GAS DIFFUSION ELECTRODE MATERIAL, PROCESS FOR PRODUCING THE SAME, AND PROCESS FOR PRODUCING GAS DIFFUSION ELECTRODE

摘要

A reaction layer material for gas diffusion electrodes which is obtained by mixing an aqueous solution containing a surfactant and fine hydrophilic particles and hydrophobic carbon black both dispersed therein with a polytetrafluoroethylene dispersion, adding a binder thereto, and homogenizing the mixture, wherein the average particle diameter rs of the hydrophilic particles, that rc of the carbon black, and that rp of the polytetrafluoroethylene particles contained in the dispersion satisfy the relationships D=rc/rp, 0.5