
Simultaneous IR spectroscopic and catalytic measurements have been performed in order to investigate the nature of adsorbed species involved in the formation of N2O on Rh/Al2O3 in the course of the CO+NO reaction. Only nitrosyl species have been isolated that could be involved in the formation of N2 and N2O in accordance with previous kinetic investigations [Granger et al. J. Catal. 175 (1998) 194]. Sequential and simultaneous NO and CO exposures lead to the observation of different nitrosyl species that could act as intermediates in the formation of N2 and N2O. Correlations between the appearance/disappearance of Rh(NO) δ+ species and an extra formation of N2O have been established.
Published Version
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