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Facile Solvothermal Synthesis Ni(OH)2 Nanostructure for Electrochemical Capacitors

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Abstract

Nickel hydroxide nanosheets were successfully synthesized by facile solvothermal method without any template. The structure and morphology of the as-prepared sample were characterized by X-ray diffraction, Fourier transform infrared spectroscopy and transmission electron microscopy. The observations revealed the formation of hexagonal phase β-Ni(OH)2 nanosheets with an average diameter of about 100–120 nm. Electrochemical studies were carried out using cyclic voltammetry and galvanostatic charge–discharge tests, respectively. A maximum specific capacitance of 2,342 F g−1, which is the highest reported for a β-Ni(OH)2 electrode, could be achieved in 6 mol L−1 KOH electrolyte within the potential range of 0–0.50 V (vs. SCE) for the obtained β-Ni(OH)2 electrode at 0.4 A g−1, suggesting its potential application in the electrode material for electrochemical capacitors.

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Acknowledgments

The work was financially supported by the Natural Science Foundation of China (30871894) and the Outstanding Young Scientists Incentive foundation of Shandong Province (BS2010NJ007).

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Authors and Affiliations

  1. College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, 266109, People’s Republic of China

    Liangyu Gong, Xiaohong Liu & Linghao Su

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  1. Liangyu Gong
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  2. Xiaohong Liu
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  3. Linghao Su
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Correspondence to Liangyu Gong.

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Gong, L., Liu, X. & Su, L. Facile Solvothermal Synthesis Ni(OH)2 Nanostructure for Electrochemical Capacitors. J Inorg Organomet Polym 21, 866–870 (2011). https://doi.org/10.1007/s10904-011-9519-1

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  • DOI: https://doi.org/10.1007/s10904-011-9519-1

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