CAJ | 학술논문

以嵌段共聚物F127为模板剂，Ni(NO3)2·6H2O为Ni源,低分子量的戊二醛和木质素为碳源， KOH为扩孔剂，通过溶胶凝胶法合成以无定形碳或者聚合物为骨架的具有高分散性的NiO纳米粒子。通过XRD, TEM和BET表征其结构和形貌。结果表明复合材料中纯的NiO纳米粒子被无定形碳包围， BET比表面积最高为802 m2/g并且具有窄的孔径分布。通过循环伏安和恒流充放电来表征复合材料的电化学性能。结果表明复合材料具有高的比电容和在1000次循环中具有很好的循环稳定性。在1 A/g到10 A/g的恒流充放电实验中，复合材料的比电容保持率为90%。因此，介孔NiO/C复合材料具有很好的做超级电容器电极材料的前景。
이감단공취물F127위모판제，Ni(NO3)2·6H2O위Ni원,저분자량적무이철화목질소위탄원， KOH위확공제，통과용효응효법합성이무정형탄혹자취합물위골가적구유고분산성적NiO납미입자。통과XRD, TEM화BET표정기결구화형모。결과표명복합재료중순적NiO납미입자피무정형탄포위， BET비표면적최고위802 m2/g병차구유착적공경분포。통과순배복안화항류충방전래표정복합재료적전화학성능。결과표명복합재료구유고적비전용화재1000차순배중구유흔호적순배은정성。재1 A/g도10 A/g적항류충방전실험중，복합재료적비전용보지솔위90%。인차，개공NiO/C복합재료구유흔호적주초급전용기전겁재료적전경。
Highly dispersed NiO nanoparticles embedded in amorphous carbon or polymer frameworks were synthesized via the sol-gel process using an amphiphilic triblock copolymer F127 as a template, Ni (NO3)2 · 6H2O as nickel source, polymerized glutaraldehyde and lignin as carbon source, KOH as pore-enlarging agent. The microstructure and morphology of the NiO/C composite are characterized by means of XRD, TEM and BET. The results show that the NiO nanoparticles are pure and surrounded by amorphous carbon, furthermore, the NiO/C composite with BET surface of 802 m2/g and narrow pore size distributions. Electrochemical studies were carried out by measurement of cyclic voltammetry (CV) and charge-discharge tests. The results demonstrate that the NiO/C composite have the high specific capacitance and display a good retention for more than 1000 cycles in a cycling test. 90%of capacitance is retained when the current density changes from 1 A/g to 10 A/g at charge-discharge tests. Thus, the NiO/C composite are a promising supercapacitor electrode material.