固体氧化物燃料电池阳极材料La0.75Sr0.25Cr0.5Mn0.5O3-δ的合成及选择性研究

固体氧化物燃料电池阳极材料La_0.75Sr_0.25Cr_0.5Mn_0.5O_3-δ的合成及选择性研究

摘要: 固体氧化物燃料电池（Solid oxide fuel cell, SOFC）是一种新型的清洁能源，而其阳极材料是固体氧化物燃料电池的最关键的部分，阳极材料的好坏会直接影响SOFC的性能.文中介绍了SOFC阳极材料La_0.75Sr_0.25Cr_0.5Mn_0.5O_3-δ（LSCM）的合成方法和性能表征.分别采用甘氨酸-燃烧法和柠檬酸溶胶-凝胶法合成La_0.75Sr_0.25Cr_0.5Mn_0.5O_3-δ（LSCM），然后把合成的LSCM放在温度分别是800 ℃、900 ℃、1 000 ℃的马弗炉中进行高温烧结一定的时间，通过对产品进行XRD、SEM、电化学性能分析，得出了采用溶胶-凝胶法合成LSCM后，经1 000 ℃高温煅烧为较优的合成方法和实验条件.

Abstract: Solid oxide fuel cell (SOFC) is a new type of clean energy and its core part is the anode material whose property will directly affect the performance of SOFC. The synthesis method and property characterization of anode material La_0.75Sr_0.25Cr_0.5Mn_0.5O_3-δ(LSCM) for SOFC were introduced in this paper. LSCM was synthesized respectively by glycine-combustion method and citric acid sol-gel method. Then the synthesized LSCM was sintered at a temperature of 800 ℃, 900 ℃, 1 000 ℃ in the muffle furnace for a certain period of time. Finally, a conclusion was drawn that the finest LSCM was synthesized by sol-gel method and sintered at 1 000 ℃ through the XRD, SEM, electrochemical performance analyses.