Ionic liquids at electrified interfaces

Maxim Fedorov, Alexei A. Kornyshev

Research output: Contribution to journalArticle

628 Citations (Scopus)
257 Downloads (Pure)

Abstract

Until recently, “room-temperature” (<100–150 °C) liquid-state electrochemistry was mostly electrochemistry of diluted electrolytes(1)–(4) where dissolved salt ions were surrounded by a considerable amount of solvent molecules. Highly concentrated liquid electrolytes were mostly considered in the narrow (albeit important) niche of high-temperature electrochemistry of molten inorganic salts(5-9) and in the even narrower niche of “first-generation” room temperature ionic liquids, RTILs (such as chloro-aluminates and alkylammonium nitrates).(10-14) The situation has changed dramatically in the 2000s after the discovery of new moisture- and temperature-stable RTILs.(15, 16) These days, the “later generation” RTILs attracted wide attention within the electrochemical community.(17-31) Indeed, RTILs, as a class of compounds, possess a unique combination of properties (high charge density, electrochemical stability, low/negligible volatility, tunable polarity, etc.) that make them very attractive substances from fundamental and application points of view.(32-38) Most importantly, they can mix with each other in “cocktails” of one’s choice to acquire the desired properties (e.g., wider temperature range of the liquid phase(39, 40)) and can serve as almost “universal” solvents.(37, 41, 42) It is worth noting here one of the advantages of RTILs as compared to their high-temperature molten salt (HTMS)(43) “sister-systems”.(44) In RTILs the dissolved molecules are not imbedded in a harsh high temperature environment which could be destructive for many classes of fragile (organic) molecules.
Original languageEnglish
Pages (from-to)2978-3036
Number of pages59
JournalChemical Reviews
Volume114
Issue number5
DOIs
Publication statusPublished - 4 Mar 2014

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Ionic Liquids
electrochemistry
liquids
electrolytes
aluminates
Electrochemistry
salts
high temperature environments
molecules
volatility
molten salts
room temperature
Salts
moisture
Temperature
nitrates
polarity
liquid phases
Electrolytes
Molecules

Keywords

  • ionic liquids
  • electrified interfaces
  • quantum electrochemistry

Cite this

Fedorov, Maxim ; Kornyshev, Alexei A. / Ionic liquids at electrified interfaces. In: Chemical Reviews. 2014 ; Vol. 114, No. 5. pp. 2978-3036.
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Ionic liquids at electrified interfaces. / Fedorov, Maxim; Kornyshev, Alexei A.

In: Chemical Reviews, Vol. 114, No. 5, 04.03.2014, p. 2978-3036.

Research output: Contribution to journalArticle

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