A STRATEGY TO IMPROVE THE ACCURACY OF DIGITAL-SIMULATION FOR ELECTROANALYTICAL CHEMISTRY

A strategy for digital simulation methods was presented for solving pa rtial differential equations, called as IPBFP which is to insert M poi nts before the first time point of the usual way, to decrease simulati on errors. The theoretical analysis and simulation results show that i t can improve the fully implicit method with any dimensionless diffusi on coefficient lambda, Crank-Nicolson method with large lambda and Sau l'yev method with small lambda. The IPBFP is convenient to arrange the simulation time points flexibly and reduce calculation time and error s. This approach can combine the merits of non-uniform time grid and u niform time grid methods in simulation for electrochemical studies.