期刊
CARBON
卷 52, 期 -, 页码 535-540出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2012.10.006
关键词
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资金
- National Key Basic Research Program of China [2011CB932602, 2013CB934200]
- National Science Foundation of China [21203107]
- Tsinghua University Initiative Scientific Research Program [2012THZ0]
High-density parallel arrays of ultralong carbon nanotubes (CNTs) were prepared by utilizing catalyst nanoparticles anchored by silica nanospheres through chemical vapor deposition (CVD). Silica nanospheres and catalyst solution were sequentially spin-coated onto the substrates for the growth of ultralong CNTs, followed by annealing to remove the polymer residues. Catalyst nanoparticles can be anchored on the top of or around the silica nanospheres. Then, ultralong CNTs were synthesized with methane as the carbon source at 1010 degrees C under ambient pressure. Our results show that the areal density of the ultralong CNTs produced by this nanosphere-assisted process was obviously improved compared with that by the typical process without nanospheres. (c) 2012 Elsevier Ltd. All rights reserved.
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