Enhanced tailored of thermal stability, optical and electrochemical properties ofPANImatrix containingAl2O3hybrid materials synthesized through in situ polymerization

Hybrid materials based on Al2O3, modified with polyaniline have been obtained. Samples have been synthesized by chemical polymerization of aniline monomer with Al(2)O(3)nanoparticles, the ammonium persulfate have been used as oxidizers. The resulting samples were fully characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Fourier transform infrared spectrometer (FTIR), scanning electron microscopy (SEM), and UV-vis spectroscopies, which have shown that polymerizations have been carried out. Importantly, this work represents an efficacious way of setting the optical properties of the synthesized nanocomposites, obtained by adjusted the amounts of Al(2)O(3)during polymerization, the analysis shows that the lowest evaluate of optical band gap is 2.88 eV for PANI@Al2O3(4%) compared to PANI@Al2O3(2%), and PANI@Al2O3(6%) with 2.95 and 2.91 eV, respectively. Good electroactivity response where achieve two pairs oxidation/reduction with improved thermal stability for the synthesized hybrid materials have been observed.

Automated summary

Hybrid materials based on Al2O3 modified with polyaniline have been successfully synthesized through chemical polymerization. Adjusting the amount of Al2O3 during the polymerization process allows for setting the optical properties of the synthesized nanocomposites, resulting in different optical band gap values. The synthesized hybrid materials show good electroactivity response and improved thermal stability.