Table 3 Specific capacitance (CSP) of g-C3N4, GO, g-C3N4@GO, g-C3N4@r-GO (AA) and g-C3N4@r-GO (NaBH4) measured using the CV curve at different scan rates.

From: Graphitic carbon nitride–reduced graphene oxide (g-C3N4@r-GO) nanocomposites for photocatalytic hydrogen production by water splitting and high-performance electrochemical supercapacitors

Scan rate

(mVs− 1)

Specific capacitance (CSP) / F/g

g-C3N4

g-C3N4@GO

GO

g-C3N4@r-GO(AA)

g-C3N4@r-GO(NaBH4)

5

21.02

187.01

203.95

322.77

142.49

10

16.02

107.98

139.56

194.89

94.94

25

12.27

60.37

80.76

100.73

58.40

50

10.88

45.01

55.85

63.88

44.15

75

10.53

40.76

46.57

50.29

38.75

100

10.28

30.82

40.68

35.95

35.81

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