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La0.6Nd0.4Ni4.8Mn0.2Cux(x=0~0.4)贮氢合金的晶体结构及热力学性能
Alternative TitleInvestigation on Crystal Structure and Thermodynamic Properties of La0.6Nd0.4Ni4.8Mn0.2Cux (x=0~0.4) Hydrogen Storage Alloys
Li Shenlan; Cheng Honghui; Deng Xiaoxia; Chen Wei; Chen Demin; Yang Ke
2008
Source Publication稀有金属材料与工程
ISSN1002-185X
Volume37.0Issue:010Pages:1696-1700
Abstract研究了Cu含量变化对La0.6Nd0.4Ni4.8Mn0.2Cux(x=0,0.1,0.2,013,0.4)合金系的晶胞参数、热力学性能以及贮氢性能的影响,讨论了晶胞参数与吸放氢平台压力以及吉布斯自由能之间的关系。研究结果表明,随着Cu含量的增加,晶胞参数a增加,c减小,晶胞体积先增大后减小;吸放氢平台压力随着晶胞参数a的增加呈线性降低:La0.6Nd0.4Ni4.8Mn0.2Cux合金的Seitz半径随着Cu含量的增加而减小,并且与△Sd/△Hd之间呈现非常好的线性关系,与△Sa/△Ha之间存在双曲线关系。
Other AbstractThe influences of Cu content on the crystal structure, thermodynamic properties and hydrogen storage performance of La0.6Nd0.4Ni4.8Mn0.2Cux (x=0, 0.1, 0.2, 0.3, 0.4) alloys were investigated and the relationships among the lattice parameter, plateau pressure and Gibbs free energy were analyzed. It was found that with the increase of the Cu content, the lattice parameter a shrunk and c expanded while the cell volume increased when x≤0.2 and then decreased when x≥0.3. The plateaw pressure linearly decreased with the increase of a. The Seitz radius decreased with the increase of the Cu content and showed a clear linear relationship with △Sd/△and an obvious hyperbolic relationship with △Sa/△Ha.
Keyword贮氢合金 非化学计量比 平台压力 晶胞参数 热力学性能
Indexed ByCSCD
Language中文
CSCD IDCSCD:3420975
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/151052
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
Li Shenlan,Cheng Honghui,Deng Xiaoxia,等. La0.6Nd0.4Ni4.8Mn0.2Cux(x=0~0.4)贮氢合金的晶体结构及热力学性能[J]. 稀有金属材料与工程,2008,37.0(010):1696-1700.
APA Li Shenlan,Cheng Honghui,Deng Xiaoxia,Chen Wei,Chen Demin,&Yang Ke.(2008).La0.6Nd0.4Ni4.8Mn0.2Cux(x=0~0.4)贮氢合金的晶体结构及热力学性能.稀有金属材料与工程,37.0(010),1696-1700.
MLA Li Shenlan,et al."La0.6Nd0.4Ni4.8Mn0.2Cux(x=0~0.4)贮氢合金的晶体结构及热力学性能".稀有金属材料与工程 37.0.010(2008):1696-1700.
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