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

被引：9

作者：

Weng Mengting ^{[1
]}

Yanase, Takashi ^{[1
]}

Uehara, Fumiya ^{[1
]}

Watanabe, Sho ^{[1
]}

Miura, Takuya ^{[1
]}

Nagahama, Taro ^{[1
]}

Shimada, Toshihiro ^{[1
]}

机构：

[1] Hokkaido Univ, Div Appl Chem, Fac Engn, Kita Ku, Kita 13 Nishi 8, Sapporo, Hokkaido 0608628, Japan

来源：

CRYSTENGCOMM | 2017年 / 19卷 / 28期

关键词：

CHEMICAL-VAPOR-DEPOSITION; CARBON NANOTUBES; THIN-FILM; RAMAN; FLOW; TRANSISTORS; NANOWIRES; MECHANISM; DENSITY; SILICON;

D O I：

10.1039/c7ce00608j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nanowires of layered materials are important because they exhibit the highest sensitivity as electricallydetecting chemical sensors. MoS2 nanowires have been synthesized by a 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. Their 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 are competing, giving rise to the observed switching.

引用

页码：3915 / 3920

页数：6