Nanostructured ZnO materials have been studied extensively because of their functional properties. This paper presents a composite material of zinc oxide quantum dots (ZnO QDs) and porous carbon using a one-step carbonization process. The direct carbonization of a metal–organic complex generates mesostructured porous carbon with a homogeneous distribution of ZnO QDs. The structural and morphological properties are investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The resulting ZnO QDs@porous carbon composite delivers a high specific capacity of 990 mAh g⁻¹ at 100 mA g⁻¹, 357 mAh g⁻¹ at 2 A g⁻¹, and high reversibility when evaluated as an anode for lithium ion batteries.

纳米结构的ZnO材料由于其功能特性而被广泛研究。本文提出了一种采用一步碳化法的氧化锌量子点（ZnO QDs）和多孔碳的复合材料。金属-有机络合物的直接碳化会生成介孔结构的多孔碳，并具有均匀分布的ZnO QDs。通过X射线衍射（XRD），扫描电子显微镜（SEM）和透射电子显微镜（TEM）研究了结构和形态特性。所得的ZnO QDs @多孔碳复合材料在100 mA g ^-1下提供990 mAh g ^-1的高比容量，在2 A g ^-1下提供357 mAh g ^-1的高比容量评估为锂离子电池的负极时，具有很高的可逆性。