一维钴纳米材料的简单制备及其磁性和电磁性能研究（英文）  

The facile preparation of 1D cobalt nanostructures and their magnetic and electromagnetic performance

作　　者：孟红杰[1,2] 于萍[3] 赵晓伟[1] 余来贵[2] 贾勇帅 刘浩杰[1] 吕晓燕[2] 龚春红[1] 

机构地区：[1]河南大学化学化工学院,河南开封475004 [2]河南大学纳米材料工程研究中心,河南开封475004 [3]河南大学物理与电子学院光伏材料省重点实验室,河南开封475004

出　　处：《化学研究》2015年第6期614-618,共5页Chemical Research

基　　金：The Natural Science Foundation of China(50902045)

摘　　要：在常压下采用简单的液相还原法制备了一维钴纳米材料,并对比了一维纳米材料在研磨前后的形貌变化。结果表明,外加磁场的存在更利于钴纳米晶体的取向生长,得到的一维钴纳米材料在被充分研磨后仍然保持有较大的长径比,并且具有更好的电磁吸波性能.In this work,one-dimensional（1D）cobalt nanostructures were prepared viathe facile reduction of Co^2＋ ions under atmospheric pressure.The morphology change after the grinding of the 1Dsample cobalt nanostructures was also investigated.Results reveal that the external magnetic field promotes the preferred orientation of Co nanostructures and the obtained 1D nanostructure retains a large aspect ratio after it is fully ground.Moreover,the Co nanostructures obtained with an external magnetic field exhibits a better electromagnetic wave absorbance.

关 键 词：钴 磁性材料 晶体生长 外加磁场 电磁性能 

分 类 号：O441.6[理学—电磁学]