Synthesis of uniform polyaniline nanorods with the assistance of ethylene glycol
| Autor: | Li Ma, Jun Yan, Shu Zeng, Youqian Bai, Mengyu Gan, Wei Qiu, Zhitao Li |
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| Rok vydání: | 2014 |
| Předmět: |
Materials science
Nanostructure Bioengineering General Chemistry Conductivity Condensed Matter Physics Electrochemistry Atomic and Molecular Physics and Optics Colloid chemistry.chemical_compound Chemical engineering chemistry Modeling and Simulation Polymer chemistry Polyaniline General Materials Science Nanorod Fourier transform infrared spectroscopy Ethylene glycol |
| Zdroj: | Journal of Nanoparticle Research. 16 |
| ISSN: | 1572-896X 1388-0764 |
| Popis: | The uniform polyaniline (PANI) nanorods were prepared by the chemical method with the assistance of ethylene glycol (EG) medium. The morphology and structure of the PANI nanorods were characterized by SEM, TEM, FTIR, and UV–vis technique, and the effects of stirring on the morphology, structure, electrical conductivity, and electrochemical behavior of PANI were investigated. The results showed that as-synthesized PANI can be facilely dispersed in water and ethanol to form colloids. During the reaction, the H-bonding between molecules of PANI and EG plays a key role for the one-dimensional. In the presence of stirring, uniform PANI nanorods with diameters of 50–80 nm and length up to 400–800 nm can be obtained, and the aspect ratio is about 4. While in the absence of stirring, the aspect ratio of nanorods increases to more than 10, the diameter and length are 20–60 nm and 0.2–1 μm, respectively. In addition, the stirring can result in a higher doping level, conductivity, and degree of oxidation. Based on these results, a possible formation mechanism of PANI nanostructures is presented. |
| Databáze: | OpenAIRE |
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