Redox reaction of 2, 2, 6, 6-tetramethylpiperidine-l-oxyI (TEMPO) in lithium bis(trifluoromethylsulfonyl)amide-tetraglyme solvate ionic liquid

Y. Katayama; K. Wada; N. Tachikawa; N. Serizawa

doi:10.1149/08614.0113ecst

Redox reaction of 2, 2, 6, 6-tetramethylpiperidine-l-oxyI (TEMPO) in lithium bis(trifluoromethylsulfonyl)amide-tetraglyme solvate ionic liquid

Y. Katayama, K. Wada, N. Tachikawa, N. Serizawa

Department of Applied Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The redox reaction of 2, 2, 6, 6-tetramethylpiperidine-l-oxyl (TEMPO) has been investigated in a solvate ionic liquid composed of lithium bis(trifluoromethylsulfonyl)amide (LiTFSA) and tetraglyme (G4). The one-electron transfer and quasi-reversible redox reaction of TEMPO+/TEMPO was observed in the stable electrochemical potential window of the solvate ionic liquid. The formal potential of TEMPO'S/TEMPO was 0.19 V vs. Ferrocene/ferrocenium. The diffusion coefficients of TEMPO and TEMPO⁺at 298 K were 1.8 × 10^-7 and 7.6 × 10^-8cm² s^-1, respectively, reflecting the coulombic interaction between the charged species with the anion of the solvate ionic liquid. The standard rate constant for the redox reaction of TEMPO⁺/TEMPO at 298 K was 1.9 × 10^-4 cm s^-1. Charge-discharge of a lithium secondary cell using a lithium-ion conductive glass-ceramics (LICGC) as a diaphragm and [Li(G4)]TFSA containing TEMPO as a catholyte was found to be possible with the average discharge voltage of 3.4 V.

Original language	English
Title of host publication	ECS Transactions
Editors	W. Matthew Reichert, Robert A. Mantz, Paul C. Trulove, Luke M. Haverhals, Elizabeth J. Biddinger, Hugh C. De Long, Alice H. Suroviec, Minoru Mizuhata, Mikito Ueda, Adriana Ispas, Andreas Bund, David P. Durkin
Publisher	Electrochemical Society Inc.
Pages	113-116
Number of pages	4
Edition	14
ISBN (Electronic)	9781607688617
ISBN (Print)	9781510871748
DOIs	https://doi.org/10.1149/08614.0113ecst
Publication status	Published - 2018
Event	Symposium on Molten Salts and Ionic Liquids 21 - AiMES 2018, ECS and SMEQ Joint International Meeting - Cancun, Mexico Duration: 2018 Sept 30 → 2018 Oct 4

Publication series

Name	ECS Transactions
Number	14
Volume	86
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Conference

Conference	Symposium on Molten Salts and Ionic Liquids 21 - AiMES 2018, ECS and SMEQ Joint International Meeting
Country/Territory	Mexico
City	Cancun
Period	18/9/30 → 18/10/4

ASJC Scopus subject areas

Engineering(all)

Access to Document

10.1149/08614.0113ecst

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Katayama, Y., Wada, K., Tachikawa, N., & Serizawa, N. (2018). Redox reaction of 2, 2, 6, 6-tetramethylpiperidine-l-oxyI (TEMPO) in lithium bis(trifluoromethylsulfonyl)amide-tetraglyme solvate ionic liquid. In W. M. Reichert, R. A. Mantz, P. C. Trulove, L. M. Haverhals, E. J. Biddinger, H. C. De Long, A. H. Suroviec, M. Mizuhata, M. Ueda, A. Ispas, A. Bund, & D. P. Durkin (Eds.), ECS Transactions (14 ed., pp. 113-116). (ECS Transactions; Vol. 86, No. 14). Electrochemical Society Inc.. https://doi.org/10.1149/08614.0113ecst

Redox reaction of 2, 2, 6, 6-tetramethylpiperidine-l-oxyI (TEMPO) in lithium bis(trifluoromethylsulfonyl)amide-tetraglyme solvate ionic liquid. / Katayama, Y.; Wada, K.; Tachikawa, N. et al.
ECS Transactions. ed. / W. Matthew Reichert; Robert A. Mantz; Paul C. Trulove; Luke M. Haverhals; Elizabeth J. Biddinger; Hugh C. De Long; Alice H. Suroviec; Minoru Mizuhata; Mikito Ueda; Adriana Ispas; Andreas Bund; David P. Durkin. 14. ed. Electrochemical Society Inc., 2018. p. 113-116 (ECS Transactions; Vol. 86, No. 14).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Katayama, Y, Wada, K, Tachikawa, N & Serizawa, N 2018, Redox reaction of 2, 2, 6, 6-tetramethylpiperidine-l-oxyI (TEMPO) in lithium bis(trifluoromethylsulfonyl)amide-tetraglyme solvate ionic liquid. in WM Reichert, RA Mantz, PC Trulove, LM Haverhals, EJ Biddinger, HC De Long, AH Suroviec, M Mizuhata, M Ueda, A Ispas, A Bund & DP Durkin (eds), ECS Transactions. 14 edn, ECS Transactions, no. 14, vol. 86, Electrochemical Society Inc., pp. 113-116, Symposium on Molten Salts and Ionic Liquids 21 - AiMES 2018, ECS and SMEQ Joint International Meeting, Cancun, Mexico, 18/9/30. https://doi.org/10.1149/08614.0113ecst

