Low Temperature Growth of Vertically Aligned Carbon Nanotubes via Floating Catalyst Chemical Vapor Deposition Method

查看全文 作　　者：[1]M.R.Atiyah;D.R.Awang [1]Biak;[1]F.Ahmadun;[1]I.S.Ahamad;F.Mohd [1]Yasin;H.Mohamed [1]Yusoff 机构地区：[1]Department of Chemical and Environmental Engineering,Universiti Putra Malaysia 出　　处：《Journal of Materials Science & Technology》索引2011年第27卷第4期,共5页 基　　金：supported by Research Universiti Grant,Universiti Putra Malaysia (Project No. RU01154) 摘　　要：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：催化化学气相沉积法 碳纳米管 垂直排列 低温生长 浮动 预热温度 管通 反应温度