TiC Nanorods Derived from Cotton Fibers: Chloride-Assisted VLS Growth, Structure, and Mechanical Properties

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• 作者：Xinyong Tao ; Jun Du ; Yingchao Yang ; Yiping Li ; Yang Xia ; Yongping Gan ; Hui Huang ; Wenkui Zhang ; Xiaodong Li
• 刊名：Crystal Growth & Design
• 出版年：2011
• 出版时间：October 5, 2011
• 年：2011
• 卷：11
• 期：10
• 页码：4422-4426
• 全文大小：864K
• 年卷期：v.11,no.10(October 5, 2011)
• ISSN：1528-7505

文摘

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鈥搇iquid鈥搒olid 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鈥檚 modulus of TiC NRs, which is an important parameter for practical applications. The measured Young鈥檚 modulus of TiC NRs is in the range from 394 to 468 GPa with an average value of 432 卤 22 GPa.