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论文类型：期刊论文

发表时间：2011-08-01

发表刊物：JOURNAL OF MATERIALS RESEARCH

收录刊物：Scopus、SCIE、EI

卷号：26

期号：16

页面范围：2024-2032

ISSN号：0884-2914

摘要：Carbon nanocoils (CNCs) with diameter from 100 to 150 nm have been synthesized by catalytic decomposition of acetylene at 700 degrees C using Fe-Sn-O catalyst film prepared by a spin-coating method. The CNCs are much smaller in diameter than those synthesized using the catalysts prepared by a sol-gel method and a solution-dipping method. It is found that catalyst films with different morphologies are obtained by changing the spin-coating times, which lead to the formation of different multilayer carbon nanostructures, including CNCs/carbon layer/vertically aligned carbon nanotubes sandwich-like structures, and CNCs/carbon double-layer structures. Based on the experimental results, the growth mechanism of the multilayer carbon nanostructures has been proposed.