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《Precious Metals》 2006-02
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Study on Preparation of Pd/C Catalyst with Palladium(Ⅱ)Acetylacetonate as Precursor

ZHANG Shudong,LEI Yuanjin,LIU Xiaorong,GU Yongwan,PAN Zaifu(Kunming Institute of Precious Metals,Kunming,Yunnan 650221,China)  
A series of activated charcoal supported palladium catalysts was prepared by the impregnation-reduction method with Pd(acac)2,PdCl2 and Pd(NO3)2 as precursors,respectively.The resin disproportionation was used to evaluate the catalytic activity.The effect of the type of activated charcoal,pretreatment of the support,solvent,reduction method and temperature on the catalytic activity of Pd/C were studied.The results showed that using activated charcoal with large specific area and pore capacity as the support is beneficial to homogeneous distribution of Pd particles on the surface,thus to promotion of catalytic activity;using Pd(acac)2 as precursor,and the solvent with strong polarity may raise catalytic activity of Pd/C compared with inorganic chemical precursors.And TG-DTA indicated that Pd(acac)2 could be completely decomposed at 350℃.Based on the results,by the method of hydrogen dry-reduction,the authors manufactured the Pd/C catalyst,the performance of which could be comparable to the similar product imported from Japan.
【Fund】: 云南省科技攻关计划项目资助(2003GG04)
【CateGory Index】: TQ426.6
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