Synthesis and characterization of cobalt oxide (Co₃O₄) nanostructures hydrothermally transformed from ZIF-67 nanoplates for electrochemical applications = Synthesis and characterization of cobalt oxide (Co₃O₄) nanostructures hydrothermally transformed from ZIF-67 nanoplates for electrochemical applications

다국어 초록 (Multilingual Abstract)

Metal oxide nanomaterials(NMs) used as electrodes for energy storage applications offer characteristic materials properties, including a large specific surface area for fast interfacial faradic reaction and a small distance for mass and charge transport. Recently, there has been a growing interest in the development of cobalt-based NMs for a high-performance electrode and electrocatalyst for oxygen evolution reaction because they are earth-abundant and relatively lower cost than noble metal oxides such as RuO₂ and IrO₂. Therefore, control over compositions and structures of cobalt oxide(Co₃O₄) endow them with optimized catalytic properties desired for high-performance electrochemical applications. Herein, we develop solution-phase synthetic routes to Co₃O₄ nanostructures transformed from zeolitic imidazolate framework-67(ZIF-67) nanoplates. Results of the formation of ZIF-67 nanoplates and their hydrothermal transformation to CO₃O₄ nanostructures will be discussed in the presentation.