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1. 发明申请

US20110036202A1 PROCESS FOR PREPARING PLATINUM BASED ELECTRODE CATALYST FOR USE IN DIRECT METHANOL FUEL CELL 有权
标题翻译：制备用于直接甲醇燃料电池的基于铂的电极催化剂的方法
公开(公告)号：US20110036202A1
公开(公告)日：2011-02-17
申请号：US12911825
申请日：2010-10-26
申请人： Man-Yin LO , I-Hsuan LIAO
发明人： Man-Yin LO , I-Hsuan LIAO
IPC分类号： B22F9/20
CPC分类号： H01M4/921 , B01J23/42 , B01J35/0013 , H01M8/1011 , Y02E60/523
摘要： A method for preparing platinum (Pt) based nano-size catalyst which is useful as an electrode catalyst of a direct methanol fuel cell (DMFC). This method includes the implementation of a reduction reaction of a platinum precursor and an optional ad-metal precursor with a reducing agent in a solvent and in the presence of a stabilizer to form a suspension containing colloidal particles of platinum or platinum/ad-metal; mixing the suspension with a co-solvent; subjecting the resultant mixture to a centrifugal treatment to form a platinum or platinum/ad-metal colloidal particle portion and a liquid portion, repeating the co-solvent mixing and centrifugal treatment to the platinum or platinum/ad-metal colloidal particle portion until the resultant liquid portion no longer contains the product of the reduction reaction; and drying the resultant platinum or platinum/ad-metal colloidal particle portion to obtain a platinum based nano-size catalyst.
摘要翻译：一种可用作直接甲醇燃料电池（DMFC）的电极催化剂的铂（Pt）基纳米尺寸催化剂的制备方法。该方法包括在溶剂中和在稳定剂存在下，用还原剂将铂前体和任选的ad金属前体还原反应，形成含有铂或铂/金属的胶体颗粒的悬浮液; 将悬浮液与共溶剂混合; 对所得混合物进行离心处理以形成铂或铂/金属 - 金属胶体颗粒部分和液体部分，重复对铂或铂/金属 - 金属胶体颗粒部分的共溶剂混合和离心处理，直到得到液体部分不再含有还原反应的产物; 并干燥得到的铂或铂/金属 - 金属胶体颗粒部分，得到铂基纳米尺寸催化剂。

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