ELECTROCHEMICAL STUDY OF NOVEL MoO3/CMK-3 AS ELECTRODE MATERIALS FOR SUPERCAPACITORS
Mesoporous carbon with MoO3 loading (MoO3/CMK-3) was obtained via ultrasonic assembly with CMK-3 as the host material and MoO3 as the guest material which was yield from MoO3·H2O2·H2O sol precursor. The structure and surface morphology of the obtained MoO3/CMK-3 powders ere characterized by X-ray Dffraction (XRD) and Feld Eission Sanning Eectron Mcroscope (FE-SEM). The supercapacitive behavior of MoO3/CMK-3 in 1M KNO3 electrolyte was studied by means of cyclic voltammetry (CV) and constant current charge ?discharge cycling (CD). The XRD results indicate that the MoO3 nanoparticles were loaded in the CMK-3. The FE-SEM images show the homogeneous surface of MoO3/CMK-3. The CV curves illustrate the existence of fast and reversible redox reactions on the surface of MoO3/CMK-3 electrode. CD curves show that the fast and reversible charge-discharge process occurs on the electrode surface. The specific capacitance of MoO3/CMK-3 is 105.54 Fg-1 at 500 mA g-1.Furthermore, the specific capacitance remains 72% of the original value when the current density increase from 500 to 1000 mA g-1.The results suggested that the MoO3/CMK-3 is a promising electrode material for high performance EDLCs.
XI LONG WEN CHEN CHUNXIA ZHAO SHAOJIANG CHEN
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,School of Materia State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,School of Materia
国际会议
The 12th Asian Conference on Solid State Ionics(第十二届亚洲固态离子学会议暨第十五届中国固态离子学会议)
武汉
英文
813-819
2010-05-02（万方平台首次上网日期，不代表论文的发表时间）