Study of adsorbed Ru(bpy)(2+)(3) on glassy carbon electrode and its electrochemiluminescence

Abstract

The adsorption of Ru(bpy)(3)(2+) on a glass carbon electrode has been investigated by cyclic voltammetry (CV) and electrochemiluminescence (ECL). Experimental results show that the adsorption of Ru(bpy)(3)(2+) on the surface of glass carbon electrode was obviously affected by the concentration of Ru(bpy)(3)(2+) and immersion time. The luminescent intensity decreases in the repetitive CV scan caused by the divorce of the oxidation product, Ru(bpy)(3)(3+), which made a great intensity change in the initiatory of ECL measurement.