Figure 10.

(a) Transmission electron microscopy (TEM) image of Cu₂O/CuO–reduced graphene oxide (Cu₂O/CuO@rGO) composite after thermal treatment at 600 °C, (b) oxidation mechanism of Cu₂O and CuO with hydrogen peroxide (H₂O₂), and (c) cyclic voltammetry curves of the glassy carbon electrode (GCE) modified with Cu–metal organic frameworks (Cu-MOFs) in the absence (dotted line) and presence (solid line) of 2 mM H₂O₂ (Reprinted with permission from [194] Copyright (2016) Royal Society of Chemistry).