Electrochemical behavior of tris (2,2'-bipyridine) cobalt complex in some ionic liquids

Y. Katayama, S. Nakayama, N. Tachikawa, Kazuki Yoshii

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

2 Citations (Scopus)


The electrode reaction of tris(2,2'-bipyridine)cobalt complex, [Co(bpy)3]3+/2+, has been investigated in 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide (BMPTFSA) and 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIBF4). Diffusion of [Co(bpy)3]2+ and [Co(bpy)3]3+ was affected by the viscosity and the charge densities of the complex and the anion of ionic liquid. The large change of the electron configurations of [Co(bpy)3]2+ and [Co(bpy)3]3+ is considered to cause the slow charge transfer and large reaction entropy change.

Original languageEnglish
Title of host publicationMolten Salts and Ionic Liquids 20
EditorsL. M. Haverhals, R. A. Mantz, P. C. Trulove, M. Ueda, M. Carter, E. J. Biddinger, A. H. Suroviec, M. Reichert, F. Endres, A. Bund, A. Ispas, D. M. Fox, H. C. De Long
PublisherElectrochemical Society Inc.
Number of pages9
ISBN (Electronic)9781607687320, 9781607687672, 9781607687689, 9781607687696, 9781607687702, 9781607687719, 9781607687726, 9781607687733, 9781607687740, 9781607687757, 9781607687771, 9781607687788, 9781607687795, 9781607687801, 9781607687818, 9781607687825, 9781607687832, 9781607687849, 9781607687856, 9781607687863, 9781607687887, 9781607687894, 9781607687900, 9781607687917, 9781607687924, 9781607687931, 9781607687948, 9781607687955, 9781607687962, 9781607687979, 9781607687986, 9781607687993, 9781607688006, 9781607688013, 9781607688020, 9781607688037
Publication statusPublished - 2016
EventSymposium on Molten Salts and Ionic Liquids 20 - PRiME 2016/230th ECS Meeting - Honolulu, United States
Duration: 2016 Oct 22016 Oct 7

Publication series

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


OtherSymposium on Molten Salts and Ionic Liquids 20 - PRiME 2016/230th ECS Meeting
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Engineering(all)


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