期刊
NANO LETTERS
卷 14, 期 9, 页码 4997-5003出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl501417h
关键词
Carbon nanotubes; heterogeneous catalyst; catalyst support; ion beam bombardment
类别
资金
- Air Force Office of Scientific Research [FA 8650-09-D-5037]
- U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886]
- Purdue Electron Microscopy Consortium
We demonstrate that argon ion bombardment of single crystal sapphire leads to the creation of substrates that support the growth of vertically aligned carbon nanotubes from iron catalysts with a density, height, and quality equivalent to those grown on conventional, disordered alumina supports. We quantify the evolution of the catalyst using a range of surface characterization techniques and demonstrate the ability to engineer and pattern the catalyst support through control of ion beam bombardment parameters.
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