以NH4VO3、Al等为原料采用自蔓延高温法制备了钒基固溶体型贮氢合金V3TiNi0.56Al0.2,研究了V3TiNi0.56Al0.2贮氢合金的组织结构和电化学性能.结果表明:铸态贮氢合金V3TiNi0.56Al0.2的最大放电容量为350mA·h/g,活化性能较好,但氢的扩散系数小,循环性能和高倍率放电能力差.合金失去活性的原因是循环过程中钒基固溶体主相不断溶解到电解液中,通过真空熔炼处理可以改善合金的循环性能和高倍率放电性能.
参考文献
| [1] | Tsukahara M.;Kamiya T. .Hydrogen Storage and Electrode Properties of V-Based Solid Solution Type Alloys Prepared by a Thermic Process[J].Journal of the Electrochemical Society,2000(8):2941-2944. |
| [2] | Takuya Tamura;Atsunori Kamegawa;Hitoshi Takamura;Masuo Okada .Protium absorption properties of Ti-Cr-V alloys in low hydrogen pressure regions[J].Materials transactions,2001(9):1862-1865. |
| [3] | Koji S;Takuya T;Takahiro K;Takayuki G Atsunori K Hitoshi T Masuo O .New BCC solid solution alloys with high protium absorption and desorption capacity[J].Materials Transactions,2002,43(05):1114-1119. |
| [4] | Tsukahara M;Takahashi K;Mishima T .Vanadium-based solid solution alloys with three-dimensional network structure for high capacity metal hydride electrodes[J].Journal of Alloys and Compounds,1997,253:583-586. |
| [5] | Tsukahara M;Takahashi K;Mishima T .The TiV3Ni0.56 hydride electrode:its electrochemical and cycle life characterization[J].Journal of Alloys and Compounds,1995,231:616-620. |
| [6] | Tsukahara M;Takahashi K;Mishima T .Influence of various additives in vanadium-based alloys V3TiNi0.56 on secondary phase formation,hydrogen storage properties and electrode properties[J].Journal of Alloys and Compounds,1996,245(1-2):59-65. |
| [7] | Zhang QA.;Chen LX.;Wang QD.;Lei YQ. .Electrochemical behaviors of a V3TiNi0.5Hf0.24 alloy electrode during charge-discharge cycling[J].Materials Chemistry and Physics,2001(1):58-61. |
| [8] | Yunfeng Zhu;Hongge Pan;Mingxia Gao;Yongfeng Liu;Qidong Wang .Influence of annealing treatment on Laves phase compound containing a V-based BCC solid solution phase―Part Ⅰ: Crystal structures[J].International journal of hydrogen energy,2003(4):389-394. |
| [9] | Okada M.;Kuriiwa T.;Kamegawa A.;Takamura H. .Role of intermetallics in hydrogen storage materials[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(0):305-312. |
| [10] | Park J G;Kim D M;Jang KJ;Han J S,Cho K,Lee J Y .The intrinsic degradation behavior of (V0.53Ti0.47)0.925Fe0.075 alloy during induced hydrogen absorption-desorption cycling[J].Journal of Alloys and Compounds,2003,349:212-216. |
| [11] | Chan-Yeol Seo;Jin-Ho Kim;Paul S. Lee .Hydrogen storage properties of Vanadium-based b.c.c. solid solution metal hydrides[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2003(1/2):252-257. |
| [12] | Singh A K;Srivastava O N .On the synthesis,characterization and hydrogenation behaviour of V-Ti-Fe alloy[J].International of Hydrogen Energy,1995,20:647-651. |
| [13] | Akio Kawabata;Hideo Yoshinaga;Seiji Sakurai;Makoto Tsukahara;Yoshihisa Kamiya;Kunio Takahashi;Tetsuo Sakai;Hiroyuki Takeshita;Nobuhiro Kuriyama;Jun Shi .A novel thermic process for producing V-based solid solution type hydrogen storage alloy[J].日本金属学会誌,2000(4):221-226. |
| [14] | Tsukahara M;Takahashi K .Metal hydride electrodes based on solid solution type alloy TiV3Nix(0≥x≥0.75)[J].Journal of Alloys and Compounds,1995,226:203-208. |
| [15] | Tsukahara M;Takahashi K;Mishima T et al.An improvement in the properties of hydrogen storage alloy by copper microencapsulation[J].JOURNAL OF ALLOYS AND COMPOUNDS,1995,224:162-169. |
| [16] | Yi Y C;Moore J J .Self-propagating high-temperature synthesis(SHS) of powder compacted materials[J].Journal of Materials Science,1990,25:1159-1168. |
| [17] | 李荣 .钒基固溶体贮氢材料的研究[D].重庆大学,2005. |
| [18] | Xianxia Yuan;Naixin Xu .Determination of hydrogen diffusion coefficient in metal hydride electrode by cyclic voltammetry[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2001(1/2):113-117. |
| [19] | Tsukahara M;Takahashi K;Mishima T et al.Heat-treatment effects of V-based solid solution alloy with TINi-based network structure on hydrogen and electrode properties[J].JOURNAL OF ALLOYS AND COMPOUNDS,1996,243:133-138. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%