金属骨架有机多孔碳的制备及其在锂空气电池中的应用  

Preparation of Porous Carbon Based on Metal Organic Framework and Its Application for Lithium-Air Battery

作　　者：王先友[1] 宋云峰[1] 白艳松[1] 江兰兰[1] 舒洪波[1] 杨秀康[1] 王灏[1] 赵青蓝[1] 易兰花[1] 

机构地区：[1]湘潭大学化学学院,环境友好化学与应用教育部重点实验室,湖南湘潭411105

出　　处：《湘潭大学自然科学学报》2014年第4期43-48,共6页Natural Science Journal of Xiangtan University

基　　金：国家自然科学基金项目(51272221;21203161);湖南省教育厅重点项目(11A118);湖南省自然科学基金项目(13JJ4501)

摘　　要：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654m2·g-1.以MOF-PC为空气电极的锂空气电池在0.1mA·cm-2电流密度下放电比容量高达3 183mAh·g-1,比传统碳材料(Super P)在相同电流密度下的容量高90%.A metal organic framework porous carbon （MOF-PC） has been prepared by terephthalic acidzinc complex （MOF-5） and employed in lithium oxygen batteries for the first time. The physical and electrochemical properties of the as.prepared carbon sample are investigated by powder X-ray diffraction （XRD）, scanning electron microscopy （SEM）, transmission electron microscopy {TEM}, N2 adsorptiondesorption isotherm and galvanostatic charge/discharge. The results show that the as-prepared MOF-PC is amorphous structure with a specific surface area of 654 m^2·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.

关 键 词：锂氧(空气)电池 多孔碳 空气电极 氧还原 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]