高等学校化学学报

高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (3): 513.

• 研究快报 • 上一篇    下一篇

模板法制备枝状Pt纳米线

孔令斌1, 李梦轲1, 陆梅1, 郭新勇2, 力虎林1   

  1. 1. 兰州大学化学化工学院, 兰州 730000;
    2. 河南大学润滑与功能材料重点实验室, 开封 475001
  • 收稿日期:2002-09-24 出版日期:2003-03-24 发布日期:2003-03-24
  • 通讯作者: 力虎林(1936年出生),男,教授,博士生导师,从事电化学、材料化学基础和应用研究.E-mail:lihl@lzu.edu.cn E-mail:lihl@lzu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号:60171004)资助

Branched Platinum Nanowires Prepared by Using Template Method

KONG Ling-Bin1, LI Meng-Ke1, LU Mei1, GUO Xin-Yong2, LI Hu-Lin1   

  1. 1. College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China;
    2. Key Lab of Lubrication and Functional Materials, Henan University, Kaifeng 475001, China
  • Received:2002-09-24 Online:2003-03-24 Published:2003-03-24

PDF (PC)

被引次数

93

关键词: 模板, 阳极氧化铝, 枝状Pt纳米线, 电化学沉积

Abstract: Porous anodic aluminum oxide(AAO) templates, obtained by anodization of aluminum sheets at relatively high voltages, were used for fabricating branched platinum nanowires which copy the three-dimensional branching structure of the nanochannels in the template. The formation of these branched nanochannels is the characteristic of AAO templates grown at 60 V in 0.15 mol/L H2C2O4 solution. When AAO templates are grown at 40 V or lower, straight channels and platinum nanowires are obtained. Platinum nanowires array was alter-current(AC)-electrodeposited in AAO at a lower frequency(20 Hz) and increasing voltage(5-15 V). Compared with traditional AC electrodeposition condition, the deposition rate of platinum nanowires under this condition is slower and more controllable. Therefore, the platinum nanowires can perfectly copy the structure of the template. The as-obtained Al/AAO/Pt composite and branched platinum nanowires were characterized by X-ray diffraction(XRD) and transmission electron microscope(TEM), respectively.

Key words: Template, Anodic aluminum oxide, Branched platinum nanowires, Electrochemical deposition

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