一种抗CO_2中毒的高电化学性能质子导体电解质  

A High Electrochemical Performance Proton Conductor Electrolyte with CO_2 Tolerance

作　　者：郭友敏[1] 林野[1] 时焕岗[1] 冉然[1] 邵宗平[1] 

机构地区：[1]南京工业大学材料化学工程国家重点实验室,江苏南京210009

出　　处：《催化学报》2009年第6期479-481,共3页

基　　金：国家自然科学基金(20646002;20676061);国家高技术研究发展计划(863计划;2007AA05Z133);国家重点基础研究发展计划(973计划;2007CB209704)

摘　　要：制备了一种高电化学性能的抗CO2中毒的低温质子导体固体氧化物燃料电池电解质BaZr0.4Ce0.4Y0.2O3(BZCY4),并通过双层共压法制备出NiO+BZCY4阳极支撑的单电池.该电池以质子导体材料BZCY4氧化物为电解质,钙钛矿型材料Ba0.5Sr0.5Co0.8Fe0.2O3(BSCF)为阴极,在750和400oC下的功率密度分别为219和57mW/cm2.A low-temperature proton conductor electrolyte with CO2 tolerance that had a smaller drop in performance with decreasing operation temperature was developed. A Ni-anode-supported solid oxide fuel cell （SOFC） comprising a proton-conducting BaZr0.4Ce0.4Y0.2O3（BZCY4） electrolyte and a Ba0.5Sr0.5Co0.8Fe0.2O3（BSCF） perovskite cathode was fabricated. An anode-supported thin-film electrolyte fuel cell was fabricated by the dual dry pressing/sintering process. A peak power density of 219 mW/cm2 was achieved at 750 ℃ while it still was 57 mW/cm^2 at 400 ℃ when operating on humidified H2 fuel using a cell with a 32 μm thick electrolyte.

关 键 词：质子导体 BaZr0.4Ce0.4Y0.2O3 Ba0.5Sr0.5Co0.8Fe0.2O3 固体氧化物燃料电池 

分 类 号：TM911.4[电气工程—电力电子与电力传动]