Molten Salt Electrolytic Fabrication of TiC-CDC and Its Applications for Supercapacitor
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2017年第8期
论文作者：Chaopin Wan Rongxia Zhang Shulan Wang Xuan Liu
文章页码：788 - 792
摘 要：Titanium carbide derived carbon（TiC-CDC） was prepared by the molten salt electrolytic method in molten salt NaCl–KCl at the potential of 1.3 V using TiC pellets as the anode. X-ray diffraction, scanning electron microscopy and Raman spectrum were used to characterize the composition, morphology and microstructure of TiC-CDC. The electrochemical performance of TiC-CDC for supercapacitor was investigated in 0.5 mol L-1Na2SO4 by cycle voltammograms, ac impedance spectrum and galvanostatic charge/discharge. TiC-CDC showed excellent electrochemical and capacitive performances and maintained a capacity value of 126.1 F g-1after 1000 cycles with a capacity retention rate of 97% at the current density of 3 Ag-1. The current work demonstrated the feasibility of molten salt electrolytic method for preparation of TiC-CDC and provided a non-polluting and environmentally friendly strategy for high performance supercapacitor fabrication.
Chaopin Wan1，Rongxia Zhang1，Shulan Wang1，Xuan Liu2
1. Department of Chemistry, School of Science, Northeastern University2. Department of Materials Science and Engineering, Carnegie Mellon University
摘 要：Titanium carbide derived carbon（TiC-CDC） was prepared by the molten salt electrolytic method in molten salt NaCl–KCl at the potential of 1.3 V using TiC pellets as the anode. X-ray diffraction, scanning electron microscopy and Raman spectrum were used to characterize the composition, morphology and microstructure of TiC-CDC. The electrochemical performance of TiC-CDC for supercapacitor was investigated in 0.5 mol L-1Na2SO4 by cycle voltammograms, ac impedance spectrum and galvanostatic charge/discharge. TiC-CDC showed excellent electrochemical and capacitive performances and maintained a capacity value of 126.1 F g-1after 1000 cycles with a capacity retention rate of 97% at the current density of 3 Ag-1. The current work demonstrated the feasibility of molten salt electrolytic method for preparation of TiC-CDC and provided a non-polluting and environmentally friendly strategy for high performance supercapacitor fabrication.
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