Abstract
Pristine carbon felt is activated and functionalized through a cost-effective, eco-friendly method by immersion in a commercial 5 wt% hypochlorite solution. Electrochemical analyses, including cyclic voltammetry, galvanostatic charge–discharge tests, capacitance, and impedance measurements at 1 Hz, reveal that the activated carbon felt exhibits a twenty-fold enhancement in performance compared to its pristine counterpart. Pristine and activated carbon felt are characterized using scanning electron microscopy, X-ray photoelectron spectroscopy, contact angle measurement, and water uptake tests confirming the significant changes in material properties. To further validate the activation process, polypyrrole is galvanostatically electrodeposited on both pristine and activated carbon felts, with their electrochemical behaviors serving as a model system. The findings indicate a substantial improvement of activated carbon felt, with fourth times increase in capacity, highlighting the potential for advanced applications.
Published Version
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