Fabrication of Pd nanowires /Pt nanoparticles and its activity in oxygen reduction reaction

doi:10.16085/j.issn.1000-6613.2015.07.014

Chemical Industry and Engineering Progree ›› 2015, Vol. 34 ›› Issue (07): 1894-1897,1997.DOI: 10.16085/j.issn.1000-6613.2015.07.014

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Fabrication of Pd nanowires /Pt nanoparticles and its activity in oxygen reduction reaction

CHEN Meiqiong¹, CAI Zhiquan¹, ZHANG Min², GUO Wenxian¹, ZHANG Yan¹, LIU Peng², CHENG Faliang²

1 Dongguan Key Laboratory of Green Energy, Department of City and Environment Science, City College, Dongguan University of Technology, Dongguan 523419, Guangdong, China;
2 Biosensor Research Centre, Dongguan University of Technology, Dongguan 523808, Guangdong, China

Received:2012-02-05 Revised:2015-03-23 Online:2015-07-05 Published:2015-07-05

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

陈妹琼¹, 蔡志泉¹, 张敏², 郭文显¹, 张燕¹, 柳鹏², 程发良²

1 东莞理工学院城市学院, 城市与环境科学系, 东莞市绿色能源重点实验室, 广东东莞 523419;
2 东莞理工学院生物传感器研究中心, 广东东莞 523808

通讯作者: 程发良,博士,教授。E-mail:chengfl@dgut.edu.cn。
作者简介:陈妹琼(1982—),女,硕士,讲师。
基金资助:
国家自然科学基金(21475022)、广东省自然科学基金(S2013010014324)、东莞市科技计划(2011108101016, 2014106101022, 2014106101020)及东莞理工学院城市学院"青年教师发展基金"(ZR02)项目。

Abstract

Abstract: Pd nanowire arrays were prepared by electro-deposition method using anodic aluminum oxide(AAO) template, and Pt nanoparticles were deposited on the Pd nanowire array to prepare Pd nanowires/Pt nanoparticles (PdNWs/PtNPs) composite electrode. The morphology of PdNWs/PtNPs was observed using scanning electron microscope (SEM), and the component of PdNWs/PtNPs was collected in an energy dispersive spectrometer (EDS). The electro catalytic activity in oxygen reduction at PdNWs/PtNPs composite was measured by cyclic voltammetry(CV) and linear sweep voltammetry (LSV). The results revealed that PdNWs/PtNPs composite exhibits better electro catalytic activity in oxygen reduction than pure PdNWs or PtNPs, in which, the peak oxygen reduction current of PdNWs/PtNPs is 8.1 times higher than that of pure PtNPs, and 2.1 times higher than that of pure PdNWs respectively. Moreover, the reduction potential positively shifts 140mV in PdNWs/PtNPs.

Key words: catalysis, palladium, platinum, oxygen reduction, electrochemistry, composites

摘要： 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。

关键词: 催化, Pd, Pt, 氧还原, 电化学, 复合材料

CLC Number:

O646

CHEN Meiqiong, CAI Zhiquan, ZHANG Min, GUO Wenxian, ZHANG Yan, LIU Peng, CHENG Faliang. Fabrication of Pd nanowires /Pt nanoparticles and its activity in oxygen reduction reaction[J]. Chemical Industry and Engineering Progree, 2015, 34(07): 1894-1897,1997.

陈妹琼, 蔡志泉, 张敏, 郭文显, 张燕, 柳鹏, 程发良. 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[J]. 化工进展, 2015, 34(07): 1894-1897,1997.

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Fabrication of Pd nanowires /Pt nanoparticles and its activity in oxygen reduction reaction

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

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