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| Al的添加对Mg2Ni储氢合金结构和氢扩散能力的影响研究 | |
| 引用本文： | 谢昭明,付安庆,陈玉安,潘复生,丁培道. Al的添加对Mg2Ni储氢合金结构和氢扩散能力的影响研究[J]. 功能材料, 2006, 37(4): 601-603 |
| 作者姓名： | 谢昭明 付安庆 陈玉安 潘复生 丁培道 |
| 作者单位： | 重庆大学,化学化工学院,重庆,400044;重庆大学,材料科学与工程学院,重庆,400044 |
| 基金项目： | 国家科技攻关项目 , 重庆市应用基础研究基金 |
| 摘 要： | 采用烧结-机械球磨二步法制备了Mg2-xAlxNi(x=0、0.3)储氢合金材料,研究了Al元素的加入对Mg2Ni储氢合金结构和氢扩散能力的影响.XRD和SEM研究表明Al 元素的加入会使储氢合金产生Al3Ni2和Mg3AlNi2新相,并且在表面覆盖分布各异的棱角多边形颗粒,利用循环伏安法测定了Mg2-xAlxNi(x=0、0.3)储氢电极的氢扩散系数,结果表明:Al元素的加入能显著改善Mg2Ni储氢合金结构,提高了氢扩散能力. |
| 关 键 词： | 镁基储氢合金 储氢电极 循环伏安 扩散系数 |
| 文章编号： | 1001-9731(2006)04-0601-03 |
| 收稿时间： | 2005-08-02 |
| 修稿时间： | 2005-12-22 |
Effect of Al addition on microstructure and hydrogen diffusion capability of Mg2Ni alloy |
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| XIE Zhao-ming,FU An-qing,CHEN Yu-an,PAN Fu-sheng,DING Pei-dao. Effect of Al addition on microstructure and hydrogen diffusion capability of Mg2Ni alloy[J]. Journal of Functional Materials, 2006, 37(4): 601-603 | |
| Authors: | XIE Zhao-ming FU An-qing CHEN Yu-an PAN Fu-sheng DING Pei-dao |
| Affiliation: | 1. The College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044,China; 2. The College of Materials Science and Engineering, Chongqing University, Chongqing 400044,China |
| Abstract: | The Mg-based hydrogen storage alloys Mg_(2-x)Al_xNi(x=0,0.3) were successfully prepared by sintering and mechanical alloying.Effect of Al addition on microstructure and hydrogen diffusion capability of Mg_2Ni Alloy were studied.The structure of these alloys were examined by XRD and SEM.New phase of Al_3Ni_2 and Mg_3AlNi_2 was found in the alloys.The hydrogen diffusion coefficient in Mg_(2-x)Al_xNi alloy was determined by cyclicvoltammetry.The experiment results showed that Al addition has remarkable effects on t he crystal structure and improved hydrogen Diffusion capability. |
| Keywords: | Mg-based hydrogen storage alloy hydrogen storage electrodes cyclicvoltammetry diffusion coefficient |
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