ZnFe_2O_4纳米结构制备及其Mssbauer谱分析  

ZnFe_2O_4 Nano-structure Preparation via Water Splitting Reaction and Mssbauer Spectrum Analysis

作　　者：徐波[1] 王树林[2] 李生娟[2] 李来强[2] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]上海理工大学材料科学与工程学院,上海200093

出　　处：《材料工程》2011年第8期28-31,共4页Journal of Materials Engineering

基　　金：国家自然科学基金资助项目(50575147);上海市教委重点学科资助项目(J50503)

摘　　要：通过水解Zn/Fe3O4纳米粒子制备ZnFe2O4纳米结构,采用XRD和TEM检测产品的成分和形貌变化,验证反应过程方程的正确性。结果表明:当反应温度为260℃时,产品中含有ZnO纳米棒,随着反应温度升至300℃,ZnO纳米棒逐渐消失,得到纯度较高的ZnFe2O4纳米颗粒,粒度分布在20～30nm范围内。产品的Mssbauer谱分析,显示样品为磁分裂六线谱,晶体结构为正、反尖晶石混合结构,为磁有序结构,呈反铁磁性。ZnFe2O4 nano-particles were manufactured by hydrolyzing Zn/Fe3O4 nano-particles,and the ingredient and morphology of the product were tested by XRD and TEM in order to examine and verify the water splitting process equations to be true.The results indicated that the product included ZnO nano-rods at 260℃.The ZnO nano-rods disappeared gradually when the reaction temperature rose to 300℃,and then relatively pure ZnFe2O4 nano-particles were gained.Mssbauer spectrum of the product presented a well defined sextet spectrum,and its crystal structure was a mixed spinel structure.The product took on antiferromagnetism with a magnetic nonrandom structure.

关 键 词：ZN铁氧体 Zn/Fe3O4 水解反应 Mssbauer谱 

分 类 号：TB381[一般工业技术—材料科学与工程]