Thermo-electrochemical redox flow cycle for continuous conversion of low-grade waste heat to power.

ABSTRACT: Here we assess the route to convert low grade waste heat (< 100 °C) into electricity by leveraging the temperature dependency of redox potentials, similar to the Seebeck effect in semiconductor physics. We use fluid-based redox-active species, which can be easily heated and cooled using heat exchangers. By using a first principles approach, we designed a redox flow battery system with Fe(CN)₆^3-/Fe(CN)₆^4- and I^-/I₃^- chemistry. We evaluate the continuous operation with one flow cell at high temperature and one at low temperature. We show that the most sensitive parameter, the temperature coefficient of the redox reaction, can be controlled via the redox chemistry, the reaction quotient and solvent additives, and we

SUBMITTER: Bleeker J 

PROVIDER: S-EPMC9107487 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature