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Enhanced Thermoelectric Power in Ionic Liquids

Veronika Zinovyeva 1 Sawako Nakamae 2 Marco Bonetti 3 Michel Roger 4
2 SPHYNX - Systèmes Physiques Hors-équilibre, hYdrodynamique, éNergie et compleXes
SPEC - UMR3680 - Service de physique de l'état condensé, IRAMIS - Institut Rayonnement Matière de Saclay
4 GMT - Groupe Modélisation et Théorie
IRAMIS - Institut Rayonnement Matière de Saclay, SPEC - UMR3680 - Service de physique de l'état condensé
Abstract : The thiolate/disulfide organic redox couple (McMT−/BMT), derived from 2-mercapto-5-methyl-1,3,4-thiadiazole (McMT), recently proposed as an alternative to usual inorganic couples in dye-sensitized solar cells, exhibits a remarkable reversibility and stability in a thermogalvanic cell containing a 1-ethyl-3-methyimidazolium tetrafluoroborate/acetonitrile (EMIMBF4/AN) mixture. The thermoelectric power depends strongly on concentrations of both the ionic liquid and the redox couple. It is enhanced by a factor of six at high ionic-liquid concentrations. The control of these parameters can be used to enhance the thermopower and the thermoelectric efficiency of future ionic-liquid thermocells.
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Submitted on : Wednesday, October 19, 2016 - 4:30:58 PM
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Veronika Zinovyeva, Sawako Nakamae, Marco Bonetti, Michel Roger. Enhanced Thermoelectric Power in Ionic Liquids. ChemElectroChem, Weinheim : Wiley-VCH, 2013, 1 (2), pp.426 - 430. ⟨10.1002/celc.201300074⟩. ⟨cea-01384313⟩



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