Rjh. Grisel et al., Oxidation reactions over multi-component catalysts: low-temperature CO oxidation and the total oxidation of CH4, TOP CATAL, 16(1-4), 2001, pp. 425-431
A series of NM/MOx/Al2O3 (NM = Pd, Ag, Pt, and An) catalysts were prepared
and tested in the oxidation of CO and CH4. The catalysts were characterized
with X-ray diffraction and transmission electron microscopy. Where additio
n of MOx generally does not seem to affect the catalyst activity in CH4 oxi
dation, a large enhancement in CO oxidation was observed. Fourier transform
infrared spectroscopy has been used to identify the role of MOx as a promo
ter for low-temperature CO oxidation. The results were found to support a M
ars and van Krevelen type model.