Geometric information available from cyclic voltammetry peaks. NLLSRC fitting on ec/ce simulated systems and test on a real system

A general CV peak fitting method based on the NLLSRC algorithm was implemen ted and its capability to provide geometrical shape parameters, correlable to kinetic, thermodynamic and operational quantities; was tested, both on s imulated and real data sets. As in XPS and in DTA/DSC a base line proportio nal to peak area was tested, even if no theoretical support seems to be ava ilable in an electrochemical environment. Using a phoenomenological approac h, the empirical validity of such a simple baseline was noted and a quantit ative procedure based on area measurements was found to be more precise and easier than usual methods.