摘要
用CuSO4·5H2O和NaOH为原料,一种六元脂肪族醇为还原剂,X射线衍射(XRD)和扫描电镜(SEM)为主要表征手段,研究了不同水热条件下铜的还原。结果表明,水热条件变化时,可以得到形貌各异的氧化亚铜和金属铜。其中,当n(OH-)∶n(Cu2+)∶n(醇)=4∶1∶1,,水热温度为180℃、反应时间为20h时,得到产物经XRD分析确定为金属铜,SEM照片显示,在产物中有纳米棒和纳米线形成,纳米棒的直径在100～500nm不等,长径比在50以上,而纳米线比纳米棒更细,蜿蜒曲折,柔韧性较好。
With CuSO_4·5H_2O and NaOH as main sources and a kind of aliphatic polyol as reductant,the reduction of Cu^2+ under different hydrothermal conditions was studied via XRD and SEM.The results show that Cu_2O and/or Cu with different kinds of morphologies can be fabricated when the hydrothermal conditions are changed.When the ratio n(OH-)∶n(Cu^2+) was 4,and the aliphatic polyol was added in equal moles with Cu^2+,at hydrothermal temperature of 180 ℃ after 20 hours,some copper nanorods and nanowires were fabricated as characterized by XRD and SEM.The SEM images show that the nanorods are about 100～500 nm in diameter and the aspect ratio is more than 50,meanwhile the nanowires are even thinner than nanorods in diameter and seem very soft through the SEM images.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2005年第6期417-419,共3页
Fine Chemicals
关键词
金属铜
纳米棒
纳米线
水热条件
脂肪族多元醇
metal Cu
nanorods
nanowires
hydrothermal conditions
aliphatic polyol
