TiC Nanorods Derived from Cotton Fibers: Chloride-Assisted VLS Growth, Structure, and Mechanical Properties
TiC Nanorods Derived from Cotton Fibers: Chloride-Assisted VLS Growth, Structure, and Mechanical Properties
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棉纤维衍生的 TiC 纳米棒:氯化物辅助 VLS 生长、结构和机械性能
DOI:
10.1021/cg2005979
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发表时间:
2011-09
期刊:
影响因子:
--
通讯作者:
Li, Xiaodong
中科院分区:
文献类型:
--
作者:
Tao, Xinyong;Du, Jun;Yang, Yingchao;Li, Yiping;Xia, Yang;Gan, Yongping;Huang, Hui;Zhang, Wenkui;Li, Xiaodong
In this work, single-crystalline TiC nanorods (NRs) were successfully synthesized via a simple, convenient, and cost-effective biotemplate method. Use of natural nanoporous cotton fibers as both the carbon source and the template for formation of catalyst particles significantly simplifies the synthesis process of TiC NRs. On the basis of the structural, morphological, and elemental analyses, a chloride-assisted vapor–liquid–solid growth mechanism and the corresponding growth model were proposed. The activation energy for the TiC NRs was calculated to be 259 kJ/mol. From in situ nanoscale three-point bending measurements, we also determined the Young’s modulus of TiC NRs, which is an important parameter for practical applications. The measured Young’s modulus of TiC NRs is in the range from 394 to 468 GPa with an average value of 432 ± 22 GPa.
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