Electrochemical behavior of oxygen / superoxide ion couple in 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfone)imide room-temperature molten salt

Yasushi Katayama, Kaori Sekiguchi, Masaki Yamagata, Takashi Miura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The electrochemical behavior of oxygen (O2) superoxide ion (O2) couple was investigated with the aid of ultra micro electrode technique in 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfone)imide room-temperature molten salt. The diffusion coefficient of O2 was (1.8 ± 0.2) × 10-6 cm2 s-1 at 25°C. The activation energy of the diffusion process of O2 was estimated to be 27 kJ mol-1 from the temperature dependence of the diffusion coefficient. The solubility of O2 in BMPTFSI was 14 mmol dm-3 at 25°C and decreased with an increase in temperature. The diffusion coefficient of O2 - was 0.86 × 10 -6 cm2 s-1 at 25°C. The formal potential of O2 O2 - couple was 1.13 V vs. ferrocene / ferrocenium.

Original languageEnglish
Title of host publicationProceedings - Electrochemical Society
Pages503-512
Number of pages10
VolumePV 2004-24
Publication statusPublished - 2006
Event206th ECS Meeting - Honolulu, HI, United States
Duration: 2004 Oct 32004 Oct 8

Other

Other206th ECS Meeting
CountryUnited States
CityHonolulu, HI
Period04/10/304/10/8

Fingerprint

Molten materials
Salts
Oxygen
Ions
Temperature
Solubility
Activation energy
Electrodes

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Katayama, Y., Sekiguchi, K., Yamagata, M., & Miura, T. (2006). Electrochemical behavior of oxygen / superoxide ion couple in 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfone)imide room-temperature molten salt. In Proceedings - Electrochemical Society (Vol. PV 2004-24, pp. 503-512)

Electrochemical behavior of oxygen / superoxide ion couple in 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfone)imide room-temperature molten salt. / Katayama, Yasushi; Sekiguchi, Kaori; Yamagata, Masaki; Miura, Takashi.

Proceedings - Electrochemical Society. Vol. PV 2004-24 2006. p. 503-512.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Katayama, Y, Sekiguchi, K, Yamagata, M & Miura, T 2006, Electrochemical behavior of oxygen / superoxide ion couple in 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfone)imide room-temperature molten salt. in Proceedings - Electrochemical Society. vol. PV 2004-24, pp. 503-512, 206th ECS Meeting, Honolulu, HI, United States, 04/10/3.
Katayama Y, Sekiguchi K, Yamagata M, Miura T. Electrochemical behavior of oxygen / superoxide ion couple in 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfone)imide room-temperature molten salt. In Proceedings - Electrochemical Society. Vol. PV 2004-24. 2006. p. 503-512
Katayama, Yasushi ; Sekiguchi, Kaori ; Yamagata, Masaki ; Miura, Takashi. / Electrochemical behavior of oxygen / superoxide ion couple in 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfone)imide room-temperature molten salt. Proceedings - Electrochemical Society. Vol. PV 2004-24 2006. pp. 503-512
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abstract = "The electrochemical behavior of oxygen (O2) superoxide ion (O2) couple was investigated with the aid of ultra micro electrode technique in 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfone)imide room-temperature molten salt. The diffusion coefficient of O2 was (1.8 ± 0.2) × 10-6 cm2 s-1 at 25°C. The activation energy of the diffusion process of O2 was estimated to be 27 kJ mol-1 from the temperature dependence of the diffusion coefficient. The solubility of O2 in BMPTFSI was 14 mmol dm-3 at 25°C and decreased with an increase in temperature. The diffusion coefficient of O2 - was 0.86 × 10 -6 cm2 s-1 at 25°C. The formal potential of O2 O2 - couple was 1.13 V vs. ferrocene / ferrocenium.",
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AU - Miura, Takashi

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AB - The electrochemical behavior of oxygen (O2) superoxide ion (O2) couple was investigated with the aid of ultra micro electrode technique in 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfone)imide room-temperature molten salt. The diffusion coefficient of O2 was (1.8 ± 0.2) × 10-6 cm2 s-1 at 25°C. The activation energy of the diffusion process of O2 was estimated to be 27 kJ mol-1 from the temperature dependence of the diffusion coefficient. The solubility of O2 in BMPTFSI was 14 mmol dm-3 at 25°C and decreased with an increase in temperature. The diffusion coefficient of O2 - was 0.86 × 10 -6 cm2 s-1 at 25°C. The formal potential of O2 O2 - couple was 1.13 V vs. ferrocene / ferrocenium.

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