物理化学学报

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MOF-on-MOF衍生策略制备蛋黄-壳结构CoNi@NC-Co@NC多组分纳米复合材料用于微波吸收和防腐

梁启芹1, 许倍嘉1, 肖俊雄1, 刘树成1, 阚绪材2, 张振乾3, 罗驹华4, 李海丰5, 兰迪5, 祁小四1   

  1. 1 贵州大学物理学院, 贵州 贵阳 550025;
    2 安徽大学物理与材料科学学院, 安徽 合肥 230601;
    3 杭州电子科技大学浙江省先进电机能量转换材料重点实验室, 浙江 杭州 310012;
    4 盐城工学院材料科学与工程学院, 江苏 盐城 224051;
    5 湖北汽车工业学院汽车材料学院, 湖北 十堰 442002
  • 收稿日期:2026-06-16 修回日期:2026-08-02 录用日期:2026-08-13
  • 通讯作者: 刘树成, 罗驹华, 祁小四 E-mail:scliu@gzu.edu.cn;ljh@ycit.edu.cn;xsqi@gzu.edu.cn
  • 基金资助:
    本研究得到了贵州省基础研究计划(自然科学) (ZD[2025]重点 086)、贵州省研究生科研基金项目(025YJSKYJJ035)、贵州省科技平台及人才团队计划(GCC[2023]007)、贵州大学创新群体([2024]08)、安徽省磁性功能材料与器件重点实验室(MFMD-2025-02)以及贵州省重大科技专项(XKBF[2025]010)的资助。

MOF-on-MOF derived strategy to produce yolk-shell CoNi@NC-Co@NC multicomponent nanocomposites for microwave absorption and corrosion resistance

Qiqin Liang1, Beijia Xu1, Junxiong Xiao1, Shucheng Liu1, Xuncai Kan2, Zhenqian Zhang3, Juhua Luo4, Haifeng Li5, Di Lan5, Xiaosi Qi1   

  1. 1 College of Physics, Guizhou University, Guiyang 550025, Guizhou Province, China;
    2 School of Physics and Materials Science, Anhui University, Hefei 230601, Anhui Province, China;
    3 Zhejiang Key Laboratory of Energy Conversion Materials for Advanced Motor, Hangzhou Dianzi University, Hangzhou 310012, Zhejiang Province, China;
    4 School of Materials Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, Jiangsu Province, China;
    5 School of Automotive Materials, Hubei University of Automotive Technology, Shiyan 442002, Hubei Province, China
  • Received:2026-06-16 Revised:2026-08-02 Accepted:2026-08-13
  • Contact: Shucheng Liu, Juhua Luo, Xiaosi Qi E-mail:scliu@gzu.edu.cn;ljh@ycit.edu.cn;xsqi@gzu.edu.cn

摘要: 构建具有丰富异质界面的蛋黄-壳结构多组分纳米复合材料(MCNCs)是实现高效微波吸收与多功能应用协同优化的有效策略。本文提出一种基于金属有机框架(MOF)衍生策略,制备出蛋黄-壳结构的CoNi@氮掺杂碳(NC)-Co@NC MCNCs。通过控制热处理温度,采用简易共沉淀法结合热处理工艺,成功设计并制备了具有不同石墨化程度的CoNi@NC-Co@NC MCNCs,实现了电磁参数的可调性及微波吸收性能(MAPs)的显著提升。其中,优化后的CoNi@NC-Co@NC MCNCs展现出优异的MAPs:在1.75 mm厚度下最小反射损耗达-62.17 dB,1.69 mm厚度时有效吸收带宽为4.60 GHz,雷达散射截面为-50.86 dB m2。更重要的是,生成的NC层作为保护屏障可钝化磁性金属纳米颗粒的氧化,使CoNi@NC-Co@NC MCNCs在高湿高盐环境中具有卓越的耐腐蚀性能。本研究为制备基于蛋黄-壳NC结构的磁性MCNCs提供了新路径,同时实现了MAPs与耐腐蚀性能的协同优化。

关键词: MOF-on-MOF衍生策略, 蛋黄-壳结构, CoNi@NC-Co@NC, 微波吸收, 耐腐蚀性

Abstract: Constructing yolk-shell structured multicomponent nanocomposites (MCNCs) with abundant heterointerfaces is an effective strategy to simultaneously achieve high-efficiency microwave absorption and multifunctional applications. Herein, a metal-organic frameworks (MOF)-on-MOF derived strategy is proposed to produce yolk-shell structured CoNi@nitrogen-doped carbon (NC)-Co@NC MCNCs. By controlling the heat treatment temperature, CoNi@NC-Co@NC MCNCs with various graphitization degree are well-designed and produced by a simple co-precipitation route and heat treatment, which result in the tunable electromagnetic parameters and improved microwave absorption performances (MAPs). Amongst, the optimized CoNi@NC-Co@NC MCNCs exhibit the excellent MAPs, which achieve a minimum reflection loss of −62.17 dB at 1.75 mm, an effective absorption bandwidth of 4.60 GHz at 1.69 mm, and Radar Cross section of -50.86 dB m2. More importantly, the generated NC layer provides a protective barrier to passivate the oxidation of magnetic metal nanoparticles, thereby endowing CoNi@NC-Co@NC MCNCs with outstanding corrosion resistance performance in high-humidity and high-salinity environments. Overall, this work provides an alternative route for the production of yolk-shell NC-based magnetic MCNCs, which simultaneously achieves the synergistic optimization of MAPs and corrosion resistance performance.

Key words: MOF-on-MOF derived strategy, Yolk-shell structure, CoNi@NC-Co@NC, Microwave absorption, Corrosion resistance