Study of Hydrogen Diffusion Behavior in Hydrogen Storage Alloy MlNi_(3.75)Co_(0.65) Mn_(0.4) Al_(0.2) with Potential Step Method

Authors

Xian xia YUAN, Shanghai Institute of Meatallurgy, Chinese Academy of Sciencs, Shanghai 200050, China;
Nai xin XU, Shanghai Institute of Meatallurgy, Chinese Academy of Sciencs, Shanghai 200050, China;

Corresponding Author

Xian xia YUAN

Abstract

Potential step method was employed to study the hydrogen diffusion behavior in hydrogen storage alloy MlNi 3.75 Co 0.65 Mn 0.4 Al 0.2 with various depth of discharge(DOD) at ambient temperature and with 50%DOD at various temperatures. It was found that hydrogen diffusion cofficient in the hydrogen storage alloy increaes with the increase in DOD at ambient temperature. and for the alloy with 50%DOD,the hydrogen diffusion coefficient increases with the increase in temperature and the activation energy for hydrogen diffusion in the alloy is 19.87 kJ/mol.

Keywords

Hydrogen storage alloy, Hydrogen diffusion coefficient, Potential step method

DOI Link

https://doi.org/10.61558/2993-074X.1437

Publication Date

2001-11-28

Online Available Date

2001-11-28

Revised Date

2001-11-28

Received Date

2001-11-28

Recommended Citation

Xian xia YUAN, Nai xin XU. Study of Hydrogen Diffusion Behavior in Hydrogen Storage Alloy MlNi_(3.75)Co_(0.65) Mn_(0.4) Al_(0.2) with Potential Step Method[J]. Journal of Electrochemistry, 2001 , 7(4): 445-451.
DOI: 10.61558/2993-074X.1437
Available at: https://jelectrochem.xmu.edu.cn/journal/vol7/iss4/5

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