采用甘氨酸-硝酸盐燃烧法和溶液原位复合技术分别制备了镧掺杂钙锰氧体(La1-χCar Mno.7Coo.3O3,χ=1.0,0.9,0.8,0.7,0.6)粉末及其聚吡咯(PPy)相对质量分数为60%和80%的钙锰氧体/聚吡咯复合物微粒Lao.3Ca0.7Mno.7Co0.3O3/PPy.借助FTIR、XRD、SEM和电化学测试等分析手段表征了钙锰氧体粉末及其复合材料的结构、形貌和电化学性能.结果表明,复合材料中包覆的聚吡咯外层和复合氧化物之间存在相互作用,PPy减少了纳米颗粒的团聚现象,La0.3 Ca0.7 Mn0.7 Co0.3O3和La0.3 Ca0,7 Mn0.7Co0.3O3/PPy的粒径分别为46.2 nm和43.5 nm,并且复合物的氧化还原峰电流随吡咯含量的增加而变大.
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