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

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Microscopic examination
Redox reactions
Imaging techniques
Electrochemistry
Gold
Electrodes
Computer simulation

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Electrochemical reactions in subfemtoliter-droplets studied with plasmonics-based electrochemical current microscopy. / Wang, Yixian; Shan, Xiaonan; Cui, Fengjuan; Li, Jinghong; Wang, Shaopeng; Tao, Nongjian.

In: Analytical Chemistry, Vol. 87, No. 1, 06.01.2015, p. 494-498.

Research output: Contribution to journalArticle

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AU - Tao, Nongjian

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