Crystal structure analysis on maximum hydrogen capacity of LaNi5

被引：0

作者：

Wang, H ^{[1
]}

Liu, ZY ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Astronaut, Harbin 150001, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2004年 / 33卷 / 03期

关键词：

LaNi5; crystal structure; hydrogen capacity;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

After the crystal structure of LaNi5 being analyzed, it has been included that there may be three twelve-face polyhedrons, nine octahedrons, six hexahedrons and thirty six tetrahedrons in an unit cell of LaNi5. The interstice radii of tetrahedron is smaller than that of hydrogen atom, so the tetrahedrons can not storage hydrogen. Then there will be 18 hydrogen atoms that can be storaged in an unit cell. This means that the ratio of hydrogen atom to metal atom is H/M=1. The maximum hydrogen capacity of LaNi5 is 1.379%.

引用

页码：239 / 241

页数：3

共 9 条

[1] CHE YX, 1999, PERIOD ELEMENTS, P112
[2] Hydrogen storage properties of the mechanically alloyed LaNi5-based materials
Liang, G
Huot, J
Schulz, R
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2001, 320 (01) : 133 - 139
[3] Morinaga A, 2002, J ALLOY COMPD, V330, P20, DOI 10.1016/S0925-8388(01)01527-4
[4] Roles of the hydride forming and non-forming elements in hydrogen storage alloys
Nakatsuka, K
Yoshino, M
Yukawa, H
Morinaga, M
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 293 : 222 - 226
[5] Qian CF, 2000, RARE METAL MAT ENG, V29, P25
[6] Hydrogen in lanthan-nickel storage alloys
Schur, DV
Zaginaichenko, SY
Matysina, ZA
Smityukh, I
Pishuk, VK
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 330 : 70 - 75
[7] VAINSHTEIN BK, 1982, MODERN CRYSTALLOGRAP, V2, P12
[8] Chemical bond state and hydride stability of hydrogen storage alloys
Yukawa, H
Matsumura, T
Morinaga, M
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 1999, 293 : 227 - 230
[9] ZHOU GD, 2001, FDN STRUCTURE CHEM, P475

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