Author ORCID Identifier

0000-0002-3835-5689

Document Type

Article

Rights

Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence

Disciplines

1.3 PHYSICAL SCIENCES, 1.4 CHEMICAL SCIENCES, Electrochemistry, Analytical chemistry

Publication Details

Electroanalysis 2020

Abstract

Electrochemical and micro-imaging analysis of a commercial graphite-composite material is presented following electro-oxidation with β-methylumbelliferone. Charge-transfer surface modification was observed for the graphite electrode, presumed to have arisen from adsorbed interfacial umbelliferone moieties. The molecular permeability of the new surface towards a range of similar, yet size-variable (23 Å3–136 Å3) molecular redox probes is discussed. Red-shift fluorescence in confocal microscopy offers further support for the presence of a surface-bound umbelliferone layer. An SEM-platinum profiling technique was used as an imaging tool to map the umbelliferone surface and size-distribution of electroactive sites.

DOI

https://doi.org/10.1002/elan.201900184

Funder

Higher Education Authority

Download
Contact the Author


Included in

Chemistry Commons

Share

COinS