Ulster University Logo

Investigating the use of endogenous quinoid moieties on carbon fibre as means of developing micro pH sensors

Anderson, A, Phair, J, Benson, J, Meenan, BJ and Davis, J (2014) Investigating the use of endogenous quinoid moieties on carbon fibre as means of developing micro pH sensors. Materials Science and Engineering C, 43 . pp. 533-537. [Journal article]

Full text not available from this repository.

DOI: 10.1016/j.msec.2014.07.038

Abstract

The redox profile obtained from electrochemically oxidised carbon fibre was exploited as a foundation from which to design a reusable pH probe. X-ray photoelectron spectroscopy of the surface after anodisation revealed an increase in the population of endogenous quinone moieties. Square wave voltammograms recorded in various buffer solutions (pH 3–9) yielded a distinct and unambiguous oxidation process through which to ascribe the peak potential — with the latter found to shift in a sub-Nernstian (− 0.052 V/pH) manner. The design of a discrete 2-electrode reusable probe which provides a rapid assessment of pH is described and a preliminary characterisation of the electrochemical performance is critically assessed.

Item Type:Journal article
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:29885
Deposited By: Professor James Davis
Deposited On:13 Aug 2014 11:46
Last Modified:13 Aug 2014 11:46

Repository Staff Only: item control page