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电化学  2014 

Sn/Pt纳米立方体对乙醇电催化氧化的原位FTIR光谱研究

DOI: 10.13208/j.electrochem.131177, PP. 395-400

Keywords: Sn修饰,铂立方体,乙醇,电催化,原位红外光谱

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Abstract:

采用循环伏安电沉积方法制备了Sn修饰的铂纳米立方体,并研究其乙醇的电催化氧化.结合传统的电化学技术和原位电化学红外光谱技术研究了Sn的作用机理.循环伏安研究表明,Sn修饰后使其乙醇氧化的起始电位显著负移,Sn覆盖度~0.90时乙醇氧化的起始电位为-0.1V.原位红外光谱结果表明,修饰Sn后极大地促进了乙酸的生成,更利于乙醇的直接氧化途径,但对乙醇的C—C键断裂促进作用不大.

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