CAJ | 학술논문

以聚苯胺包覆活性碳微球复合电极材料作为前驱体并进行高温碳化得到新型含氮碳材料(NENCs)。通过扫描电镜、透射电镜、傅里叶变换红外光谱、X射线衍射、X射线光电子能谱以及77 K温度下氮气吸脱附测试，研究碳化温度对NENCs形貌和结构的影响。将其组装成超级电容器在6 mol/L KOH电解液中进行了循环伏安、充放电、交流阻抗、循环寿命、漏电流以及自放电测试。结果表明：高温碳化得到的 NENCs 材料都具有很好的超级电容性能，尤其是碳化温度为600°C时得到的材料，当电流密度为1 A/g时的放电比电容高达385 F/g且显示最低的等效串联电阻值；且2500次循环后容量保持率高达92.8%。
이취분알포복활성탄미구복합전겁재료작위전구체병진행고온탄화득도신형함담탄재료(NENCs)。통과소묘전경、투사전경、부리협변환홍외광보、X사선연사、X사선광전자능보이급77 K온도하담기흡탈부측시，연구탄화온도대NENCs형모화결구적영향。장기조장성초급전용기재6 mol/L KOH전해액중진행료순배복안、충방전、교류조항、순배수명、루전류이급자방전측시。결과표명：고온탄화득도적 NENCs 재료도구유흔호적초급전용성능，우기시탄화온도위600°C시득도적재료，당전류밀도위1 A/g시적방전비전용고체385 F/g차현시최저적등효천련전조치；차2500차순배후용량보지솔고체92.8%。
The activated nitrogen-enriched novel carbons (NENCs) were prepared by direct carbonization using polyaniline coating activated mesocarbon microbead composites as the precursor. Herein the influences of the carbonization temperature on the structure and morphology of the NENCs samples were investigated by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and N2 adsorption/desorption isotherm at 77 K. The electrochemical properties of the supercapacitors were characterized by cyclic voltammetry, galvanostatic charge/discharge, electrochemical impedance spectroscopy (EIS), cycle life, leakage current and self-discharge measurements in 6 mol/L KOH solution. The results demonstrate that the NENC samples carbonized at 600 °C show the highest specific capacitance of 385 F/g at the current density of 1 A/g and the lowest ESR value (only 0.93?). Furthermore, the capacity retention ratio of the NENCs-600 supercapacitor is 92.8 % over 2500 cycles.