In this section, you can access to the latest technical information related to the FUTURE project topic.

Fe doped ?-MnO2 nanoneedles as advanced supercapacitor electrodes

Fe-doped ?-MnO2 nanoneedles have been successfully synthesized via a hydrothermal method as electrode materials. The morphologies of as-synthesized samples were characterized by SEM and the role of Fe3+ as a structure directing agent on the formation of MnO2 nanoneedles was investigated. The electrode exhibits maximum specific capacitance of 627.3?F?g?1 at a current density of 1?A?g?1, far exceeding the capacity of MnO2 monomers. Furthermore, the capacitance retention was measured to be 94.2% after 3000 cycles, showing remarkable cycling stability. The activation of Fe3+ in ?-MnO2 nanoneedles attributes to the enhancement of electrode conductivity and electrochemical performance. In principle, the results indicate the potential application of our samples in supercapacitor electrodes.

» Author: Qi Gao, Jinxing Wang, Bin Ke, Jingfeng Wang, Yanqiong Li

» Reference: 10.1016/j.ceramint.2018.07.108

» Publication Date: 15/10/2018

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