TY - JOUR
T1 - Study on electrochemical properties of rapid solidified TiV-based hydrogen storage alloy
AU - Zhu, Yunfeng
AU - Pan, Hongge
AU - Liu, Yongfeng
AU - Li, Rui
AU - Jin, Qinwei
AU - Wang, Qidong
PY - 2004/3
Y1 - 2004/3
N2 - The phase structures and the electrochemical properties of the TiV-based hydrogen storage electrode alloy Ti0.8Zr0.2V2.4 Mn0.48Cr0.72Ni0.9 after rapid solidification have been studied. It is found by XRD analysis that the alloy mainly consists of C14 Laves phase with hexagonal structure and V-based solid solution phase with BCC structure. The rapid solidification leads to the decrease in content of the C14 Laves phase in the alloy. Electrochemical analyses show that the rapid solidification reduces the maximum discharge capacity, increases the activation cycles, elevates the surface reaction resistance and worsens the kinetic properties of the alloy electrode. However, the cyclic stability of the alloy electrode is improved greatly after rapid solidification.
AB - The phase structures and the electrochemical properties of the TiV-based hydrogen storage electrode alloy Ti0.8Zr0.2V2.4 Mn0.48Cr0.72Ni0.9 after rapid solidification have been studied. It is found by XRD analysis that the alloy mainly consists of C14 Laves phase with hexagonal structure and V-based solid solution phase with BCC structure. The rapid solidification leads to the decrease in content of the C14 Laves phase in the alloy. Electrochemical analyses show that the rapid solidification reduces the maximum discharge capacity, increases the activation cycles, elevates the surface reaction resistance and worsens the kinetic properties of the alloy electrode. However, the cyclic stability of the alloy electrode is improved greatly after rapid solidification.
KW - C14 Laves phase
KW - Electrochemical property
KW - Rapid solidification
KW - TiV-based hydrogen storage electrode alloy
KW - V-based solid solution phase
UR - http://www.scopus.com/inward/record.url?scp=2942752350&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:2942752350
SN - 1002-185X
VL - 33
SP - 262
EP - 266
JO - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
JF - Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
IS - 3
ER -