Numerical Simulation of the Influence of Structural Parameters on the Performance of a Direct Sodium Formate/Sodium Persulfate Microfluidic Fuel Cell

. To assess how these parameters affect the peak power density and limiting current density, a parametric sensitivity analysis is carried out. The sensitivity analysis reveals that the cathode electrode thickness and anode catalyst layer thickness show positive effects, while the electrode length, electrode width, and main channel height impose negative effects on this MFC performance. Among these structural parameters, the influence of the cathode electrode thickness is the most significant, followed by that of the electrode length.