Status of Biomass Derived Carbon Materials for Supercapacitor Application

Table 5

Specific capacitances and surface area of porous carbon synthesized through salt carbonization of different of different biomasses.

Precursor	Salt	Carbonization temperature	Surface area; (m^2 g^−1)	Specific capacitance (F g^−1)	Current density (A g^−1)	Electrolyte	Reference
Firewood	Na2CO3-K2CO3	850	818	189	0.5	1 M H2SO4	[98]
Chitosan from shells of shrimps	ZnCl2	600	1582	256	0.5	6 M KOH	[99]
Peanut shells	Na2CO3-K2CO3	700		160	1	1 M H2SO4	[100]
Bamboo shells	Na2CO3-K2CO3	850	843	204	1	1 M H2SO4	[101]
Boiled coffee beans	Na2CO3-K2CO3; CaCl2	800; 850	436; 550	161; 93.4	0.5; 0.4	1 M MeEt3NBF4	[102]