Skip to content
6CCVD Research

Diamond Electrodes for High Sensitivity Mercury Detection in the Aquatic Environment - Influence of Surface Preparation and Gold Nanoparticle Activity

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2019-06-12
JournalElectroanalysis
AuthorsMaeve McLaughlin, Alexander C. Pakpourā€Tabrizi, Richard B. Jackman
InstitutionsUniversity College London, London Centre for Nanotechnology
Citations6

Abstract

Section titled ā€œAbstractā€

Abstract This work compares polished and unpolished boron doped diamond (BDD) electrodes decorated with two sizes of gold nanoparticles (AuNPs) for use as robust mercury sensors in aquatic environments. The size of the catalytically active AuNPs on the electrode surfaces was demonstrated to have a less significant effect on the sensitivity for mercury detection than the surface preparation of the BDD. The lowest limits of detection were achieved with the polished BDD electrodes, which both detected mercury at a concentration of 1 pM, six orders of magnitude greater sensitivity than the lowest detection limit of 5 Ī¼M achieved with an unpolished BDD electrode, and high in comparison with other reported electrode systems.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. **** - Guidelines for Drinking-water Quality

Reads Similar to This

A detailed EIS study of boron doped diamond electrodes decorated with gold nanoparticles for high sensitivity mercury detection High-mobility p-channel wide-bandgap transistors based on hydrogen-terminated diamond/hexagonal boron nitride heterostructures High-fidelity control of a nitrogen-vacancy-center spin qubit at room temperature using the sinusoidally modulated, always rotating, and tailored protocol