Facile Synthesis of Nitrogen‐Doped Mesoporous Hollow Carbon Nanospheres for High‐Performance Supercapacitors

• DOI: 10.1002/celc.201800597
• Publication Date: 2018-05-29T14:09:11Z
• Authors: Zhongbing Wang; Hongwen Qiang; Zihao Zhu; Jinpeng Liu; Chunnian Chen; Dawei Zhang
• Keywords: Polypyrrole; Carbon fibers; Template method pattern

Abstract We report the facile preparation of nitrogen‐doped mesoporous hollow carbon nanospheres (N‐MHCNS) by directly carbonizing polypyrrole that are derived from in situ polymerization. Here, we use a novel soft template (PMMA‐PBMA‐PMAA) as core. At 700 °C, obtained N‐MHCNSs (denoted N‐MHCNS700) show superior electrochemical performance. In 1 M HCl electrolyte, N‐MHCNS700 exhibits capacitance high 275.5 F g −1 at current density A and rate capability, retaining 54.4 % initial 20 . addition, specific is approximately 100 retained 10 after 5000 cycles, indicating amazing stable cycling The excellent performance can be amorphous graphitic carbon, nanosphere structure, properties, nitrogen doping effect.