Table 1. Cyclic Voltammetric Peak Potential Differences, ΔE_p, of 3.2 mM Ferrocene at Graphene and Glassy Carbon Electrodes for a Range of Sweep Rates, ν.

	graphene	glassy carbon
v / V s–1	ΔEp / V	ΔEp / V
0.010	0.145	0.066
0.025	0.186	0.069
0.050	0.226	0.065
0.100	0.275	0.071
0.250	0.365	0.071
0.500	0.446	0.069