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Facile synthesis of porous Co3O4 nanoplates for supercapacitor applications

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Abstract

Porous tricobalt tetraoxide (Co3O4) nanoplates with large aspect ratio have been obtained by annealing Co(OH)2 precursor nanoplates synthesized by a facile reflux method without the need for any template or surfactant. After the heat treatment, the as-obtained phase-pure Co3O4 nanoplates with a well-retained structure were applied as the electrode material for supercapacitors, and the sample exhibits excellent performance with a high specific capacitance of 225 F g−1 after 2000 charge–discharge cycles at 2 A g−1, corresponding to a retention of 97% of the initial capacitance.

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Authors and Affiliations

  1. Anhui Key Laboratory of Spin Electron and Nanomaterials, School of Chemistry and Chemical Engineering, Suzhou University, Suzhou, Anhui, 234000, China

    TAO GENG, LI ZHANG, HONGYAN WANG, KEYING ZHANG & XIA ZHOU

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  1. TAO GENG
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  2. LI ZHANG
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  3. HONGYAN WANG
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  4. KEYING ZHANG
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  5. XIA ZHOU
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Correspondence to TAO GENG.

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GENG, T., ZHANG, L., WANG, H. et al. Facile synthesis of porous Co3O4 nanoplates for supercapacitor applications. Bull Mater Sci 38, 1171–1175 (2015). https://doi.org/10.1007/s12034-015-0997-6

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  • DOI: https://doi.org/10.1007/s12034-015-0997-6

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