Ag/AgCl-decorated polypyrrole nanotubes and their sensory properties |
| |
| Authors: | Xiaoming Yang Liang Li Ye Zhao |
| |
| Affiliation: | 1. College of Chemistry, Chemical Engineering and Materials Sciences, Soochow University, Shizi Street, Suzhou 215123, PR China;2. Key Laboratory for Green Chemical Process of Ministry of Education, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, PR China |
| |
| Abstract: | A facile method to prepare Ag/AgCl-decorated polypyrrole nanotubes (PPy/Ag–AgCl nanocomposites) has been demonstrated. PPy nanotubes were assembled on the reactive self-degraded template of a fibrillar complex of FeCl3 and methyl orange (MO). By introducing PPy nanotubes into AgNO3 solution, Ag and AgCl nanoparticles could be uniformly decorated onto the PPy nanotube surface in situ by the reaction of PPy and AgNO3. The morphology and structure of the nanocomposites were characterized by transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The possible application of PPy/Ag–AgCl nanocomposites as a vapor sensor has also been reported. The responses of these nanocomposites were observed to be reversible by monitoring the change in the resistance of the nanocomposites upon exposure to ammonia vapor. PPy/Ag–AgCl composite nanotubes sensors showed enhanced chemiresistor sensitivity compared with PPy nanotubes. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
