首页|Zircontes/Sulfates Composites: Perfect Combination of High- and Low-Temperature Protonic Conductors
Zircontes/Sulfates Composites: Perfect Combination of High- and Low-Temperature Protonic Conductors
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
Trans Tech Publications Ltd
Two typical classes of proton conductors, zirconates and solid acids (such as CsHSO_4) or related sulfates, are intensively investigated recently. Based on the different proton-conducting mechanisms of zirconates and sulfates, we designed and fabricated Y_2O_3-doped barium zirconate/sulfates composites, aiming to make fall use of the benefits, and eliminate the drawbacks of the two individual materials. The electrical conduction of the composite was studied by electrical and electrochemical methods. Microstructure of the composites was examined by SEM. Electromotive force (EMF) measurements were conducted under fuel cell conditions. The results indicated that small amount of sulfates was introduced at the grain boundaries of BaZr_(0.9)Y_(0.1)O_(2.95). The electrical conductivity of the composites was greatly improved and the total ionic transport numbers of the composites are more than 0.9 at 750℃.
School of Materials Science and Engineering of Tianjin University, Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, Tianjin University, Tianjin 300072, China Research and Development Center, Research Institute of Synthetic Crystals, Beijing 100018, China
School of Materials Science and Engineering of Tianjin University, Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
NETL
NSTL
Trans Tech Publications Ltd
