Synthesis and characterization of conductive polyaniline/TiO2 composite nanofibers

• 来源期刊: 中国高等学校学术文摘·化学
• 关键词: PANI/TiO2 composite nanofibers in situpolymerization
• 年，卷（期）: 2007,（2）
• 页码范围: 123-126
• 页数: 4页
• 语种: 英文

摘要

Fibrillar conductive polyaniline/TiO2 (PANI/TiO2) nanocomposites with different TiO2 amount were synthesized with a template-free in situ polymerization method and characterized by transmission electron microscopy (TEM),X-ray diffraction (XRD),Fourier transform infrared spectroscopy (FT-IR) and conductivity measurement.The morphology determination shows that the PANI/TiO2 composite nanofibers are relatively uniform with the diameter and length in the range of 20-40 nm and 390-420 nm respectively.It also shows that the TiO2 of the composite is rutile crystalline and PANI has some degree of crystallinity.The IR measurement indicates that there is a strong interaction between the PANI and TiO2 nanoparticles,and it has a beneficial effect on the thermal stability of the composite nanofiber.The conductivity of PANI/TiO2 composites changes with TiO2 amount and reaches an optimum value of 2.86 S/cm at 11.1 wt% TiO2.