Yang Sze-Ming, Lu Ming-De
Department of Chemical and Materials Engineering, National Central University, Chung-Li 32054, Taiwan.
J Nanosci Nanotechnol. 2006 Dec;6(12):3960-4. doi: 10.1166/jnn.2006.672.
Synthesis of bilayer tubes of poly(3,4-ethylenedioxythiophene) (PEDT) and titania by electrochemical polymerization of PEDT and chemical deposition of titania in the pores of anodic alumina was reported. Electron diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and fourier transformed infrared spectroscopy (FTIR) were used to characterize these bilayer tubes. SEM photographs show the tubes of uniform diameters around 200 nm. TEM photographs confirm the formation of titania and PEDT bilayer tubes of 230 nm and 100 nm diameter, the thickness of outside TiO2 layer and inner PEDT layer are around 20 nm under the experimental condition. The XPS spectra of the bilayer tubes show that the Ti2p peak shifts to a lower binding energy and S2p peak shifts to a higher binding energy. Electron diffraction patterns show that TiO2 nanotubes formed was single crystals of anatase phase. I-V characteristic curves were measured for samples prepared under various conditions.
报道了通过聚（3,4-乙撑二氧噻吩）（PEDT）的电化学聚合以及在阳极氧化铝孔中化学沉积二氧化钛来合成聚（3,4-乙撑二氧噻吩）（PEDT）与二氧化钛的双层管。利用电子衍射、扫描电子显微镜（SEM）、透射电子显微镜（TEM）、X射线光电子能谱（XPS）和傅里叶变换红外光谱（FTIR）对这些双层管进行了表征。SEM照片显示直径约200nm的均匀管径的管子。TEM照片证实形成了直径为230nm和100nm的二氧化钛和PEDT双层管，在实验条件下，外层TiO2层和内层PEDT层的厚度约为20nm。双层管的XPS光谱表明，Ti2p峰向较低结合能移动，S2p峰向较高结合能移动。电子衍射图谱表明形成的TiO2纳米管是锐钛矿相的单晶。对在各种条件下制备的样品测量了I-V特性曲线。
