Zinc surface morphological variations and ionic mass transfer rates in alkaline solution

I. Arise, Takayuki Homma, F. R. McLarnon, Y. Fukunaka

    研究成果: Conference contribution

    3 引用 (Scopus)

    抄録

    A horizontal upward-facing Zn anode was electrochemically dissolved in aqueous alkaline electrolyte. A plane-parallel upward-facing Ni(OH) 2/NiOOH cathode was combined with this Zn anode in a single cell, divided by a polymer separator. This configuration can be considered as a model single pore inside the mesoporous space of a Zn-NiOOH battery cell. It also insures that ionic mass transfer by diffusion and migration is dominant over that by natural convection. The morphological variations of the Zn anode surface plane were examined during the discharge operation of the Zn-NiOOH model cell. The two-dimensional transient concentration profiles of each ion accompanying the electrochemical dissolution of Zn anode in the alkaline electrolyte were numerically calculated. The surface morphological variations of the Zn anode were discussed with the aid of numerical simulation. ZnO precipitation on the Zn anode surface was confirmed to be dependent on the horizontal distance from the cell separator. The numerical model provides insight to the analysis of observed morphological variations along the anode surface.

    元の言語English
    ホスト出版物のタイトルECS Transactions
    ページ3-9
    ページ数7
    35
    エディション21
    DOI
    出版物ステータスPublished - 2011
    イベントElectrodeposition for Energy Applications 2 - 219th ECS Meeting - Montreal, QC
    継続期間: 2011 5 12011 5 6

    Other

    OtherElectrodeposition for Energy Applications 2 - 219th ECS Meeting
    Montreal, QC
    期間11/5/111/5/6

    Fingerprint

    Anodes
    Zinc
    Mass transfer
    Separators
    Electrolytes
    Natural convection
    Numerical models
    Dissolution
    Cathodes
    Computer simulation
    Ions
    Polymers

    ASJC Scopus subject areas

    • Engineering(all)

    これを引用

    Arise, I., Homma, T., McLarnon, F. R., & Fukunaka, Y. (2011). Zinc surface morphological variations and ionic mass transfer rates in alkaline solution. : ECS Transactions (21 版, 巻 35, pp. 3-9) https://doi.org/10.1149/1.3641459

    Zinc surface morphological variations and ionic mass transfer rates in alkaline solution. / Arise, I.; Homma, Takayuki; McLarnon, F. R.; Fukunaka, Y.

    ECS Transactions. 巻 35 21. 編 2011. p. 3-9.

    研究成果: Conference contribution

    Arise, I, Homma, T, McLarnon, FR & Fukunaka, Y 2011, Zinc surface morphological variations and ionic mass transfer rates in alkaline solution. : ECS Transactions. 21 Edn, 巻. 35, pp. 3-9, Electrodeposition for Energy Applications 2 - 219th ECS Meeting, Montreal, QC, 11/5/1. https://doi.org/10.1149/1.3641459
    Arise, I. ; Homma, Takayuki ; McLarnon, F. R. ; Fukunaka, Y. / Zinc surface morphological variations and ionic mass transfer rates in alkaline solution. ECS Transactions. 巻 35 21. 版 2011. pp. 3-9
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