科研之友
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摘要
A general protocol for the synthesis of PtSn/C catalysts for ethanol electrooxidation by the polyol method is developed after a systematic variation of the preparation variables. This protocol enables the complete transfer of all catalytic elements in the preparation solution to the catalyst support; thereby providing a convenient means of catalyst composition control. Water is a necessary co-solvent for ethylene glycol in the polyol synthesis of PtSn/C catalysts. The best preparation medium for controlling the particle size to small sizes is 0.1?M NaOH solution in a mixture of equal volumes of water and ethylene glycol. With this medium composition PtSn/C catalysts with the optimized target Pt:Sn atomic ratio of 3:1 could be expeditiously prepared for ethanol electrooxidation.
- 出版日期2012-8
