The synthesis and electrochemical performance of NiCo2O4 embedded carbon nanofibers for high-performance supercapacitors |
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Authors: | Weijian Luo |
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Affiliation: | Department of Materials Science and Engineering, College of Materials, Xiamen University, Xiamen, China |
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Abstract: | Construction of transition metal oxides-based carbonaceous nanostructures has been regarded as one of the most effective strategies to prepare the electrodes for high-performance supercapacitors. In this work, NiCo2O4 embedded carbon nanofibers (NiCo2O4-CNFs) are synthesized by the combination of one-step electrospinning and following thermal treatment. The obtained NiCo2O4-CNFs are evaluated as electrodes for supercapacitors. The testing results indicate that the NiCo2O4-CNFs present high specific capacitance of 836 F g?1 (vs. 38.02 F g?1 for carbon nanofibers (CNFs)) at 5 A g?1, and outstanding cycling ability with 80.9% retention after 2000 cycle times. Such excellent performances benefit from the integration of electric double layer capacitors and pseudocapacitors. This kind of NiCo2O4-embedded carbon nanofibers can serve as a promising candidate for electrode materials for supercapacitors. |
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Keywords: | Carbon nanofibers electrospinning nickel cobaltate supercapacitor |
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