Degradation mechanisms of Ti-V-based multiphase hydrogen storage alloy electrode

Yunfeng Zhu; Hongge Pan; Mingxia Gao; Yongfeng Liu; Rui Li; Yongquan Lei; Qidong Wang

doi:10.1016/S0360-3199(03)00153-8

Degradation mechanisms of Ti-V-based multiphase hydrogen storage alloy electrode

Yunfeng Zhu, Hongge Pan, Mingxia Gao, Yongfeng Liu, Rui Li, Yongquan Lei, Qidong Wang

Zhejiang University

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

23 Scopus citations

Abstract

The degradation mechanisms of the Ti-V-based multiphase hydrogen storage electrode alloy (Ti_0.8Zr_0.2)(V_0.533Mn _0.107Cr_0.16Ni_0.2)₂ during electrochemical cycling in alkaline electrolyte have been studied systematically by using XRD, SEM, XPS, AES and EIS measurements. The results show that the irreversible hydrogen absorbed in the alloy increases with cycling. The pulverization and oxidation/corrosion of the alloy during cycling are two main factors responsible for the fast degradation of the electrode. It was found that a passive Ti oxide film formed on the alloy surface, leading to an increase in charge transfer resistance on the alloy surface and a decrease in exchange current density I₀.

Original language	English
Pages (from-to)	313-318
Number of pages	6
Journal	International Journal of Hydrogen Energy
Volume	29
Issue number	3
DOIs	https://doi.org/10.1016/S0360-3199(03)00153-8
State	Published - Mar 2004
Externally published	Yes

Keywords

Degradation mechanisms
Electrochemical reactions
Electrode materials
Hydrogen absorbing materials
X-ray diffraction

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/S0360-3199(03)00153-8

Cite this

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title = "Degradation mechanisms of Ti-V-based multiphase hydrogen storage alloy electrode",

abstract = "The degradation mechanisms of the Ti-V-based multiphase hydrogen storage electrode alloy (Ti0.8Zr0.2)(V0.533Mn 0.107Cr0.16Ni0.2)2 during electrochemical cycling in alkaline electrolyte have been studied systematically by using XRD, SEM, XPS, AES and EIS measurements. The results show that the irreversible hydrogen absorbed in the alloy increases with cycling. The pulverization and oxidation/corrosion of the alloy during cycling are two main factors responsible for the fast degradation of the electrode. It was found that a passive Ti oxide film formed on the alloy surface, leading to an increase in charge transfer resistance on the alloy surface and a decrease in exchange current density I0.",

keywords = "Degradation mechanisms, Electrochemical reactions, Electrode materials, Hydrogen absorbing materials, X-ray diffraction",

author = "Yunfeng Zhu and Hongge Pan and Mingxia Gao and Yongfeng Liu and Rui Li and Yongquan Lei and Qidong Wang",

year = "2004",

month = mar,

doi = "10.1016/S0360-3199(03)00153-8",

language = "英语",

volume = "29",

pages = "313--318",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier Ltd",

number = "3",

}

TY - JOUR

T1 - Degradation mechanisms of Ti-V-based multiphase hydrogen storage alloy electrode

AU - Zhu, Yunfeng

AU - Pan, Hongge

AU - Gao, Mingxia

AU - Liu, Yongfeng

AU - Li, Rui

AU - Lei, Yongquan

AU - Wang, Qidong

PY - 2004/3

Y1 - 2004/3

N2 - The degradation mechanisms of the Ti-V-based multiphase hydrogen storage electrode alloy (Ti0.8Zr0.2)(V0.533Mn 0.107Cr0.16Ni0.2)2 during electrochemical cycling in alkaline electrolyte have been studied systematically by using XRD, SEM, XPS, AES and EIS measurements. The results show that the irreversible hydrogen absorbed in the alloy increases with cycling. The pulverization and oxidation/corrosion of the alloy during cycling are two main factors responsible for the fast degradation of the electrode. It was found that a passive Ti oxide film formed on the alloy surface, leading to an increase in charge transfer resistance on the alloy surface and a decrease in exchange current density I0.

AB - The degradation mechanisms of the Ti-V-based multiphase hydrogen storage electrode alloy (Ti0.8Zr0.2)(V0.533Mn 0.107Cr0.16Ni0.2)2 during electrochemical cycling in alkaline electrolyte have been studied systematically by using XRD, SEM, XPS, AES and EIS measurements. The results show that the irreversible hydrogen absorbed in the alloy increases with cycling. The pulverization and oxidation/corrosion of the alloy during cycling are two main factors responsible for the fast degradation of the electrode. It was found that a passive Ti oxide film formed on the alloy surface, leading to an increase in charge transfer resistance on the alloy surface and a decrease in exchange current density I0.

KW - Degradation mechanisms

KW - Electrochemical reactions

KW - Electrode materials

KW - Hydrogen absorbing materials

KW - X-ray diffraction

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U2 - 10.1016/S0360-3199(03)00153-8

DO - 10.1016/S0360-3199(03)00153-8

M3 - 文章

AN - SCOPUS:0345327606

SN - 0360-3199

VL - 29

SP - 313

EP - 318

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 3

ER -

Degradation mechanisms of Ti-V-based multiphase hydrogen storage alloy electrode

Abstract

Keywords

UN SDGs

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