Structural investigation and hydrogen capacity of CaMg2Ni9:: a new phase in the AB2C9 system isostructural with LaMg2Ni9

被引:191
作者
Kadir, K
Kuriyama, N
Sakai, T
Uehara, I
Eriksson, L
机构
[1] Dept Energy & Environm, Osaka Natl Res Inst, Ikeda, Osaka 5638577, Japan
[2] Univ Stockholm, Arrhenius Lab, Dept Struct Chem, S-10691 Stockholm, Sweden
关键词
hydrogen storage alloy; X-ray diffraction; neutron diffraction; thermal analysis; pressure-composition isotherms; electrochemical; crystal structure;
D O I
10.1016/S0925-8388(98)00965-7
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A new ternary magnesium-based alloy CaMg2Ni9 has been synthesized, and its crystal structure was determined by Guinier-Hagg X-ray and neutron powder diffraction, The compound has a hexagonal structure and is isostructural with LaMg2Ni9 type, with Ca at the La atom site. The hydrogen absorption/desorption properties have been determined by thermal analysis and pressure-composition isotherms. The electrochemical properties of the alloy were also examined. (C) 1999 Elsevier Science BN. All rights reserved.
引用
收藏
页码:145 / 154
页数:10
相关论文
共 34 条
[1]   CALCIUM-NICKEL INTERMETALLIC COMPOUNDS [J].
BUSCHOW, KHJ .
JOURNAL OF THE LESS-COMMON METALS, 1974, 38 (01) :95-98
[2]   CRYSTAL-STRUCTURE OF CANI5H USING X-RAY-DIFFRACTION WITH INSITU HYDRIDING [J].
CALVERT, LD ;
MURRAY, JJ ;
GAINSFORD, GJ ;
TAYLOR, JB .
MATERIALS RESEARCH BULLETIN, 1984, 19 (01) :107-113
[3]   THE CRYSTAL STRUCTURES OF PUNI3 AND CENI3 [J].
CROMER, DT ;
OLSEN, CE .
ACTA CRYSTALLOGRAPHICA, 1959, 12 (09) :689-694
[4]   STRUCTURAL RELATIONSHIPS IN RARE EARTH-TRANSITION METAL-HYDRIDES [J].
DUNLAP, BD ;
VICCARO, PJ ;
SHENOY, GK .
JOURNAL OF THE LESS-COMMON METALS, 1980, 74 (01) :75-79
[5]   SYNTHESIS AND HYDROGEN STORAGE CHARACTERISTICS OF THE COMPOSITE ALLOY LA2MG17-X WT-PERCENT-MMNI4.5AL0.5 [J].
DUTTA, K ;
SRIVASTAVA, ON .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 1993, 18 (05) :397-403
[6]  
DWIGHT AE, 1961, T ASM, V0053
[7]  
HAHN T, 1989, INT TABLES CRYSTALLO, VA, P14
[8]   AN AUTOMATIC MICRO-DENSITOMETER FOR X-RAY-POWDER DIFFRACTION PHOTOGRAPHS [J].
JOHANSSON, KE ;
PALM, T ;
WERNER, PE .
JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS, 1980, 13 (12) :1289-1291
[9]   Synthesis and structure determination of a new series of hydrogen storage alloys; RMg2Ni9 (R=La, Ce, Pr, Nd, Sm and Gd) built from MgNi2 laves-type layers alternating with AB(5) layers [J].
Kadir, K ;
Sakai, T ;
Uehara, I .
JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 257 (1-2) :115-121
[10]   CRYSTAL-STRUCTURE OF R5CO19 [J].
KHAN, Y .
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1974, B 30 (JUN15) :1533-1537