Thermal membrane potential across anion-exchange membranes in KCl and KIO3 solutions and the transported entropy of ions

Hanaoka, Kokichi; Kiyono, Ryotaro; Tasaka, Masayasu

doi:10.1016/0376-7388(93)85190-8

Cited by 22 publications

(15 citation statements)

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“…Ref. [15]). If the cell resistance could be simultaneously decreased by 60%, by decreasing the distance between the electrodes and using highly conductive membranes, the maximum power would show an increase of approximately three orders of magnitude at 0.10 mol/L.…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies of the thermal membrane potential have considered the effects of the electrolyte and its concentration [10,[13][14][15][16][17], the thermal polarization [18], the mean temperature [19], and the hydrophobicity of the ion-exchange groups [20]. The combination of thermal membrane potential and streaming potential has also been studied [7].…”

Section: Introductionmentioning

confidence: 99%

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Thermal potential of ion-exchange membranes and its application to thermoelectric power generation

Jokinen

Manzanares

Kontturi

et al. 2016

Journal of Membrane Science

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Thermal potential of ion-exchange membranes and its application to thermoelectric power generation

Jokinen

Manzanares

Kontturi

et al. 2016

Journal of Membrane Science

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“…Much notable experimental work on the thermoelectric potential of cation exchange membranes was done by Tasaka and co-workers before the turn of the century [9][10][11][12][13][14]. The authors demonstrated that the measured potential depended on the flow rate in their cell, suggesting effects of the diffusion layers adjacent to the membrane.…”

Section: Introductionmentioning

confidence: 99%

Thermoelectric Power of Ion Exchange Membrane Cells Relevant to Reverse Electrodialysis Plants

2019

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A thermoelectric cell is designed and experiments are carried out in order to measure Seebeck coefficients of ion exchange membranes at different constant concentrations of NaCl in water. The purpose of the investigation is to explore how a temperature gradient may be applied to increase the efficiency of saline power plants, in particular, of the process of reverse electrodialysis (RED). To evaluate measurements and RED applications, we derive an expression for the thermoelectric potential for a cell with a single membrane and for a RED unit cell. The Seebeck coefficient is interpreted in terms of the Peltier heat of the cell, and further expressed in terms of transported entropies. We find the Seebeck coefficient of the cell, after correcting for temperature polarization, by gradually increasing the membrane thickness. The contribution to the Seebeck coefficient from the membrane varied between 1.41 and 0.98 mV/K in FUMASEP FKS-PET-75 cation exchange membranes, and between 0.56 and 0.48 mV/K in FUMASEP FAD-PET-75 anion exchange membranes. The precision in the results is 1%, for NaCl concentrations between 0.03 and 0.60 mol/kg. Measurements on the RED unit cell with water samples taken from realistic fresh-and saltwater sources confirmed that a temperature difference has a significant effect, increasing the emf by 1.3% per kelvin of temperature difference.

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“…Thermal membrane potential P 0 across test anion-exchange membrane Aciplex STA was observed using the improved cell. Moreover, electroosmosis was measured using two -and fourcompartment cells [4]. The difference (s_-s_)be- [4].…”

mentioning

confidence: 99%

“…Moreover, electroosmosis was measured using two -and fourcompartment cells [4]. The difference (s_-s_)be- [4]. The cell is similar to …”

mentioning

confidence: 99%

Thermal membrane potential across test anion-exchange membrane ACIPLEX STA and the transported entropy of counterions.

Hanaoka¹,

Kiyono²,

Tasaka³

et al. 1993

membrane

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Thermal membrane potential across anion-exchange membranes in KCl and KIO3 solutions and the transported entropy of ions

Cited by 22 publications

References 8 publications

Thermal potential of ion-exchange membranes and its application to thermoelectric power generation

Thermal potential of ion-exchange membranes and its application to thermoelectric power generation

Thermoelectric Power of Ion Exchange Membrane Cells Relevant to Reverse Electrodialysis Plants

Thermal membrane potential across test anion-exchange membrane ACIPLEX STA and the transported entropy of counterions.

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