| 초록 |
Perovskite-type metal oxides have recently attracted great attention as pseudocapacitor electrode materials due to their unique charge storage mechanism. LaMnO3 (LM) is a typical perovskite material exhibiting high capacitance. However, LM has poor cycle stability, low conductivity, and low specific surface due to aggregation. On the other hand, carbon materials have been widely used as electrode materials for electric double layer capacitors owing to the excellent conductivity and large specific surface area. In this study, hybrid carbon nanofibers (CNFs) with LM nanoparticles were investigated as supercapacitor electrode materials. For the purpose, LM nanoparticles were prepared by sol-gel method and calcination. Hybrid CNFs were then fabricated via electrospinning of poly(azomethine ether) solutions with LA nanoparticles and following carbonization. The electrochemical properties of the hybrid CNFs were analyzed by considering the LM content and microstructural features. |
