中华医学超声杂志

应用化学 ›› 2011, Vol. 28 ›› Issue (12): 1402-1407.DOI: 10.3724/SP.J.1095.2011.00246

• 研究论文 • 上一篇    下一篇

Ti基准晶复相材料电极的电化学储氢性能

刘万强1,2*,张姗姗1,2,王立民2   

  1. (1.长春理工大学材料科学与工程学院 长春 130022；
    2.中国科学院长春应用化学研究所稀土资源利用国家重点实验室 长春 130022)
  • 收稿日期:2011-06-13 修回日期:2011-07-25 出版日期:2011-12-10 发布日期:2011-12-10
  • 通讯作者: 刘万强， 讲师; Tel:0431-85262836; Fax:0431-85262447; E-mail:wqliu1981@ciac.jl.cn; 研究方向：储氢材料，电池材料，功能复合材料
  • 基金资助:
    国家自然科学基金青年基金资助项目(510020015)

Electrochemical Hydrogen Storage Properties of Ti-Based Quasicrystalline Composite Materials

LIU Wanqiang1,2*, ZHANG Shanshan1,2, WANG Limin2   

  1. (1.School of Materials Science and Engineering,Changchun University of
    Science and Technology,Changchun 130022;
    2.State Key Laboratory of Rare Earth Resource Utilization,Changchun Institute of
    Applied Chemistry,Chinese Academy of Sciences,Changchun 130022)
  • Received:2011-06-13 Revised:2011-07-25 Published:2011-12-10 Online:2011-12-10

PDF

1379

被引次数

6 | 1

摘要：

通过电弧熔炼和铜辊急冷技术分别制得Ti1.4V0.6Ni准晶材料和V5Ti9Zr26.2Ni38Cr3.5Co1.5Mn15.6Al0.4Sn0.8（VTZN）合金材料，再用球磨法得到Ti1.4V0.6Ni+20%(质量分数)VTZN的复相材料，研究了该复相材料的组织和电化学储氢特性。 结果表明，复相材料的相组成包括正二十面体准晶相（I-phase）、面心立方相（FCC）和体心立方相（BCC）。 复相材料作为镍氢电池负极，在303 K和放电电流密度为30 mA/g条件下，最大放电容量可达310 mA·h/g，放电性能优于Ti1.4V0.6Ni合金负极。

关键词: Ti1.4V0.6Ni合金, 准晶, 复相材料, 电化学, 储氢

Abstract:

The Ti1.4V0.6Ni and V5Ti9Zr26.2Ni38Cr3.5Co1.5Mn15.6Al0.4Sn0.8 alloys were prepared via an arc-melting method followed by the melt-spinning technique. We systematically investigated the structures and electrochemical hydrogen storage performances of Ti1.4V0.6Ni+20%(mass fraction) ball-milled VTZN composite materials. It was found that the icosahedral quasicrystal, FCC(Ti2Ni) and BCC structural solid solution coexisted in the resultant composite material. When using such composite materials as Ni-MH battery anodes, the discharge current densities were about 30 mA/g at 303 K, the maximal electrochemical discharge capacity reaches 310 mA·h/g. In addition, the electrode of Ti1.4V0.6Ni and VTZN composite showed high-rate discharge ability compared with that of Ti1.4V0.6Ni.

Key words: Ti1.4V0.6Ni alloy, Quasicrystal, composite material, Electrochemical, Hydrogen Storage

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