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《Journal of Baoji University of Arts and Sciences(Natural Science Edition)》 2018-04
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Structural growth and electrochemical properties of high-capacity polyaniline electrode materials

ZHAO Jin;LIU Xin-yuan;ZHANG Gai-ni;College of Chemistry and Chemical Engineer,Engineering Research Center of Advanced Ferroelectric Functional Materials,Shaanxi Key Laboratory of Phytochemistry,Baoji University of Arts and Sciences;  
Purposes—To prepare polyaniline electrode material supported on highly-conductive carbon cloth(C-cloth-PANI)by chemical oxidative polymerization,and to study the electrochemical properties with the three-electrode system.Methods—With highly-conductive carbon cloth as the substrate for polyaniline to grow and(NH4)2S2O8as oxygenant,the C-cloth-PANI was prepared by in-situ oxidative polymerization of aniline monomers under an acid condition.Raman spectroscopy,X-ray diffraction(XRD)and field emission scanning electron microscopy(FESEM)were used to characterize the structure and morphology.In the three electrode system,with a saturated calomel electrode as reference electrode,metal platinum electrode as auxiliary electrode and C-clothPANI as working electrode,the electrochemical measurements were performed by cyclic voltammetry and galvanostatic charge and discharge tests in 1mol/L H2SO4 electrolyte.Result—The C-clothPANI electrode material exhibits the nano-array structure and is arranged neatly.At a current density of 1A/g,the mass specific capacitance was 595F/g.When the current density was increased to 20A/g,its rate performance was as high as 86.4%,which is better than PANI nano-electrode material(365F/g,75.3%).Conclusion—Making polyaniline grow on highly-conductive carbon cloth substrate,which is beneficial to optimize electrode structure,not only improves charge transfer speed but also increases the utilization efficiency of active materials.
【Fund】: 宝鸡文理学院博士科研启动费项目(ZK2017028)
【CateGory Index】: O633.21;O646.54
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