Inversely polarized thermo-electrochemical power generation via the reaction of an organic redox couple on a TiO2/Ti mesh electrode

Hiroto Eguchi; Takashi Kobayashi; Teppei Yamada; David S. Rivera Rocabado; Takayoshi Ishimoto; Miho Yamauchi

doi:10.1038/s41598-021-93269-7

Scientific Reports (Jul 2021)

Inversely polarized thermo-electrochemical power generation via the reaction of an organic redox couple on a TiO2/Ti mesh electrode

Hiroto Eguchi,
Takashi Kobayashi,
Teppei Yamada,
David S. Rivera Rocabado,
Takayoshi Ishimoto,
Miho Yamauchi

Affiliations

Hiroto Eguchi: Department of Chemistry, Graduate School of Science, Kyushu University
Takashi Kobayashi: Division of Applied Chemistry, Graduate School of Engineering, Kyushu University
Teppei Yamada: Division of Applied Chemistry, Graduate School of Engineering, Kyushu University
David S. Rivera Rocabado: Graduate School of Nanobioscience, Yokohama City University
Takayoshi Ishimoto: Graduate School of Nanobioscience, Yokohama City University
Miho Yamauchi: Department of Chemistry, Graduate School of Science, Kyushu University

DOI: https://doi.org/10.1038/s41598-021-93269-7
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 7

Abstract

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Abstract We demonstrate thermo-electrochemical (TEC) conversion using a biocompatible redox couple of lactic acid and pyruvic acid on earth-abundant TiO2. The TEC cell exhibited a positive Seebeck coefficient of 1.40 mV K−1. DFT calculations figured out that the adsorption of intermediate species and protons on TiO2 controls both the redox reaction and current polarity.

Published in Scientific Reports

ISSN: 2045-2322 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Medicine; Science
Website: https://www.nature.com/srep/

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