氮氧共掺杂多孔炭的制备及其锌离子混合超级电容器性能研究  

Preparation of nitrogen and oxygen co-doped porous carbon and study on the performance of Zn-ion hybrid supercapacitors

作　　者：曹恩德 张苗苗 刘海龙[1] 谢瑞伦 田誉娇 CAO En-de;ZHANG Miao-miao;LIU Hai-long;XIE Rui-lun;TIAN Yu-jiao(School of Chemistry&Chemical Engineering,Anhui Key Laboratory of Coal Clean Conversion and High Valued Utilization,Anhui University of Technology,Ma'anshan 243032,China)

机构地区：[1]安徽工业大学化学与化工学院、煤清洁转化与高值化利用安徽省重点实验室,安徽马鞍山243032

出　　处：《燃料化学学报（中英文）》2023年第4期544-553,共10页Journal of Fuel Chemistry and Technology

基　　金：安徽省自然科学基金(1708085QB33);煤清洁转化与高值化利用安徽省重点实验室开放课题(CHV21-04、CHV22-02)资助。

摘　　要：本研究以价格低廉、来源广泛的煤沥青作为炭前驱体、尿素作为氮源和模板、氢氧化钠作为活化剂,通过结合模板法与化学活化法成功制备了具有纳米片状结构的氮氧共掺杂的多孔炭材料。多孔炭电极在0.05 A/g时最大比容量高达255.5 mA·h/g,在电流密度为1 A/g时,放电比容量达到78 mA·h/g。经过12000次循环,容量保持率仍有72.4%,并且能量密度最高达到99.6 W·h/kg,展现出作为正极材料的巨大潜力。以煤沥青为原料制备的氮氧共掺杂多孔炭材料作为锌离子混合超级电容器的正极材料表现出了优异的电化学性能。In this study,nitrogen-oxygen co-doped porous carbon materials with nano-sheet structure were successfully prepared by template method and chemical activation method using coal pitch with low cost and abundant sources as carbon precursor,urea as nitrogen source and template,and sodium hydroxide as activator.The porous carbon electrodes exhibit a maximum specific capacity of 255.5 mA·h/g at 0.05 A/g and a discharge specific capacity of 78 mA·h/g at 1 A/g.Moreover,the porous carbon electrodes deliver about 72.4%capacitance retention after 12000 cycles and a high energy density of 99.6 W·h/kg,showing great potential as cathode material.The nitrogen-oxygen co-doped porous carbon materials prepared from coal pitch display an excellent electrochemical performance as cathode material for zinc ion hybrid supercapacitors.

关 键 词：锌离子混合超级电容器 煤沥青 多孔炭 氮氧共掺杂 电极材料 

分 类 号：TM53[电气工程—电器]