Microelectrochemical techniques for probing kinetics at liquid/liquid interfaces

Si Xuan Guo, Patrick R. Unwin, Anna Whitworth, Jie Zhang

Research output: Contribution to journalReview ArticleResearchpeer-review

5 Citations (Scopus)

Abstract

We provide an overview of recent advances in microelectrochemical approaches to investigate the kinetics of various physicochemical processes that occur at the interface between two immiscible electrolyte solutions (ITIES). To place the advances in context, background material on the structure of the ITIES, derived from both experimental studies and computer simulation, is also provided. The main focus of the article is micro-ITIES techniques, single droplet measurements, microelectrochemical measurements at expanding droplets (MEMED) and scanning electrochemical microscopy (SECM). Recent developments in a combined SECM-Langmuir trough technique for probing diffusion processes across Langmuir monolayers at the water/air (W/A) interface are also highlighted, by considering an organic monolayer at a water surface as a special case of a liquid/liquid interface. 

Original languageEnglish
Pages (from-to)43–166
Number of pages124
JournalProgress in Reaction Kinetics and Mechanism
Volume29
Issue number2
DOIs
Publication statusPublished - 2004
Externally publishedYes

Keywords

  • ITIES
  • Langmuir monolayers
  • Liquid/liquid interface
  • Microelectrochemical measurements at expanding droplets
  • Scanning electrochemical microscopy
  • Ultramicroelectrodes

Cite this

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Microelectrochemical techniques for probing kinetics at liquid/liquid interfaces. / Guo, Si Xuan; Unwin, Patrick R.; Whitworth, Anna; Zhang, Jie.

In: Progress in Reaction Kinetics and Mechanism, Vol. 29, No. 2, 2004, p. 43–166.

Research output: Contribution to journalReview ArticleResearchpeer-review

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AU - Unwin, Patrick R.

AU - Whitworth, Anna

AU - Zhang, Jie

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AB - We provide an overview of recent advances in microelectrochemical approaches to investigate the kinetics of various physicochemical processes that occur at the interface between two immiscible electrolyte solutions (ITIES). To place the advances in context, background material on the structure of the ITIES, derived from both experimental studies and computer simulation, is also provided. The main focus of the article is micro-ITIES techniques, single droplet measurements, microelectrochemical measurements at expanding droplets (MEMED) and scanning electrochemical microscopy (SECM). Recent developments in a combined SECM-Langmuir trough technique for probing diffusion processes across Langmuir monolayers at the water/air (W/A) interface are also highlighted, by considering an organic monolayer at a water surface as a special case of a liquid/liquid interface. 

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