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Synthesis and characterization of PANI nanostructures for supercapacitors and photoluminescence |
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| Authors: | Venkata Subba Reddy Channu Rudolf Holze Bobba Rambabu Rajamohan R Kalluru |
| Affiliation: | 1. Institut f??r Chemie, AG Elektrochemie, Technische Universit?t Chemnitz, 09107, Chemnitz, Germany 2. Solid State Ionics and Surface Sciences Lab, Department of Physics, Southern University and A&M College, Baton Rouge, 70813, USA 3. KITE College of Professional Engineering Sciences, Jawaharlal Nehru Technological University, Shabad, 509217, India |
| Abstract: | Polyaniline structures were synthesized through a chemical method using citric acid and oxalic acid as carriers and 5???m size ??-alumina particles as a template. The obtained nano-size pristine products were characterized using X-ray diffraction, infrared spectroscopy, scanning electron microscopy, optical absorption spectroscopy, photoluminescence spectroscopy and cyclic voltammetry (CV). Nanofibrous PANI was obtained with oxalic acid, nanoparticles with oxalic acid and ??-alumina, net-like nanostructures with citric acid and spherical nanoparticles with citric acid and ??-alumina. The high intensity photoluminescence of PANI prepared with oxalic acid as a carrier is possibly due to greater chances of exciton formation resulting from increased ??-electron mobility. Electrochemical studies of PANI electrodes in 2.0?M H2SO4 were carried out at various scan rates. The CVs showed rectangular shape with added pronounced oxidation and reduction peaks. |
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