I hoped to understand the idea behind, but units don't work. Capacitance is measured in Farads, [itex]F=\frac C V[/itex] (Coulomb/Volt), which is not what this formula yields. Unless I am making some mistake scan rate is V/s, area is m2, ΔV is V, so we get
[tex]\frac C {\frac V s m^2 V} = \frac {C\times s} {V^2 m^2} = F \frac s {Vm^2}[/tex]
Doesn't make much sense.
Are you sure this integral shoudl yield a charge? Why dν and not dt?