ConcentrationOverpotential

Category page
Category:OSW9ed7210cc4fa467b822dba12f885bdf4
ConcentrationOverpotential [OSW9ed7210cc4fa467b822dba12f885bdf4]
ID OSW9ed7210cc4fa467b822dba12f885bdf4
UUID 9ed7210c-c4fa-467b-822d-ba12f885bdf4
Label ConcentrationOverpotential
Machine compatible name ConcentrationOverpotential
Statements (outgoing)
Statements (incoming)

Description

The concentration overpotential of an electrode reaction at a given electrode current density (c.d.) is basically the difference in equilibrium potentials across the diffusion layer. More precisely, it is the potential of a reference electrode (of the same electrode reaction as the working electrode ) with the interfacial concentrations which establish themselves at c.d., relative to the potential of a similar reference electrode with the concentrations of the bulk solution. From such a measured potential difference, with c.d. flowing, one needs to subtract the ohmic potential drop prevailing between the two electrodes.

Item
Type(s)/Category(s) EmmoTerm
Term
EmmoTerm
Comment
  • part of the electrode polarization arising from concentration gradients of electrode reactants and products. [en]
Superclass
  • Overpotential
  • Alternative label
  • ConcentrationPolarization [en]
  • MassTransferOverpotential [en]
  • MassTransferPolarization [en]
  • URIhttp://emmo.info/electrochemistry#electrochemistry_9ed7210c_c4fa_467b_822d_ba12f885bdf4
    jsondata
    uuid"9ed7210c-c4fa-467b-822d-ba12f885bdf4"
    name"ConcentrationOverpotential"
    label
    text"ConcentrationOverpotential"
    lang"en"
    description
    text"The concentration overpotential of an electrode reaction at a given electrode current density (c.d.) is basically the difference in equilibrium potentials across the diffusion layer. More precisely, it is the potential of a reference electrode (of the same electrode reaction as the working electrode ) with the interfacial concentrations which establish themselves at c.d., relative to the potential of a similar reference electrode with the concentrations of the bulk solution. From such a measured potential difference, with c.d. flowing, one needs to subtract the ohmic potential drop prevailing between the two electrodes."
    lang"en"
    type
    "Category:OSW57beed5e1294434ba77bb6516e461456"
    uri"http://emmo.info/electrochemistry#electrochemistry_9ed7210c_c4fa_467b_822d_ba12f885bdf4"
    altLabel
    text"ConcentrationPolarization"
    lang"en"
    text"MassTransferOverpotential"
    lang"en"
    text"MassTransferPolarization"
    lang"en"
    comment
    text"part of the electrode polarization arising from concentration gradients of electrode reactants and products."
    lang"en"
    subClassOf
    "http://emmo.info/electrochemistry#electrochemistry_1cd1d777_e67b_47eb_81f1_edac35d9f2c6"

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    The concentration overpotential of an elecThe concentration overpotential of an electrode reaction at a given electrode current density (c.d.) is basically the difference in equilibrium potentials across the diffusion layer. More precisely, it is the potential of a reference electrode (of the same electrode reaction as the working electrode ) with the interfacial concentrations which establish themselves at c.d., relative to the potential of a similar reference electrode with the concentrations of the bulk solution. From such a measured potential difference, with c.d. flowing, one needs to subtract the ohmic potential drop prevailing between the two electrodes.rop prevailing between the two electrodes. +
    ConcentrationOverpotential (en) +
    9ed7210c-c4fa-467b-822d-ba12f885bdf4 +
    Equivalent URI"Equivalent URI" is a type and predefined property provided by Semantic MediaWiki to represent URI/URL values.
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