基于金属有机骨架材料为前驱物的锂电负极材料α-Fe2O3的合成及性能表征  

Synthesis and Electrochemical Performance of α-Fe_2O_3 Anode Material Based on MOF as Precursor

作　　者：赵思维[1] 孙雪梅[1] 孙宇涵[1,2] 陈瑞欣[1] ZHAO Si-wei;SUN Xue-mei;SUN Yu-han;CHEN Rui-xin(College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology , Qingdao 266042, P. R. China;Qingdao fifty-eight Middle School of Shandong Province, Qingdao 266100, P. R. China)

机构地区：[1]青岛科技大学化学与分子工程学院,青岛266042 [2]山东省青岛五十八中学,青岛266100

出　　处：《科学技术与工程》2016年第30期1-5,共5页Science Technology and Engineering

基　　金：国家自然科学基金(51372125)资助

摘　　要：采用基于铁离子构筑的金属有机骨架化合物(MIL-53-Fe、MIL-88-Fe、MIL-100-Fe)为模板,通过简单的煅烧处理,制备出三种不同形貌的α-Fe_2O_3。结果表明当其作为锂离子电池负极材料时,以MIL-53-Fe为前驱物制备的α-Fe_2O_3具有最优异的电化学性能,当电流为0.1 C时,首次放电容量超过1 100 mA·h/g,在电流为1 C循环100次后,容量保持在245 mA·h/g。Based on iron organic frameworks(MIL-53-Fe,MIL-88-Fe,MIL-100-Fe)as template,three kindsof porous a-Fe203are prepared by a simple calcining treatment in air.When tested as anode material for lithiumbatteries,the experiment results indicate that the calcined MIL-53-Fe has the best electrochemical performance.When at a rate of0.1C,it delivered a exceeded capacity of1100mA?h/g.After100cycles at1C,comparablecapacity of245mA?h/g could be achieved.

关 键 词：金属有机骨架化合物 Α-FE2O3 前驱物 锂离子电池 

分 类 号：O646.54[理学—物理化学]