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BN-Graphene Composites Generated by Covalent Cross-Linking with Organic Linkers

机译:通过有机连接基共价交联生成的BN-石墨烯复合材料

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摘要

Composites of boron nitride (BN) and carboxylated graphene are prepared for the first time using covalent cross-linking employing the carbodiimide reaction. The BN(1-x)G(x) (x approximate to 0.25, 0.5, and 0.75) obtained are characterized using a variety of spectroscopic techniques and thermogravimetric analysis. The composites show composition-dependent electrical resistivity, the resistivity decreasing with increase in graphene content. The composites exhibit microporosity and the x approximate to 0.75 composite especially exhibits satisfactory performance with high stability as an electrode in supercapacitors. The x approximate to 0.75 composite is also found to be a good electrocatalyst for the oxygen reduction reaction in fuel cells.
机译:氮化硼(BN)和羧化石墨烯的复合材料是首次使用碳二亚胺反应通过共价交联制备的。使用各种光谱技术和热重分析对获得的BN(1-x)G(x)(x大约为0.25、0.5和0.75)进行表征。复合材料显示出与组成有关的电阻率,电阻率随石墨烯含量的增加而降低。该复合材料表现出微孔性,并且x接近0.75的复合材料尤其表现出令人满意的性能以及作为超级电容器中电极的高稳定性。还发现x约为0.75的复合物是燃料电池中氧还原反应的良好电催化剂。

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  • 来源
    《Advanced Functional Materials》 |2015年第37期|5910-5917|共8页
  • 作者单位

    Jawaharlal Nehru Ctr Adv Sci Res, CSIR, Ctr Excellence Chem, Bangalore 560064, Karnataka, India.;

    Jawaharlal Nehru Ctr Adv Sci Res, CSIR, Ctr Excellence Chem, Bangalore 560064, Karnataka, India.;

    Jawaharlal Nehru Ctr Adv Sci Res, CSIR, Ctr Excellence Chem, Bangalore 560064, Karnataka, India.;

    Jawaharlal Nehru Ctr Adv Sci Res, CSIR, Ctr Excellence Chem, Bangalore 560064, Karnataka, India.;

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