酚醛树脂基碳微球的制备及其电化学性能研究  

Study on preparation and electrochemical properties of phenolic resin-based carbon microspheres

作　　者：杨慧敏 杜旭 郭小惠[1] 刘金彦[1] 李松波[1] YANG Huimin;DU Xu;GUO Xiaohui;LIU Jinyan;LI Songbo(School of Chemistry and Chemical Engineering, Inner Mongolia University of Science &Technology, Baotou 014010, China;Inner Mongolia Key Laboratory of Coal Chemical Engineering & Comprehensive Utilization,Baotou 014010, China)

机构地区：[1]内蒙古科技大学化学与化工学院,内蒙古包头014010 [2]内蒙古自治区煤化工与煤炭综合利用重点实验室,内蒙古包头014010

出　　处：《功能材料》2020年第3期3133-3138,共6页Journal of Functional Materials

基　　金：内蒙古自然科学基金资助项目(2017BS0204);国家自然科学基金青年基金资助项目(21902080)

摘　　要：以间苯二酚和甲醛为前驱体,1,6-己二胺作为交联剂,通过水热法制备出一种球形纳米酚醛树脂基碳微球材料。采用N2吸附、XRD及SEM对材料的结构和形貌表征表明,交联剂的加入可得到球形形貌的碳纳米微球,同时,改变交联剂的量可以控制球形颗粒的大小及结构,但FT-IR表明对表面官能团未有影响。利用循环伏安法、恒流充放电及交流阻抗曲线对碳球材料电化学性能进行评价,在-0.95~0 V电压范围内,碳球材料具有典型的双电层电容和充放电可逆性。当1,6-己二胺与间苯二酚摩尔比为0.4时,在1 A/g的电流密度下测得的比电容为147.37 F/g。对电极进行5000次循环充放电测试,其比容保持率为91.27%。Using resorcinol and formaldehyde as precursors and 1,6-hexanediamine as crosslinking agent,a spherical nano-phenolic resin-based carbon microspheres was prepared by hydrothermal method.The structure and morphology of the material were characterized by N2 adsorption,XRD and SEM.It was found that carbon nanoparticles with spherical morphology could be obtained by the addition of crosslinking agent.Meanwhile,the size and structure of the spherical particles could be controlled by changing the amount of crosslinking agent,but FT-IR showed no effect on the surface functional groups.The electrochemical properties of carbon spherical materials were evaluated by cyclic voltammetry,constant-current charge-discharge curve and AC impedance curve.In the range of-0.95~0 V,carbon spheres had typical double-layer capacitance and reversibility of charge-discharge.When the molar ratio of 1,6-hexanediamine to resorcinol was 0.4,the specific capacitance measured at current density of 1 A/g was 147.37 F/g.The specific capacitance retention rate of the electrodes was 90%after 5000 cycles of charge-discharge tests.

关 键 词：电容器 碳微球 1 6-己二胺 电化学性能 循环性能 

分 类 号：TQ314.2[化学工程—高聚物工业]