Corresponding Author

Xian_xia YUAN


Hydrogen diffusion coefficient in MlNi 3.75 Co 0.65 Mn 0.4 Al 0.2 metal hydride electrode has been determined with transition region of diffusion_controlled impedance.Multiple solutions were obtained at each data point because of the periodic characteristic of some functions used in the calculation,and the maximum difference between the solutions reached several orders of magnitude.On the other hand,the solutions varied for different data points in the transition region of diffusion_controlled impedance of the same experimental plot.It could be concluded that this method is not so well defined and some modification is required.


Metal hydride electrode, Hydrogen diffusion coefficient, Electrochemical impedance

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