The Effect of Metal Oxide Choice on the Pseudocapacitive Performance of Polyaniline Composites
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https://doi.org/10.69717/jaest.v6.i3.175Keywords:
Supercapacitors, PANI, Metal oxides, Cyclic voltammetryAbstract
In recent years, there is a dire need for energy, and energy storage appears to be a cost-effective solution to meet these needs. Supercapacitors are the most widely used for this purpose. Materials based on polyaniline (PANI) are соmmоnly usеd in supеrсаpасitоrs due tо their impressivе prоpеrtiеs, such as significant specific capacitance, eхсеllent еleсtrоchemicаl perfоrmanсе, cost–effective оf synthеsis. Hоwever, a significаnt drаwbaсk оf PANI is its limitеd durability. Tо addrеss this issue, PANI is often combined PANI with various materials. In this study, we investigate supercapacitor’s electrode materials by combining PANI with various metal oxides such as ZrO2, ZnO2, TiO2 and MnO2. Herein we used X-Ray Diffraction (XRD) and Fourrier Transform Infrared spectroscopy (FTIR) to confirm PANI/Metal oxides composite synthesis. The electrochemical performance was conducted by cyclic voltammetry. The PANI/ZrO2 exhibited a specific capacity of 563.5 F/g the highest comparing to the other composites, which make it more suitable for supercapacitors application. On the other hand, PANI/TiO2 demonstrated lower conductivity, therefore it could not be selected to this application.
Highlights
- Metal oxide were successfully combined with conducting polymers using simple and cost effective root.
- The combination of metal oxides with conducting polymers improve significantly the specific capacitance.
- The prepared composite electrode shows good electrochemical performance, making it highly suitable for supercapacitor applications.
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