Iron (II/III) perchlorate electrolytes for electrochemically harvesting low-grade thermal energy.

ABSTRACT: Remarkable advances have recently been made in the thermocell array with series or parallel interconnection, however, the output power from the thermocell array is mainly limited by the electrolyte performance of an n-type element. In this work, we investigate iron (II/III) perchlorate electrolytes as a new n-type electrolyte and compared with the ferric/ferrous cyanide electrolyte at its introduction with platinum as the electrodes, which has been the benchmark for thermocells. In comparison, the perchlorate electrolyte (Fe²⁺/Fe³⁺) exhibits a high temperature coefficient of redox potential of +1.76 mV/K, which is complementary to the cyanide electrolyte (Fe(CN)₆^3-/Fe(CN)₆^4-) with the temperature coefficient of -1.42 mV/K. T

SUBMITTER: Kim JH 

PROVIDER: S-EPMC6582052 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature