电化学2017，Vol.23Issue(1)：13-20,8.DOI:10.13208/j.electrochem.160201
以金属有机骨架材料HKUST-1为模板制备多孔聚苯胺电极及其超级电容器性能研究
Electrochemical Synthesis of Porous Polyaniline Electrodes Using HKUST-1 as a Template and Their Electrochemical Supercapacitor Property
摘要
Abstract
Excellent electrode plays vital important role in the performance of supercapacitors.Polyaniline (PANI) with good conductivity is often used to prepare electrode.However,its available surface is limited and results in a poor supercapacitance in many cases.It is desirable to fabricate an electrode containing electroactive PANI with high surface area deriving from its porous structure.Here,the metal-organic framework (MOF) material with high surface area was selected as a hard template for synthesizing porous PANI.Microporous PANI composite electrodes (Micro-PANFCC) were fabricated by depositing aniline on to carbon cloth (CC) pre-coated with MOF material of HKUST-1 using a unipolar pulse electro-polymerization method.At the same time,the PANI electrodes (PANI/CC) were also synthesized on blank carbon cloth for further comparatively studying their supercapaeitor performances.Their rnicrostmcture and morphology were characterized by using XRD and SEM.Results indicate that the micro-PANI/CC electrode was composed of aggregated nanosized PANI spheres with pore structure.The cyclic voltammetry,constant current charge and discharge,impedance and stability tests were performed to evaluate the supercapacitor properties in 0.5 mol· L-1 sulfuric acid electrolyte.Specific capacitances of micro-PANUCC and PANUCC electrodes were 895.6 F· g1 and 547.6 F· g1 at scan rate of 2 mV· st,respectively.At the same given conditions,the specific capacitance of micro-PANFCC electrode was always 1.64 times higher than that of PANUCC electrode.Meanwhile,the micro-PANFCC electrode exhibited better rate capability,lower resistance and better stability of charge and discharge than PANFCC.all the results imply that the micropomus PANI templated from HKUST-1 could be a good candidate for the electrode of supercapacitors.关键词
超级电容器/HKUST-1/多孔/聚苯胺/单极脉冲法Key words
supercapacitor/HKUST-1/porous/polyaniline/unipolar pulse electro-polymerization method分类
化学化工引用本文复制引用
栾琼,薛春峰,祝红叶,杨复娟,马旭莉,郝晓刚..以金属有机骨架材料HKUST-1为模板制备多孔聚苯胺电极及其超级电容器性能研究[J].电化学,2017,23(1):13-20,8.基金项目
国家自然科学基金项目(No.21476156)及山西省自然科学基金项目(No.2014011012-05)资助 （No.21476156）
