The MoS2 Nanotubes with Defect-Controlled Electric Properties

被引：80

作者：

Remskar, Maja ^{[1
]}

Mrzel, Ales ^{[1
]}

Virsek, Marko ^{[1
]}

Godec, Matjaz ^{[2
]}

Krause, Matthias ^{[3
]}

Kolitsch, Andreas ^{[3
]}

Singh, Amol ^{[4
]}

Seabaugh, Alan ^{[4
]}

机构：

[1] Jozef Stefan Inst, Ljubljana 1000, Slovenia

[2] Inst Met & Technol, Ljubljana 1000, Slovenia

[3] Forschungszentrum Dresden Rossendorf, Inst Ionenstrahlphys & Mat Forsch, D-01314 Dresden, Germany

[4] Univ Notre Dame, Dept Elect Engn, Notre Dame, IN 46556 USA

来源：

NANOSCALE RESEARCH LETTERS | 2011年 / 6卷

关键词：

FULLERENE-LIKE NANOPARTICLES; MOLYBDENUM-DISULFIDE; INORGANIC NANOTUBES; NANOSTRUCTURES; MICROTUBES; NANOWIRES; EVOLUTION; CATALYST;

D O I：

10.1007/s11671-010-9765-0

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We describe a two-step synthesis of pure multiwall MoS2 nanotubes with a high degree of homogeneity in size. The Mo6S4I6 nanowires grown directly from elements under temperature gradient conditions in hedgehog-like assemblies were used as precursor material. Transformation in argon-H2S/H-2 mixture leads to the MoS2 nanotubes still grouped in hedgehog-like morphology. The described method enables a large-scale production of MoS2 nanotubes and their size control. X-ray diffraction, optical absorption and Raman spectroscopy, scanning electron microscopy with wave dispersive analysis, and transmission electron microscopy were used to characterize the starting Mo6S4I6 nanowires and the MoS2 nanotubes. The unit cell parameters of the Mo6S4I6 phase are proposed. Blue shift in optical absorbance and metallic behavior of MoS2 nanotubes in two-probe measurement are explained by a high defect concentration.

引用

页码：1 / 6

页数：6

共 25 条

[1] Synthesis of open-ended MoS2 nanotubes and the application as the catalyst of methanation [J].