Electrochemiluminescence of tri(2,2′-bipyridine)ruthenium in aqueous solution on a gold-nanoparticle-modified glassy carbon electrode

The electrochemical behavior of electrochemical deposition of Au nanoparticles onto a glassy carbon electrode (GCE) and its application for the electrocatalytic electrogenerated chemiluminescence (ECL) of Ru(bpy)32+ in an aqueous solution without coreaction are investigated in this report. The modification of GCE by Au nanoparticles results in excellent catalysis of the ECL of Ru(bpy)32+. The effects of various factors, such as potential scan range, the presence of nitrogen and oxygen, and the scan rate on Ru(bpy)32+. ECL peaks, were systematically studied. This article has provided insight into the design of an Au-nanoparticle-modified electrode for ECL, analytical and catalytic applications.