1999
DOI: 10.1016/s0376-7388(99)00134-9
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Chronopotentiometry and overlimiting ion transport through monopolar ion exchange membranes

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Cited by 205 publications
(154 citation statements)
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“…(10) However, a non linear behavior appears at small current and high transitions times. In accordance with Krol et al [17] this behavior is due to the imposed current, next to the limit value, does not allow the semi infinite diffusion condition needed to deduce the Sand's equation, so the diffusion layer has a finite size. Even in these conditions a finite layer can be resembled to an infinite layer if several conditions happen involving an upper limit above the transition times, and for a system with forced convention, the concentration in the polarization layers would not change for (2Dτ) However, heterogeneous membranes consist of conducting and not conducting regions.…”
Section: Determination Of the Effective Fraction Of Conducting Regionsupporting
confidence: 59%
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“…(10) However, a non linear behavior appears at small current and high transitions times. In accordance with Krol et al [17] this behavior is due to the imposed current, next to the limit value, does not allow the semi infinite diffusion condition needed to deduce the Sand's equation, so the diffusion layer has a finite size. Even in these conditions a finite layer can be resembled to an infinite layer if several conditions happen involving an upper limit above the transition times, and for a system with forced convention, the concentration in the polarization layers would not change for (2Dτ) However, heterogeneous membranes consist of conducting and not conducting regions.…”
Section: Determination Of the Effective Fraction Of Conducting Regionsupporting
confidence: 59%
“…Table 6 summarizes the results obtained for the layers thickness. In the absence of glucose, they are in the range expected for this kind of systems [17,21,22,26]. For a same electrolyte, the boundary layer thickness is higher at low electrolyte concentration, where polarization effects are more pronounced.…”
Section: Determination Of the Limiting Current For The Membrane Systemmentioning
confidence: 70%
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