Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2016, Vol. 27 ›› Issue (2): 32 doi: 10.1007/s41365-016-0029-2

• NUCLEAR CHEMISTRY,RADIOCHEMISTRY,RADIOPHARMACEUTICALS AND NUCLEAR MEDICINE • Previous Articles     Next Articles

Investigation on hydrogen absorption/desorption properties of as-cast La(12x)MgxNi4.25Al0.75 (x 5 0.0, 0.1, 0.2, 0.3) alloys for tritium storage

Li-Jun Lü 1,3, Hong-Hui Cheng 1,2, Xing-Bo Han 1, Guan-Hong Lei 1, Wei Liu 1, Xiao-Lin Li 1    

  1. 1 Shanghai Institute of Applied Physics, Chinese Academy of
    Sciences, Jiading Campus, Shanghai 201800, China
    2 College of Mechanical Engineering, Yangzhou University,
    Yangzhou 225127, China
    3 University of Chinese Academy of Sciences, Beijing 100049,
    China 3 University of Chinese Academy of Sciences, Beijing 100049,
    China  
  • Contact: Xiao-Lin Li E-mail:lixl@sinap.ac.cn
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Li-Jun Lü, Hong-Hui Cheng, Xing-Bo Han, Guan-Hong Lei, Wei Liu, Xiao-Lin Li . Investigation on hydrogen absorption/desorption properties of as-cast La(12x)MgxNi4.25Al0.75 (x 5 0.0, 0.1, 0.2, 0.3) alloys for tritium storage.Nuclear Science and Techniques, 2016, 27(2): 32     doi: 10.1007/s41365-016-0029-2

Abstract:

La(1?x)Mg x Ni4.25Al0.75 (x = 0.0, 0.1, 0.2, 0.3) alloys for tritium storage were prepared by a method of electromagnetic induction melting. The crystal structure and hydrogen storage performance of the as-cast alloys were investigated. The results showed that a single phase of LaNi4Al was in the alloys with x = 0.0 and 0.1 and that LaNi4Al and second phase of (La,Mg)Ni3 and AlNi3 were in the alloys with x = 0.2 and 0.3. On the other hand, the plateau pressures of P–C isotherms of the alloys were increased with the rise of the x value from 0.2 to 0.3 and the hydrogen storage capacity was obviously degraded simultaneously. It was found that the alloy had faster absorption kinetics as the proportion of Mg increased from 0.1 to 0.3.

Key words: Tritium, RE tritium storage alloy, Mg substitution, Hydrogen storage properties