A liquid thermoelectric conversion device(LTE)converts environmental heat into electric power via the electrochemical Seebeck coefficientα.The maximum power(W_(max))is expressed as W_(max)=(α^(2)Δ^(T)/(4R′),where...A liquid thermoelectric conversion device(LTE)converts environmental heat into electric power via the electrochemical Seebeck coefficientα.The maximum power(W_(max))is expressed as W_(max)=(α^(2)Δ^(T)/(4R′),whereΔT and R′are the temperature difference between electrodes and device resistance in operation,respectively.Here,we systematically investigated the resistance components of LTEs composed of aqueous,methanol(MeOH)and acetone solutions containing 0.8 M Fe(ClO_(4))_(2)/Fe(ClO_(4))_(3).We found that the charge transfer resistance Rct of the MeOH LTE is the smallest among the three LTEs.We demonstrated that the W_(max)of the MeOH LTE is slightly larger than or comparable with that of the corresponding aqueous LTE.We further discussed the effects of the convection of an electrolyte on R′.展开更多
基金supported by the Yazaki Memorial Foundation for Science and Technology,the Iwatani Naoji Foundation,and the joint research with Taisei Rotec Corporation.
文摘A liquid thermoelectric conversion device(LTE)converts environmental heat into electric power via the electrochemical Seebeck coefficientα.The maximum power(W_(max))is expressed as W_(max)=(α^(2)Δ^(T)/(4R′),whereΔT and R′are the temperature difference between electrodes and device resistance in operation,respectively.Here,we systematically investigated the resistance components of LTEs composed of aqueous,methanol(MeOH)and acetone solutions containing 0.8 M Fe(ClO_(4))_(2)/Fe(ClO_(4))_(3).We found that the charge transfer resistance Rct of the MeOH LTE is the smallest among the three LTEs.We demonstrated that the W_(max)of the MeOH LTE is slightly larger than or comparable with that of the corresponding aqueous LTE.We further discussed the effects of the convection of an electrolyte on R′.
