Bio-based derived carbon materials for permittivity metamaterials: dual efficacy of electromagnetic wave protection and Joule heating.

IF 12.2 2区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Materials Horizons Pub Date : 2025-06-02 DOI:10.1039/d5mh00379b

Chenchen Wang, Xiuyi Lin, Chuanshuang Hu, Yao Ding, Zhuoqun Wang, Yonghui Zhou, Xi Lin, Jiangtao Xu

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引用次数: 0

Abstract

Epsilon-negative metamaterials (ENMs) have attracted extensive research interest due to their unique physical properties and advanced applications in electromagnetic fields. In this study, carbonized wood@Prussian blue derivative (CW@PBD) metacomposites were fabricated from a carbonized wood@Prussian blue analogue (PBA). By varying the PBD content, the negative permittivity constant of the supercomposite can be tuned between -45 and -20. The CW@PBD metacomposites exhibit outstanding electromagnetic interference (EMI) shielding effectiveness of 39 dB, with a significant 40.9% increase in absorption loss (SE_A). Notably, as the PBD content rises, the CW@PBD composites transform from EMI shielding to microwave absorption. The minimum reflection loss (RL_min) reaches -49.2 dB, and the effective absorption bandwidth (EAB) covers the entire X-band. Moreover, the CW@PBD metacomposites demonstrate remarkable Joule heating capabilities, achieving a steady-state saturation temperature (T_s) of 255.68 °C at 3 V. This research offers a promising approach for synthesizing ENMs, endowing biomass-based materials with desired functions for electromagnetic applications.

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用于介电常数超材料的生物基衍生碳材料：电磁波保护和焦耳加热的双重功效。

负epsilon超材料（enm）由于其独特的物理性质和在电磁场中的先进应用而引起了广泛的研究兴趣。本研究以碳化的wood@Prussian蓝色类似物（PBA）为原料制备碳化wood@Prussian蓝色衍生物（CW@PBD）超复合材料。通过改变PBD含量，复合材料的负介电常数可在-45 ~ -20之间调节。CW@PBD复合材料对电磁干扰（EMI）的屏蔽效果为39 dB，吸收损耗（SEA）显著提高40.9%。值得注意的是，随着PBD含量的增加，CW@PBD复合材料从EMI屏蔽转变为微波吸收。最小反射损耗（RLmin）达到-49.2 dB，有效吸收带宽（EAB）覆盖整个x波段。此外，CW@PBD超复合材料表现出显著的焦耳加热能力，在3v下达到255.68°C的稳态饱和温度（Ts）。这项研究为电磁材料的合成提供了一种很有前途的方法，使生物质基材料具有电磁应用所需的功能。

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

Materials Horizons CHEMISTRY, MULTIDISCIPLINARY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

18.90

自引率

2.30%

发文量

306

审稿时长

1.3 months

期刊介绍： Materials Horizons is a leading journal in materials science that focuses on publishing exceptionally high-quality and innovative research. The journal prioritizes original research that introduces new concepts or ways of thinking, rather than solely reporting technological advancements. However, groundbreaking articles featuring record-breaking material performance may also be published. To be considered for publication, the work must be of significant interest to our community-spanning readership. Starting from 2021, all articles published in Materials Horizons will be indexed in MEDLINE©. The journal publishes various types of articles, including Communications, Reviews, Opinion pieces, Focus articles, and Comments. It serves as a core journal for researchers from academia, government, and industry across all areas of materials research. Materials Horizons is a Transformative Journal and compliant with Plan S. It has an impact factor of 13.3 and is indexed in MEDLINE.