Urchin-like MnO2 capped ZnO nanorods as high-rate and high-stability pseudocapacitor electrodes

作者：Li, Wenyao; He, Guanjie; Shao, Jiajia; Liu, Qian; Xu, Kaibing; Hu, Junqing^*; Parkin, Ivan P.

来源：Electrochimica Acta, 2015, 186: 1-6.

DOI：10.1016/j.electacta.2015.10.140

• ZnO@MnO2
• core@shell
• high-rate
• high-stability
• pseudocapacitor electrode

Urchin-like ZnO@MnO2 core@shell nanostructures were synthesized via two step easy-controlled hydrothermal methods intercalated with a carbonization process. As a powder electrode, it showed improved electrochemical properties (similar to 59.4% retention of its initial capacitance even when current density increased 50 times and 111.3% of its original capacitance after 5000 long-term cycles) compared with bare MnO2 nanoflakes and many reported binder-free ZnO@MnO2 electrodes, which could be considered as high-rate and high-stability pseudocapacitor electrodes.

• 出版日期2015-12-20
• 单位东华大学; 上海工程技术大学