11 Scopus citations

Abstract

We report on a plasmonics-based electrochemical current imaging of redox reactions in aqueous droplets with diameters varying from a few hundred nanometers (tens of attoliter in volume) to a few micrometers. The imaging technique allows us to obtain cyclic voltammograms of multiple droplets on a gold electrode simultaneously and to examine the local redox reactions within a droplet. The results are supported by numerical simulations. The work demonstrates a new capability of studying electrochemistry in microdroplets, which offers an opportunity to understand electrochemical reactions within a small confined volume.

Original languageEnglish (US)
Pages (from-to)494-498
Number of pages5
JournalAnalytical chemistry
Volume87
Issue number1
DOIs
StatePublished - Jan 6 2015

ASJC Scopus subject areas

  • Analytical Chemistry

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