广西科学

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刘淑辉,蒋龙,栾天阳,黎光旭,韦文楼,郭进.La_0.6Ce_xNd_0.4-xNi_3.0Co_0.2Al_0.3(x=0~0.4)合金储氢性能研究[J].广西科学,2008,15(4):404-407. [点击复制]
LIU Shu-hui,JIANG Long,LUAN Tian-yang,LI Guang-xu,WEI Wen-lou,GUO Jin.Study on the Hydrogen Storage Characteristics of La_0.6Ce_xNd_0.4-xNi_3.0Co_0.2Al_0.3 (x=0~0.4) Alloys[J].Guangxi Sciences,2008,15(4):404-407. [点击复制]

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La_0.6Ce_xNd_0.4-xNi_3.0Co_0.2Al_0.3(x=0~0.4)合金储氢性能研究
刘淑辉, 蒋龙, 栾天阳, 黎光旭, 韦文楼, 郭进
0 字体:加大+\|默认\|缩小-
(广西大学物理科学与工程技术学院, 广西南宁 530004)

摘要:

采用电弧炉熔炼方法制备La_0.6Ce_xNd_0.4-xNi_3.0Co_0.2Al_0.3(x=0~0.4)系列合金,并对合金的储氢性能和电化学性能进行测试。测试结果表明,合金在Ce=0时具有最高的电化学容量(284.2mAh/g)和储氢量(0.93wt%)。Ce的添加会降低合金放电容量,但是能够改善合金的循环稳定性能。

关键词: 合金储氢性能热力学参数

DOI：

投稿时间：2008-01-27

基金项目:国家自然科学基金项目(50561002);广西科学基金项目(桂科自0728028);广西大学科研重点项目(2004ZD04);广西教育厅科研(桂教科研[2006]26-8);广西大学硕士研究生科研创新项目资助

Study on the Hydrogen Storage Characteristics of La_0.6Ce_xNd_0.4-xNi_3.0Co_0.2Al_0.3 (x=0~0.4) Alloys

LIU Shu-hui, JIANG Long, LUAN Tian-yang, LI Guang-xu, WEI Wen-lou, GUO Jin

(College of Physics Science and Technology, Guangxi University, Nanning, Guangxi, 530004, China)

Abstract:

La_0.6Ce_xNd_0.4-xNi_3.0Co_0.2Al_0.3 (x=0~0.4)hydrogen storage alloys were prepared by induction melting, the hydrogen storage and electrochemical properties of the alloys were measured and analyzed in detail. The results show that La_0.6Nd_0.4Ni_3.0Co_0.2Al_0.3 alloy has better hydrogen storage capacity and higher electrochemical properties. The addition of Ce can decrease the discharge capacity but enhance the cycling stabilities.

Key words: alloy hydrogen storage property thermodynamic parameter

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