2026年 02期

摘要(Abstract)：

为了解决二维层状新型材料MXene纳米片层易堆叠和本征储锂容量较小的问题，采用水热法制备高可逆储锂容量的纳米三氧化钼MoO₃与碳化钛Ti₃C₂基MXene材料相结合制备MoO₃-Ti₃C₂T_x复合材料，其中T为末端官能团，如—OH、—F等，x为官能团数量，对材料的结构、形貌和电化学性能进行表征分析。结果表明：MoO₃纳米颗粒均匀地生长在Ti₃C₂T_x纳米片的表面和层间，可有效防止Ti₃C₂T_x纳米片的自堆叠，Ti₃C₂T_x的多层结构能够抑制MoO₃纳米颗粒的聚集和体积膨胀。MoO₃-Ti₃C₂T_x复合材料用作锂离子电池负极材料时，呈现优异的电化学性能，比电流为0.1 A/g时的初始放电比容量大于1 000 mA·h/g，在比电流较大(5 A/g)时的放电比容量仍达到201.7 mA·h/g；在比电流为2 A/g时循环800圈后，放电比容量仍保持在280 mA·h/g，库仑效率稳定在约100%。

关键词(KeyWords)：锂离子电池;负极材料;MXene材料;电化学性能

基金项目(Foundation): 国家自然科学基金项目(22302077); 山东省大学生创新创业训练计划项目(202310427281)

作者(Author):高贵琪，宋锡鑫，曾庆林，陈勇，姜安宁，杨丽娟，冯季军

DOI:10.13349/j.cnki.jdxbn.20250617.001

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