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首页> 外文期刊>Chemistry: A European journal >A C-N Coupling Polymerization on Ice-Surface towards Decimeter-Sized 2D Covalent Materials with High Catalytic Activity for Water-Splitting
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A C-N Coupling Polymerization on Ice-Surface towards Decimeter-Sized 2D Covalent Materials with High Catalytic Activity for Water-Splitting

机译：具有高催化活性的冰表面抗冰表面耦合聚合，具有高催化活性的水分解

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摘要

Compared to other solid templates (metal, ceramic, carbon, etc.), polymerization on ice-surface has many advantages. However, the popularity of this method has been impeded by the lack of appropriate polymerization reactions. To date, only few oxidation polymerizations have been reported to occur on ice-surface, and unfortunately they can only produce supramolecular films rather than fully covalent films. Herein for the first time, 2D covalent materials have been created on ice-surface even at -16°C through a C-N coupling polymerization, and two free-standing 2D polyarylamines (2DPA)s were synthesized. Both 2DPAs have decimeter-size and nanometer thickness. This study provides the first polymerization reaction to synthesize 2D covalent materials on icesurface, which can be used to fabricate materials/tools/ robots with specific 2D structure by copying ice morphologies. Furthermore, both 2DPAs exhibit higher hydrogen evolution reaction activity than many metal-free catalysts and even some metal-based catalysts, so this study also provides further insight for the development of metal-free catalysts for water-splitting.
机译：与其他固体模板（金属，陶瓷，碳等）相比，冰表面上的聚合具有许多优点。然而，这种方法的普及被缺乏适当的聚合反应阻碍。迄今为止，据报道，只有少量氧化聚合在冰面上发生，并且不幸的是它们只能产生超分子膜而不是完全共价薄膜。本文首次，即使在-16℃通过C-N偶联聚合，也在冰面上在冰面上产生了2D共价材料，并且合成了两个独立的2D多芳基团（2DPA）。两种2DPA都具有排入量和纳米厚度。该研究提供了第一聚合反应，以合成ICESURFFURE上的2D共价材料，其通过复制冰形态来制造具有特异性2D结构的材料/工具/机器人。此外，2DPA均具有比许多无金属催化剂甚至一些金属基催化剂具有更高的氢进化反应活性，因此该研究还提供了进一步了解用于水分解的无金属催化剂的开发。

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  • 来源
    《Chemistry: A European journal》 |2019年第61期|共5页
  • 作者

    Ming Cheng; Ming Li;

  • 作者单位

    Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules Hubei Key Laboratory of Polymer Materials College of Chemistry and Chemi;

    Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules Hubei Key Laboratory of Polymer Materials College of Chemistry and Chemi;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 应用化学;
  • 关键词

    2D covalent material; C-N coupling; hydrogenevolution reaction; ice-template; polymerization;

    机译：2D共价材料;C-N耦合;氢化反应;冰模板;聚合;

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