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以MnSO4.H2O和K2HPO4.3H2O为原料,在表面活性剂聚乙二醇(PEG)-400的存在下,通过室温下研磨反应物进行固相反应,然后在室温下保持混合物5 h,接着用水洗去混合物中的可溶性无机盐并于80℃下干燥,即得层状纳米晶Mn3(PO4)2.3H2O。产品Mn3(PO4)2.3H2O和它的热分解产品用TG/DTA,IR,XRD,SEM,UV-V is和磁化率表征。结果表明,80℃下干燥5 h所得的产品具有高的结晶度[空间群Pmnm(59)],其平均一次粒径为19 nm,平均夹层距离为0.811 2 nm。产品Mn3(PO4)2.3H2O的磁化率分析表明该化合物具有铁磁性质,其铁磁排序温度约为17 K。
Starting from MnSO4.H2O and K2HPO4.3H2O, solid phase reaction was carried out by milling the reactants at room temperature in the presence of the surfactant, polyethylene glycol (PEG) -400, and the mixture was then kept at room temperature for 5 h, then treated with The mixture was washed with water to remove soluble inorganic salts and dried at 80 ℃, ie layered nanocrystalline Mn3 (PO4) 2.3H2O. The product Mn3 (PO4) 2.3H2O and its pyrolyzed product were characterized by TG / DTA, IR, XRD, SEM, UV-V is and magnetic susceptibility. The results showed that the product obtained after drying at 80 ℃ for 5 h had high crystallinity [Pmnm (59)] with an average primary particle size of 19 nm and an average interlayer distance of 0.811 2 nm. The magnetic susceptibility of the product Mn3 (PO4) 2.3H2O shows that the compound has ferromagnetic properties with a ferromagnetic ordering temperature of about 17K.