Laser trapping and electrochemistry of a single oil droplet in water: Electron transfer across the oil-droplet | electrode interface

Kiyoharu Nakatani, Tatsuya Uchida, Hiroaki Misawa, Noboru Kitamura, Hiroshi Masuhara*

*Corresponding author for this work

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

The electrochemistry of ferrocene (FeCp) in a single micrometer-sized nitrobenzene droplet dispersed in water was studied by laser trapping and microelectrochemical techniques. Mass transfer of FeCp, ferrocenium ion, and tetra-n-butylammonium ion between the droplet and water phases accompanied by oxidation of FeCp proceeded across the droplet | water interface. The peak potential of a cyclic voltammogram of FeCp was highly dependent on the potential sweep rate. The potential shift was analyzed by thin-layer electrolysis and the results are discussed in terms of the irreversible electron transfer of FeCp across the droplet | electrode interface and in terms of mass transfer of ion species across the droplet | water interface.

Original languageEnglish
Pages (from-to)109-114
Number of pages6
JournalJournal of Electroanalytical Chemistry
Volume367
Issue number1-2
DOIs
StatePublished - 4 Mar 1994

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