Electrochemical Thermoelectric Conversion with Polysulfide as Redox Species

研究成果: ジャーナルへの寄稿記事

抄録

Thermocells convert waste heat to electricity without any pollution; however, the high cost and corrosivity of redox species hinder their commercialization. In this work, a thermocell that utilizes abundant polysulfide as redox species was demonstrated for the first time. 1-Butyl-1-methylpyrrolidinium polysulfide [(P14)2S3] was synthesized, and the redox species were prepared by the addition of sulfur to the (P14)2S3 solution in DMSO. In thermoelectric measurements, the Seebeck coefficient changed from −0.68 to +0.5 mV K−1 through addition of sulfur to the cell. Operando UV/Vis spectroscopy and open-circuit voltage analysis revealed that this effect was attributed to the change in the dominating redox reactions by the addition of sulfur. This result also provides a thermodynamic view on polysulfides electrochemistry, which is of high importance for lithium–sulfur batteries.

元の言語英語
ページ(範囲)4014-4020
ページ数7
ジャーナルChemSusChem
12
発行部数17
DOI
出版物ステータス出版済み - 9 6 2019

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Polysulfides
Sulfur
sulfur
electrochemistry
Seebeck coefficient
Redox reactions
Waste heat
commercialization
Electrochemistry
Open circuit voltage
Dimethyl Sulfoxide
Ultraviolet spectroscopy
electricity
Pollution
Electricity
thermodynamics
spectroscopy
Thermodynamics
pollution
cost

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Chemical Engineering(all)
  • Materials Science(all)
  • Energy(all)

これを引用

Electrochemical Thermoelectric Conversion with Polysulfide as Redox Species. / Liang, Yimin; Hui, Joseph Ka Ho; Yamada, Teppei; Kimizuka, Nobuo.

:: ChemSusChem, 巻 12, 番号 17, 06.09.2019, p. 4014-4020.

研究成果: ジャーナルへの寄稿記事

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