PbO2/Co3O4 composites were prepared on a Ti substrate by means of a composite electrodeposition method in Pb2 plating solution containing dissolved nano-Co3O4 particles.X-ray diffraction(XRD),scanning electron microsc...PbO2/Co3O4 composites were prepared on a Ti substrate by means of a composite electrodeposition method in Pb2 plating solution containing dissolved nano-Co3O4 particles.X-ray diffraction(XRD),scanning electron microscopy(SEM),energy dispersive spectrometry(EDS)and transmission electron microscopy(TEM)were used to characterize the chemical composition and morphology of the PbCh/CogC^composites.The electrochemical and capacitanee performance of the composites were investigated by cyclic voltammetry(CV),charge-discharge tests and electrochemical impedance(EIS).The results indicate that the composites comprise rutile phase CO3O4 and 0?PbC)2?In addition,the surface of the composite electrode is rough and porous.The PbO2/Co3O4 composites exhibit a high specific capacitance up to 215 F/g,which is ten times higher than that of the pure-PbO?and two times higher than that of the pure-Co3O4 in 1 mol/L NaOH electrolytes.展开更多
基金Supported by the National Natural Science Foundation of China(No.51502117,No.21671084)Key Research&Development Plan of Zhenjiang City(No.SH2017051)+1 种基金Foundation from Marine Equipment and Technology Institute for Jiangsu University of Science and Technology(No.HZ20170015)Six Talent Peaks Project in Jiangsu Province(No.2014-XCL-008)
文摘PbO2/Co3O4 composites were prepared on a Ti substrate by means of a composite electrodeposition method in Pb2 plating solution containing dissolved nano-Co3O4 particles.X-ray diffraction(XRD),scanning electron microscopy(SEM),energy dispersive spectrometry(EDS)and transmission electron microscopy(TEM)were used to characterize the chemical composition and morphology of the PbCh/CogC^composites.The electrochemical and capacitanee performance of the composites were investigated by cyclic voltammetry(CV),charge-discharge tests and electrochemical impedance(EIS).The results indicate that the composites comprise rutile phase CO3O4 and 0?PbC)2?In addition,the surface of the composite electrode is rough and porous.The PbO2/Co3O4 composites exhibit a high specific capacitance up to 215 F/g,which is ten times higher than that of the pure-PbO?and two times higher than that of the pure-Co3O4 in 1 mol/L NaOH electrolytes.
