[17p-Z17-1~19] 9.4 Thermoelectric conversion

[17p-Z17-17] Scaling relation between electrochemical Seebeck coefficient for Fe²⁺/Fe³⁺ in organic solvent and its viscosity

〇(M2)Dai Inoue¹, Hideharu Niwa^1,2,3, Hiroaki Nitani⁴, Yutaka Moritomo^1,2,3 (1.Grad. Sch. Pre and Appl. Sci., Tsukuba Univ., 2.Fac. Pre and Appl. Sci., Tsukuba Univ, 3.Tsukuba Univ., TREMS, 4.KEK)

Keywords:energy-harvesting, thermogalvanic cell

Electrochemical Seebeck coefficient is a key parameter for themal energy harvesting. We systematically investigated α for Fe²⁺/Fe³⁺ in 16 organic solvent, i.e, 8 protic and 8 aprotic solvents. We found that α shows remarkable solvent dependence and a scaling relation between α and viscosity of the solvent as α∝η^-0.4.