Abstract
The electrocatalysis of charge/discharge reactions of alkaline-iron electrodes with and without the Bi2S3 additive have been studied using cyclic voltammetry at different sweep rates and temperatures. The activation energy barriers for the iron-dissolution reaction on the iron electrodes with and without the sulfide additive are found to be 11.5 and 35.5 kJ mol−1, respectively, suggesting that the presence of sulfide additive in iron-active material lowers the activation barrier for the iron dissolution reaction appreciably.
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Ravikumar, M.K., Balasubramanian, T.S., Shukla, A.K. et al. A cyclic voltammetric study on the electrocatalysis of alkaline iron-electrode reactions. J Appl Electrochem 26, 1111–1115 (1996). https://doi.org/10.1007/BF00243735
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DOI: https://doi.org/10.1007/BF00243735