Journal
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
Volume 32, Issue 12, Pages 16203-16214Publisher
SPRINGER
DOI: 10.1007/s10854-021-06167-z
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- Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, Malaysia [DF191026]
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The research focuses on the feasibility of carbon nanotubes (CNTs)-based polythiophene (PTH) composites in supercapacitor application, revealing that the 0.2 g CNT/PTH composite has lower electrical conductivity but higher energy density compared to the 0.5 g CNT/PTH composite.
Supercapacitors are widely used as electrical energy storage devices as a backup in industry power appliances and also in household appliances. The use of carbonaceous material in developing supercapacitors results in a lower energy storage capacity but is accompanied by the desire for higher stability. Meanwhile, the application of metal oxides or conducting polymers in supercapacitors provides a high storage capacity albeit with reduced stability. This research focuses on fabricating a hybrid of carbon nanotubes (CNTs)-based polythiophene (PTH) composites for feasibility in supercapacitor application. By analyzing the results, it was found that the 0.2 g CNT/PTH composite has electrical conductivity, sigma of 0.022 s/cm which was lower than 0.5 g CNT/PTH composite which had 0.038 s/cm of electrical conductivity. Besides that, the specific capacitance, CS of the 0.2 g CNTs, and 0.5 g CNTs with PTH composites were found to be 0.032 F/g and 0.057 F/g, respectively. The energy density, however, was found to be higher in 0.2 g CNT/PTH composite with a value of 0.0062 w/g whereas 0.0035 w/g for 0.5 g CNT/PTH composite. Based on the attained data, it can be concluded that the weight% of CNTs in the composite can be the preferred choice that does affect the overall performance of the supercapacitor.
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