【作者】 蔡江涛； 李小燕； 党永强； 刘国阳； 邱介山； 周安宁；

【Author】 Jiangtao Cai;X. Li;Y. Dang;G. Liu;J. Qiu;A. Zhou;College of Chemistry & Chemical Engineering, Xi’an University of Science and Technology;Carbon Research Laboratory, Liaoning Key Lab for Energy Materials and Chemical Engineering, Dalian University of Technology;

【机构】 西安科技大学化学与化工学院； 大连理工大学精细化工国家重点实验室炭素材料研究室；

【摘要】 高性能超级电容器用电极材料的结构与性能调变正吸引着越来越多研究者的关注[1]。将聚苯胺(PANI)和有序分级多孔炭材料(OHPCM)通过一定的方法杂化复合,可望得到具有高比能量、长循环寿命的高性能复合电极材料[2]。本文提出以酚醛树脂为碳源,通过采用系列比率的碳源/各级模板剂及溶剂诱导挥发自组装等技术策略,调控炭材料各层次孔的结构与比例,获得结构与性能可控的OHPCM;利用功能助剂对OHPCM进行表面处理,苯胺单体在其表面通过界面聚合法与之原位共聚,构筑以共价键结合的PANI-OHPCM杂化材料。通过元素分析、FT-IR、XRD、FESEM及HRTEM检测表征PANI-OHPCM杂化材料界面的键合类型、基团及形貌结构等。采用三电极测试系统,在1M的H2SO4电解液中通过电化学工作站测试该杂化电极材料的电化学性能。实验结果表明:以磷酸为掺杂剂制备的PANI-OHPCM杂化材料的比电容可达400.95 F/g,均高于纯PANI(364.25F/g)及OHPCM的比电容(176.12F/g),有望将其用于超级电容器电极材料。更多还原

【Abstract】 How to fabricate electrode materials with tunable hierarchical pore structure and surface properties for high-performance supercapacitor remains a challenge. Here we report a new strategy to prepare ordered hierarchical porous carbon materials(OHPCM) and polyaniline(PANI) hybrid materials based on interfacial covalent bonding. As-made hybrids combining with covalent bond were prepared by surface functionalization treatment of OHPCM with functional agent, then in-situ polymerization of aniline monomer on the surface of OHPCM. The morphology and chemical compositions of PANI-OHPCM hybrids were studied by FESEM, HRTEM, energy dispersive spectroscopy, element analysis, and physical adsorption. The capacitance performance of the as-made hybrids was evaluated by cyclic voltammograms and constant current charge/discharge. The results show that the specific capacitance of PANI-OHPCM hybrids using phosphoric acid as dopant can reach 400.95 F/g, was higher than that of pure PANI(364.25F/g) and OHPCM(176.12F/g).Therefore which is expected to be used for electrode material of supercapacitor.更多还原