以静电纺丝制备的碳纳米纤维(CNF)膜为支撑体,通过表面氧化处理和原位生长,制备了自支撑Cu-BTC/CNF复合电极,并研究了其在超级电容器中的电化学性能。由于CNF膜基体的三维网络结构有效提高了电极的导电性和离子传输能力,Cu-BTC/CNF复合电极在超级电容器中的电化学性能得到了显著提高。研究结果表明,自支撑Cu-BTC/CNF复合电极在1A/g时的放电容量达到263.3F/g,相比CNF电极提升了1.82倍。此外,Cu-BTC/CNF复合电极还具有良好的倍率性能和循环稳定性。
Free-standing Cu-BTC/CNF composite electrode was prepared based on electrospun carbon nanofibers (CNF) membrane as support,through the surface oxidation treatment and in situ growth for supercapacitor.Due to the 3D network structure of the CNF membrane,which could effectively improve the conductivity and ion transport of the electrode,the electrochemical performance of Cu-BTC/CNF got improved significantly,which delivered a gravimetric capacitance of 263.3F/g at 1A/g,about 1.82 times higher than CNF electrode.In addition,the Cu-BTC/CNF also had good rate performance and cycle stability.
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基金资助
山东省自然科学基金(ZR2019PB018)
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