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Title: | Performance of Graphene Oxide Doped Polyaniline Composite Electrodes for Energy Storage: Effects of In-Situ Synthesis |
Authors: | Muazzin Bin Mupit Muhammad Remanul Islam Mohd Asyadi Azam Md Gulam Smdani Rosli Mohd Yunus Amin Firouzi Ong Siew Kooi (UniKL MITEC) |
Keywords: | Polyaniline/Graphene oxide, Supercapacitors Electrodes In-situ polymerization Composites |
Issue Date: | 12-Jul-2023 |
Abstract: | Two different synthesis processes, in-situ polymerization and ex-situ polymerization process, were implied to identify the impact of these processes on the properties of the graphene oxide (GO) doped conductive polyaniline (PANi)-based electrode materials. This study focused on the improvement of various properties of PANi/GO composite materials produced through the in-situ polymerization process instead of the ex-situ polymerization process. To compare the performance of electrochemical and physical properties PANi/GO electrode materials produced via in-situ and ex-situ polymerization process, several characterization techniques were used. Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) were performed to observe structural properties. Cyclic voltammetry and galvanostatic Charge–Discharge analysis were conducted to investigate the electrochemical properties of electrodes. Specific capacitance of PANi/GO electrodes was found 63.6% higher for in-situ polymerization compared to the electrodes prepared using ex-situ polymerization process. This high performance was governed by the proper alignment of GO into polyaniline. In the in-situ polymerization process, the interaction of polyaniline is strong with the surface functional groups of GO sheets which results in a good physical mixture between polyaniline and GO particles. In-situ polymerization technique can be effective to develop polymer-based electrode materials for high performance supercapacitors. |
URI: | http://hdl.handle.net/123456789/28086 |
Appears in Collections: | Journal Articles |
Files in This Item:
File | Description | Size | Format | |
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9 Performance of Graphene Oxide Doped Polyaniline Composite Electrodes for Energy Storage- Effects of In-Situ Synthesis.pdf | 307.77 kB | Adobe PDF | View/Open |
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