Abstract
Cr-doped MnO2 nanostructure has been fabricated via a facile hydrothermal method and its morphology and electrochemical properties was discussed systematically. In this process, flower-like MnO2 transforms into the self-assembled orchid structure under the influence of Cr-doped. Moreover, electrochemical behaviors of the Cr-doped MnO2 nanostructure electrode were clarified by cyclic voltammograms, galvanostatic charge/discharge tests and electrochemical impedance spectroscopy, which shows a high specific capacitance of 202.5 F g−1 and superior cycling stability (6.8 % capacitance decay after 1000 cycling test). These remarkable and excellent results prove it has a great potential of application in future energy storage device.
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Acknowledgments
The authors gratefully acknowledge the financial support to this work from the National Natural Science Foundation of China under Grant Number 11332013, the fund of Chongqing University’s Large-scale Equipment (No. 2013121568), and Graduate Student Scientific Research Innovation Project of Chongqing (No. CYS14011). Fundamental Research Funds for Central Universities (No. 106112015CDJXY130013).
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Zhao, S., Liu, T., Zhang, Y. et al. Cr-doped MnO2 nanostructure: morphology evolution and electrochemical properties. J Mater Sci: Mater Electron 27, 3265–3270 (2016). https://doi.org/10.1007/s10854-015-4154-1
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DOI: https://doi.org/10.1007/s10854-015-4154-1