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电化学(中英文) ›› 2003, Vol. 9 ›› Issue (4): 381-386. 

• 研究论文 •    下一篇

Y型分支的碳纳米管的氧化铝模板法制备及其表征(英文)

张静,高泉涌,杨勇   

  1. 固体表面物理化学国家重点实验室厦门大学化学系,固体表面物理化学国家重点实验室厦门大学化学系,固体表面物理化学国家重点实验室厦门大学化学系 福建厦门361005 ,福建厦门361005 ,福建厦门361005
  • 收稿日期:2003-11-28 修回日期:2003-11-28 出版日期:2003-11-28 发布日期:2003-11-28

Preparation and Characterization of Y-type Carbon Nanotubes by Using Anodized Alumina Oxide (AAO) Template

ZHANG Jing, GAO Quan_yong, YANG Yong* of Chemistry, Xiamen University, Xiamen 361005, China)   

  • Received:2003-11-28 Revised:2003-11-28 Published:2003-11-28 Online:2003-11-28

摘要:  利用两步氧化法,通过对氧化直流电压进行周期性调制可制备出带有Y型孔道的氧化铝模板;然后以金属钴为催化剂,乙炔为碳源,通过CVD法制取得到具有规则Y型分支的碳纳米管阵列.已制备出的碳管分支角度在20°~120°的范围内.实验表明,两段分支所成的角度以及分支的长度与合成氧化铝模板的脉冲电压调节规律有关,短脉冲,高氧化电压有利于生长出的短而密集的分支构型.

关键词: 氧化铝模板, Y型分支, 脉冲电压

Abstract: In this work, potential_modulation method was used in two_step anodization process to make an AAO template with Y_type nanochannels. Then Y_type carbon nanotubes with controlled length and branch angle were prepared in the template based on chemical vapor decomposion (CVD) method with Co particles as catalyst and C2H2 as carbon source. The Y_type nanotube branches exhibit the angle distribution ranging from 20° to 120°. The results demonstrated that the oxidation potential should be responsible for the angles and length of the branches. Short pulse and high oxidation potential will result in the short and dense nanotube branches. 

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