Controlled Synthesis of Hydrogen Titanate−Polyaniline Composite Nanowires and Their Resistance−Temperature Characteristics

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• 作者：Ligang Gai ; Guojun Du ; Zhiyuan Zuo ; Yanmin Wang ; Duo Liu ; Hong Liu
• 刊名：Journal of Physical Chemistry C
• 出版年：2009
• 出版时间：May 7, 2009
• 年：2009
• 卷：113
• 期：18
• 页码：7610-7615
• 全文大小：330K
• 年卷期：v.113,no.18(May 7, 2009)
• ISSN：1932-7455

文摘

We report here an in situ polymerization method for the controlled synthesis of core−shell structured hydrogen titanate−polyaniline composite nanowires. The microstructure and physical properties of the composite nanowires were characterized with XRD, FESEM, TEM, FT-IR, thermal analysis, and UV−vis spectroscopy. It is found that the thermal stability of polyaniline in the composite is greatly improved. A hydrogen bond-assisted formation mechanism is proposed to account for the experimental observation. In addition, the temperature dependence of electrical conductivity of an individual composite nanowire was measured as a function of temperature, which reveals improved conductivity compared with hydrogen titanate nanobelt.