CAJ | 학술논문

以MnSO_4·H_2O和K_2HPO_4·3H_2O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Mn_3(PO_4)_2·3H_2O.产品Mn_3(PO_4)_2·3H_2O和它的热分解产品用TG/DTA,IR,XRD,SEM,UV-Vis 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Mn_3(PO_4)_2·3H_2O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.
이MnSO_4·H_2O화K_2HPO_4·3H_2O위원료,재표면활성제취을이순(PEG)-400적존재하,통과실온하연마반응물진행고상반응,연후재실온하보지혼합물5 h, 접착용수세거혼합물중적가용성무궤염병우80 ℃하간조,즉득층상납미정Mn_3(PO_4)_2·3H_2O.산품Mn_3(PO_4)_2·3H_2O화타적열분해산품용TG/DTA,IR,XRD,SEM,UV-Vis 화자화솔표정.결과표명,80 ℃하간조5 h소득적산품구유고적결정도[공간군 Pmnm(59)],기평균일차립경위19 nm,평균협층거리위0.811 2 nm.산품Mn_3(PO_4)_2·3H_2O적자화솔분석표명해화합물구유철자성질,기철자배서온도약위17 K.
The layered nanocrystalline Mn_3(PO_4)_2 · 3H_2O was obtained by grinding MnSO_4 · H_2O and K_2HPO_4 · 3H_2O in the presence of surfactant PEG400 via a solid-state reaction at room temperature, then the mixture was kept at room temperature for 5 h, washed with water to remove soluble inorganic salts, and dried at 80 ℃. The Mn_3(PO_4)_2 · 3H_2O and its products of thermal decomposition were characterized using TG/DTA, IR, XRD, SEM,UV-Vis, and magnetic susceptibility. The data showed that when dried at 80 ℃ for 5 h, high crystallization Mn_3(PO_4)_2·3H_2O[space group Pmnm(59)] was obtained with an average particle size of 19 nm and an average interlayer distance of 0.811 2 nm. Magnetic susceptibility analysis of Mn_3(PO_4)_2 · 3H_2O shows that the compound has ferrimagnetic properties, and ferrimagnetic ordering at 17 K.