Subject Area物理化学
Co3O4 Nanorods for Low Temperature Oxidation of Carbon Monoxide
Jie XW(解小伟); Li Y(李勇); Shen WJ(申文杰); Wenjie Shen
Conference NameThe 14th International Congress on Catalysis
Conference Date2008-07-13
Conference Place韩国
Alternative TitleCo3O4纳米棒上CO的低温氧化性能
Funding Organizationthe International Association of Catalysis Societies and the Korean Institute of Chemical Engineers
AbstractCo3O4 nanorods were found to be not only sufficiently active for CO oxidation at a temperature as low as -77oC , but also sustainably stable in a stream of normal feed gases containing moisture. The reaction ℃ rate of CO oxidation over the Co3O4 nanorods with very low apparent activation energy of 22 kJ/mol was at least one order of magnitude larger than those over the conventional nanoparticles. High-resolution transmission electron microscopy observation proved that the single crystal Co3O4 nanorods predominantly exposed the {110} planes that favor the presence of octahedrally coordinated Co3+ species, which may act as the active sites for CO oxidation. The above results indicate a possibility of replacing noble metals with morphology-controlled base metal oxides in the currently used catalysts for automotive-emissions control, particularly, during the cold-start transient.
Document Type会议论文
Corresponding AuthorWenjie Shen
Recommended Citation
GB/T 7714
Jie XW,Li Y,Shen WJ,et al. Co3O4 Nanorods for Low Temperature Oxidation of Carbon Monoxide[C],2008:309/1.
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