A novel composite for energy storage devices: core-shell MnO2/polyindole nanotubes supported on reduced graphene oxides

作者：Wang, Weigang; Ren, Guohong; Wang, Mingqian; Liu, Yajun; Wu, Shishan^*; Shen, Jian^*

来源：Journal of Materials Science: Materials in Electronics , 2018, 29(7): 5548-5560.

DOI：10.1007/s10854-018-8523-4

• FACILE SYNTHESIS
• PERFORMANCE
• CARBON
• MNO2
• CAPACITANCE
• CATHODE
• HYBRID
• POWER

Nanomaterials for energy storage and transfer devices like supercapacitors and batteries have been widely researched on the purpose of obtaining desirable performances. A novel hybrid nanocomposite based on tubular MnO2, polyindole and reduced graphene oxides was synthesized by a simple method and the optimal mass ratio of each raw material was researched in this work. This sandwich-like structure caused by RGO sheets and coaxial MnO2/polyindole nanotubes results in fast electron and ions transfer and high contacting area. This ternary composite exhibits a satisfactory electrochemical performance with large specific capacitance of 522.5 F g(-1) at a scan rate of 10 mV s(-1) and outstanding cycling stability of 97.65% capacitive retention after 5000 cycles at a current density of 10 A g(-1). Therefore, MnO2/PIn/RGO composite owns promising applications in high-performance supercapacitors and other energy storage devices.

• 出版日期2018-4
• 单位南京大学