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化工进展  2015 

Pd纳米线/Pt纳米粒子复合材料的制备及其氧还原催化性能

DOI: 10.16085/j.issn.1000-6613.2015.07.014

Keywords: 催化,Pd,Pt,氧还原,电化学,复合材料

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Abstract:

利用氧化铝模板法结合恒电位法制备了钯纳米线,再结合循环伏安法制备了Pd纳米线/Pt纳米粒子复合材料,用扫描电子显微镜观察了所制备的复合材料的形貌,用能谱仪确认了复合材料的成分,利用循环伏安和线性扫描测试了复合材料的氧还原催化性能。研究结果发现,复合材料表现出优于纯铂和纯钯的催化性能,氧还原峰电流分别比纯铂纳米颗粒和纯钯纳米线的高了8.1倍和2.1倍,氧还原的起峰电位比铂纳米粒子的正移了140mV。

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