Fig. 2. ECL spectra of COF-LZU1/GCE (A) and a bare GCE (B) test solution containing Ru(bpy)32+ (0.25 μM) and TPrA (1 mM). (C) ECL-potential profiles of COF-LZU1/GCE in a mixed solution containing Ru(bpy)32+ (0.25 μM) and TPrA (1 mM) (a), and a GCE in Ru(bpy)32+ solution (0.25 μM) (b). The inset of (C) shows the CVs of a bare GCE (c) and COF-LZU1/GCE (d) in TPrA solution (5 mM). (D) A schematic illustration of the electrochemical oxidation of TPrA with (a) and without (b) COF-LZU1 in the diffusion layer.
