四氧化三铁的制备.docVIP

四氧化三铁纳米片的制备及其对液体石蜡摩擦学的改性 张锡凤1)1) 程晓农2) 殷恒波1) 1) 郝伟1) 严冲2) 1) 江苏大学 化学化工学院，江苏 镇江 212013 2江苏大学 ，江苏 镇江 212013摘要：采用液相化学法，在水体系中，水合肼为，加入（）为修饰剂，合成了。通过X-射线衍射（XRD）、透射电子显微镜（TEM）SEM）和对进行了表征。将加到基础油中，在UNT-Ⅱ摩擦磨损实验机上考察作为添加剂后的摩擦磨损性能，采用SEM分析了磨损表面形貌和表面膜元素组成及含量。结果表明：与不加的相比，添加后较大程度的降低了摩擦系数，并获得较的磨痕，显著改善了的摩擦性能Preparation of Fe3O4 Nanopiece and Modification Tribological Property of Liquid Paraffin as Its Additive ZHANG Xifeng1, LIU Xiaoguang1, CHENG Xiaonong2, YIN Hengbo1, Cao zhijuan1, HAO Wei1, YAN Chong2 (1. School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, 212013; 2. School of Material Science and Engineering, Jiangsu University, Zhenjiang, 212013. ) 20nm thick and 152nm length Fe3O4 Nanopieces were synthesized using ferrous sulfate as precursor in water systems, hydrazine hydrate as reductant, polyethylene sorbitan monooleate （Tween-80） as modifier. The as-prepared Fe3O4 Nanopieces were characterized by transmission electron micrographs (TEM), powder X-ray diffraction (XRD), scanning electron microscope (SEM), high concentration laser granularity scatter analyzer. The anti-wear and friction reducing performance of Fe3O4 nanopieces as liquid paraffin additive was investigated on UNT-Ⅱ ball-on-plate friction and wear testers. The worn surface morphology and composition of surface film were analyzed by means of scanning electron microscope (SEM). Compared with pure liquid paraffin, the results indicate that the tribological property of liquid paraffin with Fe3O4 nanopieces is improved, the friction coefficients are decreased, and the worn diameter is lesser. ferroso-ferric oxide; nanowires; synthesis (chemical); tribological property granularity scatter 纳米金属材料的晶粒尺寸与形貌、表面状态和微结构直接影响到纳米金属的物化性质与用途。目前纳米金属的形貌控制合成与应用研究尚处于起步阶段，纳米Fe3O4具有与生物组织的相容性以及与尺寸和形貌有关的电学和磁学性能使它在磁性墨水、电子与生物敏感材料、磁流体和磁记录材料高密度磁记录介质和生物医药等领域具有广泛的应用人们采用各种物理化学方法已制备了单分散性的Fe3O4纳米颗粒、八面体、纳米棒、纳米线、纳米链、纳米管、纳米锥阵列、空心微球、三维超晶格和纳米花等纳米结构由于Fe3O4的反尖晶石结构和固有的磁性二维结构纳米片的制备被认为是非常困难的最近 ZouZhong等人Nanotechnology (16(2005): 1