Electrochemical behavior of iron(II) species in a hydrophobic room-temperature molten salt

Masaki Yamagata, Naoki Tachikawa, Yasushi Katayama, Takashi Miura

Research output: Contribution to journalReview article

37 Citations (Scopus)

Abstract

The electrochemical behaviors of divalent iron species were investigated in a room-temperature molten salt (RTMS) consisting of 1-n-butyl-1- methylpyrrolidinium cation (BMP+) and bis(trifluoromethylsulfonyl) imide (TFSI-) anion. The TFSI--salt of Fe(II) was soluble in BMPTFSI at room temperature. The cyclic voltammetric data for the Fe(III)/ Fe(II) processes at 1.1 V vs. Ag/Ag(I) showed quasi-reversible kinetics on a platinum electrode. The diffusion coefficient of Fe(II) determined by chronoamperometric techniques was 9.7 × 10-8 cm2 s-1 at 25°C. After cathodic reduction of Fe(II) at - 2.0 V, furthermore, metallic Fe was electrodeposited on a copper substrate.

Original languageEnglish
Pages (from-to)564-566
Number of pages3
JournalElectrochemistry
Volume73
Issue number8
DOIs
Publication statusPublished - 2005 Aug

Keywords

  • Ionic Liquid
  • Iron
  • Room-temperature Molten Salt

ASJC Scopus subject areas

  • Electrochemistry

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