磷掺杂中空碳球的制备及其电容性能  

Preparation and electrochemical capacitance performance of phosphorus-doped hollow carbon spheres

作　　者：李忠裕 李云同 吴雯倩 刘玲[1] 彭超华 袁丛辉[1] 戴李宗[1] LI Zhong-yu;LI Yun-tong;WU Wen-qian;LIU Ling;PENG Chao-hua;YUAN Cong-hui;DAI Li-zong(College of Materials,Xiamen University,Xiamen 316005,Fujian China)

机构地区：[1]厦门大学材料学院

出　　处：《材料工程》2020年第3期105-111,共7页Journal of Materials Engineering

基　　金：国家自然科学基金项目(51673161,51773172);福建省重大科技创新平台(2014H2006)

摘　　要：以酚醛预聚体和苯乙烯为原料通过水热法一步合成中空聚合物球(HPS),再以三氯化磷为反应剂通过傅-克反应对HPS处理得到含磷交联聚合物,经高温炭化和KOH活化制备磷掺杂中空碳球(AP-HCS)。采用FT-IR,TG,SEM,TEM,Raman,BET,XPS等手段对含磷聚合物和碳材料的组成、结构与形貌进行表征,测试碳材料在1 mol/L H2SO4介质中的电容性能。结果表明:AP-HCS的比表面积可达2177 m2/g,在1 A/g电流密度下,比电容为288 F/g,5 A/g电流密度下经循环充放电5000次后比电容值仍能保持88.9%,具备良好的电容性能。Hollow polymer spheres(HPS) were firstly prepared through a hydrothermal method using phenolic precursor and styrene as starting materials.HPS was treated with phosphorous trichloride via a Friedel-Crafts reaction to obtain phosphorus-containing cross-linked polymer.After carbonization and KOH activation,P-doped hollow porous carbon spheres(AP-HCS) were prepared.FT-IR,TG,SEM,TEM,Raman,BET and XPS, and so on, were used to characterize the composition,structure and morphology of polymer and carbon spheres.The capacitance performance was also tested in 1 mol/L H2SO4electrolyte.The results show that AP-HCS has specific surface area of 2177 m2/g,exhibits good capacitance performance of 288 F/g at the current density of 1 A/g.After charging and discharging for 5000 times at the current density of 5 A/g,the 88.9% capacity is retained, showing good capacitance performance.

关 键 词：傅-克反应 磷掺杂 中空碳球 活化 电容性能 

分 类 号：TQ127.1[化学工程—无机化工]