研究了快速凝固处理对钛钒系贮氢电极合金Ti0.8Zr0.2V2.4Mn0.48Cr0.72Ni0.9的相结构、特别是电化学性能的影响规律.XRD研究表明:合金主要由六方结构的C14 Laves相和体心立方结构的钒基固溶体相所组成,快速凝固减少了合金中C14 Laves相的含量.电化学性能分析表明:快速凝固降低了合金电极的最大放电容量,增加了电极的活化次数,提高了电极表面的反应阻抗,恶化了电极的动力学性能,但是却大大改善了合金电极的循环稳定性.
参考文献
| [1] | 陈立新,雷永泉,朱光明.掺杂Fe对贮氢合金Ml（Ni-Co-Mn-Ti）5电化学性能的影响[J].稀有金属材料与工程,1998(03):135-138. |
| [2] | Iwakura C.;Cboi W.K. .Electrochemical and Structural Characterization of Ti-V-Ni Hydrogen Storage Alloys With BCC Structure[J].Journal of the Electrochemical Society,2000(7):2503-2506. |
| [3] | 江建军;雷永泉;孙大林 et al.Electrochemical Properties and Structural Analysis of Non-stoichiometric Hydrogen Storage Alloys[J].稀有金属材料与工程,1997,26(03):14. |
| [4] | Pan Hongge;Zhu Yunfeng;Gao Mingxia;Wang Qidong .Investigation of the Structural and Electrochemical Prope-rties of Superstoichiometric Ti-Zr-V-Mn-Cr-Ni Hydrogen Storage Alloys[J].Journal of the Electrochemical Society,2002,149:A829. |
| [5] | Zhu Yunfeng;Pan Hongge;Wang Guoyuan;Gao Mingxia,Ma Jianxin,Chen Changpin,Wang Qidong .Phase Struct-ure, Crystallography and Electrochemical Properties of Laves Phase Compounds Ti0.8Zr0.2V1.6Mn0.8-xMxNi0.6(M= Fe, Al, Cr, Co)[J].International Journal of Hydrogen Energy,2001(26):807. |
| [6] | Zhu Yunfeng;Pan Hongge;Gao Mingxia;Ma Jianxin,Li Shouquan,Wang Qidong .The Effect of Zr Substitution for Ti on the Microstructures and Electrochemical Proper-ties of Electrode Alloys Ti1-xZrxV1.6Mn0.32Cr0.48Ni0.6[J].International Journal of Hydrogen Energy,2002,27:287. |
| [7] | Mishima R;Miyamura H;Sakai T;Kuriyama N, Ishikawa H, Uehara I .Hydrogen Storage Alloys Rapidly Solidified by the Melt-spinning Method and Their Characteristics as Metal Hydride Electrodes[J].Journal of Alloys and Compounds,1993,192:176. |
| [8] | Li Chuanjian;Wang Xinlin;Li Xiumei;Wang Chongyu .The Hydrogen Storage Properties of MmNi3.8Co0.6Mn0.55Ti0.05 Compounds Prepared by Conventional and Melt-spi-nning Techniques[J].Electrochimica Acta,1998,43:1839. |
| [9] | Lei Yongquan;Zhang Shukai;Lü Guanglie;Chen Lixin, Wang Qidong, Wu Feng .Influence of the Material Proces-sing on the Electrochemical Properties of Cobalt-free Ml(NiMnAlFe)5 Alloy[J].Journal of Alloys and Compounds,2002,330-332:861-863. |
| [10] | Shu Kangying;Lei Yongquan;Yang Xiaoguang;Zhang Shukai, Chen Lingshen, Lü Guanglie, Wang Qidong .A Co-mparative Study on the Electrochemical Performance of Rapidly Solidified and Conventionally Cast Hydride Electr-ode Alloy Zr(NiMnM)2.1[J].Journal of Alloys and Compounds,1999,290:124. |
| [11] | Zhang Qing'an;Lei Yongquan;Chen Lixin;Wang Qidong .Microstructure and Electrochemical Behavior of a Rapidly Solidified V3TiNi0.56Hf0.24Mn0.15Cr0.1 Hydrogen Storage Alloy[J].Journal of Alloys and Compounds,2000,308:104. |
| [12] | Notten P H L;Hokkeling P .Double-Phase Hydride Forming Compounds: A New Class of Highly Electrocatalytic Materials[J].Journal of the Electrochemical Society,1991,138:1877. |
| [13] | Zheng G.;White RE.;Popov BN. .ELECTROCHEMICAL DETERMINATION OF THE DIFFUSION COEFFICIENT OF HYDROGEN THROUGH AN LANI4.25AL0.75 ELECTRODE IN ALKALINE AQUEOUS SOLUTION[J].Journal of the Electrochemical Society,1995(8):2695-2698. |
| [14] | Tsukahara M;Takahashi K;Mishima T;Isomura A, Sakai T .Vanadium-based Solid Solution Alloys with Three-dimen-sional Network Structure for High Capacity Metal Hydride Electrodes[J].Journal of Alloys and Compounds,1997,253-254:583. |
| [15] | Kuriyama N;Sakai T;Miyamura H;Uehara I, Ishikawa H, Iwasaki T .Electrochemical Impedance and Deterioration Behavior of Metal Hydride Electrodes[J].Journal of Alloys and Compounds,1993,202:183. |
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