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| Naji, M. |
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| Ertürk, Emre |
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| Azam, Siraj |
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| Azevedo, Nuno Monteiro |
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Singh, Mandeep
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Publications (6/6 displayed)
- 2023Chemically Oxidized Carbon Paper as a Free‐Standing Electrode for Supercapacitor: An Insight into Surface and Diffusion Contributioncitations
- 2023Waste Coir Nanofiller Fused Gallus-Gallus Fibres Reinforced PMCcitations
- 2022Artificial Intelligence Optimization of Turning Parameters of Nanoparticle-Reinforced P/M Alloy Toolcitations
- 2020Laboratory study on subgrade fluidization under undrained cyclic triaxial loadingcitations
- 2020The modified magnetodielectric response in KNN-CZFMO based particulate multiferroic composite systemcitations
- 2018Oxygen-deficient photostable Cu2O for enhanced visible light photocatalytic activitycitations
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article
Chemically Oxidized Carbon Paper as a Free‐Standing Electrode for Supercapacitor: An Insight into Surface and Diffusion Contribution
Abstract
<jats:title>Abstract</jats:title><jats:p>Carbon paper has been synthesized by paper making process followed by composite formation, and further chemically oxidized by immersing into a mixture of sulphuric acid and potassium dichromate to be used as an electrode for supercapacitor applications. XRD and Raman spectra were used to analyze the structure, and the defects in the samples respectively, in due course of oxidation. FESEM images revealed the morphology of oxidized samples to be rougher, which contributes towards increased active sites for reaction. The sample (COCP‐60) optimized via electrochemical studies, was further tested in various electrolytes to study the electrode/electrolyte interaction. It delivered a highest areal capacitance of 6.02 F/cm<jats:sup>2</jats:sup> (231.5 F/g) in acidic electrolyte at a current density of 5 mA/cm<jats:sup>2</jats:sup> (0.19 A/g). This findings were further corroborated by surface and diffusion contribution studies wherein it was found that diffusion is more profound with acidic electrolyte. The supercapacitor device fabricated with COCP‐60 electrode delivered an energy density of 0.41 Wh/cm<jats:sup>2</jats:sup> at 2.83 W/cm<jats:sup>2</jats:sup> power density with coulombic efficiency of 98 %, and cyclic stability of ∼90 % for over 5000 cycles.</jats:p>