应用化学 ›› 1997, Vol. 0 ›› Issue (1): 89-91.

• 研究论文 • 上一篇    下一篇

镧镍铜钴储氢合金的制备与性质

高恩庆, 周正宇   

  1. 曲阜师范大学化学系 曲阜 273165
  • 收稿日期:1996-04-04 修回日期:1996-07-09 出版日期:1997-02-10 发布日期:1997-02-10
  • 基金资助:
    国家自然科学基金

Preparation and Properties of A La-Ni-Cu-Co Hydrogen Storage Alloy

Gao Enqing, Zhou Zhengyu   

  1. Department of Chemistry, Qufu Normal University, Qufu 273165
  • Received:1996-04-04 Revised:1996-07-09 Published:1997-02-10 Online:1997-02-10

摘要: 以LaNi5为代表的镧系储氢合金有优良的吸放氢性能,抗中毒能力强,因而受到广泛重视[1]. 目前已开发出许多二元及多元镧系合金,并研究了部分合金的表面性质[1~4],但结果并不一致. 本文制备了四元合金LaNi4Cu0.5Co0.5,通过X 射线光电子能谱(XPS)、扫描电镜(SEM)和吸氢测试等方法研究该合金的性质。

关键词: 储氢材料, 镧镍铜钴合金, 制备, 性质, 共沉淀还原扩散法, XPS, 活化

Abstract: Aquarternary hydrogen storage alloy LaNi4Cu0.5Co0.5 was prepared using a copre-cipitation-reduction diffusion method. The alloy is activated easily. The surface species and composition of the alloy were derived from XPS measurements. SEM studies revealed many microcracks formed after activation, favoring rapid hydrogen absorption kinetics.

Key words: hydrogen storage material, La Ni Cu Co alloy, preparation, property, coprecipitation-reduction diffusion method, XPS, activation