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Nanoscale. 2016 Sep 15;8(36):16323-16331.

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

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Liaoning Province Engineering Centre of High Performance Resins, Dalian University of Technology, Dalian, China and State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, China.
Carbon Research Laboratory, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology, Dalian 116024, China.


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 have designed and synthesized a series of porous heteroatom-containing carbon frameworks (PHCFs), in which nitrogen and oxygen heteroatoms are distributed homogeneously throughout the whole framework at the atomic level, which can ensure the stability of its electrical properties. The as-made PHCFs@550 exhibits a high specific capacitance of 378 F g-1, with an excellent long cycling life, including excellent cycling stability (capacitance retention of ca. 120% over 20‚ÄČ000 cycles). Moreover, the successful preparation of PHCFs provides new insights for the fabrication of nitrogen and oxygen-containing electrode materials from readily available components via a facile route.


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