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首页> 外文期刊>RSC Advances >Nitrogen-doped 3D porous carbons with iron carbide nanoparticles encapsulated in graphitic layers derived from functionalized MOF as an efficient noble-metal-free oxygen reduction electrocatalysts in both acidic and alkaline media
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Nitrogen-doped 3D porous carbons with iron carbide nanoparticles encapsulated in graphitic layers derived from functionalized MOF as an efficient noble-metal-free oxygen reduction electrocatalysts in both acidic and alkaline media

机译：氮掺杂的3D多孔碳，其具有铁碳化物纳米粒子，其在衍生自官能化MOF的石墨层中，作为酸性和碱性介质的无效无金属氧还原电催化剂

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摘要

A novel kind of functionalized metal organic framework (F-MOF, Prussian blue/graphene oxide composite, PB/GO) is prepared by a simple method. The morphology characterization indicates that iron carbide nanoparticles supported on highly nitrogen-doped 3D porous carbons (Fe-C/NG) are formed after direct annealing of F-MOF under an Ar atmosphere. Fe-C/NG-10%-700-AL (10% represents the mass ratio between GO and iron sa 700 stands for pyrolysis temperature; AL means acid leaching) exhibits excellent catalytic activity for the ORR (oxygen reduction reaction) in both acidic and alkaline media, together with superior durability, excellent methanol tolerance and a nearly four-electron pathway for the ORR. The excellent catalytic performance for the ORR on Fe-C/NG-10%-700-AL is attributed to the existence of iron carbide nanoparticles, highly doped N concentration, high surface area and pores of 3D graphene and the synergistic effect between multiple components.
机译：通过简单的方法制备一种新型的官能化金属有机骨架（F-MOF，普鲁士蓝/石墨烯氧化物复合材料，PB / GO）。 形态表征表明，在AR气氛下的F-MOF的直接退火后，形成高度氮掺杂的3D多孔碳（Fe-C / NG）上的碳化铁纳米粒子。 Fe-C / NG-10％-700-A1（10％代表Go和铁盐之间的质量比; 700代表热解温度; Al是指酸浸出）在两者中表现出orr（氧还原反应）的优异催化活性 酸性和碱性介质，以及优异的耐久性，优异的甲醇耐受性和近四电子途径。 Fe-C / NG-10％-700-A1上的锻造催化性能优异地归因于存在铁碳化铁纳米粒子，高度掺杂的N浓度，高表面积和3D石墨烯的孔和多个组分之间的协同效应 。

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  • 来源
    《RSC Advances》 |2016年第112期|共11页
  • 作者

    Xue Juanhong; Zhao Ling; Dou Zhiyu; Yang Yan; Guan Yue; Zhu Zhen; Cui Lili;

  • 作者单位

    Changchun Univ Sci &

    Technol Key Lab Appl Chem &

    Nanotechnol Univ Jilin Prov Dept Chem &

    Chem Engn Changchun 130022 Peoples R China;

    Shenyang Rubber Res &

    Design Inst Co Ltd Shenyang Peoples R China;

    Changchun Univ Sci &

    Technol Key Lab Appl Chem &

    Nanotechnol Univ Jilin Prov Dept Chem &

    Chem Engn Changchun 130022 Peoples R China;

    Changchun Univ Sci &

    Technol Key Lab Appl Chem &

    Nanotechnol Univ Jilin Prov Dept Chem &

    Chem Engn Changchun 130022 Peoples R China;

    Changchun Univ Sci &

    Technol Key Lab Appl Chem &

    Nanotechnol Univ Jilin Prov Dept Chem &

    Chem Engn Changchun 130022 Peoples R China;

    Changchun Univ Sci &

    Technol Key Lab Appl Chem &

    Nanotechnol Univ Jilin Prov Dept Chem &

    Chem Engn Changchun 130022 Peoples R China;

    Changchun Univ Sci &

    Technol Key Lab Appl Chem &

    Nanotechnol Univ Jilin Prov Dept Chem &

    Chem Engn Changchun 130022 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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