Can I read Electrochemical studies on the Ti–Zr–V–Mn–Cr–Ni hydrogen storage electrode alloys on EtoBox?

Electrochemical studies on the Ti–Zr–V–Mn–Cr–Ni hydrogen storage electrode alloys by Yunfeng Zhu; Hongge Pan; Mingxia Gao; Jianxin Ma; Yongquan Lei; Qidong Wang is a scholarly article available to read on EtoBox.

What is Electrochemical studies on the Ti–Zr–V–Mn–Cr–Ni hydrogen storage electrode alloys about?

In this paper, the electrochemical properties of the (Ti0:8Zr0:2)(V0:533Mn0:107Cr0:16Ni0:2)x (x = 2; 3; 4; 5; 6) hydrogen storage electrode alloys have been studied. X-ray powder di raction analysis showed that all alloys mainly consisted of a C14 Laves phase with hexagonal structure and a V-based solid solution phase with BCC structure. The lattice parameters and the unit cell volumes of the two phases decrease when x is increased. The electrochemical performances of the alloy electrodes, including the cycle life, the linear polarization, the anodic polarization, the Tafel polarization and the electrochemical impedance spectra, have been investigated systematically. After considering the global e ect of the non-stoichiometry of B-side elements on the performances of the alloy electrodes, the optimum composition was found to lie in x = 5. Consequently, we believe that the non-stoichiometry is an e ective way to improve the overall electrochemical properties of the Ti-based Laves phase hydrogen storage alloys used for the negative electrodes of Ni-MH secondary batteries.

Author

Yunfeng Zhu; Hongge Pan; Mingxia Gao; Jianxin Ma; Yongquan Lei; Qidong Wang

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0360-3199)

Published

2003

Language

EN