无水草酸辅助硝酸铁热分解制备高饱和磁化强度γ-Fe_(2)O_(3)纳米粒子  

Preparation of highly saturated magnetizedγ-Fe_(2)O_(3) nanoparticles by thermal decomposition of ferric nitrate assisted by anhydrous oxalic acid

作　　者：高波 赵斯琴[1,2] 长山 GAO Bo;ZHAO Siqin;SAsuha(College of Chemistry and Environmental Science,Inner Mongolia Normal University,Hohhot 010022,China;Inner Mongolia Key Laboratory of Environmental Chemistry,Hohhot 010022,China;Inner Mongolia Laboratory of Physics and Chemistry of Functional Materials,Hohhot 010022,China)

机构地区：[1]内蒙古师范大学化学与环境科学学院,内蒙古呼和浩特010022 [2]内蒙古自治区环境化学重点实验室,内蒙古呼和浩特010022 [3]内蒙古自治区功能材料物理与化学实验室,内蒙古呼和浩特010022

出　　处：《应用化工》2024年第7期1578-1582,共5页Applied Chemical Industry

基　　金：国家自然科学基金项目(22266025);内蒙古自然科学联合基金项目(2022LHMS02001);内蒙古师范大学基本科研业务费专项(2022JBTD009);内蒙古师范大学2024年度化学重点学科建设项目(2024YJSCX06)。

摘　　要：采用硝酸铁和无水草酸为原料,通过简便的一步固相法焙烧制备γ-Fe_(2)O_(3)纳米粒子。采用XRD、SEM-EDS、N_(2)-吸附/脱附和VSM等表征手段分析了样品的结构、形态和磁性能。研究表明,在Fe(NO_(3))_(3)·9H_(2)O中添加C_(2)H_(2)O_(4),可以制备出饱和磁化强度为76.3 emu/g的棒状γ-Fe_(2)O_(3)。γ-Fe_(2)O_(3)Nanoparticles were successfully synthesized by a simple one-step solid-phase method using iron nitrate[Fe(NO_(3))_(3)·9H_(2)O]and anhydrous oxalic acid(C_(2)H_(2)O_(4))as raw materials.The samples’structure,morphology,and magnetic properties were analyzed by XRD,SEM-EDS,and N_(2)-adsorption/deactivation VSM.The results show that adding C_(2)H_(2)O_(4)to Fe(NO_(3))3·9H_(2)O can successfully prepare rod-likeγ-Fe_(2)O_(3)with saturation magnetization of 76.3 emu/g.

关 键 词：九水硝酸铁 高饱和磁化强度 棒状γ-Fe_(2)O_(3) 一步固相法 

分 类 号：TQ138.11[化学工程—无机化工] TB34[一般工业技术—材料科学与工程]