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Issue 25, 2016
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A two-dimensional conjugated polymer framework with fully sp2-bonded carbon skeleton

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Abstract

The synthesis of crystalline two-dimensional (2D) covalent organic frameworks (COFs) with fully unsaturated carbon–carbon backbones via a solution approach remains a great challenge. In this work, we report the first example of an olefin-linked 2D conjugated COF using a Knoevenagel polycondensation reaction of 1,4-phenylene diacetonitrile and three armed aromatic aldehyde. The resulting 2D poly(phenelyenevinylene) framework (2DPPV) possesses a sheet morphology, and a crystalline layered structure featuring a fully sp2-bonded carbon skeleton with pendant cyanide groups. Its unique alternating structure with a serrated configuration has been essentially evaluated using HR-TEM TEM analysis, nitrogen physisorption measurements, PXRD studies and theoretical simulations. Upon thermal and activation treatments, the as-prepared 2DPPV can be facilely converted into porous carbon nanosheets with large specific surface areas of up to 880 m2 g−1 which exhibit an excellent electrochemical performance as supercapacitor electrodes and electrocatalysts for the oxygen reduction reaction. This represents an economic non-template approach to 2D porous carbon materials for energy-related applications.

Graphical abstract: A two-dimensional conjugated polymer framework with fully sp2-bonded carbon skeleton

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Publication details

The article was received on 30 Mar 2016, accepted on 07 May 2016 and first published on 09 May 2016


Article type: Paper
DOI: 10.1039/C6PY00561F
Citation: Polym. Chem., 2016,7, 4176-4181
  • Open access: Creative Commons BY-NC license
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    A two-dimensional conjugated polymer framework with fully sp2-bonded carbon skeleton

    X. Zhuang, W. Zhao, F. Zhang, Y. Cao, F. Liu, S. Bi and X. Feng, Polym. Chem., 2016, 7, 4176
    DOI: 10.1039/C6PY00561F

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