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一步法水热法合成MoS2/C复合微球

One-pot hydrothermal synthesis of MoS2/C composite microspheres

中文摘要英文摘要

以钼酸钠、硫脲和葡萄糖为前驱体,采用一步水热法制备了MoS2/C复合微球。用X-射线衍射(XRD)、透射电镜(TEM)和扫描电镜(SEM)等对MoS2/C复合微球进行了表征。结果显示在的水热条件下,纳米须状的MoS2与葡萄糖水解产生的碳质材料相互交织在一起,形成均匀的MoS2/C复合微球。在800℃高温热处理2 h后,MoS2/C复合微球依然是无定形的并保持了原来的微球形貌。初步分析了水热条件下MoS2/C复合微球的形成机理。电化学测试结果显示热处理后的MoS2/C复合微球具有高的电化学贮锂容量和优异的电化学嵌/脱锂循环稳定性。

MoS2/C composite microspheres have been successfully synthesized via one-pot hydrothermal route using sodium molybdate, sulfocarbamide and glucose as precursors. The structure and morphology of the MoS2/C samples were characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The results showed that the nanowhisker-like MoS2 could combine with the carbonaceous produced by dehydration of glucose to form uniform MoS2/C composite microspheres under appropriate hydrothermal conditions. After their annealing at 800篊 for 2 h, the MoS2/C composite microspheres were still amorphous and retained the microspheres morphology. A possible formation mechanism of MoS2/C composite microspheres under hydrothermal conditions was investigated. Electrochemical measurements showed that the annealed MoS2/C composite microspheres exhibited the high capacity and excellent cycling durability of the electrochemical lithiation/delithiation.

陈卫祥、徐铸德、马琳、李辉

材料科学电化学工业

无机化学碳/二硫化钼复合微球水热法电化学嵌/脱锂

Inorganic chemistryMoS2/C composite microsphereshydrothermal methodelectrochemical lithiation/delithiation

陈卫祥,徐铸德,马琳,李辉.一步法水热法合成MoS2/C复合微球[EB/OL].(2008-12-25)[2025-08-18].http://www.paper.edu.cn/releasepaper/content/200812-823.点此复制

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