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以葡萄糖溶液为原料,通过水热和高温碳化两步法制备了单分散的碳微球.采用X射线衍射(XRD)、傅里叶变换红外(FTIR)光谱、拉曼光谱、物理自动吸附仪(ASAP 2020)、场发射扫描电镜(FESEM)和透射电子显微镜(TEM)对材料的结构、形貌、组成以及表面特性进行了表征.用循环伏安、恒流充放电等电化学方法对其电化学性能进行了测试,结果表明:碳微球通过堆积形成微米级多孔网络结构,为电解液离子嵌入-脱出提供了有效的通道,从而这种碳微球具有良好的电化学性能。
Monodisperse carbon microspheres were prepared by a two-step hydrothermal and high-temperature carbonization process using glucose as raw material.X-ray diffraction (XRD), Fourier transform infrared (FTIR), Raman spectroscopy, (ASAP 2020), field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) were used to characterize the structure, morphology, composition and surface properties of the material.Electrochemical methods such as cyclic voltammetry and constant current charge-discharge The results show that the microspheres form a micron porous network structure by stacking, which provides an effective channel for the electrolyte ions to intercalation and delamination. Therefore, the microspheres have good electrochemical performance.