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Two couples of narrow-porous carbons in the form of particulates (PAC) and fibers (ACF) have been prepared by one step carbonization/activation of pitch-based precursors in carbon dioxide or ammonia atmosphere. The activated carbons are assessed as electrode material of EDL capacitor operating in 6molL−1 KOH and 0.5molL−1K2SO4 aqueous solutions. Electrochemical measurements show distinctly improved...
Various coal and pitch-derived carbonaceous materials were activated for 5h at 800 o C using potassium hydroxide and 1:4 component ratio. Porosity development of the resultant activated carbons (ACs) was assessed by N 2 sorption at 77K and their capability of the charge accumulation in electric double layer was determined using galvanostatic, voltammetric and impedance spectroscopy...
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