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首页> 外文期刊>RSC Advances >Controllable synthesis of mesoporous carbon nanoparticles based on PAN-b-PMMA diblock copolymer micelles generated via RAFT polymerization as electrode materials for supercapacitors
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Controllable synthesis of mesoporous carbon nanoparticles based on PAN-b-PMMA diblock copolymer micelles generated via RAFT polymerization as electrode materials for supercapacitors

机译：基于PAN-B-PMMA二嵌段共聚物胶束通过筏聚合产生的基于PAN-B-PMMA二嵌段共聚物胶束的可控合成作为超级电容器的电极材料

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摘要

Mesoporous carbon nanoparticles (MCNs) were prepared through a series of annealing procedures using well-controlled diblock copolymer micelles as precursors. The micelles were prepared from poly(acrylonitrile)-block-poly(methylmethacrylate) (PAN-b-PMMA), and synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization. The RAFT-controlled synthesis of block copolymer, PAN-b-PMMA was conducted either in solution or emulsion conditions. It was found that micelles with well-defined morphology could be directly formed from the emulsion polymerization. The as-synthesized micelles containing hydrophilic PAN corona as the carbon source and hydrophobic PMMA core as the sacrificing template underwent a microphase-separation process to form a nanostructure at 250 degrees C, followed by carbonization at 800 degrees C to afford MCNs. What's more, the MCNs based supercapacitor exhibited a good capacitance value of 220 F g(-1) and an excellent cycling performance of 91% capacitance retention after 10 000 cycles. The as-prepared MCNs are envisioned to provide broad practical applications in the fields of energy storage and nanotechnology.
机译：使用良好控制的二嵌段共聚物胶束作为前体，通过一系列退火程序制备介孔碳纳米颗粒（MCN）。胶束由聚（丙烯腈） - 伯-Plock-聚（甲基丙烯酸甲酯）（泛丙烯酸甲酯）（Pan-B-PMMA）制备，并通过可逆添加 - 碎片链转移（筏）聚合合成。嵌段共聚物的RAFT控制的合成，在溶液或乳液条件下进行PAN-B-PMMA。发现具有明确定义的形态学的胶束可以由乳液聚合直接形成。作为碳源和疏水性PMMA核心的含有亲水盘电晕作为牺牲模板作为碳源和疏水性PMMA核心，在250℃下形成纳米结构，然后在800℃下碳化以提供MCN。更重要的是，基于MCN的超级电容器表现出220 f G（-1）的良好电容值，并且在10 000个循环后的91％电容保留的优异循环性能。设想，以制备的MCN为在储能和纳米技术领域提供广泛的实际应用。

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  • 来源
    《RSC Advances》 |2016年第105期|共8页
  • 作者

    Zhang Aitang; Li Aihua; Wang Yao; Liu Mengli; Ma Hongjing; Song Zhongqian; Liu Jingquan;

  • 作者单位

    Qingdao Univ Coll Mat Sci &

    Engn Inst Graphene Appl Technol Innovat Lab Fiber Mat Growing Base State Key Lab Collaborat Innovat Ctr Qingdao 266071 Peoples R China;

    Qingdao Univ Coll Mat Sci &

    Engn Inst Graphene Appl Technol Innovat Lab Fiber Mat Growing Base State Key Lab Collaborat Innovat Ctr Qingdao 266071 Peoples R China;

    Qingdao Univ Coll Mat Sci &

    Engn Inst Graphene Appl Technol Innovat Lab Fiber Mat Growing Base State Key Lab Collaborat Innovat Ctr Qingdao 266071 Peoples R China;

    Qingdao Univ Coll Mat Sci &

    Engn Inst Graphene Appl Technol Innovat Lab Fiber Mat Growing Base State Key Lab Collaborat Innovat Ctr Qingdao 266071 Peoples R China;

    Qingdao Univ Coll Mat Sci &

    Engn Inst Graphene Appl Technol Innovat Lab Fiber Mat Growing Base State Key Lab Collaborat Innovat Ctr Qingdao 266071 Peoples R China;

    Qingdao Univ Coll Mat Sci &

    Engn Inst Graphene Appl Technol Innovat Lab Fiber Mat Growing Base State Key Lab Collaborat Innovat Ctr Qingdao 266071 Peoples R China;

    Qingdao Univ Coll Mat Sci &

    Engn Inst Graphene Appl Technol Innovat Lab Fiber Mat Growing Base State Key Lab Collaborat Innovat Ctr Qingdao 266071 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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