Ma Mingliang, Bi Yuxin, Tong Zhouyu, Liu Yanyan, Lyu Ping, Wang Rongzhen, Ma Yong, Wu Guanglei, Liao Zijian, Chen Yan
School of Civil Engineering, Qingdao University of Technology Qingdao 266033 People's Republic of China
School of Material Science and Engineering, Shandong University of Science and Technology Qingdao 266590 People's Republic of China.
RSC Adv. 2021 May 5;11(27):16572-16591. doi: 10.1039/d1ra01880a. eCollection 2021 Apr 30.
Microwave absorbing materials (MAM) have attracted considerable attention over the years in stealth and information technologies. Metal-organic framework (MOF) with a unique microstructure and electronic state has become an attractive focus as self-sacrificing precursors of microwave absorbers. The MOF-derived porous carbon (PC) materials exhibit a high absorbing performance due to the stable three-dimensional structure and homogeneous distribution of metal particles. MOF-derived PC materials are promising for ideal MAM tuning of the structure and composition, resulting in appropriate impedance matching and the synergistic effect between magnetic and dielectric loss. In this review, the MOF-derived PC materials and their basic absorption mechanisms (dielectric loss, magnetic loss and impedance matching) are introduced, as well as the characters of various MOF-derived PC materials. In addition, this review provides a comprehensive introduction and tabulates the recent progress based on the classification of the MOF-derived metallic state, such as pure PC (without reduced metals), mono-metal/PC, multi-metal/PC, metal oxides/PC and other derived PC composites. Finally, the challenges faced by MOF-derived PC materials are overviewed, and their further development is mentioned.
多年来,微波吸收材料(MAM)在隐身和信息技术领域备受关注。具有独特微观结构和电子态的金属有机框架(MOF)作为微波吸收剂的自牺牲前驱体已成为一个有吸引力的研究焦点。MOF衍生的多孔碳(PC)材料由于其稳定的三维结构和金属颗粒的均匀分布而表现出高吸收性能。MOF衍生的PC材料有望通过对结构和组成进行理想的调控,实现适当的阻抗匹配以及磁损耗和介电损耗之间的协同效应。在这篇综述中,介绍了MOF衍生的PC材料及其基本吸收机制(介电损耗、磁损耗和阻抗匹配),以及各种MOF衍生的PC材料的特性。此外,本综述基于MOF衍生金属态的分类进行了全面介绍并列出了最新进展,如纯PC(无还原金属)、单金属/PC、多金属/PC、金属氧化物/PC和其他衍生PC复合材料。最后,概述了MOF衍生PC材料面临的挑战,并提及了它们的进一步发展。