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unknown
Pt-Sn/Pt电极对乙二醇的电催化氧化
Authors
丁月敏
任斌
+7 more
刘跃龙
吴志祥
易飞
王国富
田中群
钟起玲
饶贵仕
Publication date
10 July 2008
Publisher
Abstract
采用常规电化学方法研究了Pt/Pt与Pt和Sn配比不同的Pt-Sn/Pt电极对乙二醇(EG)的电催化氧化行为。结果表明,EG在Pt/Pt和Pt-Sn/Pt电极上均能自发氧化解离,产生强吸附中间体COad。而Sn的加入,可抑制EG的自发氧化解离,且在一定范围内随着Sn含量的逐渐增加(Sn/Pt从0.25增加至0.67),EG在Pt-Sn/Pt电极上自发氧化解离所产生的CO吸附量逐渐减少,Pt-Sn/Pt电极对EG电催化氧化的活化能逐渐降低(从44.21降至32.11kJ/mol)。与Pt/Pt电极相比,Pt-Sn/Pt(Sn/Pt=0.67)电极对EG电催化氧化的活性得到明显提高
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Last time updated on 16/06/2016