Synthesis of Carbon Nanotubes using Cu-Cr-O as Catalyst by Chemical Vapor Deposition
Synthesis of Carbon Nanotubes using Cu-Cr-O as Catalyst by Chemical Vapor Deposition作者机构:School of Mechanical Engineering University of Shanghai for Science and Technology School of Materials Science and Engineering University of Shanghai for Science and Technology
出 版 物:《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报(材料科学英文版))
年 卷 期:2014年第29卷第5期
页 面:928-932页
核心收录:
学科分类:081702[工学-化学工艺] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0702[理学-物理学]
基 金:Supported by National Natural Science Foundation of China(No.51201107) Key Basic Research Project of Shanghai Committee of Science and Technology in China(10JC1411800)
主 题:carbon nanotubes Cu-Cr-O catalyst chemical vapor deposition calcined temperature
摘 要:A novel powder catalyst Cu-Cr-O applied to the synthesis of carbon nanotubes (CNTs) was developed, which was prepared via ammonia precipitation method. Techniques of thermo-gravimetric/ differential scanning calorimeter (TG-DSC), X-ray diffraction (XRD) as well as scanning electron microscopy (SEM) and transmission electron microscopy (TEM) have been employed to characterize the thermal decomposition procedure, crystal phase and micro structural morphologies of the as-synthesized materials, respectively. The results show that carbon nanotubes are successfully synthesized using Cu-Cr-O as catalyst when the precursors are calcined at 400, 500, 600, and 700 ℃. The results indicate that the calcination of the Cu-Cr-O catalyst at 600 ℃ is an effective method to get MWCNT with few nano-tube defects or amorphous carbons.