Department of Materials Science, Fudan University, Shanghai 200433, China; Chemical Engineering and Food Technology Cluster, Singapore Institute of Technology, Singapore 138683, Singapore.
The State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi an 710072, China.
J Colloid Interface Sci. 2018 Nov 1;529:265-272. doi: 10.1016/j.jcis.2018.06.010. Epub 2018 Jun 8.
A mesoporous octahedral copper oxide@titania (CuO/TiO) composites with core-shelled structure have been successfully fabricated via a facile and cost-effective approach, which involves two main steps: the creation of homogeneous TiO shell onto the octahedral Cu-based metal-organic frameworks (MOFs) template and thermal decomposition of the template at controlled temperature in the air. The design of combining CuO with the TiO layer within a porous octahedra structure is beneficial to integrate the advantages of different components and address the severe volume change associated with pulverization issue that exists in most metal oxides-based electrodes. When assembled as an anode material for lithium-ion batteries, the as-fabricated mesoporous CuO/TiO octahedra can achieve outstanding electrochemical performance in terms of a high reversible capacity (692 mAh g at 100 mA g for over 200 cycles) and exceptional rate capability (441 and 387 mA h g at 1600 and 3200 mA g, respectively).
一种具有核壳结构的介孔八面体氧化铜@二氧化钛（CuO/TiO）复合材料通过一种简单且经济有效的方法成功制备，该方法包含两个主要步骤：在八面体铜基金属有机骨架（MOFs）模板上形成均匀的 TiO 壳，以及在空气中控制温度下对模板进行热分解。将 CuO 与多孔八面体结构内的 TiO 层结合的设计有利于整合不同组件的优势，并解决大多数基于金属氧化物的电极中存在的严重体积变化和粉碎问题。当组装为锂离子电池的阳极材料时，所制备的介孔 CuO/TiO 八面体在高可逆容量（在 100 mA g 时 200 次循环后为 692 mAh g）和出色的倍率性能（在 1600 和 3200 mA g 时分别为 441 和 387 mAh g）方面表现出优异的电化学性能。
