Very rapid growth of aligned carbon nanotubes on metallic substrates

Fei Lung Lu, Jyh Ming Ting

研究成果: Article同行評審

13 引文 斯高帕斯(Scopus)

摘要

Aligned carbon nanotubes were grown on metallic substrates using a microwave plasma-enhanced chemical vapor deposition system. The substrates were Ni and Cu, and the catalyst was an Fe-Si alloy thin film. The effects of substrate and catalyst characteristics and growth temperature were studied. We show, via the use of a microwave shield, and with optimized catalyst thickness and growth temperature, that carbon nanotubes (CNTs) with a length of up to 2.15 mm and an unprecedently high growth rate of 177 μm min-1 can obtained. Non-isothermal growth was performed to investigate the growth kinetics and therefore to obtain the activation energies of CNTs grown on Ni and Cu. Very similar activation energies for the growth of CNTs on Ni and Cu substrates were determined to be 101.5 (1.05 eV) kJ mol-1 and 102.3 (1.06 eV) kJ mol-1, respectively.

原文English
頁(從 - 到)2148-2153
頁數6
期刊Acta Materialia
61
發行號6
DOIs
出版狀態Published - 2013 四月

All Science Journal Classification (ASJC) codes

  • 電子、光磁材料
  • 陶瓷和複合材料
  • 聚合物和塑料
  • 金屬和合金

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