A mathematical model and optimization of the structure for porous air electrodes

摘要: Abstract A mathematical model for porous air electrodes is developed to optimize the structure of electrode. The electrode consists two layers; a gas-supplying layer and reaction layer. assumed consist catalytical agglomerates surrounded by hydrophobic zone, which made from same material as It in that these have cylindrical shape. takes into account diffusion oxygen layer, dissolved oxygen, electrochemical reactions taking place, ionic ohmic drop cylinder also electronic due finite conductivity solid material. To calculate polarization curve altogether 13 parameters must be known; four geometrical parameters, six are characteristic three determine experimental conditions. performance calculated different geometries optimum geometry determined. In order simulate real measured. Comparisons been between measured curves.