期刊
TOPICS IN CATALYSIS
卷 16, 期 1-4, 页码 425-431出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1023/A:1016694022941
关键词
CO; CH4; oxidation; noble metal; metal oxides; promoter effect; FTIR spectroscopy
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 addition of MOx generally does not seem to affect the catalyst activity in CH4 oxidation, a large enhancement in CO oxidation was observed. Fourier transform infrared spectroscopy has been used to identify the role of MOx as a promoter for low-temperature CO oxidation. The results were found to support a Mars and van Krevelen type model.
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