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OER/ORR parameters of Fe2+ and Co2+-doped manganese dioxide electrode materials
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DOI：10.1016/j.matpr.2022.05.570.png)
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Abstract
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The system of cationic additives [M(I) = NH4+; M(II) = Co2+, Fe2+] in electrodeposition electrolytes of manganese dioxide was used to directly modify its electrocatalytic activity in oxygen reduction and oxygen evolving reactions (ORR & OER) in 0.3 M KOH. Doped MnO2 products were characterised by AAS, SEM with EDS, XRD, TGA, and FTIR. The correlations of ORR(OER) parameters with the content of dopant ions were established, bifunctionality analysis of obtained doped materials was made. Copyright (C) 2022 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the EastWest Chemistry Conference 2021.
Keywords:
Manganese dioxide
Electrolytic doping
Electrocatalyst
Oxygen reduction reaction
Oxygen evolving reaction
Hollandite
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