Biotemplating fabrication, mechanical and electrical characterizations of NbC nanowire arrays from the bamboo substrate

被引：34

作者：

Du, Jun ^{[1
]}

Yang, Yingchao ^{[2
]}

Fan, Zheng ^{[3
]}

Xia, Yang ^{[1
]}

Cheng, Xuejuan ^{[1
]}

Gan, Yongping ^{[1
]}

Hang, Hui ^{[1
]}

Dong, Lixin ^{[3
]}

Li, Xiaodong ^{[2
]}

Zhang, Wenkui ^{[1
]}

Tao, Xinyong ^{[1
]}

机构：

[1] Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R China

[2] Univ S Carolina, Dept Mech Engn, Columbia, SC 29208 USA

[3] Michigan State Univ, Dept Elect & Comp Engn, E Lansing, MI 48824 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2013年 / 560卷

基金：

美国国家科学基金会;

关键词：

NbC; Biotemplate method; Young's modulus; Electrical property; HYBRID STRUCTURES; KINETICS; COATINGS;

D O I：

10.1016/j.jallcom.2013.02.005

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this work, NbC nanowire arrays were successfully synthesized via a facile and cost-effective biotemplate method. Natural bamboo chips were used as both the carbon source and the template for formation of catalyst particles, which significantly simplify the synthesis process of NbC nanowire arrays. Based on the structural, morphological, and elemental analyses, a fluoride-assisted vapor-liquid-solid growth mechanism was proposed. In situ nanoscale three-point bending measurements demonstrated that the Young's modulus of NbC nanowires was in the range from 281 to 453 GPa with an average value of 338 +/- 55 GPa. The resistivity of NbC nanowires was further investigated by in situ electrical property characterization using a multipoint measurement inside a transmission electron microscope. The resistivity of NbC nanowires was calculated to be 5.02 m Omega cm. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：142 / 146

页数：5

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