International Journal of Electrochemistry

Research Article

Synthesis of Nitrogen Doped Carbon and Its Enhanced Electrochemical Activity towards Ascorbic Acid Electrooxidation

Table 3

Charge transfer resistance ( ), double layer capacitance ( ), and exchange current ( ) for various NDC electrodes in 0.01 M [Fe(CN)6]3−/4− + 0.1 M KNO3 solution at the open circuit potential. The kinetic parameters have been calculated using the Randles equivalent circuit shown in Figure 8.
Electrode ( ) ( F) (mA cm−2)
Polyaniline———
NDC-1508232.34 × 10−3
NDC-24502402.64 × 10−3
NDC-33175373.70 × 10−3
NDC-43105193.83 × 10−3
GCE2000.071.83 × 10−3