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Characterizing the MnO 2 dissolution process via EQCM for rechargeable aqueous batteries | Synapse

March 19, 2026Journal of Materials Chemistry A2 citations

Characterizing the MnO 2 dissolution process via EQCM for rechargeable aqueous batteries

MCMinseok ChoiSeoul National University ARAaron ReedSamueli Institute CMCyrus MirsafianSamueli Institute

Key Points

This work aims to clarify how pH affects the dissolution and deposition of MnO2 in aqueous batteries.
Utilized in situ electrochemical quartz crystal microbalance (EQCM) to monitor MnO2 dissolution
Analyzed pH-dependent effects on MnO2 deposition and stability
Observed proton-coupled redox processes influencing behavior
Demonstrated that pH significantly affects MnO2 growth and dissolution
Found that interfacial pH plays a key role in stabilizing MnO2
Revealed the importance of proton-coupled processes in the overall behavior of MnO2

Abstract

This work clarifies the pH-dependent deposition and dissolution of MnO 2 in aqueous electrolytes using in situ EQCM. It shows that proton-coupled redox processes and interfacial pH govern MnO 2 growth, stability, and dissolution behavior.

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Cite This Study

Choi et al. (Thu,) studied this question.

synapsesocial.com/papers/69bb92df496e729e629807c7 https://doi.org/https://doi.org/10.1039/d5ta10427k