Diverse Metal–Organic Framework Architectures for Electromagnetic Absorbers and Shielding

Abstract

Metal–organic frameworks (MOFs) and their derivatives, featuring unique 3D microstructures and enhanced electromagnetic properties, are illuminating infinite possibilities for electromagnetic functional materials and devices, receiving significant attention from domestic and foreign researchers. Herein, the design strategy of the MOF monomer is investigated, and the electromagnetic response mechanism is systematically analyzed. Research is emphatically introduced regarding MOF‐based materials in microwave absorption and electromagnetic interference shielding. Finally, a clear insight on the quickly growing field is given, and the current challenges and future research directions are summarized and predicted.

Biomass-Derived Carbon Heterostructures Enable Environmentally Adaptive Wideband Electromagnetic Wave Absorbers

“…Based on the analysis of the EM parameters, the excellent EM absorption performance displayed by GC-8 can be attributed to the synergistic effect between the highly conductive carbon nanofibers and the graphite-like nanosheets with low conductivity, the interfacial polarization effect of these two structures, and the dipole polarization effect caused by the defects formed and multiple carbon heterocycles, are illustrated in Fig. S10 [ 70 , 71 ].…”

Genetic Dielectric Genes Inside 2D Carbon‐Based Materials with Tunable Electromagnetic Function at Elevated Temperature

“…[18][19][20][21][22][23][24][25][26][27] 2D carbon-based materials with large specific surface area, excellent conductivity, and lightweight have aroused huge response in the electromagnetic field. [28][29][30][31][32][33][34][35] Among them, graphene is endowed with tailorable active site, adjustable microstructure, and optimizable electromagnetic response, displaying a unique charm. Thus, graphene-based materials are considered to be important members in the aspect of microwave absorption and electromagnetic interference shielding.…”

Hollow MoC/NC sphere for electromagnetic wave attenuation: direct observation of interfacial polarization on nanoscale hetero-interfaces

“…For solving the spatial electromagnetic radiation, in recent decades, scientists have developed many groups of high-efficient electromagnetic wave absorbing materials (EWAMs), including carbon-based materials 1-3 , silicon carbides 4,5 , transition metal-based carbides 6,7 , oxides 8,9 , sulfides 10,11 , nitrides 12,13 , and ferromagnetic metal-based materials [14][15][16] . In the electromagnetic wave absorbing process, the combination of permittivity and permeability directly determines the electromagnetic wave storage and attenuation capacities of the materials [17][18][19][20][21] . It is an overall synergetic effect of intrinsic electrical and magnetic characteristic modulating by chemical-components, electron conductivity, electromagnetic balance, micro-nano structure.…”