Interfacial Electrochemical Self-Assembly Enables Mechanically Robust Infrared Stealth Coatings on Complex-Shaped Metallic Substrates.

IF 8.3 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces Pub Date : 2025-06-21 DOI:10.1021/acsami.5c07687

Qiang Wang,Chenghan Chang,Yujuan Li,Dongqing Zuo,Xuran Xu,Jingyi Zhang,Tiancai Zhang,Zilong Cao,Yongqiang Jia,Jianhua Xu,Jiajun Fu

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Abstract

Transition metal carbides/carbonitrides (MXene) have emerged as highly promising infrared stealth coating materials due to their exceptional low infrared emissivity and high visible light absorption. Conventional coating techniques─such as blade coating, spraying, and spin-coating, the primary methods for existing MXene coatings─require specific substrate properties and face significant challenges in conforming to geometrically complex surfaces. To address these limitations, we developed an electrochemical ion-diffusion-induced gelation approach for fabricating MXene-based composite coatings (Fe2+ M/G). This method enables uniform deposition on substrates of arbitrary geometry while achieving remarkable mechanical strength (198.31 MPa) and infrared stealth capability (infrared emissivity: 0.19). Furthermore, the coating exhibits exceptional electrical conductivity (3571.4 S cm-1), enabling dual functionality: (1) an average electromagnetic shielding effectiveness of 49.35 dB in the X-band and (2) rapid Joule heating (reaching 84 °C at 1.5 V in 120 s), suitable for low-temperature deicing applications. Beyond its core infrared stealth performance, this multifunctional coating system integrates superior physical properties, offering both fundamental insights and practical solutions for developing advanced stealth materials with extended operational capabilities.

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界面电化学自组装实现了复杂形状金属基板上机械坚固的红外隐身涂层。

过渡金属碳化物/碳氮化物（MXene）由于其低红外发射率和高可见光吸收率而成为一种非常有前途的红外隐身涂层材料。传统的涂层技术，如刀片涂层、喷涂和旋转涂层，是现有MXene涂层的主要方法，需要特定的基材性能，并且在符合几何复杂表面方面面临重大挑战。为了解决这些限制，我们开发了一种电化学离子扩散诱导凝胶化方法来制造mxene基复合涂层（Fe2+ M/G）。该方法能够在任意几何形状的衬底上均匀沉积，同时获得显著的机械强度（198.31 MPa）和红外隐身能力（红外发射率：0.19）。此外，该涂层具有优异的导电性（3571.4 S cm-1），具有双重功能：(1)x波段平均电磁屏蔽效率为49.35 dB;(2)快速焦耳加热（在1.5 V下120 S内达到84°C），适用于低温除冰应用。除了其核心的红外隐身性能外，这种多功能涂层系统集成了卓越的物理性能，为开发具有扩展操作能力的先进隐身材料提供了基本见解和实用解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Materials & Interfaces 工程技术-材料科学：综合

CiteScore

16.00

自引率

6.30%

发文量

4978

审稿时长

1.8 months

期刊介绍： ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.