AI Article Synopsis
- In a 0.010 m HCl solution, polyaniline (PANI) agglomerates were converted into uniform nanofibers with diameters of 46-145 nm using superparamagnetic Fe3O4 microspheres in a magnetic field.
- The morphological evolution of PANI showed that nanofibers formed from a PANI coating on the Fe3O4 microsphere chains, with the magnetic field helping to ensure a narrow diameter distribution and preventing secondary growth.
- Attempts to create PANI nanofibers at other HCl concentrations failed due to an improper amount of aniline cations.
Article Abstract
In a 0.010 m HCl solution, we successfully transformed irregular polyaniline (PANI) agglomerates into uniform PANI nanofibers with a diameter of 46-145 nm and a characteristic length on the order of several microns by the addition of superparamagnetic Fe3 O4 microspheres in a magnetic field. The PANI morphological evolution showed that the PANI nanofibers stemmed from the PANI coating shell synthesized on the surface of the Fe3 O4 microsphere chains. It was found that the magnetic field could optimize the PANI nanofibers with a narrow diameter size distribution, and effectively suppressed secondary growth. When compared with other microspheres (like silica and polystyrene), only the use of superparamagnetic Fe3 O4 microspheres resulted in the appearance of PANI nanofibers. Attempts to form these high-quality PANI nanofibers in other concentrations of HCl solution were unsuccessful. This deficiency was largely attributed to the inappropriate quantity of aniline cations.
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