Synthesis and characterization of mesoporous nickel oxide for electrochemical capacitor |
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Authors: | Mao-Wen Xu Shu-Juan Bao Hu-Lin Li |
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Affiliation: | (1) College of Chemistry and Chemical Engineering of Lanzhou University, Lanzhou, 730000, People’s Republic of China |
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Abstract: | A mesoporous electrochemical active material NiO with face center cubic structure has been synthesized using supramolecular as template and urea as hydrolysis-controlling agent. The synthesized product was characterized physically by thermogravimetric analysis, X-ray diffraction, transmission electron microscopy, and Brunauer–Emmett–Teller-specific surface area measurement. Electrochemical characterization was performed using cyclic voltammetry and chronopotentiometry in 6 mol/l KOH aqueous solution electrolyte. A specific capacitance of approximately 327 F/g was obtained by annealing the sample at 350 °C. To get a better understanding of the effect of supramolecular template on improving the structure property and electrochemical performance, a compared experiment was also carried out in this work. |
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Keywords: | Mesoporous NiO Electrochemical capacitors (ECs) |
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