Article Micelle‐Assisted Electrodeposition of γ‐MnO2 on Lead Anodes: Structural and Electrochemical Insights

Manickam Minakshi ORCID ; Rob Aughterson ; Parul Sharma ; Anurag Prakash Sunda ORCID ; Katsuhiko Ariga SAMURAI ORCID ; Lok Kumar Shrestha SAMURAI ORCID

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Manickam Minakshi, Rob Aughterson, Parul Sharma, Anurag Prakash Sunda, Katsuhiko Ariga, Lok Kumar Shrestha. Micelle‐Assisted Electrodeposition of γ‐MnO2 on Lead Anodes: Structural and Electrochemical Insights. ChemNanoMat. 2025, 11 (10), e202500270. https://doi.org/10.1002/cnma.202500270

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(abstract)

Electrolysis of MnSO₄ in H₂SO₄ with cationic surfactants (tetradecyltrimethylammonium bromide; TTAB and cetyltrimethylammonium bromide; CTAB) led to the formation of γ-MnO₂ with surfactant intercalation in an amorphous matrix. Unlike conventional self-standing EMD electrodes, which limit scalability, this study presents bulk electrodeposition of EMD powder on a lead (Pb) anode. Surface morphology was significantly altered by surfactant presence, though XRD and DFT analyses confirmed consistent γ-MnO₂ crystallography across samples.

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Keyword: deposition, electrolysis, energy, manganese dioxide, storage, surfactant

Date published: 2025-07-21

Publisher: Wiley

Journal:

  • ChemNanoMat (ISSN: 2199692X) vol. 11 issue. 10 e202500270

Funding:

  • Japan Society for the Promotion of Science JP20H00392, JP23H05459

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1002/cnma.202500270

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Updated at: 2025-10-06 16:30:27 +0900

Published on MDR: 2025-10-06 16:21:50 +0900

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