用于柔性超级电容器的非均相碳改性碳布电极  

Surface modification of carbon cloth electrode in flexible supercapacitors with heterogeneous carbonaceous materials

作　　者：彭永飞 肖韦 岳倩倩 刘永家 贺爱华 聂华荣 PENG Yongfei;XIAO Wei;YUE Qianqian;LIU Yongjia;HE Aihua;NIE Huarong(Key Laboratory of Rubber-plastics of Ministry of Education,Shandong Provincial Key Laboratory of Olefin Catalysis and Polymerization,School of Polymer Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,Shandong Province,China)

机构地区：[1]青岛科技大学高分子科学与工程学院,山东省烯烃催化与聚合重点实验室教育部橡塑重点实验室,山东青岛266042

出　　处：《化学工程》2024年第12期27-31,38,共6页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(51973101,51773105);山东省自然科学基金资助项目(ZR2020KE014);泰山学者工程与淄博英才计划资助(Zbyc 2022011)。

摘　　要：碳材料是常见的电极材料,但其化学惰性和低比表面积限制了其在超级电容器中的进一步应用。利用简单高效的火焰合成反应和微波热解处理对碳布表面改性,制备具有高比表面积和高化学活性的非均相碳布电极材料。研究发现:火焰燃烧反应,可在碳材料表面引入大量碳纳米颗粒,提高碳布的比表面积和表面亲水性;微波热解改性后,碳布电极的比电容、能量密度均有明显增加,分别为178.7 F/g(电流密度为1 A/g)和20.6(W·h)/kg(功率密度为400 W/kg);在10000次循环后,材料仍显示出非常好的电化学循环稳定性,有望用于柔性超级电容器电极材料。提供的碳材料改性方法,未涉及额外溶剂的使用和高能耗设备长时间运行,是一种值得推介的碳材料绿色改性技术。Carbon materials are commonly used electrode materials.However,the chemically inert properties and low specific surface areas limit their applications in supercapacitors.Microwave pyrolysis combined with flame synthesis was proposed to modify the surface of carbon cloth for the development of heterogeneous carbonaceous electrodes with a high specific surface area and improved chemical activity.It is found that a large number of carbon nanoparticles are anchored on the carbon cloth via flame synthesis,resulting in an improved specific surface area and hydrophilicity.After microwave pyrolysis,there is a significant increase in the specific capacitance(178.7 F/g at a current density of 1 A/g)and energy density[20.6(W·h)/kg at a power density of 400 W/kg]of carbon cloth.Meanwhile,after 10000 cycles,a excellent electrochemical cycling stability is exhibited and it has high potential in flexible supercapacitor electrode material.Also,the modification method provided in this case,which does not involve the use of additional solvents or the long-term operation of high energy-consuming equipment,is a worthwhile green modification technology for carbon material.

关 键 词：碳布 碳纳米颗粒 微波热解 火焰合成 超级电容器 

分 类 号：O646[理学—物理化学]