Al_(2)O_(3)-CeO_(2)复合电解质的制备及其半导体离子燃料电池性能  

Al_(2)O_(3)‑CeO_(2)composite electrolyte:Preparation and performance of semiconductor ionic fuel cell

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)

机构地区：[1]西安建筑科技大学材料科学与工程学院,功能材料研究所,西安710055 [2]南京晓庄学院电子工程学院,南京211171 [3]东南大学能源与环境学院,江苏省太阳能技术重点实验室,南京210096

出　　处：《无机化学学报》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。

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.

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 

分 类 号：O614.812[理学—无机化学] O614.813[理学—化学] O614.821