A ternary composite with manganese dioxide nanorods and graphene nanoribbons embedded in a polyaniline matrix for high-performance supercapacitors

作者：Wu, Tong; Wang, Chaonan; Mo, Yao; Wang, Xinran; Fan, Jinchen^*; Xu, Qunjie^*; Min, Yulin^*

来源：RSC Advances, 2017, 7(53): 33591-33599.

DOI：10.1039/c7ra05443b

• EFFICIENT PHOTODRIVEN REDUCTION
• DOUBLE-LAYER CAPACITORS
• ELECTROCHEMICAL PERFORMANCE
• CARBON NANOTUBES
• ENERGY-STORAGE
• HYDROTHERMAL SYNTHESIS
• OXIDE
• FABRICATION
• NANOCOMPOSITES
• NANOSTRUCTURE

A new ternary composite of manganese dioxide (MnO2), polyaniline (PANI) and graphene nanoribbons (GNRs) has been fabricated through a two-step polymerization process. With manganese dioxide nanorods and graphene nanoribbons embedded in the PANI matrix, the MnO2/GNRs/PANI ternary composites with 3-dimensional porous structures exhibited higher specific capacitance and better charge-discharge cycling performance than that of MnO2 and MnO2/GNRs binary composites in supercapacitors. The specific capacitance of the MnO2/PANI/GNRs ternary composite can be achieved at 472 F g(-1). After 5000 cycles, the specific capacitance with 79.7% of the initial capacitance can be preserved. The enhanced specific capacitance and cycle life implies the structural stability of MnO2/GNRs/PANI ternary composites and the synergistic effect between MnO2, GNRs and PANI.

• 出版日期2017
• 单位上海电力大学