Electrochemical properties of titanium-based hydrogen storage alloy prepared by solid phase sintering

Meng Yang; Xiangyu Zhao; Yi Ding; Liqun Ma; Xinxin Qu; Yujun Gao

doi:10.1016/j.ijhydene.2009.04.045

Electrochemical properties of titanium-based hydrogen storage alloy prepared by solid phase sintering

Meng Yang, Xiangyu Zhao, Yi Ding, Liqun Ma, Xinxin Qu, Yujun Gao

College of Materials Science and Engineering

Nanjing Tech University

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

14 Scopus citations

Abstract

The structure and electrochemical properties of titanium-based hydrogen storage alloy prepared by solid phase sintering at 1123 K were investigated. The result of X-ray diffraction (XRD) showed that the sintered alloy mainly consists of Ti₂Ni phase coexisting with TiNi, TiNi₃ and Ni phases. The alloy had a maximum discharge capacity of 205 mAh/g at a discharge current density of 60 mA/g and showed a discharge capacity of 146 mAh/g at 150 mA/g. The results of linear polarization (LP) and potential-step measurement presented that the exchange current density and hydrogen diffusion efficient of the alloy were 100 mA/g and 4.2 × 10^-9 cm²/s, respectively. The electrochemical performance of the alloy could be effectively improved by using solid phase sintering.

Original language	English
Pages (from-to)	2717-2721
Number of pages	5
Journal	International Journal of Hydrogen Energy
Volume	35
Issue number	7
DOIs	https://doi.org/10.1016/j.ijhydene.2009.04.045
State	Published - Apr 2010

Keywords

Electrochemical property
Hydrogen storage alloy
Solid phase sintering
Ti-Ni alloy

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10.1016/j.ijhydene.2009.04.045

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title = "Electrochemical properties of titanium-based hydrogen storage alloy prepared by solid phase sintering",

abstract = "The structure and electrochemical properties of titanium-based hydrogen storage alloy prepared by solid phase sintering at 1123 K were investigated. The result of X-ray diffraction (XRD) showed that the sintered alloy mainly consists of Ti2Ni phase coexisting with TiNi, TiNi3 and Ni phases. The alloy had a maximum discharge capacity of 205 mAh/g at a discharge current density of 60 mA/g and showed a discharge capacity of 146 mAh/g at 150 mA/g. The results of linear polarization (LP) and potential-step measurement presented that the exchange current density and hydrogen diffusion efficient of the alloy were 100 mA/g and 4.2 × 10-9 cm2/s, respectively. The electrochemical performance of the alloy could be effectively improved by using solid phase sintering.",

keywords = "Electrochemical property, Hydrogen storage alloy, Solid phase sintering, Ti-Ni alloy",

author = "Meng Yang and Xiangyu Zhao and Yi Ding and Liqun Ma and Xinxin Qu and Yujun Gao",

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TY - JOUR

T1 - Electrochemical properties of titanium-based hydrogen storage alloy prepared by solid phase sintering

AU - Yang, Meng

AU - Zhao, Xiangyu

AU - Ding, Yi

AU - Ma, Liqun

AU - Qu, Xinxin

AU - Gao, Yujun

PY - 2010/4

Y1 - 2010/4

N2 - The structure and electrochemical properties of titanium-based hydrogen storage alloy prepared by solid phase sintering at 1123 K were investigated. The result of X-ray diffraction (XRD) showed that the sintered alloy mainly consists of Ti2Ni phase coexisting with TiNi, TiNi3 and Ni phases. The alloy had a maximum discharge capacity of 205 mAh/g at a discharge current density of 60 mA/g and showed a discharge capacity of 146 mAh/g at 150 mA/g. The results of linear polarization (LP) and potential-step measurement presented that the exchange current density and hydrogen diffusion efficient of the alloy were 100 mA/g and 4.2 × 10-9 cm2/s, respectively. The electrochemical performance of the alloy could be effectively improved by using solid phase sintering.

AB - The structure and electrochemical properties of titanium-based hydrogen storage alloy prepared by solid phase sintering at 1123 K were investigated. The result of X-ray diffraction (XRD) showed that the sintered alloy mainly consists of Ti2Ni phase coexisting with TiNi, TiNi3 and Ni phases. The alloy had a maximum discharge capacity of 205 mAh/g at a discharge current density of 60 mA/g and showed a discharge capacity of 146 mAh/g at 150 mA/g. The results of linear polarization (LP) and potential-step measurement presented that the exchange current density and hydrogen diffusion efficient of the alloy were 100 mA/g and 4.2 × 10-9 cm2/s, respectively. The electrochemical performance of the alloy could be effectively improved by using solid phase sintering.

KW - Electrochemical property

KW - Hydrogen storage alloy

KW - Solid phase sintering

KW - Ti-Ni alloy

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U2 - 10.1016/j.ijhydene.2009.04.045

DO - 10.1016/j.ijhydene.2009.04.045

M3 - 文章

AN - SCOPUS:77951025473

SN - 0360-3199

VL - 35

SP - 2717

EP - 2721

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 7

ER -

Electrochemical properties of titanium-based hydrogen storage alloy prepared by solid phase sintering

Abstract

Keywords

UN SDGs

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