物理化学学报2012，Vol.28Issue(3)：609-614,6.DOI:10.3866/PKU.WHXB201201162
碳纳米管/聚苯胺/石墨烯复合纳米碳纸及其电化学电容行为
Carbon Nanotube/Polyaniline/Graphene Composite Paper and Its Electrochemical Capacitance Behaviors
摘要
Abstract
Flexible carbon nanotube/polyaniline/graphene (CNT/PANI/GR) composite papers were prepared by electrochemical polymerization of PAN I on cyclic voltammetry electrochemical oxidized CNT (CV-CNT) papers and the successive adsorption of GR. CNT, PANI, and GR provided a flexible conducting network skeleton, faradaic pseudocapacitive material, and surface conductivity modification properties, respectively. The composite papers exhibited a sandwich structure with an outer layer of GR and an inner layer composite network of CV-CNT/PANI, taking full advantage of the superior properties of the three components. The structure and morphology were characterized by field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and Raman spectroscopy. The chemical capacitance characteristics were studied thoroughly. It was shown that PANI nanowhiskers wrapped around the CV-CNT surface evenly. The composite paper exhibited enhanced capacitance and high current charge/discharge characteristics as a supercapacitor electrode. The specific capacitance level could reach 415 F·g-1 at a current density of 0.5 A·g-1 and maintain a level of 106 F·g-1 at the higher current density of 20 A·g-1 In the protection of GR, the composite maintained a higher capacitance thanCV-CNT/PANI after 1000 cycles, suggesting that the CV-CNT/PANI/GR composite would be an ideal flexible electrode material for a supercapacitor.关键词
碳纳米管/聚苯胺/石墨烯/电化学聚合/电容Key words
Carbon nanotube/Polyaniline/Graphene/Electrochemical polymerization/Capacitance分类
化学化工引用本文复制引用
靳瑜,陈宏源,陈名海,刘宁,李清文..碳纳米管/聚苯胺/石墨烯复合纳米碳纸及其电化学电容行为[J].物理化学学报,2012,28(3):609-614,6.基金项目
苏州市科技项目(SYG201018)及江苏省产学研联合创新项目(BY2011178)资助 （SYG201018）
