Inherent N,O-containing carbon frameworks as electrode materials for high-performance supercapacitors

• DOI: 10.1039/c6nr05146d
• Publication Date: 2016-08-11T04:00:12Z
• Authors: Fangyuan Hu; Jinyan Wang; Shui Hu; Linfei Li; Gang Wang; Jieshan Qiu; Xigao Jian
• Keywords: Heteroatom; Carbon fibers

N,O-Containing micropore-dominated materials have been developed successfully via temperature-dependent cross-linking of 4,4'-(dioxo-diphenyl-2,3,6,7-tetraazaanthracenediyl)dibenzonitrile (DPDN) monomers. By employing a molecular engineering strategy, we designed and synthesized series porous heteroatom-containing carbon frameworks (PHCFs), in which nitrogen oxygen heteroatoms are distributed homogeneously throughout the whole framework at atomic level, can ensure stability its electrical properties. The as-made PHCFs@550 exhibits high specific capacitance 378 F g-1, with an excellent long cycling life, including (capacitance retention ca. 120% over 20 000 cycles). Moreover, successful preparation PHCFs provides new insights for fabrication oxygen-containing electrode from readily available components facile route.