Acta Chimica Sinica ›› 2007, Vol. 65 ›› Issue (7): 575-578. Previous Articles     Next Articles

Original Articles

N,N-二甲基甲酰胺中电沉积制备镁镍储氢合金

张晓燕*, 刘卫红   

  1. (上海大学化学系 上海 200444)
  • 收稿日期:2006-09-21 修回日期:2006-11-04 出版日期:2007-04-14 发布日期:2007-04-14
  • 通讯作者: 张晓燕

Electrodeposition for the Preparation of Mg-Ni Hydrogen Storage Alloy in N,N-Dimethylformamide

ZHANG Xiao-Yan*; LIU Wei-Hong   

  1. (Chemistry Department, Shanghai University, Shanghai 200444)
  • Received:2006-09-21 Revised:2006-11-04 Online:2007-04-14 Published:2007-04-14

Smooth and uniform black Mg-Ni hydrogen storage alloy films are successfully electrodeposited from N,N-dimethylformamide (DMF) solution with proper complexing agent and additive agent at potentiostatic electrolysis. And the mechanism of co-deposition is discussed. XRD results show that there is amorphous Mg-Ni phase and microcrystalline Mg phase in the electrodeposits. SEM images of the deposit and the EDS analysis show that grains of the alloy exist as glomeration. AAS analysis indicates that the molar fraction of Mg is up to 27.3%, and the maximum discharge specific capacity of the deposit is up to 172.4 mAh/g.

Key words: Mg-Ni alloy, hydrogen storage alloy, electrodeposition, N,N-dimethylformamide