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標題: Effects of metal precursor in the sol-gel synthesis on the physicochemical properties of Pd/Al2O3-CeO2 catalyst: CO oxidation
作者: Wey, M.Y.
Tseng, H.H.
Liang, Y.S.
Chang, Y.C.
Lu, C.Y.
關鍵字: catalysis;sol-gel method;sol-gel precursor;solution chemistry;incineration flue-gas;organic-compounds;3-way catalyst;pd catalysts;oxygen
Project: Journal of Non-Crystalline Solids
期刊/報告no:: Journal of Non-Crystalline Solids, Volume 352, Issue 21-22, Page(s) 2166-2172.
The object of this research was to investigate the effects of various precursors and different fabricating procedures of Pd/Al2O3-CeO2 catalysts by the sol-gel method. The physicochemical properties and structures of catalyst were characterized with BET surface area, X-ray powder diffraction (XRPD), and scanning electron microscopy (SEM). The performance of the Pd/Al2O3-CeO2 catalyst was also evaluated by CO oxidation tests with a continuous quartz reactor. The results indicated that the catalyst prepared with inorganometallic precursors showed a high dispersion of Pd, large surface area and pore volume, and a high activity in CO oxidation. The higher redox interaction between Pd and Ce of the support starting with inorganometallic precursors, as determined from X-ray powder diffraction, is suggested as being responsible for such a catalytic behavior. (c) 2006 Elsevier B.V. All rights reserved.
ISSN: 0022-3093
DOI: 10.1016/j.jnoncrysol.2006.01.035
Appears in Collections:環境工程學系所

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