Fabrication of flexible hierarchical porous nitrogen-doped carbon nanofiber films for application in binder-free supercapacitors
Fabrication of flexible hierarchical porous nitrogen-doped carbon nanofiber films for application in binder-free supercapacitors
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DOI：
10.1016/j.matchemphys.2015.11.024
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发表时间：
2016-02
影响因子：
4.6
通讯作者：
Kaibing Huang;Yiyuan Yao;Xiuwen Yang;Zhenhua Chen;Min Li
中科院分区：
文献类型：
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作者：
Kaibing Huang;Yiyuan Yao;Xiuwen Yang;Zhenhua Chen;Min Li
以聚丙烯腈和有机硅表面活性剂分别为碳源和致孔剂，采用静电纺丝法制备了多级多孔氮掺杂碳纳米管（HPNCNF）薄膜。通过扫描电子显微镜、透射电子显微镜、X射线光电子能谱、拉曼光谱和氮气吸附-脱附实验研究了HPNCNFs的形貌、化学组成和孔隙率。所制备的HPNCNF具有656 m2 g-1的比表面积、分级孔结构和8.1 at%的氮含量，在6 mol L-1 KOH水溶液中显示出289 F g-1的比电容，具有优异的循环耐久性，使得HPNCNF膜成为未来在超级电容器中应用的有前景的电极材料。
Hierarchical porous nitrogen-doped carbon nanofiber (HPNCNF) films were prepared via a simple electrospinning process, in which polyacrylonitrile and silicone surfactants were adopted as carbon source and porogen, respectively, followed by a thermal treatment. The morphology, chemical composition, and porosity of the HPNCNFs were investigated by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy and nitrogen adsorption–desorption experiments. The as-prepared HPNCNFs with a specific surface area of 656 m2g−1, a hierarchical pore structure, and a nitrogen content of 8.1 at% showed a specific capacitance of 289 F g−1in a 6 mol L−1KOH aqueous solution with excellent cycle durability, making HPNCNF films a promising electrode material for a future application in supercapacitors.