AN EXAMINATION OF Cr DOPPED ZnMn2O4 IN NA AQUEOUS SOLUTION OF ZnCl2

17th International Conference on Fundamental and Applied Aspects of Physical Chemistry (Proceedings, Volume II) (2024) [J-04-P, pp. 417-420]

AUTHOR(S) / АУТОР(И): J. Senćanski, N. Nikolić, J. Jovanović, S.Blagojević, M. Pagnacco and I. Stojković Simatović

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DOI: 10.46793/Phys.Chem24II.417S

ABSTRACT / САЖЕТАК:

This study examines the diminishing Jahn-Teller effect on the cathode material ZnCr0.15Mn1.85O4 and its capacity increase when adding 1M Mn(NO3)2 in an aqueous solution of ZnCl2. Following the addition of the 1M Mn(NO3)2, the capacity increased from ~2 mAh g-1 to ~14 mAh g-1 at a polarization rate of 5mV s-1. The addition of Mn(NO3)2 effects the balance of Mn3+ and Mn4+, which diminishes the Jahn Teller effect, thus increasing the capacity of ZnCr0.15Mn1.85O4.

KEYWORDS / КЉУЧНЕ РЕЧИ:

ACKNOWLEDGEMENT / ПРОЈЕКАТ:

This work was supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia (grants no. 451-03-65/2024-03/200146, 451-03-66/2024-03/200051, 451-03- 66/2024-03/200053, 451-03-66/2024-03/200026). M.P. acknowledges the support of the EU: the EIC Pathfinder Challenges 2022 call through the Research Grant 101115149 (project ARTEMIS), as well as the support of the Office of Naval Research Global through the Research Grant N62902- 22-1-2024.).

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