The effect of an electrical double layer on the voltammetric performance of nanoscale interdigitated electrodes: A simulation study

Xiaoling Yang, Guigen Zhang

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Finite-element based computational simulation is performed to investigate the effect of an electrical double layer (EDL) on the electrochemical processes of nanometer-scale interdigitated electrodes (nano-IDEs). Results show that the EDL structure will alter the voltammetric current response of nano-IDEs due to the expansion of the diffuse layer into the diffusion layer at the electrode surfaces and the overlap of the electrical fields of the neighboring electrodes. The EDL induced change in the voltammetric current response is more severe for nano-IDEs with a smaller electrode size and gap spacing, and the EDL effect is influenced by the compact layer thickness, the charge valence of the redox species, the electron transfer rate, and the absence of the supporting electrolyte.

Original languageEnglish
Article number465504
JournalNanotechnology
Volume19
Issue number46
DOIs
StatePublished - Nov 19 2008

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry (all)
  • Materials Science (all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'The effect of an electrical double layer on the voltammetric performance of nanoscale interdigitated electrodes: A simulation study'. Together they form a unique fingerprint.

Cite this