Table 1 Comparison of electrochemical results of activated carbon from various biomass.

From: Effect of porosity enhancing agents on the electrochemical performance of high-energy ultracapacitor electrodes derived from peanut shell waste

Materials

PEA

Electrolyte

Specific current (A g−1)

Specific energy (Wh kg−1)

Specific power (W kg−1)

Ref

Peanut shell

ZnCl2

1 M H2SO4

0.5

10.8

106.9

27

Banana peels

KOH

1 M NaNO3

0.5

18.6

485

36

Soybean Pods

KOH

1 M Na2SO4

0.5

22.28

450

63

Quercus Suber

KHCO3

3 M KNO3

0.5

14

450

35

Quercus Suber

KOH

1 M Na2SO4

0.5

18.6

449.4

64

Pueraria

K2CO3

6 M KOH

0.5

8.46

123

65

Fresh clover stems

KOH

1 M H2SO4

0.5

10.7

125

66

Coconut shell

KOH

PVA-KOH-CB gel electrolyte

0.5

11

325

67

Sawdust

KOH

6 M KOH

0.5

8.4

250

68

Waste bagasse

KOH

1 M Na2SO4

0.5

22.3

220.9

58

White Sugar

KOH

1 M Na2SO4

1

19

750

69

Peanut shell waste

KOH

2.5 M KNO 3

1

25.2

900

This work