Study on electrochemical properties of rapid solidified TiV-based hydrogen storage alloy

Yunfeng Zhu; Hongge Pan; Yongfeng Liu; Rui Li; Qinwei Jin; Qidong Wang

Study on electrochemical properties of rapid solidified TiV-based hydrogen storage alloy

Yunfeng Zhu, Hongge Pan, Yongfeng Liu, Rui Li, Qinwei Jin, Qidong Wang

Zhejiang University

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The phase structures and the electrochemical properties of the TiV-based hydrogen storage electrode alloy Ti_0.8Zr_0.2V_2.4 Mn_0.48Cr_0.72Ni_0.9 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.

Original language	English
Pages (from-to)	262-266
Number of pages	5
Journal	Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering
Volume	33
Issue number	3
State	Published - Mar 2004
Externally published	Yes

Keywords

C14 Laves phase
Electrochemical property
Rapid solidification
TiV-based hydrogen storage electrode alloy
V-based solid solution phase

Cite this

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title = "Study on electrochemical properties of rapid solidified TiV-based hydrogen storage alloy",

abstract = "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.",

keywords = "C14 Laves phase, Electrochemical property, Rapid solidification, TiV-based hydrogen storage electrode alloy, V-based solid solution phase",

author = "Yunfeng Zhu and Hongge Pan and Yongfeng Liu and Rui Li and Qinwei Jin and Qidong Wang",

year = "2004",

month = mar,

language = "英语",

volume = "33",

pages = "262--266",

journal = "Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering",

issn = "1002-185X",

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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

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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 -

Study on electrochemical properties of rapid solidified TiV-based hydrogen storage alloy

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