溶液中铝还原制备Fe-Co合金纳米粉体  

The Preparation of Fe-Co Alloy Nanoparticles by the Reduction of Aluminum Powders in a Mixed Sulfate Solution

作　　者：张烃烃[1] 周增均[2] 张启运[1] 李星国[1] 

机构地区：[1]北京大学化学与分子工程学院 [2]北京大学介观物理国家重点实验室,北京100871

出　　处：《物理化学学报》2004年第10期1239-1241,共3页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金(20171002)资助项目~~

摘　　要：为了获得价廉而方便的制取Fe-Co纳米粉体的方法,在pH～3,40℃条件下用铝粉还原FeSO4·(NH4)2SO4和CoSO4·(NH4)2SO4的混合溶液,制得了平均粒径为15nm的Fe-Co固溶体粉体.用XRD鉴定了合金的物相和粒度,ICP方法分析了合金的成份.实验表明,固溶体的成份可以通过改变溶液中Fe2+和Co2+的比例而得以调整.A cost effective and convenient method for preparing nanopowders of Fe-Co alloy has been developed. The finely divided powders of Fe-Co alloy in the form of solid-solution were obtained in the FeSO4 . (NH4)(2)SO4 and CoSO4 . (NH4) 2SO4 mixed solution by the reduction of aluminum powders at 40 degreesC and pH similar to3. The product of Fe-Co alloy was identified by XRD method and the calculated size of these nanoparticles was about 15 nm. Meanwhile, the compositions of obtained samples were analyzed by ICP-AES method. Experiment indicated that the composition of the alloy could be easily controlled by changing the mass ratio of Fe2+:Co2+ in the solution.

关 键 词：铁-钴合金 纳米粉体 铝粉 还原剂 固溶体 

分 类 号：TB383[一般工业技术—材料科学与工程]