固体燃料电池阴极材料La0．6Sr0．4Co0．2Fe0．8O3-δ的微观结构与阻抗特性研究
Source abstract
Abstract
复合钙钛矿氧化物La0．6Sr0．4Co0．2Fe0．8O3-δ是一种适于中温固体氧化物燃料电池的阴极材料．采用柠檬酸螯合法合成了La0．6Sr0．4Co0．2Fe0．8O3-δ粉体，并通过XRD和SEM，研究了前驱体溶液pH值和煅烧温度对其粉体晶相结构的影响；同时，通过烧结体的SEM和交流阻抗分析，详细讨论了前驱体溶液pH值和烧结温度对烧结体显微结构和阻抗特性的影响．结果表明，前驱体溶液pH=4、煅烧温度为900。C的粉体，1400℃下烧结2h获得的烧结体，具有最低的阻抗．
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Source: openalex_inverted_index · Quality: short
Research context
OpenAlex topics: Chemical Looping and Thermochemical Processes · Thermal and Kinetic Analysis · Catalytic Processes in Materials Science
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