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The porous carbon materials derived from biomass have become the most promising candidates for electrochemical energy conversion and storage due to their renewability and sustain ability. Herein, we present a simple activation and carbonization approach to successfully fabricate a novel tamarisk root-based honeycomb-like porous carbon (TRHPC) by using biomass tamarisk roots as carbon precursor and...
The design of composited porous carbon-based electrode materials is keyed to improve the electrochemical performance for supercapacitors. Here, the natural carrot is used as a precursor to prepare porous carbon skeletons (CCs). Three different anthraquinones: anthraquinone (AQ), amino-anthraquinone (1-AAQ), and 2-aminoanthraquinone (2-AAQ) are used to modify the carbon skeletons with absorption. The...
Nitrogen-doped porous activated carbons (N-PHACs) have been successfully synthesized using pomegranate husk as carbon precursor via ZnCl2-activation carbonization and subsequent urea-assisted hydrothermal nitrogen-doping method. The obtained N-PHACs possesses abundant mesoporous structure, high specific surface area (up to 1754.8 m2 g−1), pore volume (1.05 cm3 g−1), and nitrogen-doping content (4...
A high energy density asymmetric supercapacitor (ASC) is assembled utilizing polyaniline (PANI) nanotubes as the positive electrode and tungsten trioxide (WO 3 ) rods as the negative electrode. The PANI nanotubes are synthesized via a simple chemical template-free method in the presence of D-tartaric acid as the dopant, and ammonium persulfate as the oxidant, and the WO 3...
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