Cyclic Voltammetry(循环伏安法)(循环伏安法)Figure 1.8Figure 1.9Figure 1.10Reversible system:The peak current for a reversible couple(at 250C)is given by Randles-Sevcik equation:Where n is the number of electrons,A is the electrode area(in cm2),C is the concentration(in mol/cm3),D is the diffusion coefficient(in cm2/s),and is the scan rate(in V/s).(1.6)(1.7)(1.8)Figure 1.11Q.L.Echegoyen et al,J.Am.Chem.Soc.1992,114,3978Irreversible and Quasi-reversible Systems:(1.9)(1.10)Figure 1.12 不可逆过程电流和电势随扫描速度的变化不可逆过程电