Scan rate

(V/s)

Peak current density (mA/mg)

D

(Vs. Ag/AgCl)

(V)

(Vs. SHE)

0.01

0.10

2.06

4.65 × 10−8

−1.060

−0.806

0.02

0.14

2.39

3.13 × 10−8

−1.129

−0.816

0.03

0.17

2.93

3.14 × 10−8

−1.295

−0.855

0.04

0.20

3.47

3.30 × 10−8

−1.285

−0.865