Nucleation and Growth of Gold Nanoparticles on a Poly5Aphen-Modified Glassy Carbon Electrode from a Deep Eutectic Solvent

In this work, the mechanism of nucleation and growth gold was studied on surface a glassy carbon electrode (GCE) modified with poly-5-Amino-1-10 phenanthroline (Poly5Aphen), from Au (III) ions, dissolved in deep eutectic solvent (DES). For which, electrochemical techniques such as cyclic voltammetry (VC) chronoamperometry (CA) were used. The analysis results potentiostatic tests showed that GCE/Poly5Aphen fits theoretical model 3D limited by diffusion reduction residual water present (1). addition, current density transients recorded during electrodeposition (GCE/Poly5Aphen), when presented their dimensionless form I 2 / m vs t /t compared models described Scharifker Hills (2), experimental data did not fit progressive or instantaneous models, presenting particularly large deviations for >1.4.