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| (La_xNd_y)_(0.90)Mg_(0.10)Ni_(3.09)Mn_(0.12)Co_(0.60)Al_(0.13)贮氢合金自放电性能研究 | |
| 引用本文： | 刘义,商国云,蒿建生,朱惜林,韩树民.(La_xNd_y)_(0.90)Mg_(0.10)Ni_(3.09)Mn_(0.12)Co_(0.60)Al_(0.13)贮氢合金自放电性能研究[J].稀土,2010,31(1). |
| 作者姓名： | 刘义 商国云 蒿建生 朱惜林 韩树民 |
| 作者单位： | 1. 内蒙古稀奥科贮氢合金有限公司,内蒙古,包头,014030 2. 燕山大学环境与化学工程学院,河北,秦皇岛,066004 3. 内蒙古稀奥科贮氢合金有限公司,内蒙古,包头,014030;亚稳材料制备技术与科学国家重点实验室,河北,秦皇岛,066004 4. 内蒙古稀奥科贮氢合金有限公司,内蒙古,包头,014030;燕山大学环境与化学工程学院,河北,秦皇岛,066004 5. 燕山大学环境与化学工程学院,河北,秦皇岛,066004;亚稳材料制备技术与科学国家重点实验室,河北,秦皇岛,066004 |
| 基金项目： | 国家自然科学基金项目资助 |
| 摘 要： | 为了提高La-Mg-Ni基贮氢合金的荷电保持率,本文研究了La/Nd比的变化对La-Mg-Ni基贮氢合金自放电性能的影响。随着Nd替代La量的增加,(LaxNdy)0.9Mg0.10Ni3.09Mn0.12Co0.60Al0.13(x/y=5,4,3,2,1)合金的荷电保持率先增大后减小,当x/y=4时,其荷电保持率达到最大值80.8%(318 K)。合金电极贮存后,FESEM-EDS和XRD分析表明,合金颗粒表面形成了Mg(OH)2和Nd(OH)3。P-C-T曲线和Tafel极化测试表明,随着Nd含量的增加,金属氢化物的稳定性呈现先增加后降低和腐蚀电流先减小后增大的规律。 |
| 关 键 词： | 贮氢合金 自放电性能 热力学性能 镍/金属氢化物电池 |
Study on Self-discharge Property of (La_xNd_y)_(0.90)Mg_(0.10)Ni_(3.09)Mn_(0.12)Co_(0.60)Al_(0.13) Hydrogen Storage Alloys |
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| LIU Yi,SHANG Guo-yun,HAO Jian-sheng,ZHU Xi-lin,HAN Shu-min.Study on Self-discharge Property of (La_xNd_y)_(0.90)Mg_(0.10)Ni_(3.09)Mn_(0.12)Co_(0.60)Al_(0.13) Hydrogen Storage Alloys[J].Chinese Rare Earths,2010,31(1). | |
| Authors: | LIU Yi SHANG Guo-yun HAO Jian-sheng ZHU Xi-lin HAN Shu-min |
| Affiliation: | LIU Yi1,SHANG Guo-yun2,HAO Jian-sheng1,3,ZHU Xi-lin1,2,HAN Shu-min2,3 (1.Inner Mongolia Rare Earth Ovonic Hydrogen Storage Alloys Corporation Limited,Baotou 014030,China,2.College of Environmental , Chemical Engineering,Yanshan University,Qinhuangdao 066004,3.State Key Laboratory of Metastable Materials Science , Technology,China) |
| Abstract: | In order to improve the charge retention rate(CRT) of the La-Mg-Ni-based hydrogen storage alloys,the effects of La/Nd on the self-discharge property of La-Mg-Ni-based hydrogen storage alloys were studied in this paper.The CRT of(LaxNdy)0.90Mg0.10Ni3.09Mn0.12Co0.60Al0.13(x/y=5,4,3,2,1) alloy electrodes first increased and then decreased with the partial substitution of Nd for La,and the CRT come to the highest value 80.8% when x/y is 4.XRD and FESEM-EDS revealed that Mg(OH)2 and Nd(OH)3 were formed on surfac... |
| Keywords: | storage alloys self-discharge property thermodynamic characteristics Ni/MH battery |
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