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Biphasic voltammetry of N, N, N ', N '-tetraphenyl-para-phenylenediamine microdroplets, microparticles and microparticle suspensions

Halls, Jonathan E.; Wadhawan, Jay D.

Authors

Jonathan E. Halls



Abstract

The aqueous biphasic voltammetry of the title compound is examined when it is immobilised on an electrode surface either when dissolved in an array of nitrobenzene droplets, in the form of solid microparticles, or when an electrode is immersed into a three-dimensional aqueous suspension of the solid. In each case, a different electrode reaction is observed to occur, even though the supporting electrolyte is unchanged, with either counter ion transfer across a liquid | liquid interface, or with electrochemical dissolution of the solid particles, or a suggested diffusive-type electron hopping between individual redox centres embedded within the solid crystals.

Citation

Halls, J. E., & Wadhawan, J. D. (2011). Biphasic voltammetry of N, N, N ', N '-tetraphenyl-para-phenylenediamine microdroplets, microparticles and microparticle suspensions. Electroanalysis, 23(4), 997-1006. https://doi.org/10.1002/elan.201000633

Journal Article Type Article
Acceptance Date Nov 26, 2010
Online Publication Date Mar 1, 2011
Publication Date 2011-04
Journal ELECTROANALYSIS
Print ISSN 1040-0397
Publisher Wiley
Peer Reviewed Peer Reviewed
Volume 23
Issue 4
Pages 997-1006
DOI https://doi.org/10.1002/elan.201000633
Keywords Immobilised microparticles; Droplet-modified electrodes; Triple phase boundary; Dahms-Ruff diffusion
Public URL https://hull-repository.worktribe.com/output/417996
Publisher URL https://onlinelibrary.wiley.com/doi/abs/10.1002/elan.201000633