Table 1. Active Electrode Materials Prepared with Different Proportions of the CrOOH and rGO Composite for Coin Cell Supercapacitor Device Fabrication.

		proportion
		60% active material		40% binder and AC
samples	mass loading (mg cm–2)	CrOOH (%)	rGO (%)	AC (%)	PMMA (%)
S0	1.82	0	100	75	25
S30	0.80	30	70	75	25
S50	1.09	50	50	75	25
S70	1.42	70	30	75	25
S80	0.96	80	20	75	25
S100	1.62	100	0	75	25