Zhou Y.-G., Rees N.V., Pillay J., Tshikhudo R., Vilakazi S., Compton R.G.
Dept. of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ, United Kingdom; Mintek, 200 Malibongwe Drive, Randburg 2125, South Africa
Zhou, Y.-G., Dept. of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ, United Kingdom; Rees, N.V., Dept. of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ, United Kingdom; Pillay, J., Mintek, 200 Malibongwe Drive, Randburg 2125, South Africa; Tshikhudo, R., Mintek, 200 Malibongwe Drive, Randburg 2125, South Africa; Vilakazi, S., Mintek, 200 Malibongwe Drive, Randburg 2125, South Africa; Compton, R.G., Dept. of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QZ, United Kingdom
Gold nanoparticles (AuNPs) in aqueous 0.10 M HCl are shown to be electroactive at oxidising potentials greater than 1.0 V (vs. Ag/AgCl) by means of voltammetric monitoring of AuNP-electrode collisions. The method promises the use of anodic particle coulometry for the detection and characterisation of the AuNPs.