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A study on the local potential and current density distribution along a bipolar electrode

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F07%3A00018428" target="_blank" >RIV/60461373:22340/07:00018428 - isvavai.cz</a>

  • Alternative codes found

    RIV/60461373:22310/07:00018208

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    A study on the local potential and current density distribution along a bipolar electrode

  • Original language description

    Potential and current density distributions were modelled and measured for an electrochemical cell with a bipolar electrode. The dimension of the bipolar electrode in the direction of current flow was extended, to enable experimental determination of theelectrode potential and the local current densities at various positions inside the electrolyte and in the electrode body. The experimental results showed that the most active regions of the bipolar electrode are located at the ends of the bipolar electrode facing the terminal electrodes. The equations corresponding to the mathematical model of the experimental cell were solved using the finite volume method and gave very good qualitative agreement with the experimental data. However, some discrepancies between model predictions and experimental data were evident in the active parts of the bipolar electrode and in the variation of the terminal voltage with the total current. This was explained in terms of the active electrolyte cross-s

  • Czech name

    Studie distribuce lokálních potenciálů a proudových hustot podél bipolární elektrody

  • Czech description

    Distribuce potenciálu a proudových hustot byly měřeny a počítány na základě matematického modelu v cele s bipolární elektrodou. Rozměry bipolární elektrody ve směru toku proudu byly úmyslně zvětšeny z důvodu možnosti experimentálně stanovit elektrodový potenciál a lokální hodnoty proudových hustot v závislosti na pozici, a to jak uvnitř elektrolytu, tak i v těle elektrody. Experimentální výsledky ukázaly, že nejaktivnější oblasti bipolární elektrody jsou lokalizovány na koncích nejblíže k terminálním elektrodám. Modelové rovnice byly řešeny metodou konečných objemů. Výsledné řešení se kvalitativně velmi dobře shodovalo s experimenty.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CI - Industrial chemistry and chemical engineering

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA104%2F05%2F0066" target="_blank" >GA104/05/0066: A Study of Electrochemical Generation and Separation of Ferrate(VI)</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2007

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Journal of Applied Electrochemistry

  • ISSN

    0021-891X

  • e-ISSN

  • Volume of the periodical

    37

  • Issue of the periodical within the volume

    11

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    10

  • Pages from-to

    1303-1312

  • UT code for WoS article

  • EID of the result in the Scopus database