Hollow Carbon Microspheres/MnO2 Nanosheets Composites: Hydrothermal Synthesis and Electrochemical Behaviors

Hollow Carbon Microspheres/MnO2 Nanosheets Composites: Hydrothermal Synthesis and Electrochemical Behaviors

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Fan et al. reported a new method for the synthesis of hollow carbon microspheres/manganese dioxide nanosheets (micro-HC/nano-MnO2) composite by an in situ self-limiting deposition method under hydrothermal condition for supercapacitor application. The morphology characterizations reveal that MnO2 nanosheets homogeneously grow onto the surface of micro-HC to form a loose-packed microstructure.

The composite with high-rate transportation of both electrolyte ions and electrons throughout the electrode matrix has superior electrochemical utilization of MnO2, resulting in the excellent electrochemical performance. The micro-HC/nano-MnO2 electrode presents a high capacitance of 239.0 F g-1 at a current density of 5 mA cm-2, which is a strong promise for high-rate electrochemical capacitive energy storage applications.

Original article citation

Hui-li Fan, Fen Ran, Xuan-xuan Zhang, Hai-ming Song, Xiao-qin Niu, Ling-bin Kong, Long Kang, “Hollow Carbon Microspheres/MnO2 Nanosheets Composites: Hydrothermal Synthesis and Electrochemical Behaviors”, Nano-Micro Lett. 7(1), 59-67 (2015). doi:10.1007/s40820-014-0019-z

A Highlight from Yanzhen Guo for NMSTR.

 

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