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Synthesis and characterization of mesoporous nickel oxide for electrochemical capacitor

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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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Acknowledgement

The authors are thankful for the support provided by the National Nature Science Foundation of China (no. 60471014).

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Authors and Affiliations

  1. College of Chemistry and Chemical Engineering of Lanzhou University, Lanzhou, 730000, People’s Republic of China

    Mao-Wen Xu, Shu-Juan Bao & Hu-Lin Li

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  1. Mao-Wen Xu
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  2. Shu-Juan Bao
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  3. Hu-Lin Li
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Correspondence to Hu-Lin Li.

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Xu, MW., Bao, SJ. & Li, HL. Synthesis and characterization of mesoporous nickel oxide for electrochemical capacitor. J Solid State Electrochem 11, 372–377 (2007). https://doi.org/10.1007/s10008-006-0155-6

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  • DOI: https://doi.org/10.1007/s10008-006-0155-6

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