Microstructures and Electrochemical Properties of Bicomponent Nanofibers Consisting of PAN/Lignin-derived Carbon Nanofibers and LaMnO<SUB>3</SUB> Nanofibers
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초록
내용
Perovskite oxides have attracted great attention as supercapacitor electrode materials because of their high specific capacitance and electrochemical stability. LaMnO3, as one of the perovskite oxides exhibits high capacitance. However, it is difficult to apply to practical fields because of its low electrical conductivity. To overcome the disadvantages of LaMnO3 electrode materials, in this study, a series of bicomponent nanofibers composed of polyacrylonitrile/lignin-derived carbon nanofibers and LaMnO3 nanofibers were fabricated via dual electrospinning technique and following heat-treatment at different temperatures for simultaneous carbonization and calcination. The microstructural features of the bicomponent nanofibers were characterized by using SEM, EDS, and XRD. The electrochemical performance of the hybrid nanofibers as self-standing and binder-free supercapacitor electrode materials was analyzed by using cyclic voltammetry, galvanostatic charge-discharge measurement.