Comparison of electrocatalytic activity for glucose electrooxidation of gold nanoparticles fabricated by different methods

摘要

In this study, the gold nanoparticles (AuNPs) without carbon support were prepared using the well-known citrate reduction method. The carbon supported AuNPs nano composites were fabricated by two different approaches: chemical adsorption of AuNPs from the prepared citrate stabilized AuNP colloidal solution on the carbon powder surface and one-pot microwave-assisted synthesis. The nano composites were characterized using scanning electron microscopy (SEM) and inductively coupled plasma optical emission spectroscopy (ICP-OES). The electrocatalytic activity of the prepared catalysts was evaluated for the electrooxidation of glucose in an alkaline media using cyclic voltammetry.