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Process for preparing platinum based electrode catalyst for use in direct methanol fuel cell
Process for preparing platinum based electrode catalyst for use in direct methanol fuel cell
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机译:用于直接甲醇燃料电池的铂基电极催化剂的制备方法
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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.
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机译:一种制备铂(Pt)基纳米尺寸催化剂的方法,该催化剂可用作直接甲醇燃料电池(DMFC)的电极催化剂。该方法包括在溶剂中和在稳定剂的存在下,使铂前体和任选的金属前体与还原剂进行还原反应,以形成含有铂或铂/金属的胶体颗粒的悬浮液。将悬浮液与助溶剂混合;对所得混合物进行离心处理以形成铂或铂/ ad-金属胶体颗粒部分和液体部分,对铂或铂/ ad /金属胶体颗粒部分重复共溶剂混合和离心处理,直至得到液体部分不再包含还原反应的产物;干燥所得的铂或铂/ ad-金属胶体颗粒部分,以获得铂基纳米尺寸催化剂。
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