Figure 4. Voltammetric responses of (A) 4 nm and (B) 20 nm AuNP-modified ITO electrodes before (black) and after (red) carrying out anodic stripping of the nanoparticles in 0.1 M HCl. All the solutions were deoxygenated by purging with N2 for at least 30 min and the experiments were carried out under N2 atmosphere. Scan rate: 60 mV s-1

From

Tuning the Size of Gold Nanoparticles with Repetitive Oxidation-reduction Cycles

Steve Y. Rhieu, Vytas Reipa

American Journal of Nanomaterials. 2015, 3(1), 15-21 doi:10.12691/ajn-3-1-2