Functional Electro-materials Based on Ferricyanide Redox-active Ionic Liquids

Andrew P. Doherty, Louise Graham, Klaudia Wagner, David L. Officer, Jun Chen, Gordon G. Wallace

Research output: Contribution to journalSpecial issue

4 Citations (Scopus)
246 Downloads (Pure)

Abstract

The unique physical and chemical properties of conventional room temperature ionic liquids (RTILs) render them highly deployable materials in electrochemical devices performing functions such as solvent-free electrolytes in capacitors, batteries and sensors. However, these non-faradaic applications can be complimented by incorporating faradaic redox functionality into the ionic liquid structure which facilitates access to a large array of new electrochemical applications such as dye sensitised solar cells, redox batteries, hydrid capacitors and selective amperometric sensor applications which are all reliant on heterogeneous or homogenous electron-transfer processes. This paper presents and discuses some examples of redox active ionic liquids base on the ferri-/ferro- functionality. These functional electro-materials which are already known [Ref. 18] exhibit simple reversible one-electron electrochemistry at very negative potentials (by at least -1 V relative to aqueous systems) in anhydrous media. Glass transition temperatures lower than -50 oC were also observed along with an overall thermal stability up to at least 400 oC under dry N2 atmosphere conditions. Opportunities and challenges for these types of electro-materials are discussed
Original languageEnglish
Pages (from-to) 934-940
JournalElectrochimica Acta
Early online date07 Jun 2017
DOIs
Publication statusPublished - 10 Aug 2017

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