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

Y. 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 publicationMolten Salts and Ionic Liquids 18
Pages87-95
Number of pages9
Edition11
DOIs
Publication statusPublished - 2012 Dec 1
Event18th International Symposium on Molten Salts and Ionic Liquids - 222nd ECS Meeting - Honolulu, HI, United States
Duration: 2012 Oct 72012 Oct 12

Publication series

NameECS Transactions
Number11
Volume50
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

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

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    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 Molten Salts and Ionic Liquids 18 (11 ed., pp. 87-95). (ECS Transactions; Vol. 50, No. 11). https://doi.org/10.1149/05011.0087ecst