Fuel cell electrode structures containing sulfonated organosilane-based proton conductors

► Ceramic carbon electrode (CCE) for fuel cells prepared from sulfonated organosilane precursors. ► Employed novel spray deposition of partially gelled CCE layer onto gas diffusion layer. ► CCE catalyst layers show very high active areas and high proton conductivity. ► Fuel cell performance comparable to that of Nafion-based fuel cell electrodes.