Mechanism of the enhancement of discharge rate property for Nd0.8Mg0.2(Ni0.8Co0.2)3.8 hydrogen storage alloy by magnetic annealing

被引：7
|
作者：
Pan Chongchao [1 ,3 ]
Yang Shonglin [1 ]
Yu Ronghai [1 ]
Shi Ji [2 ]
Nakamura, Y. [2 ]
机构：
[1] Tsinghua Univ, Dept Mat Sci & Engn, Key Lab Adv Mat, Beijing 100084, Peoples R China
[2] Tokyo Inst Technol, Dept Met & Ceram Sci, Meguro Ku, Tokyo 1528552, Japan
[3] China Natl Inst Standardizat, Beijing 100088, Peoples R China
来源：
JOURNAL OF RARE EARTHS | 2010年 / 28卷 / 02期
基金：
中国国家自然科学基金;
关键词：
magnetic annealing; hydrogen storage; interstitial orientation; discharge rate property; rare earths; ELECTROCHEMICAL PROPERTIES; CHEMICAL-EQUILIBRIUM; METAL-HYDRIDES; FIELD; ELECTRODES;
D O I：
10.1016/S1002-0721(09)60098-3
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
For further improving the rate properties of Nd0.8Mg0.2(Ni0.8Co0.2)(3.8) hydrogen storage alloy, the alloy was annealed in high magnetic fields (10 T). The results showed that the electrochemical properties and magnetic properties of Nd0.8Mg0.2(Ni0.8Co0.2)(3.8) hydrogen storage alloy were considerably enhanced. And there was no change of the phase composition. The lattice constants of c and c/a ratio increased for the sample magnetically annealed, yielding uniaxial magnetic anisotropy along the c axis. The increase of c and c/a ratio enlarged interstitial volume, leading to a larger diffusion channel for hydrogen atoms, and resulted in high hydrogen storage capacity and rate properties.
引用
收藏
页码：286 / 289
页数：4
相关论文
共 50 条
  • [41] Preparation and hydrogen storage properties of Mg-20 wt.% Mg2Ni0.8Cr0.2 composite with TiO2 nanoparticles
    Wang, X. L.
    Tu, J. P.
    Zhang, X. B.
    Chen, C. P.
    NANOSCIENCE AND TECHNOLOGY, PTS 1 AND 2, 2007, 121-123 : 1293 - 1296
  • [42] Structural and magnetic properties of new Zr(Fe0.8Cu0.2)2 and Zr(Fe0.8Cu0.1Co0.1)2 hydrogen storage materials
    Makridis, S. S.
    Konstantakou, M.
    Steriotis, Th. A.
    Pavlidou, E.
    Efthimiadis, K. G.
    Daniil, M.
    Ioannidou, A.
    Kikkinidis, E. S.
    Stubos, A. K.
    ADVANCED MATERIALS FORUM III, PTS 1 AND 2, 2006, 514-516 : 432 - 436
  • [43] An impact of hydrogenation phase transformation mechanism on the cyclic stabilizing behavior of Zr0.8Ti0.2Co alloy for hydrogen isotope handling
    Yao, Z.
    Liang, Z.
    Xiao, X.
    Huang, X.
    Liu, J.
    Wang, X.
    Zheng, J.
    Kou, H.
    Luo, W.
    Chen, C.
    Chen, L.
    MATERIALS TODAY ENERGY, 2020, 18
  • [44] Structure and electrochemical hydrogen storage characteristics of La0.8-x Pr x Mg0.2Ni3.15Co0.2Al0.1Si0.05 (x=0-0.4) electrode alloys
    Zhang Yang-huan
    Hou Zhong-hui
    Yang Tai
    Zhang Guo-fang
    Li Xia
    Zhao Dong-liang
    JOURNAL OF CENTRAL SOUTH UNIVERSITY, 2013, 20 (05) : 1142 - 1150
  • [45] Structure and electrochemical hydrogen storage characteristics of La0.8−xPrxMg0.2Ni3.15Co0.2Al0.1Si0.05 (x=0–0.4) electrode alloys
    Yang-huan Zhang
    Zhong-hui Hou
    Tai Yang
    Guo-fang Zhang
    Xia Li
    Dong-liang Zhao
    Journal of Central South University, 2013, 20 : 1142 - 1150
  • [46] Structure and electrochemical hydrogen storage characteristics of La0.8-xPrxMg0.2Ni3.15Co0.2Al0.1Si0.05 (x=0-0.4) electrode alloys
    张羊换
    侯忠辉
    杨泰
    张国芳
    李霞
    赵栋梁
    JournalofCentralSouthUniversity, 2013, 20 (05) : 1142 - 1150
  • [47] Effects of the different element substitution on hydrogen storage properties of Ti0.8Zr0.2Mn0.9Cr0.6V0.3M0.2 (M = Fe, Ni, Co)
    Li, Zhongyu
    Yan, Youhua
    Huang, Haixiang
    Liu, Bogu
    Lv, Yujie
    Zhang, Bao
    Lv, Wei
    Yuan, Jianguang
    Wu, Ying
    JOURNAL OF ALLOYS AND COMPOUNDS, 2022, 908
  • [48] Study on the microstructure and the electrochemical properties of Ml0.7Mg0.2Ni2.8Co0.6 hydrogen storage alloy
    Tang, R
    Liu, LQ
    Liu, YN
    Yu, GA
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2003, 28 (08) : 815 - 819
  • [49] A study on improving the cycling stability of (Ti0.8Zr0.2)(V0.533Mn0.107Cr0.16Ni0.2)4 hydrogen storage electrode alloy by means of annealing treatment:: I.: Effects on the structures
    Zhu, YF
    Pan, HG
    Gao, MX
    Liu, YF
    Wang, QD
    JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 347 (1-2) : 279 - 284
  • [50] Effect of substitution of chromium for manganese on structure and electrochemical discharge characteristics of Ti0.8Zr0.2V1.6Mn0.8Ni0.6 multi-phase hydrogen storage electrode alloys
    Wang, GY
    Xu, YH
    Pan, HG
    Chen, CP
    RARE METAL MATERIALS AND ENGINEERING, 2004, 33 (12) : 1308 - 1311
12345