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Low Temperature Growth of Vertically Aligned Carbon Nanotubes via floating catalyst Chemical Vapor Deposition Method

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Journal of Materials Science & Technology 2011年第4期27卷 296-300页

作者： M.R.Atiyah D.R.Awang Biak F.Ahmadun I.S.Ahamad F.Mohd Yasin H.Mohamed Yusoff Department of Chemical and Environmental Engineering Universiti Putra Malaysia

Synthesis of carbon nanotubes （CNTs） below 600℃ using supporting catalyst chemical vapor deposition method was reported by many research groups. However, the floating catalyst chemical vapor deposition received less attention due to imperfect nanotubes produced. In this work, the effects of varying the preheating temperature on the synthesis of CNT were investigated. The reaction temperature was set at 570℃. The preheating set temperature was varied from 150 to 400℃ at 50℃ interval. Three O-ring shape heating mantels were used as heating source for the preheater. In situ monitoring device was used to observe the temperature profile in the reactor. Benzene and ferrocene were used as the carbon source and catalyst precursor, respectively. Vertically aligned CNTs were synthesized when the preheating temperature was set at 400℃. When the preheating temperature was increased up to 400℃, both the length and the alignment of CNTs produced were improved.

关键词： Vertically aligned carbon nanotubes (CNTs) floating catalyst Low synthesistemperature Preheating set temperature

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Preparation of horizontally aligned single-walled carbon nanotubes with floating catalyst

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Science China Chemistry 2017年第4期60卷 516-520页

作者： Rongli Cui Xiulan Zhao Ruoming Li Yu Liu Da Luo Feng Yang Yan Li Beijing National Laboratory for Molecular Sciences Key Laboratory for the Physics and Chemistry of Nanodevices State Key Laboratory of Rare Earth Materials Chemistry and Applications College of Chemistry and Moleeular Engineering Peking University Beijing 100871 China

A strategy to prepare horizontally aligned single-walled carbon nanotubes(SWNTs) at moderate temperatures(≤600 ℃) were *** ferocene as the catalyst precursor,Fe nanoparticles are formed in the gaseous phase and catalyze the nucleation and growth of SWNTs in *** the resultant SWNTs are deposited onto the substrates downstream and aligned by the surface lattice of the ST-cut single crystal *** preparation of SWNT arrays at moderate temperatures is important for combining the tube growth with device fabrication.

关键词： horizontally aligned carbon nanotubes chemical vapor deposition floating catalyst

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