研究了冷却速率对Tiv2.1Ni04zr0.06CuomCr0.1合金的相结构及电化学性能的影响.XRD、EBI、EDS分析表明,合金主要由V基固溶体主相和以网状分布于主相晶界的Ti2Ni基第二相组成.电化学测试表明,冷却速率较快时合金的最大放电容量、交换电流密度、极限电流密度和循环稳定性都得到提高.而高倍率性能下降是由于在较大的电流密度下快冷样品中第二相催化相在碱液中的溶解析出速率较快造成的.
参考文献
| [1] | Tsukahara M.;Isomura A.;Sakai T.;Takahashi K. .Influence of oxygen on hydrogen storage and electrode properties for micro-designed V-based battery alloys[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,1998(1/2):257-263. |
| [2] | Tsukahara M;Takahashi K;Mishima T et al.[J].Journal of Alloys and Compounds,1997,253-254:583. |
| [3] | Tsukahara M;Takahashi K;Mishima T et al.[J].Journal of Alloys and Compounds,1996,243:133. |
| [4] | 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. |
| [5] | 陈立新,李露,王新华,代发帮,郑坊平,雷永泉.V2.1TiNi0.4Zrx（x=0～0.06）储氢电极合金的相结构及电化学性能[J].物理化学学报,2006(05):523-527. |
| [6] | Guo R;Chen L X;Lei Y Q et al.[J].Journal of Alloys and Compounds,2003,352:270. |
| [7] | Qiao Yuqing;Zhao Minshou;Zhu Xinjian et al.[J].International Journal of Hydrogen Energy,2007,32:3427. |
| [8] | Pan Hongge;Li Rui;Liu Yongfeng et al.[J].Journal of Alloys and Compounds,2008,463:189. |
| [9] | Liu Yongfeng;Zhang Shanshan;Pan Hongge et al.[J].International Journal of Hydrogen Energy,2008,33:728. |
| [10] | Miao He;Gao Mingxia;Pan Hongge et al.[J].Journal of Power Sources,2008,184:627. |
| [11] | Qiu Shu-Jun;Sun Li-Xian;Fen Xu et al.[J].International Journal of Hydrogen Energy,2009,34:7246. |
| [12] | Chiaki Iwakura;Ryuji Shin-ya;Keisuke Miyanohara;Shinji Nohara;Hiroshi Inoue .Effects of Ti-V substitution on electrochemical and structural characteristics of MgNi alloy prepared by mechanical alloying[J].Electrochimica Acta,2001(18):2781-2786. |
| [13] | Park Jun-Young;Park Choong-Nyeon;Park Chan-Jin et al.[J].International Journal of Hydrogen Energy,2007,32:4215. |
| [14] | Wang Yanzhi;Zhao Minshou;Shucun Li et al.[J].Electrochimica Acta,2008,53:7831. |
| [15] | Kim Jong-Yun;Park Chan-Jin;Shim Jong-Sn et al.[J].Journal of Power Sources,2008,180:648. |
| [16] | Yu X B;Wu Z;Huang T S .[J].Journal of Alloys and Compounds,2009,476:787. |
| [17] | Singh B K;Shim G;Cho Sung-WooL .[J].Journal of Alloys and Compounds,2009,478:785. |
| [18] | Wang Yanzhi;Zhan Minshou;Limin Wang .[J].International Journal of Hydrogen Energy,2009,34:2646. |
| [19] | 余学斌,吴铸,夏保佳.快淬对Ti-V基BCC相合金相结构和储氢性能的影响[J].稀有金属材料与工程,2005(07):1047-1050. |
| [20] | Zhu Yunfeng;Liu Yanfang;Hua Feng et al.[J].Journal of Alloys and Compounds,2008,463:528. |
| [21] | Jia Yanmin;Chen Lixin;Xiao Xuezhang et al.[J].International Journal of Hydrogen Energy,2009,34:7756. |
| [22] | Notten P H L;Hokkeling E J .[J].Journal of the Electrochemical Society,1991,138:1877. |
| [23] | Senoh H;Morimoto K;Inoue H J et al.[J].JEleetrochem Soc,2000,147(07):2451. |
| [24] | Wang C S;Wang X H;Lei Y Q et al.[J].International Journal of Hydrogen Energy,1997,22:1117. |
| [25] | Kuriyama N;Chartouni D;Tsukahara M et al.[J].Electrochemical and Solid State Letters,1998,1(01):37. |
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%