摘要
利用高功率CO2连续激光照射C2H2,使之热解,成功制备了中空壳状碳纳米颗粒(CNSs),为增强其分散性,用王水对所制备的CNSs进行表面处理。利用TEM、XRD、FTIR以及Zeta电位测量等技术对CNSs和经化学处理后的碳纳米颗粒(T-CNSs)进行了对比分析。结果表明:CNSs壳层内碳原子呈石墨状规则排列;T-CNSs表面带有含氧的亲水官能团,使其很容易分散;化学处理没有改变CNSs的结构。
Carbon nanoshells （CNSs） were produced by CO2 laser irradiated pyrolysis of C2H2 in a continuous process. Hydrophilic functional groups were introduced onto the surface of the CNSs by treatment with a mixture of boiling nitric and hydrochloric acids to improve their dispersive characteristics. TEM, XRD, FTIR, and zeta potential analysis were used to characterize the CNSs and the treated CNSs. Results showed that oxygen-containing functional groups were formed on the surface of the treated CNSs, which enhanced their dispersibility in water. The layer structure of the CNSs remained unchanged after the acid treatment.
出处
《新型炭材料》
SCIE
EI
CAS
CSCD
北大核心
2007年第1期80-83,共4页
New Carbon Materials
关键词
壳状碳纳米颗粒
制备
表征
化学处理
Carbon nanoshells
Preparation
Characterization
Chemical treatment
