N-doped branched metal–organic framework derivatives to boost multiband microwave absorption with ultrathin thickness

Zhang, Zhe; Cui, Jiewu; Yu, Dongbo; Liu, Jiaqin; Zhang, Pengjie; Zhang, Yong; Ma, Song; Wang, Linjie; Deng, Guangsheng; Wu, Yucheng

doi:10.1039/d3ma01035j

Mater. Adv.

2024

DOI: 10.1039/d3ma01035j

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N-doped branched metal–organic framework derivatives to boost multiband microwave absorption with ultrathin thickness

Zhe Zhang,

Jiewu Cui,

Dongbo Yu

et al.

Abstract: Although multiband compatible electromagnetic wave absorption (EMWA) materials are in demand, easy fabrication of lightweight and thin EMWA materials is challenging. Herein, rod-like CoNi–MOF–74 precursors were prepared, and then a...

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In situ Mechanical Foaming of Hierarchical Porous MoC for Assembling Ultra‐light, Self‐cleaning, Heat‐insulation, Flame‐retardant, and Infrared‐stealth Device

Zhang,

Tian,

et al. 2024

Adv Funct Materials

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Molybdenum carbide (MoC) integrated into a carbon matrix, known for its robust interfacial polarization, emerges as a promising ultra‐lightweight EM wave absorber. However, the fabrication of such materials remains a formidable challenge. Herein, a facile and scalable strategy for preparing MoC‐incorporated carbon matrix employing ZnMo‐HZIF foam material through ball‐milling foaming and calcination process as a promising electromagnetic wave materials (EWAMs). In detail, the 3D foam structure reaches impedance matching, and heterogeneous interfaces of N‐doped MoC‐incorporated carbon material (MoC/NC) promote the dipolar/interfacial polarization, confirmed by the hologram. Mo defects induced the charge transfers, displaying an enhanced interfacial polarization. At 15 wt.%, the minimum reflection loss of the obtained sample at 2.5 mm reaches −47.56 dB, and the effective absorption bandwidth spans 4.40 GHz, nearly covering the full X band. Additionally, the assembly device testing demonstrates their excellent self‐cleaning, heat‐insulation, flame retardancy, and infrared stealth properties. This work presents a new perspective on the synergistic effect of structure and components on electromagnetic wave absorption performance and provides a new approach for preparing lightweight and high‐performance MOF‐based electromagnetic wave absorbing materials.

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In situ Mechanical Foaming of Hierarchical Porous MoC for Assembling Ultra‐light, Self‐cleaning, Heat‐insulation, Flame‐retardant, and Infrared‐stealth Device

Zhang,

Tian,

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

Template-directed in situ grown bimetallic nanoarchitectures with hydroxide active site enriched multi-charge transfer routes for energy storage

Savariraj,

Thondaiman,

Sivakumar

et al. 2024

J. Mater. Chem. A

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N-doped branched metal–organic framework derivatives to boost multiband microwave absorption with ultrathin thickness

Abstract: Although multiband compatible electromagnetic wave absorption (EMWA) materials are in demand, easy fabrication of lightweight and thin EMWA materials is challenging. Herein, rod-like CoNi–MOF–74 precursors were prepared, and then a...

Cited by 2 publications

References 61 publications

In situ Mechanical Foaming of Hierarchical Porous MoC for Assembling Ultra‐light, Self‐cleaning, Heat‐insulation, Flame‐retardant, and Infrared‐stealth Device

In situ Mechanical Foaming of Hierarchical Porous MoC for Assembling Ultra‐light, Self‐cleaning, Heat‐insulation, Flame‐retardant, and Infrared‐stealth Device

Template-directed in situ grown bimetallic nanoarchitectures with hydroxide active site enriched multi-charge transfer routes for energy storage

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