Fig. 4
From: Porous Carbon Substrate Improving the Sensing Performance of Copper Nanoparticles Toward Glucose
a CV curves of Cu NP@PC, Cu NP/C and pure carbon sample for glucose oxidation reaction; (0.2 mM glucose, 0.1 M KOH, scan rate: 100 mV/s.) b CV curves of Cu NP@PC in 0.1 M KOH at different scan rates (20, 40, 60, 80 mV/s); c Plot of current density at 0.4 V in relation to the square root of scan rate; d The electrochemical impedance spectra of Cu NP@PC and Cu NP/C; and e The schematic diagram of the mechanism process of glucose conversion on the Cu NP@PC