Study On The Preparation And Performance Of The H₂S Proton SOFC

Urea combustion method was adopted to prepare BaCeO₃ doped with Zr, proton conductor with perovskite structure.The electrolyte was measured by XRD, TG-DTA, SEM, conductivity test and EMF.The results indicate that BCZY was proton conductor, had perovskite structure.The size distribution was between 10nm to 20nm.In the single fuel cell composed of(Co-Mo)S/BCZY/Ag, the highest OCV, 0.72V and the max power output, 1.55 mW·cm^-2, are obtained.The voltage is enhanced with the elevated temperature and fuel flow rate, between 600℃ to 800℃.The SOFCR obtained the best output with the molar ratio of 2:3.At the same time, the SOFCR was applied to removal H₂S and regenerate sulfur.The results indicate that conversion of H₂S is proportional to temperature (t), current density (i) and time (T) in a certain arrange.The max conversion of H₂S in the experiments was obtained to 71% at the condition of R_H2S=30ml·min^-1, t=800℃ and i=12.0 mA·cm^-2.