高等学校化学学报 ›› 2012, Vol. 33 ›› Issue (05): 1021.doi: 10.3969/j.issn.0251-0790.2012.05.028

• 物理化学 • 上一篇    下一篇

脉冲电沉积法制备Pt-TiO2 纳米管电极及其电催化性能

孟祥龙, 李洪义, 王金淑   

  1. 北京工业大学材料科学与工程学院, 北京 100124
  • 收稿日期:2011-10-14 出版日期:2012-05-10 发布日期:2012-05-10
  • 作者简介:王金淑, 女, 博士, 教授, 主要从事功能材料领域的研究. E-mail: wangjsh@bjut.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 51002004)、 北京市教委科技发展基金(批准号: KZ201010005001, KM201110005003)、 电子薄膜与集成器件国家重点实验室开放课题(批准号: UESTC: KFJJ201001)和广西省自然科学基金(批准号: 2010GXNSFB013009)资助.

Electrocatalytic Properties of Pt-TiO2 Nanotubes Electrode Prepared by Pulse Electrodeposition Method

MENG Xiang-Long, LI Hong-Yi, WANG Jin-Shu   

  1. College of Materials Science and Enginnering, Beijing University of Technology, Beijing 100124, China
  • Received:2011-10-14 Online:2012-05-10 Published:2012-05-10

摘要: 采用阳极氧化法在高纯钛片上原位组装TiO2纳米管阵列, 然后用脉冲电沉积方法将Pt沉积到TiO2纳米管阵列上, 制备出Pt-TiO2纳米管电极. 利用XRD和SEM对所获电极的微观结构和形貌进行表征, 结果表明, Pt纳米颗粒以花簇状分散在TiO2纳米管上, 晶粒大小约为25.6 nm. 对甲醇的电催化性能的研究结果表明, 脉冲电沉积制得的Pt-TiO2纳米管电极比TiO2纳米管电极和纯Pt片电极具有更高的电催化活性, 是Pt电极的40多倍.

关键词: 甲醇, 脉冲电沉积, 铂, TiO2纳米管, 电催化性能

Abstract: Platinum(Pt) nanoflower structure was electrodeposited on the surface of the aligned TiO2 nanotube, which was fabricated by anodic oxidation on titanium samples. The obtained electrode was characterized by XRD and SEM. The experiment results show that Pt is dispersed on the TiO2 nanotubes in the shape of nanoflowers, particle size is 25.6 nm based on the calculations of XRD. Compared with pure Pt and clean TiO2 nanotube arrays, the hybrid electrodes' electrocatalytic activity for methanol oxidation has been greatly improved. The oxidation current densities on Pt-TiO2 nanotubes electrode are 40 times higher than that of pure platinum electrode. The hybrid electrode shows promising applications in many fields, such as direct methanol fuel cell, treatment of polluted water and so on.

Key words: Methanol, Pulse electrodeposition, Platnium, TiO2 nanotubes, Electrocatalytic property

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