CAJ | 학술논문

以苯二甲酸-锌配位化合物(MOF-5)为原料合成金属骨架有机多孔碳MOF-PC,并首次应用于锂空气电池.采用XRD、SEM、TEM、氮气脱吸附和恒流充放电测试研究了MOF-PC的物理及电化学性能.结果表明,样品MOF-PC为无定型碳,比表面积为654 m2·g-1.以MOF-PC为空气电极的锂空气电池在0.1 mA·cm-2电流密度下放电比容量高达3183 mAh·g-1,比传统碳材料(Super P)在相同电流密度下的容量高90%.
이분이갑산-자배위화합물(MOF-5)위원료합성금속골가유궤다공탄MOF-PC,병수차응용우리공기전지.채용XRD、SEM、TEM、담기탈흡부화항류충방전측시연구료MOF-PC적물리급전화학성능.결과표명,양품MOF-PC위무정형탄,비표면적위654 m2·g-1.이MOF-PC위공기전겁적리공기전지재0.1 mA·cm-2전류밀도하방전비용량고체3183 mAh·g-1,비전통탄재료(Super P)재상동전류밀도하적용량고90%.
A metal organic framework porous carbon (MOF-PC)has been prepared by terephthalic acid-zinc complex (MOF-5)and employed in lithium oxygen batteries for the first time.The physical and elec-trochemical properties of the as-prepared carbon sample are investigated by powder X-ray diffraction (XRD),scanning electron microscopy (SEM),transmission electron microscopy (TEM),N2 adsorption-desorption isotherm and galvanostatic charge/discharge.The results show that the as-prepared MOF-PC is amorphous structure with a specific surface area of 654 m2 ·g-1 .The lithium oxygen battery using the MOF-PC carbon black as air electrode shows a higher capacity of 3 183 mAh·g-1 at a current density of 0.1 mA·cm-2 ,it increased about 90% capacity compared to traditional Super P carbon black.