Anomalous Potential Shifts of Redox-active Molecules in Highly Concentrated Electrolytes

Kan Hatakeyama-Sato; Satoshi Matsumoto; Ikuma Aida; Kenichi Oyaizu

doi:10.1246/cl.210124

Anomalous Potential Shifts of Redox-active Molecules in Highly Concentrated Electrolytes

Kan Hatakeyama-Sato^*, Satoshi Matsumoto, Ikuma Aida, Kenichi Oyaizu

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Redox potentials of various redox-active molecules were examined in highly concentrated electrolytes. At the high concentration regions, the shifts were significantly larger than the conventional trend («0.059 V/dec) expected from the salt concentration terms in the Nernst equation. Decreased activity of the molecular salts was considered to explain the shift. The dramatic potential changes will play essential roles in designing molecule-based energy devices.

Original language	English
Pages (from-to)	1375-1377
Number of pages	3
Journal	Chemistry Letters
Volume	50
Issue number	7
DOIs	https://doi.org/10.1246/cl.210124
Publication status	Published - 2021 Jul

Keywords

Organic battery
Organic redox-active materials
Redox potential

ASJC Scopus subject areas

Chemistry(all)

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10.1246/cl.210124

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title = "Anomalous Potential Shifts of Redox-active Molecules in Highly Concentrated Electrolytes",

abstract = "Redox potentials of various redox-active molecules were examined in highly concentrated electrolytes. At the high concentration regions, the shifts were significantly larger than the conventional trend («0.059 V/dec) expected from the salt concentration terms in the Nernst equation. Decreased activity of the molecular salts was considered to explain the shift. The dramatic potential changes will play essential roles in designing molecule-based energy devices.",

keywords = "Organic battery, Organic redox-active materials, Redox potential",

author = "Kan Hatakeyama-Sato and Satoshi Matsumoto and Ikuma Aida and Kenichi Oyaizu",

note = "Funding Information: This work was partially supported by Grants-in-Aid for Scientific Research (Nos. 17H03072, 18K19120, 18H05515, 20H05298, 21H02017, and 19K15638) from MEXT, Japan. The work was also partially supported by the Research Institute for Science and Engineering, Waseda University. Publisher Copyright: {\textcopyright} 2021 The Chemical Society of Japan",

year = "2021",

month = jul,

doi = "10.1246/cl.210124",

language = "English",

volume = "50",

pages = "1375--1377",

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T1 - Anomalous Potential Shifts of Redox-active Molecules in Highly Concentrated Electrolytes

AU - Hatakeyama-Sato, Kan

AU - Matsumoto, Satoshi

AU - Aida, Ikuma

AU - Oyaizu, Kenichi

N1 - Funding Information: This work was partially supported by Grants-in-Aid for Scientific Research (Nos. 17H03072, 18K19120, 18H05515, 20H05298, 21H02017, and 19K15638) from MEXT, Japan. The work was also partially supported by the Research Institute for Science and Engineering, Waseda University. Publisher Copyright: © 2021 The Chemical Society of Japan

PY - 2021/7

Y1 - 2021/7

N2 - Redox potentials of various redox-active molecules were examined in highly concentrated electrolytes. At the high concentration regions, the shifts were significantly larger than the conventional trend («0.059 V/dec) expected from the salt concentration terms in the Nernst equation. Decreased activity of the molecular salts was considered to explain the shift. The dramatic potential changes will play essential roles in designing molecule-based energy devices.

AB - Redox potentials of various redox-active molecules were examined in highly concentrated electrolytes. At the high concentration regions, the shifts were significantly larger than the conventional trend («0.059 V/dec) expected from the salt concentration terms in the Nernst equation. Decreased activity of the molecular salts was considered to explain the shift. The dramatic potential changes will play essential roles in designing molecule-based energy devices.

KW - Organic battery

KW - Organic redox-active materials

KW - Redox potential

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JO - Chemistry Letters

JF - Chemistry Letters

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ER -

Anomalous Potential Shifts of Redox-active Molecules in Highly Concentrated Electrolytes

Abstract

Keywords

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