Bio-inspired MOFs derived spiral laminar nanocomposites: A new frontier in efficient electromagnetic absorption and versatility applications

IF 10.5 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Pub Date : 2025-02-24 DOI:10.1016/j.carbon.2025.120159

Zhen Xiang , Junwei Wang , Haiyuan Wang , Tao Wu , Bin Yuan , Xiang Li , Wei Lu

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引用次数: 0

Abstract

Bionic structures, characterized by their intrinsic scalability and design flexibility, have emerged as a transformative strategy for the development of multifunctional high-performance microwave absorption materials. Despite this potential, significant challenges persist in the precise integration of biomimetic structures into microwave absorbers, with the structure-property relationship governing microwave dissipation remaining poorly understood. Herein, we demonstrated a thermal modulation strategy to synthesize the spiral-laminated Co@C nanocomposites through controlled pyrolysis of bioinspired metal-organic frameworks (MOFs) template. Inspired by natural hierarchical structures, the synergistic combination of spiral laminar structure and phase composition enabled optimal the impedance matching while enhancing electromagnetic attenuation. Mechanistic investigations revealed that the unique architecture facilitated the synergistic effects of the polarization relaxation and magnetic resonance within the spiral laminar nanocomposites. The optimized absorber achieved exceptional microwave absorbing performances with a thin thickness (1.8 mm), broadband absorption (5.3 GHz), and high-efficiency reflection loss intensity (−51.2 dB). Furthermore, the multicomponent and spiral laminar architecture endowed nanocomposites with multifunctional capabilities including favorable waterproofing, flame-retardancy and infrared shielding efficiency. This work established a novel paradigm for bioinspired structural engineering of MOF-derived nanocomposites, contributing to their exceptional performance in electromagnetic absorption and versatility applications.

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来源期刊

Carbon 工程技术-材料科学：综合

CiteScore

20.80

自引率

7.30%

发文量

审稿时长

23 days

期刊介绍： The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.