Performance Enhancement of Carbon Nanomaterials for Supercapacitors

Table 5

Graphene as electrode for supercapacitor.

Ref	Material type	Electrolyte	Specific surface area	Specific capacitance	Energy and power density
[54]	Graphene; PTFE binder	KOH (1 V)	705 m^2/g.	135 F/g
		TEABF4/PC (2.7 V)		94 F/g
		TEABF4/AN (2.5 V)		99 F/g
[55]	(EG) exfoliated graphene	1 M H2SO4 (1 V)	925 m^2/g	117 F/g; 12.4 µF/cm^2
		PYR14TFSI (3.5 V)		75 F/g	31.9 Wh/kg
	Nanodiamond	1 M H2SO4 (1 V)	520 m^2/g	35 F/g; 6.7 µF/cm^2
		PYR14TFSI (3.5 V)		40 F/g	17.0 Wh/kg
	Camphor graphene	1 M H2SO4 (1 V)	46 m^2/g	6 F/g
[6]	Graphene sheet by laser irradiation.	1 M H3PO4 (1 V)	1520 m^2/g	3.67 mF/cm^2; 96.5% after 10000 cycles.
		EMIMBF4. (4 V)		276 F/g; 5.02 mF/cm^2
[56]	Graphene; Sphere; Activated.	[EMIM][TFSI]; 3.5 V	3290 m^2/g	174 F/g; 100 F/cm^3	74 Wh/kg, 338 kW/kg
		[BMIM][BF4]/AN		167 F/g; 5.6 Ω
[57]	Pristine graphene	Polymer-gel (PVA-H3PO4) electrolyte		80 µF/cm^2
	Reduced multilayer graphene oxide			247 F/g; 394 µF/cm^2
[58]	Graphene; Water as spacer.	H2SO4 (1 V)	215 F/g		8 wh/kg; 414 KW/kg
		(EMIMBF4) (4 V)		273 F/g	150 Wh/kg and 776 kW/kg
[59]	Graphene sheet thermally reduced in water + IL solution which become gel in the end.; Gel also works as spacer.	EMImBF4 (3 V)		156 F/g	17.5 Wh/kg
[60]	Exfoliation of graphite in aqueous inorganic salt.				11.3 mF/cm^2