CAJ | 학술논문

以氯化钴（CoCl2·6H2O）和氢氧化钠（NaOH）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。
이록화고（CoCl2·6H2O）화경양화납（NaOH）작위반응전구물，채용수열법합성미미급수협상고단질，통과양화환원금속전이반응，파합성적수협상Co미정체작위기저성공제비료Cu표면수식수협상단질Co적자성복합재료，병연구료Cu(NO3)2여Co적마이비화취을희필각완동(PVP)대양품형모적영향。결과표명， Cu(NO3)2여Co적마이비대Cu-Co복합재료형모유착중요적영향，반응중PVP기착점결제적작용，PVP재Cu-Co복합재료결구체적형성중분연착지관중요적각색；수협상Co적주협맥화차협맥환원성비교강。
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.