Spectroelectrochemical detection of p-benzoquinone and hydroquinone in an electrochemical microreator with an integrated ATR-IR IRE

P. Führer*, J.J.A. Lozeman, H.L. De Boer, J.G. Bomer, W. Olthuis, M. Odijk

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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Abstract

Cyclic voltammetry (CV) is an established method to study redox reactions, but unfortunately does not offer detailed insights in the (intermediate) products formed. To allow mechanistic studies of electrocatalytic reactions, we have combined a silicon internal reflection element (IRE) for attenuated total reflection infrared (ATR-IR) spectroscopy and an electrochemical microreactor into a single chip. This chip contains boron doped diamond (BDD) electrodes on an insulating layer located 5 μm above the IRE to enable the detection of short lived reaction products. With this 1.3 μL volume spectroelectrochemical chip, the reversible redox pair p-benzoquinone and hydroquinone is manipulated and analyzed successfully.

Original languageEnglish
Title of host publicationMicroTAS 2018
Subtitle of host publication22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences
EditorsFan-Gang Tseng, Gwo-Bin Lee
PublisherThe Chemical and Biological Microsystems Society
Pages2127-2130
Number of pages4
Volume4
ISBN (Electronic)978-1-510-89757-1
ISBN (Print)978-0-578-40530-8
Publication statusPublished - 11 Nov 2018
Event22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2018 - Kaohsiung Exhibition Center, Kaohsiung, Taiwan, Province of China
Duration: 10 Nov 201815 Nov 2018
Conference number: 22
https://cbmsociety.org/conferences/microtas2018/

Conference

Conference22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences, µTAS 2018
Abbreviated titleMicroTAS 2018
CountryTaiwan, Province of China
CityKaohsiung
Period10/11/1815/11/18
Internet address

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Keywords

  • ATR
  • BDD
  • Boron doped diamond
  • CV
  • Cyclic voltammetry
  • Electrocatalysis
  • Internal reflection element
  • IR
  • IRE
  • Microfluidics
  • Quinone
  • Spectroelectrochemistry
  • Spectroscopy

Cite this

Führer, P., Lozeman, J. J. A., De Boer, H. L., Bomer, J. G., Olthuis, W., & Odijk, M. (2018). Spectroelectrochemical detection of p-benzoquinone and hydroquinone in an electrochemical microreator with an integrated ATR-IR IRE. In F-G. Tseng, & G-B. Lee (Eds.), MicroTAS 2018: 22nd International Conference on Miniaturized Systems for Chemistry and Life Sciences (Vol. 4, pp. 2127-2130). The Chemical and Biological Microsystems Society.