Prospects for the application of scanning electrochemical microscopy in ionic liquids

Maurizio Carano, Alan Maxwell Bond

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Prospects have been assessed for the application of the technique of scanning electrochemical microscopy (SECM) in viscous ionic liquids. Use of the Fc(0/+) redox couple (Fc = ferrocene) to obtain microelectrode approach curves revealed that the required steady state behaviour needed for analysis of data relevant to conducting platinum and insulating glass substrates is moderately easy to achieve in a 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM][BF4]) ionic liquid. However, in the more highly viscous 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid, where significantly lower diffusion coefficients are encountered, approach-curve data that conform to steady state theory are only found with very small microelectrodes (e.g.,
Original languageEnglish
Pages (from-to)29 - 34
Number of pages6
JournalAustralian Journal of Chemistry
Issue number1
Publication statusPublished - 2007

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