化工新型材料

化工新型材料 ›› 2026, Vol. 54 ›› Issue (7) : 85-90. DOI: 10.19817/j.cnki.issn1006-3536.2026.07.026

新材料与新技术

细菌纤维素基MXene/MoS₂复合材料的制备及电化学性能研究

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Synthesis and electrochemical performance of bacterial cellulose-based MXene/MoS₂ composite materials

Xu Chenchen, Wang Wanxin, Zhou Huimin

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Received
2025-08-13
Issue Date	Revised Date
2026-07-15	2025-08-13

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摘要

为了提升细菌纤维素基MoS₂负极材料的导电性和循环稳定性,采用原位培养结合水热碳化的方法,将MXene引入细菌纤维素(BC)构建三维纳米纤维网络,并均匀负载MoS₂,制备了柔性自支撑BC衍生碳/MXene/MoS₂复合材料。复合材料的形貌特征、晶体结构及元素分布通过扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线衍射(XRD)和X射线光电子能谱(XPS)等技术进行分析。随后,结合循环伏安(CV)、恒流充放电以及电化学阻抗谱(EIS)测试,评估了不同MXene含量对其储锂行为的影响。结果表明:适量MXene(MXene:培养液=2:5,质量比)可显著优化活性组分分布和界面结合,在0.1A/g下实现首圈放电比容量1301.1mAh/g,150圈循环后容量保持率为74.86%,并在多倍率条件下保持较高可逆性与稳定性。

Abstract

To enhance the electrical conductivity and cycling stability of bacterial cellulose (BC)-based MoS₂ anode materials,an in situ cultivation combined with hydrothermal carbonization approach was employed to incorporate MXene into BC,thereby constructing a three-dimensional nanofiber network.MoS₂ was uniformly loaded onto this network to obtain a flexible,self-supporting BC-derived carbon/MXene/MoS₂ composite.The morphology,crystal structure,and elemental distribution of the composite were characterized using scanning electron microscopy (SEM),transmission electron microscopy (TEM),X-ray diffraction (XRD),and X-ray photoelectron spectroscopy (XPS).Subsequently,cyclic voltammetry (CV),galvanostatic charge-discharge,and electrochemical impedance spectroscopy (EIS) tests were conducted to evaluate the effect of different MXene contents on its lithium storage performance.The results indicated that an appropriate MXene content (MXene-to-culture medium ratio=2:5) significantly optimized the distribution of active components and interfacial bonding,achieving a first-cycle discharge capacity of 1301.1mAh/g at 0.1A/g,with a capacity retention of 74.86% after 150 cycles,while maintaining high reversibility and stability under various rate conditions.

关键词

细菌纤维素 / 二硫化钼 / MXene / 锂离子电池

Key words

bacterial cellulose / molybdenum disulfide / MXene / lithium-ion battery

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细菌纤维素基MXene/MoS₂复合材料的制备及电化学性能研究[J]. 化工新型材料, 2026, 54(7): 85-90 DOI:10.19817/j.cnki.issn1006-3536.2026.07.026

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