Effects of the charge density of the anions of ionic liquids on the electrode kinetics of ruthenium 2,2'-bipyridine complexes

Yasushi Katayama, Y. Toshimitsu, T. Miura

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

Abstract

The electrode reaction of ruthenium 2,2'-bipyridine complexes has been investigated in 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4) ionic liquid. The diffusion of the ruthenium complexes in EMIBF4 was slower than that we have reported in EMITFSA (TFSA- = bis(trifluoromethylsulfonyl)amide), of which the viscosity (36 mPa s) is close to that of EMIBF4 (37 mPa s). The rate constant of the ruthenium redox couple in EMIBF4 was also smaller than that in EMITFSA. It was suggested that the difference in these kinetic parameters in EMIBF4 and EMITFSA is ascribed to the coulombic interaction between the positively charged species and the anions of ionic liquids.

Original languageEnglish
Title of host publicationECS Transactions
Pages87-95
Number of pages9
Volume50
Edition11
DOIs
Publication statusPublished - 2012
Event18th International Symposium on Molten Salts and Ionic Liquids - 222nd ECS Meeting - Honolulu, HI, United States
Duration: 2012 Oct 72012 Oct 12

Other

Other18th International Symposium on Molten Salts and Ionic Liquids - 222nd ECS Meeting
CountryUnited States
CityHonolulu, HI
Period12/10/712/10/12

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Charge density
Ruthenium
Ionic liquids
Negative ions
Electrodes
Kinetics
Amides
Kinetic parameters
Rate constants
Viscosity

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Effects of the charge density of the anions of ionic liquids on the electrode kinetics of ruthenium 2,2'-bipyridine complexes. / Katayama, Yasushi; Toshimitsu, Y.; Miura, T.

ECS Transactions. Vol. 50 11. ed. 2012. p. 87-95.

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

Katayama, Y, Toshimitsu, Y & Miura, T 2012, Effects of the charge density of the anions of ionic liquids on the electrode kinetics of ruthenium 2,2'-bipyridine complexes. in ECS Transactions. 11 edn, vol. 50, pp. 87-95, 18th International Symposium on Molten Salts and Ionic Liquids - 222nd ECS Meeting, Honolulu, HI, United States, 12/10/7. https://doi.org/10.1149/05011.0087ecst
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