La_(4-x)Pr_xMgNi_(19)(x=0~2.0)贮氢合金的相结构与电化学性能
邓安强; 罗永春; 阎汝煦; 王大辉; 康龙
2008
Source Publication稀有金属材料与工程
ISSN1002-185X
Volume37Issue:6Pages:1037-1041
Abstract系统研究了Pr替代La后对La_(4-x)Pr_xMgNi_(19)(x=0~2.0)贮氢合金的相结构与电化学性能影响。结构分析表明,合金主要由Pr_5Co_(19)、Ce_5Co_(19)、CaCu_5型物相组成。随着x的增加,合金中A_5B_(19)(Pr_5Co_(19)+Ce_5Co_(19))型物相逐渐增多,同时各物相的晶胞参数(a,c)和晶胞体积(V)均呈线性减小。电化学测试表明,随着x的增加,合金活化性能显著降低,合金贮氢量先增加后减少,但合金循环寿命有所提高。合金的高倍率放电性能(HRD)随着x的增加先增加后减少,在x=1.2时有最大值(HRD_(900)=94.77%)。合金的HRD主要由合金表面的电催化活性所控制。
Keyword贮氢合金 相结构 电化学性能
Indexed ByCSCD
Language中文
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMETALLURGY METALLURGICAL ENGINEERING
CSCD IDCSCD:3323578
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/76078
Collection材料科学与工程学院
Affiliation兰州理工大学, 有色金属新材料国家重点实验室, 兰州, 甘肃 730050, 中国
First Author AffilicationColl Mat Sci & Engn
First Signature AffilicationColl Mat Sci & Engn
Recommended Citation
GB/T 7714
邓安强,罗永春,阎汝煦,等. La_(4-x)Pr_xMgNi_(19)(x=0~2.0)贮氢合金的相结构与电化学性能[J]. 稀有金属材料与工程,2008,37(6):1037-1041.
APA 邓安强,罗永春,阎汝煦,王大辉,&康龙.(2008).La_(4-x)Pr_xMgNi_(19)(x=0~2.0)贮氢合金的相结构与电化学性能.稀有金属材料与工程,37(6),1037-1041.
MLA 邓安强,et al."La_(4-x)Pr_xMgNi_(19)(x=0~2.0)贮氢合金的相结构与电化学性能".稀有金属材料与工程 37.6(2008):1037-1041.
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