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A comparative study of various hydrochar-based porous carbons was carried out. These porous carbons, synthesized from biomass by H 3 PO 4 , NaOH and KOH activation, were examined for use in supercapacitors. The micropores and mesopores had been introduced into the hydrochar simultaneously. Porous carbons exhibited different electrochemical performance due to the difference of their...
The novel electrochemical supercapacitor anode material hydrochar/nickel composite was prepared from biomass via a facile method in this paper. Hydrochar was synthesized by sulfuric acid hydrolysis solution of rice husk. The nickel, acted as graphitization catalyst, effectively changed the graphitization degree of hydrochar. Then the hydrochar/nickel effectively improved the specific capacity of hydrochar...
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