Katayama Y, Wada K, Tachikawa N, Serizawa N. Redox reaction of 2, 2, 6, 6-tetramethylpiperidine-l-oxyI (TEMPO) in lithium bis(trifluoromethylsulfonyl)amide-tetraglyme solvate ionic liquid. In Reichert WM, Mantz RA, Trulove PC, Haverhals LM, Biddinger EJ, De Long HC, Suroviec AH, Mizuhata M, Ueda M, Ispas A, Bund A, Durkin DP, editors, ECS Transactions. 14 ed. Electrochemical Society Inc. 2018. p. 113-116. (ECS Transactions; 14). doi: 10.1149/08614.0113ecst

Katayama, Y. ; Wada, K. ; Tachikawa, N. et al. / Redox reaction of 2, 2, 6, 6-tetramethylpiperidine-l-oxyI (TEMPO) in lithium bis(trifluoromethylsulfonyl)amide-tetraglyme solvate ionic liquid. ECS Transactions. editor / W. Matthew Reichert ; Robert A. Mantz ; Paul C. Trulove ; Luke M. Haverhals ; Elizabeth J. Biddinger ; Hugh C. De Long ; Alice H. Suroviec ; Minoru Mizuhata ; Mikito Ueda ; Adriana Ispas ; Andreas Bund ; David P. Durkin. 14. ed. Electrochemical Society Inc., 2018. pp. 113-116 (ECS Transactions; 14).

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abstract = "The redox reaction of 2, 2, 6, 6-tetramethylpiperidine-l-oxyl (TEMPO) has been investigated in a solvate ionic liquid composed of lithium bis(trifluoromethylsulfonyl)amide (LiTFSA) and tetraglyme (G4). The one-electron transfer and quasi-reversible redox reaction of TEMPO+/TEMPO was observed in the stable electrochemical potential window of the solvate ionic liquid. The formal potential of TEMPO'S/TEMPO was 0.19 V vs. Ferrocene/ferrocenium. The diffusion coefficients of TEMPO and TEMPO+at 298 K were 1.8 × 10-7 and 7.6 × 10-8cm2 s-1, respectively, reflecting the coulombic interaction between the charged species with the anion of the solvate ionic liquid. The standard rate constant for the redox reaction of TEMPO+/TEMPO at 298 K was 1.9 × 10-4 cm s-1. Charge-discharge of a lithium secondary cell using a lithium-ion conductive glass-ceramics (LICGC) as a diaphragm and [Li(G4)]TFSA containing TEMPO as a catholyte was found to be possible with the average discharge voltage of 3.4 V.",

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AU - Tachikawa, N.

AU - Serizawa, N.

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N2 - The redox reaction of 2, 2, 6, 6-tetramethylpiperidine-l-oxyl (TEMPO) has been investigated in a solvate ionic liquid composed of lithium bis(trifluoromethylsulfonyl)amide (LiTFSA) and tetraglyme (G4). The one-electron transfer and quasi-reversible redox reaction of TEMPO+/TEMPO was observed in the stable electrochemical potential window of the solvate ionic liquid. The formal potential of TEMPO'S/TEMPO was 0.19 V vs. Ferrocene/ferrocenium. The diffusion coefficients of TEMPO and TEMPO+at 298 K were 1.8 × 10-7 and 7.6 × 10-8cm2 s-1, respectively, reflecting the coulombic interaction between the charged species with the anion of the solvate ionic liquid. The standard rate constant for the redox reaction of TEMPO+/TEMPO at 298 K was 1.9 × 10-4 cm s-1. Charge-discharge of a lithium secondary cell using a lithium-ion conductive glass-ceramics (LICGC) as a diaphragm and [Li(G4)]TFSA containing TEMPO as a catholyte was found to be possible with the average discharge voltage of 3.4 V.

AB - The redox reaction of 2, 2, 6, 6-tetramethylpiperidine-l-oxyl (TEMPO) has been investigated in a solvate ionic liquid composed of lithium bis(trifluoromethylsulfonyl)amide (LiTFSA) and tetraglyme (G4). The one-electron transfer and quasi-reversible redox reaction of TEMPO+/TEMPO was observed in the stable electrochemical potential window of the solvate ionic liquid. The formal potential of TEMPO'S/TEMPO was 0.19 V vs. Ferrocene/ferrocenium. The diffusion coefficients of TEMPO and TEMPO+at 298 K were 1.8 × 10-7 and 7.6 × 10-8cm2 s-1, respectively, reflecting the coulombic interaction between the charged species with the anion of the solvate ionic liquid. The standard rate constant for the redox reaction of TEMPO+/TEMPO at 298 K was 1.9 × 10-4 cm s-1. Charge-discharge of a lithium secondary cell using a lithium-ion conductive glass-ceramics (LICGC) as a diaphragm and [Li(G4)]TFSA containing TEMPO as a catholyte was found to be possible with the average discharge voltage of 3.4 V.

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Redox reaction of 2, 2, 6, 6-tetramethylpiperidine-l-oxyI (TEMPO) in lithium bis(trifluoromethylsulfonyl)amide-tetraglyme solvate ionic liquid

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