树叶状Cu-Co磁性复合材料的制备及形貌  

Synthesis and morphology of leaf-shaped Cu-Co magnetic composite materials

作　　者：赵修彬[1] 刘静[1] 李劲松[1] 邱伟国[1] 

机构地区：[1]中钢集团安徽天源科技股份有限公司,安徽马鞍山243000

出　　处：《磁性材料及器件》2014年第6期23-25,68,共4页Journal of Magnetic Materials and Devices

摘　　要：以氯化钴(Co Cl2·6H2O)和氢氧化钠(Na OH)作为反应前驱物,采用水热法合成微米级树叶状钴单质,通过氧化还原金属转移反应,把合成的树叶状Co微晶体作为基底成功制备了Cu表面修饰树叶状单质Co的磁性复合材料,并研究了Cu(NO3)2与Co的摩尔比和聚乙烯吡咯烷酮(PVP)对样品形貌的影响。结果表明,Cu(NO3)2与Co的摩尔比对Cu-Co复合材料形貌有着重要的影响,反应中PVP起着粘结剂的作用,PVP在Cu-Co复合材料结构体的形成中扮演着至关重要的角色;树叶状Co的主叶脉和次叶脉还原性比较强。Leaf-shaped Co microcrystals have been prepared via hydrothermal reduction reaction using CoCl2·6H2O and NaOH as starting materials. The obtained leaf-shaped cobalt can be used as substrate to prepare Cu-decorated Co composite materials through redox-transmetallation reaction. The influence of Cu（NO3）2/Co mole ratio and PVP on the morphologies has been studied. The results demonstrate that PVP plays a crucial role in forming the Cu-decorated Co composite structures. The reducibility of leaf-shaped Co trunk and lateral branch is stronger.

关 键 词：Cu-Co复合材料 树叶状 水热法 形貌 

分 类 号：TM274[一般工业技术—材料科学与工程]