Abstract
We have studied the electrochemical properties of electrodes based on the intermetallic TiNi, obtained by powder metallurgy, with an austenite and martensite structure. The electrochemical and capacity characteristics of the electrodes were determined from the charging curve under nonequilibrium conditions, and also from the cyclic voltammetric curve in alkaline medium. We have studied the structural and phase changes during absorption - desorption of hydrogen and the effect of the structure on activation and the hydrogen sorption capacity. We have shown that electrodes made from titanium nickelide with a two-phase structure (austenite, martensite) are easily activated and have a higher hydrogen capacity than electrodes with a single-phase austenite structure.
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Translated from Poroshkovaya Metallurgiya, Nos. 7–8(444), pp. 99–106, July–August, 2005.
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Shcherbakova, L.G., Solonin, S.M., Kolomiets, L.L. et al. Effect of Phase Composition and Activation of a Titanium Nickelide Surface by Electrochemical Cycling on Its Hydrogen Sorption Capacity. Powder Metall Met Ceram 44, 389–395 (2005). https://doi.org/10.1007/s11106-005-0108-0
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DOI: https://doi.org/10.1007/s11106-005-0108-0