合成了新型固体氧化物燃料电池(SOFC)阳极材料La0.75Sr0.25Mn0.5Cr0.5-xCuxO3-δ (LSMCr0.5-xCux,x=0、0.05、0.10、0.20).通过X射线衍射(XRD)表征其物相结构和与电解质的化学相容性,通过透射电子显微镜(TEM)表征其微观形貌.用直流四探针法测试了材料的电导率；交流阻抗法表征了材料的阳极阻抗特性.结果表明:LSMCr0.5-xCux材料均为菱方钙钛矿晶相,Cu的掺入导致晶胞体积和粉体粒径增大.x≤0.10时,阳极粉体与YSZ在1200℃烧结3h无第三相生成,具有良好的化学相容性.LSMCr0.5-xCux在空气和5％H2-Ar气氛下的电导率均随x的增加而增大；在湿润的5％H2-Ar气氛下的阳极极化面电阻(ASR)均低于未掺杂的LSCM,x=0.05时ASR最低,900℃时仅有0.38Ω·cm2.
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