| 球磨镁基贮氢合金的研究 |
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| 引用本文： | 韩晓英,张羊换,王新林,王国清. 球磨镁基贮氢合金的研究[J]. 电池, 2006, 36(3): 170-172 |
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| 作者姓名： | 韩晓英 张羊换 王新林 王国清 |
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| 作者单位： | 钢铁研究总院功能材料研究所,北京,100081;钢铁研究总院功能材料研究所,北京,100081;内蒙古科技大学材料学院,内蒙古,包头,014010 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划)，内蒙古科技计划，内蒙古高等学校科研项目 |
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| 摘 要： | 在空气中用机械合金化制备了Mg2Ni贮氢合金,并用XRD、SEM、TEM和充放电测试等研究了合金的组成、结构和电化学性能。在非真空和没有保护气的条件下球磨,得到的Mg2Ni贮氢合金具有良好的活化性能及较高的贮氢容量。随着球磨时间的增加,容量也相应增加,当球磨30 h时,合金容量可达482.75 mAh/g,但在碱液中的氧化、腐蚀,使其容量衰退很快,循环稳定性不理想。
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| 关 键 词： | 镁基贮氢合金 机械合金化 电化学性能 |
| 文章编号： | 1001-1579(2006)03-0170-03 |
| 修稿时间： | 2005-12-12 |
The study of Mg-based hydrogen storage alloys by ball milling |
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| HAN Xiao-ying,ZHANG Yang-huan,WANG Xin-lin,WANG Guo-qing. The study of Mg-based hydrogen storage alloys by ball milling[J]. Battery Bimonthly, 2006, 36(3): 170-172 |
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| Authors: | HAN Xiao-ying ZHANG Yang-huan WANG Xin-lin WANG Guo-qing |
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| Abstract: | Mg_2Ni hydrogen storage alloy was synthesized by mechanical alloying in air.Its component,structure and electrochemical performance were studied by XRD,SEM, TEM and charge-discharge tests.Mg_2Ni hydrogen storage alloy had good activation performance and high hydrogen storage capacity by ball milling with the environment of non-vacuum and no protecting gas.The capacity increased with the increasing of ball milling time.When the ball milling time was 30 h,the capacity of the alloy could reach to 482.75 mAh/g,but its capacity dropped quickly for the reason of oxidation and corrosion in the alkaline liquor,the cycle stability was not ideal. |
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| Keywords: | Mg-based hydrogen storage alloy mechanical alloying electrochemical performance |
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