锰钴复合氧化物MnCo_2O_4磁性纳米晶的制备及表征

Synthesis and Characterization of MnCo_2O_4 Magnetic Nanocrystals

以高锰酸钾(KMnO_4)、乙酸锰[Mn(Ac)_2]、乙酸钴[Co(Ac)_2)]为原料,采用水热法一步合成了锰钴复合氧化物MnCo_2O_4磁性纳米晶,研究了MnCo_2O_4晶体的形貌、结构及组成,评价了其磁性能.结果表明,所制MnCo_2O_4为纳米片状结构,形貌规则,结晶良好,原子配比可控,粒径分布均匀,粒径为80~120 nm,居里温度为182 K,表现出良好的磁性能.

Mn Co2O4 magnetic nanocrystals was synthesized by one-step method used potassium permanganate（KMnO4）, manganese acetate [Mn（Ac）2] and cobalt acetate [Co（Ac）2] as raw materials. The morphology, structure, composition and magnetic property of Mn Co2O4 crystals were studied. The results showed that Mn Co2O4 magnetic nanocrystals had a narrow size distribution of 80-120 nm and display perfect sheet shape with high crystallinity and good dispersity. Mn Co2O4 nanocrystals exhibit good magnetic property with a high Curie temperature of 182 K.