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Switching of the products by size and shape of catalytic nanoparticles during CVD growth of MoS2 nanotubes

Abstract

Nanowires of layered materials are important because the highest sensitivity as electrically-detected chemical sensors is expected. MoS2 nanowires have been synthesized by the catalytic chemical vapor deposition method on silicon substrates drop-coated with FeO nanoparticles of different shapes. Switching of the products (MoS2 nanowires to SiO2 nanowires) has been observed when the shapes and sizes of the FeO nanoparticles changed. MoS2 nanowires were grown in the presence of six-horned octahedral nanoparticles, whereas SiO2 nanowires were formed in the presence of spherical nanoparticles. The morphology, crystal structure and elemental composition have been fully investigated to elucidate the growth mechanism of the nanowires. The kinetics of the grown SiO2 and MoS2 nanowires is competing, giving rise to the observed switching.

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Publication details

The article was received on 30 Mar 2017, accepted on 05 Jun 2017 and first published on 07 Jun 2017


Article type: Paper
DOI: 10.1039/C7CE00608J
Citation: CrystEngComm, 2017, Accepted Manuscript
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    Switching of the products by size and shape of catalytic nanoparticles during CVD growth of MoS2 nanotubes

    M. Weng, T. Yanase, F. Uehara, S. Watanabe, T. Miura, T. Nagahama and T. Shimada, CrystEngComm, 2017, Accepted Manuscript , DOI: 10.1039/C7CE00608J

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