Abstract
Supercapacitor has received intense interest due to its high-charge/discharge rate and high-power density. C/Fe2O3 layer with different C/Fe ratios were synthesized by a solution-based approach for supercapacitor application. The influence of synthesis conditions on their electrochemical performances was investigated. Cobalt was added into C/Fe2O3 and significant improved its performance. The optimal C/Fe2O3 sample gives a high specific capacitance of 85.3 F/g and the addition of Co3O4 further increase the capacitance of obtained C/Fe2O3/Co3O4 to 144.4 F/g at 5 A/g. This work demonstrates an efficient supercapacitor application of low-cost metal oxides and facile solution-based synthesis approach.
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This work was supported by the National Natural Science Foundation of China (grant numbers 51202186 and 51236007).
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The supplementary material for this article can be found at https://doi.org/10.1557/mrc.2016.60.
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Supplementary material
The supplementary material for this article can be found at https://doi.org/10.1557/mrc.2016.60.
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Su, J., Liu, S., Wang, J. et al. Solution-based synthesis of carbon-hematite composite thin films for high-performance supercapacitor applications. MRS Communications 6, 367–374 (2016). https://doi.org/10.1557/mrc.2016.60
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DOI: https://doi.org/10.1557/mrc.2016.60