Synthesis of zeolitic imidazolate framework (ZIF) nanoplates on cotton fabric for application as flexible supercapacitors in wearable electronic
발표자
박계리 (우석대학교 산학협력단)
연구책임자
박미라 (우석대학교)
초록
내용
Flexible and lightweight supercapacitors for wearable electronics is a focus of ongoing research that utilizes cotton fabric(CF) made of cellulose, which is treated with 2-methylimidazole (2MI) to facilitate the growth of Zn-zeolitic imidazolate framework (ZIF) nanoplates. The growth durations are varied at 3, 6, and 12 hours to promote the formation of two-dimensional nanoplates over the surface of the CF by adjusting Zn -to-2MI ratio. Subsequently, the carbonization of Zn-ZIF-decorated CF at 750 °C in an argon atmosphere resulted in a ZnO-wrapped carbon matrix. The electrochemical performance of optimized 6 hours sample exhibits a capacitance of 801 mF cm–2 at a current density of 1 mA cm–2, along with an energy density of 111.3 μWh cm–2 at a power density of 2 mW cm–2. Long-term testing shows a capacitance retention of 91% after 10,000 charge-discharge cycles, depicting potential energy storage device.