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

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 an...

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Main Authors:	Hiroto Eguchi, Takashi Kobayashi, Teppei Yamada, David S. Rivera Rocabado, Takayoshi Ishimoto, Miho Yamauchi
Format:	Article
Language:	English
Published:	Nature Publishing Group 2021-07-01
Series:	Scientific Reports
Online Access:	https://doi.org/10.1038/s41598-021-93269-7

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spelling	doaj-a4425f313b144216adfc40e929ff52322021-07-11T11:29:34ZengNature Publishing GroupScientific Reports2045-23222021-07-011111710.1038/s41598-021-93269-7Inversely polarized thermo-electrochemical power generation via the reaction of an organic redox couple on a TiO2/Ti mesh electrodeHiroto Eguchi0Takashi Kobayashi1Teppei Yamada2David S. Rivera Rocabado3Takayoshi Ishimoto4Miho Yamauchi5Department of Chemistry, Graduate School of Science, Kyushu UniversityDivision of Applied Chemistry, Graduate School of Engineering, Kyushu UniversityDivision of Applied Chemistry, Graduate School of Engineering, Kyushu UniversityGraduate School of Nanobioscience, Yokohama City UniversityGraduate School of Nanobioscience, Yokohama City UniversityDepartment of Chemistry, Graduate School of Science, Kyushu UniversityAbstract 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.https://doi.org/10.1038/s41598-021-93269-7
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Hiroto Eguchi Takashi Kobayashi Teppei Yamada David S. Rivera Rocabado Takayoshi Ishimoto Miho Yamauchi
spellingShingle	Hiroto Eguchi Takashi Kobayashi Teppei Yamada David S. Rivera Rocabado Takayoshi Ishimoto Miho Yamauchi Inversely polarized thermo-electrochemical power generation via the reaction of an organic redox couple on a TiO2/Ti mesh electrode Scientific Reports
author_facet	Hiroto Eguchi Takashi Kobayashi Teppei Yamada David S. Rivera Rocabado Takayoshi Ishimoto Miho Yamauchi
author_sort	Hiroto Eguchi
title	Inversely polarized thermo-electrochemical power generation via the reaction of an organic redox couple on a TiO2/Ti mesh electrode
title_short	Inversely polarized thermo-electrochemical power generation via the reaction of an organic redox couple on a TiO2/Ti mesh electrode
title_full	Inversely polarized thermo-electrochemical power generation via the reaction of an organic redox couple on a TiO2/Ti mesh electrode
title_fullStr	Inversely polarized thermo-electrochemical power generation via the reaction of an organic redox couple on a TiO2/Ti mesh electrode
title_full_unstemmed	Inversely polarized thermo-electrochemical power generation via the reaction of an organic redox couple on a TiO2/Ti mesh electrode
title_sort	inversely polarized thermo-electrochemical power generation via the reaction of an organic redox couple on a tio2/ti mesh electrode
publisher	Nature Publishing Group
series	Scientific Reports
issn	2045-2322
publishDate	2021-07-01
description	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.
url	https://doi.org/10.1038/s41598-021-93269-7
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Inversely polarized thermo-electrochemical power generation via the reaction of an organic redox couple on a TiO2/Ti mesh electrode

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