[12p-PA4-1~20] 9.4 Thermoelectric conversion

[12p-PA4-14] organic solvent effect on electrochemical Seebeck coefficient of [Fe(CN)₆]^4-/[Fe(CN)₆]^3-

〇(M1)Dai Inoue¹, Yuya Fukuzumi¹, Yutaka Moritomo^2,3 (1.Grad. Sch. Pre and Appl. Sci., Tsukuba Univ., 2.Fac. Pre and Appl. Sci., Tsukuba Univ., 3.Tsukuba Univ. ,TREMS)

Keywords:energy-harvesting

A thermocell with use of the electrochemical Seebeck coefficient (α = dE/dT; E and T are the redox potential and temperature, respectively.) is a promising energy harvesting device. α is the key parameter that governs the thermal efficiency η of the thrmocell. We systematically investigated the variation (Δα) in α of a redox couple of [Fe(CN)₆]^4-/[Fe(CN)₆]^3- in water, by adding 9 percent organic solvent in molar ratio. We found that Δα of 11 organic solvents well scales to the molar volume.