不同催化剂表面定向生长单壁碳纳米管的研究  

Growth of single-walled carbon nanotube arrays from different metallic catalysts on substrates

作　　者：黄斌[1] 王春艳[1] 任广元[1] 陈泉水[1] 

机构地区：[1]东华理工大学材料科学与工程系,抚州344000

出　　处：《化工新型材料》2011年第10期60-62,共3页New Chemical Materials

基　　金：东华理工大学校长基金项目(DHXK0904)

摘　　要：以不同含水量的乙醇为碳源,分别以Fe/Mo、Ag、Au为催化剂,采用化学气相沉积法制备了单壁碳纳米管。通过SEM,AFM,TEM等表征方法研究了碳纳米管的形貌和微观结构。结果表明,用Fe/Mo、Ag、Au均能长出高质量的碳管阵列,特别是Au的"Sputtering"法,可以不用繁琐地制备纳米颗粒催化剂便得到SWNT阵列。同时也研究了乙醇中含水量对生长碳管的影响,得出含水量3%的乙醇最有利于碳管的生长。探讨3种不同金属催化剂生长碳纳米管的机理,发现Fe/Mo催化剂是遵从VLS机理,而Ag、Au催化剂来生长碳材料,是由本身的纳米颗粒尺寸直接决定的。We prepared superlong well-oriented SWNT arrays with high quality by using Fe/Mo,Ag and Au as catalysts respectively.More especially,with Au-Sputtering,we can easily obtain SWNT arrays without synthesizing the nanoparticales of catalysis.The effect of the content of water in ethanol was also studied in detail and we found that 3% water was in favor of SWNTs growth,and the growth mechanism was discussed in details subsequently.

关 键 词：单壁碳纳米管 化学气相沉积 催化剂 

分 类 号：TB383.1[一般工业技术—材料科学与工程]