Graphene: A Rising Star on the Horizon of Materials Science

Table 3

A comparison of various carbon electrode materials for supercapacitors.

Carbon-based material	Specific surface area (m^2 g^−1)	Density (g cm^−3)	Electrical conductivity (S cm^−1)	Cost	Specific capacitance; (F g^−1)
					Aqueous; electrolyte	Organic; electrolyte
Fullerene	1100–1400	1.72	10^−8–10^−14	Medium	—	—
CNTs	120–500	0.6	10^4–10^5	High	50–100	<60
Graphene	2630	>1	10^6	High	100–200	80–110
Graphite	10	2.26	10^4	Low
Activated; carbon	1000–3500	0.4–0.7	0.1–1	Low	<200	<100
Templated porous carbon	500–3000	0.5–1	0.3–10	High	120–350	60–140
Activated carbon fibers	1000–3000	0.3–0.8	5–10	Medium	120–370	80–200
Carbon aerogels	400–1000	0.5–0.7	1–10	Low	100–125	<80