摘要
通过共沉淀法制备了Al_(2)O_(3)-CeO_(2)复合材料,并将其作为电解质应用于半导体离子燃料电池(SIFC)。探究了Al_(2)O_(3)、CeO_(2)物质的量之比不同的Al_(2)O_(3)-CeO_(2)复合电解质对SIFC电化学性能的影响。采用X射线衍射(XRD)、X射线光电子能谱(XPS)、扫描电子显微镜(SEM)和透射电子显微镜(TEM)对材料进行了表征。其中,Al_(2)O_(3)、CeO_(2)物质的量之比为1∶0.5的Al_(2)O_(3)-CeO_(2)(1∶0.5)电池获得了最佳性能,在550℃下,开路电压为1.099 V时最大功率密度为1142 mW·cm^(-2)。得益于复合电解质在测试气氛下两相间的界面效应,Al_(2)O_(3)-CeO_(2)(1∶0.5)电池在较低测试温度下取得了优异的混合离子传导和功率输出性能。
Al_(2)O_(3)‑CeO_(2)composite was prepared by coprecipitation method and used as electrolytes in semiconductor ionic fuel cells(SIFCs).We investigated the impact of Al_(2)O_(3)‑CeO_(2)composite electrolyte with different molar ratio of Al_(2)O_(3)and CeO_(2)on the electrochemical performance of fuel cells.The composites were characterized by X‑ray diffraction(XRD),X‑ray photoelectron spectroscopy(XPS),scanning electron microscopy(SEM),and transmission electron microscopy(TEM)techniques.Among the composites,the obtained Al_(2)O_(3)‑CeO_(2)when the molar ratio was 1∶0.5 exhibited the best performance,and its maximum power density was 1142 mW·cm^(-2)when the open‑circuit voltage was 1.099 V at 550℃.Furthermore,the Al_(2)O_(3)‑CeO_(2)cell displayed excellent mixed ionic conduction and power output performance due to the interface effect of the composite material as the fuel cell electrolyte in the test atmosphere.
作者
刘娟
陆玉正
杨静静
王若名
朱斌
云斯宁
LIU Juan;LU Yu‑Zheng;YANG Jing‑Jing;WANG Ruo‑Ming;ZHU Bin;YUN Si‑Ning(Functional Materials Laboratory(FML),School of Materials Science and Engineering,Xi′an University of Architecture and Technology,Xi′an 710055,China;School of Electronic and Engineering,Nanjing Xiaozhuang University,Nanjing 211171,China;Jiangsu Provincial Key Laboratory of Solar Energy Science and Technology,School of Energy and Environment,Southeast University,Nanjing 210096,China)
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2023年第9期1699-1710,共12页
Chinese Journal of Inorganic Chemistry
基金
陕西省自然科学基金重点项目(No.2019JZ-20)
陕西省国家重点研发计划-国际合作重点项目(No.2019KWZ-03)
陕西省重点科技创新团队(No.2022TD-34)资助。
关键词
半导体离子燃料电池
离子传导
界面效应
复合电解质
semiconductor ionic fuel cell
ionic conduction
interface effect
composite electrolyte
作者简介
共同第一作者:刘娟;共同第一作者:陆玉正;通信联系人:云斯宁。E‑mail:yunsining@xauat.edu.cn。
