Multifunctional chitosan-derived MnO@C aerogels with high radar-infrared compatible stealth

IF 10.5 2区材料科学 Q1 CHEMISTRY, PHYSICAL Carbon Pub Date : 2024-11-01 DOI:10.1016/j.carbon.2024.119789

Shi Jin , Haixia Huang , Xianlong Zhang , Xueping Wu , Kui Wang

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Abstract

The increasing demand for advanced detection technologies has highlighted the need for materials with efficient electromagnetic wave absorption (EMWA) and thermal stealth, crucial for radar-infrared compatibility. In this study, we synthesized honeycomb-like porous MnO@C aerogels via the sol-gel method, achieving remarkable multifunctional properties. The MnO@C-10 wt% (10 wt% Mn) exhibited a minimum reflection loss (RL_min) of −54.08 dB at an optimum thickness of 3.2 mm and a maximum effective absorption bandwidth (EAB) of 5.96 GHz at 2.6 mm. Additionally, it demonstrated a significant reduction in radar scattering cross section (RCS) of 27.2 dB m² at 0^o detection angle. The material's infrared stealth was confirmed by its ability to maintain a surface color consistent with its surroundings and a surface temperature of approximately 30 °C after heating at 90 °C for 1 h, highlighting its superior infrared stealth and thermal insulation capabilities. Furthermore, MnO@C-10 wt% showed exceptional mechanical robustness, supporting a load of 57,594 times its weight, and exhibited excellent flame resistance, retaining its integrity under an alcohol lamp flame. The synergistic interaction between MnO and biomass-derived carbon offers a novel approach to developing multifunctional materials with integrated radar and infrared stealth functionalities, paving the way for advanced stealth technologies.

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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.