Synthesis of Carbon Nanotubes using Cu-Cr-O as Catalyst by Chemical Vapor Deposition
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2014年第5期
论文作者：赵腾腾 刘萍 CHEN Xiaohong ZHAO Chunjing LIU Xinkuan LI Wei
文章页码：928 - 932
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.
赵腾腾1，刘萍2，CHEN Xiaohong2，ZHAO Chunjing2，LIU Xinkuan2，LI Wei2
1. School of Mechanical Engineering, University of Shanghai for Science and Technology2. School of Materials Science and Engineering, University of Shanghai for Science and Technology
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.
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