Preparation and characterization of polypyrrole/TiO2 coaxial nanocables

被引：68
作者：
Lu, XF
Zhao, QD
Liu, XC
Wang, DJ
Zhang, WJ [1 ]
Wang, C
Wei, Y
机构：
[1] Jilin Univ, Alan G MacDiarmid Inst, Changchun 130012, Peoples R China
[2] Jilin Univ, Dept Chem, Changchun 130012, Peoples R China
[3] Drexel Univ, Dept Chem, Philadelphia, PA 19104 USA
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2006年 / 27卷 / 06期
关键词：
coaxial nanocables; electrospinning; polypyrroles; TiO2;
D O I：
10.1002/marc.200500810
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
We demonstrate in this communication that large-scale coaxial nanocables of polypyrrole (PPy)/TiO2 can be obtained via three steps: (1) synthesis of TiO2 nanofibers by electrospinning; (2) physical adsorption Fe3+ oxidant on the surface of TiO2 nanofibers; (3) followed by polymerization of pyrrole (from vapor) on the surface of TiO2 nanofibers. During the synthesis, the PPy formed on TiO2 nanofibers as a template and formed PPy/TiO2 coaxial nanocables. TEM image proved that PPy (20 nm thickness) covered the surface of TiO2 nanofibers. Fourier-transform infrared (FTIR), X-ray photoelectron spectra (XPS), and X-ray diffraction patterns (XRD) characterized the chemical structure of the coaxial nanocables. Surface photovoltage spectroscopy (SPS) revealed the surface properties of the PPy/TiO2 coaxial nanocables.
引用
收藏
页码：430 / 434
页数：5
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