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

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

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    3 Citations (Scopus)

    Abstract

    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.

    Original languageEnglish
    Title of host publicationECS Transactions
    Pages3-9
    Number of pages7
    Volume35
    Edition21
    DOIs
    Publication statusPublished - 2011
    EventElectrodeposition for Energy Applications 2 - 219th ECS Meeting - Montreal, QC
    Duration: 2011 May 12011 May 6

    Other

    OtherElectrodeposition for Energy Applications 2 - 219th ECS Meeting
    CityMontreal, QC
    Period11/5/111/5/6

    Fingerprint

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

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Arise, I., Homma, T., McLarnon, F. R., & Fukunaka, Y. (2011). Zinc surface morphological variations and ionic mass transfer rates in alkaline solution. In ECS Transactions (21 ed., Vol. 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. Vol. 35 21. ed. 2011. p. 3-9.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Arise, I, Homma, T, McLarnon, FR & Fukunaka, Y 2011, Zinc surface morphological variations and ionic mass transfer rates in alkaline solution. in ECS Transactions. 21 edn, vol. 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. Vol. 35 21. ed. 2011. pp. 3-9
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