Abstract
The redox reaction between divalent and trivalent iron species in binary and ternary molten salt systems consisting of 1-ethyl-3-methylimidazolium chloride (EMICl) with iron chlorides, FeCl2 and FeCl3, was investigated as a candidate of the half-cell reactions of novel rechargeable redox batteries based on low temperature molten salt systems. A reversible one-electron redox reaction between divalent and trivalent iron species was observed on a platinum electrode in EMICl-FeCl2-FeCl3 system at 130°C. The voltammetric data indicated that divalent and trivalent iron species were FeCl3- and FeCl4- complex anions, respectively. Combined with another proper redox couple, this molten salt system can be utilized in a rechargeable redox battery on account of its low melting temperature and reversible redox reaction.
Original language | English |
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Pages (from-to) | 327-332 |
Number of pages | 6 |
Journal | Journal of Power Sources |
Volume | 109 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2002 Jul 1 |
Keywords
- 1-Ethyl-3-methylimidazolium
- Iron chloride
- Molten salt
- Redox battery
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment
- Energy Engineering and Power Technology
- Physical and Theoretical Chemistry
- Electrical and Electronic Engineering