中文摘要：

转变金属氧化物(TMO ) 逐渐地为锂离子电池(解放) 和钠离子电池(亲族) 作为阳极材料从研究人员吸引了注意因为他们的高理论的能力。然而，他们的差的骑车稳定性和晚辈评估能力在 lithiation/sodiation 进程和他们的低内在的电子传导性限制期间源于大卷变化他们的应用程序。解决 TMO 的问题，有从金属器官的框架(MOF ) 导出的复杂结构的基于碳的金属氧化物 composites 为解放和亲族作为有希望的电极材料出现了。在这研究，我们采用了一个灵巧的调制接口的方法综合蛋黄壳基于碳的公司 ₃ O ₄ 十二面体源于 ZIF-67 zeolitic imidazolate 框架。这策略在热分解过程期间基于在 ZIF-67 核心和基于碳的壳之间的接口分离。唯一的蛋黄壳结构有效地在 lithiation 或 sodiation 期间提供体积扩大，并且碳矩阵改进电极的电的传导性。作为为解放的阳极，蛋黄壳公司 ₃ O ₄/C 十二面体展出一个高特定的能力和优秀骑车稳定性(1,100 mAh 潦？

英文摘要：

Transition-metal oxides （TMOs） have gradually attracted attention from resear- chers as anode materials for lithium-ion batteries （LIBs） and sodium-ion batteries （SIBs） because of their high theoretical capacity. However, their poor cycling stability and inferior rate capability resulting from the large volume variation during the lithiation/sodiation process and their low intrinsic electronic con- ductivity limit their applications. To solve the problems of TMOs, carbon-based metal-oxide composites with complex structures derived from metal-organic frameworks （MOFs） have emerged as promising electrode materials for LIBs and SIBs. In this study, we adopted a facile interface-modulated method to synthesize yolk-shell carbon-based Co3O4 dodecahedrons derived from ZIF-67 zeolitic imida- zolate frameworks. This strategy is based on the interface separation between the ZIF-67 core and the carbon-based shell during the pyrolysis process. The unique yolk-shell structure effectively accommodates the volume expansion during lithiation or sodiation, and the carbon matrix improves the electrical conductivity of the electrode. As an anode for LIBs, the yolk-shell Co3O4/C dodecahedrons exhibit a high specific capacity and excellent cycling stability （1,100 mAh.g-1 after 120 cycles at 200 mA-g-1）. As an anode for S1Bs, the composites exhibit an outstand- ing rate capability （307 mAh-g-1 at 1,000 mA-g-1 and 269 mAh.g-1 at 2,000 mA-g-1）. Detailed electrochemical kinetic analysis indicates that the energy storage for Li＋ and Na＋ in yolk-sheU Co3O4/C dodecahedrons shows a dominant capacitive behavior. This work introduces an effective approach for fabricating carbon- based metal-oxide composites by using MOFs as ideal precursors and as electrode materials to enhance the electrochemical performance of LIBs and SIBs.