The fabrication of hierarchical nanostructured graphene/PPy fiber composites and its electrochemical properties

• DOI: 10.1007/s11581-020-03517-5
• Publication Date: 2020-03-12T13:02:57Z
• Authors: Junhui Zheng; Feng Miao; Ying Peng; Fang Miao
• Keywords: 02 engineering and technology; 0210 nano-technology; 7. Clean energy

The graphene/PPy fiber nanocomposites were synthesized via a facile one-step solvothermal method. Moved by electrostatic interaction and hydrogen bonding between the tetra-functional NiPcTs and PPy chain, a self-sorting mechanism acts to align the PPy chains to form one-dimensional PPy nanofibers on graphene. The in situ grown nanostructure possesses a good interconnectivity and porosity facilities. The well-designed microstructure of the composites achieves a synergistic effect between the graphene and PPy and shows a good electrochemical performance for supercapacitors of 316 F g−1 even at a high current density of 5 A g−1.