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玻碳表面铂黑电极的结构与电催化活性
Authors
孙世刚
陈声培
黄泰山
Publication date
1 January 1994
Publisher
Abstract
在电化学催化的应用研究中,至关重要的课题之一,莫过于寻找和制备高性能电催化剂.以碳或氧化物为载体,在其表面上沉积催化物质,可显著提高催化剂的利用率,降低成本.铂的催化活性较高,因此,对载体上沉积铂制备实用型电催化剂的研究一直受到重视.近十多年来,以原子排列结构明确的铂单晶面作为模型催化剂的研究取得了极大的进展,发现铂电极表面结构对其活性具有决定性的影响.从而可能通过获得的知识在原子和分子层次上对电催化剂表面进行设计和筛选.由于金属在一定条件下存在单晶多定向,以及多晶单定向的趋势,上述可能性就更接近实际.本文通过对玻碳表面沉积的高分散铂黑电催化剂的结构和对甲醇氧化的催化活性的研究,试图在微观层次上对实用型电催化剂表面结构及性能进行探讨
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Last time updated on 16/06/2016