化工进展 ›› 2015, Vol. 34 ›› Issue (07): 1894-1897,1997.DOI: 10.16085/j.issn.1000-6613.2015.07.014

• 工业催化 • 上一篇    下一篇

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. 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
  • 收稿日期:2012-02-05 修回日期:2015-03-23 出版日期:2015-07-05 发布日期:2015-07-05
  • 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。

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. 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

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

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

中图分类号: 

京ICP备12046843号-2;京公网安备 11010102001994号
版权所有 © 《化工进展》编辑部
地址:北京市东城区青年湖南街13号 邮编:100011
电子信箱:hgjz@cip.com.cn
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn