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用甘氨酸-硝酸盐燃烧法制备掺杂的钙钛矿型La0.7Ca0.3Fe0.25Co0.75O3纳米晶体复合氧化物;以苯胺、过硫酸铵为原料,盐酸为溶剂,采用原位聚合法合成粒径为18.1nm的La0.7Ca0.3Fe0.25Co0.75O3-聚苯胺纳米复合材料。用IR、XRD、SEM和电化学测试对复合材料进行表征。结果表明;La0.7Ca0.3Fe0.25Co0.75O3纳米晶体阻碍了聚苯胺结晶,复合材料中PANI和La0.7Ca0.3Fe0.25Co0.75O3存在相互作用,高分子基体在一定程度上减少了纳米颗粒的团聚。循环伏安表明,在KOH溶液中,复合材料有更好的电化学活性。
Preparation of doped perovskite-type La0.7Ca0.3Fe0.25Co0.75O3 nanocrystalline composite oxide by glycine-nitrate combustion method; aniline and ammonium persulfate as raw materials, hydrochloric acid as solvent, and in-situ polymerization to synthesize pellets La0.7Ca0.3Fe0.25Co0.75O3-polyaniline nanocomposite with a diameter of 18.1nm. The composites were characterized by IR, XRD, SEM and electrochemical tests. The results show that the crystal of polyaniline is hindered by La0.7Ca0.3Fe0.25Co0.75O3 nanocrystals, the interaction between PANI and La0.7Ca0.3Fe0.25Co0.75O3 exists in the composites, and the polymer matrix reduces the effect of nanoparticle Reunion Cyclic voltammetry shows that the composite has better electrochemical activity in KOH solution.