Preparation of proton conductive phosphate glass and application to a fuel cell

研究RESULTSThe fuel cell has great possibilities. We use proton conductive glasses as a solidelectrolyte,and developing fuel cell with all solid electrolyte working at the intermediate temperature（150 ~ 400℃）from this point of view. Furthermore，the research and development of这些glasses are performing for the purpose of the application to ahydrogen shade battery and EC devices. In this work， we描述synthesis，conductivity of the glasses，化学完整性和物理性能源材料混合quantity of source materials混合a ball mill for one hour. The mixture was heated in The electric furnace at 600 ~ 800℃，for 30 min. then，thermal product was poured into a mold and cooled from 300℃to room temperature to prepare a glasssamples.这些samples是poured into a melting pot and inserted this in the electric furnace thatsetting was settled and heed . ir spectra indicated that the big absorption was observed in2800cm which was absorption O-H band. The content of mobile proton in glass can calculateidentified from the relation of absorbance and film thickness of this absorption band. the electricconductivity of these samples showed 3.99×10^<-4>S·cm^<-1> and 7.61×10^<-6>S·cm^<-1> at 200℃androom temperature. It is thought that glass of this system has high proton conductivity when compareit with a melt quenching method

RESEARCH RESULTSThe fuel cell has great possibilities. We use proton conductive glasses as a solid electrolyte, and are developing fuel cell with all solid electrolyte working at the intermediate temperature (150〜400℃) from this point of view. Furthermore, the research and development of these glasses are performing for the purpose of the application to a hydrogen shade battery and EC devices. In this work, we describe synthesis, conductivity of the glasses, chemical resistance and physical propertiesPredetermined quantity of source materials were mixed in a ball mill for one hour. The mixture was heated in the electric furnace at 600〜800℃, for 30 min. then, thermal product was poured into a mold and cooled from 300℃ to room temperature to prepare a glass samples. These samples were poured into a melting pot and inserted this in the electric furnace that setting was settled and heated.IR spectra indicated that the big absorption was observed in 2800cm^<-1> which was absorption O-H band. The content of mobile proton in glass can calculate identified from the relation of absorbance and film thickness of this absorption band. The electric conductivity of these samples showed 3.99×10^<-4>S・cm^<-1> and 7.61×10^<-6>S・cm^<-1> at 200℃ and room temperature. It is thought that glass of this system has high proton conductivity when compare it with a melt quenching method.