Fabrication of polypyrrole/TiO_2 nanocomposite via electrochemical process and its photoconductivity

来源 :中国有色金属学报(英文版) | 被引量 : 0次 | 上传用户:Rachellanye
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Size-controllable and vertically-oriented TiO_2 nanotube (TNT) arrays were fabricated using anodic oxidation method from pure titanium sheets in electrolyte solutions.Then with the TNT arrays as the working electrode,a thin film of polypyrrole (Ppy) was synthesized into the TNT arrays via the electrochemical polymerization.During the process,the appearance of redox peaks in cyclic voltammetry curves of the resulting films indicates the occurrence of polymerization.The morphology,the molecular structure,crystallization and optical properties of the TNT arrays and the resulting polymer were investigated by field-emission scanning electron microscopy (FESEM),X-ray diffractometry (XRD),Fourier transform infrared spectroscopy (FTIR),and UV-vis spectrum analysis,respectively.A dual-layered photoreceptor containing the nanocomposite film as the charge generation layer (CGL) was designed and fabricated.It is found that the photoreceptor based on Ppy/TiO_2 nanotubes as CGL exhibits remarkable photoconductive performance.
其他文献
Nitrogen-doped fluorinated diamond-like carbon (FN-DLC) films were prepared on single crystal silicon substrate by radio frequency plasma enhanced chemical vapo
A series of solid solutions Er_2W_(3-x)Mo_xO_(12) (0.5≤x≤2.5) were successfully synthesized by the solid state method.Their crystal structures and negative th
YAG:Ce phosphor was synthesized by a novel simple method, wherein the admixture of three raw materials (Y_2O_3, α-Al_2O_3 and CeO_2) were first acidified by di
Based on practical situation of rare earth industrial chain, production process and rare earth materials that could produce solid wastes on batch were discussed
La_2O_3 and Y_2O_3 co-doped Mo secondary emitters were prepared by three kinds of doping method combined with high temperature plasma sintering. The secondary e
The effect of aging on microstructure of Mg-Zn-Er alloys at 473 K was investigated using hardness measurement, scanning elec-tron microscopy (SEM) and transmiss
Tetraethylenepentamine (C_8H_(23)N_5, TEPA) has been used as a novel precipitant to synthesize yttrium aluminum garnet (Y_3Al_5O_(12),YAG) precursor from a mixe
Monometallic catalyst Pt/SAPO-11 was prepared by impregnation method. Bimetallic catalysts LaPt/SAPO-11 or CePt/SAPO-11 was prepared by sequential impregnation
The Fe40Al-xWC (x=0,10,12,15) coatings with dense structure were successfully deposited by high-velocity oxygen fuel (HVOF) spraying of a mixture of Fe,Al and W