Flower-like CeO2-ZnO/Ti3C2Tx Derivatives Nanostructures: Synthesis and Microwave Absorption Properties

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2025-07-11 DOI:10.1016/j.jallcom.2025.182141

Yufei Huang, Cankun Ma, Guojing Chen, Xinrui Wang, Zhenqian Ma, Chunpeng Chai

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Abstract

To eliminate the harmful effects of electromagnetic pollution and ensure the safety of human daily life, developing novel high-performance electromagnetic wave (EMW) absorption materials is crucial for practical applications. This work uses MXene Ti₃C₂T_x and ZIF-8 to prepare a series of Ce element doped ZIF-8/Ti₃C₂T_x composite materials with different molar contents, and obtain derivatives CeO₂-ZnO/Ti₃C₂T_x by the high-temperature pyrolysis method. Flower-like CeO₂-ZnO nanoparticles are anchored on the surface of Ti₃C₂T_x. With an appropriate molar content of Ce (4%), CZT-600-2 sample exhibits the best EMW absorption performance, with the minimum reflection loss of -44.80 dB (1.2 mm) and the optimal effective absorption bandwidth of 3.81 GHz (1.3 mm). The results reveal that rare earth element doping is an effective method to attain high performance EMW absorption materials with “thin, light, wide, strong” characteristics.

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花状CeO2-ZnO/Ti3C2Tx衍生物纳米结构的合成及其微波吸收性能

为了消除电磁污染的有害影响，保障人类日常生活的安全，开发新型高性能电磁波吸收材料具有重要的实际应用价值。本工作以MXene Ti3C2Tx和ZIF-8为原料，制备了一系列不同摩尔含量的Ce元素掺杂ZIF-8/Ti3C2Tx复合材料，并通过高温热解法制备了CeO2-ZnO/Ti3C2Tx衍生物。花状CeO2-ZnO纳米颗粒锚定在Ti3C2Tx表面。当Ce的摩尔含量为4%时，CZT-600-2样品的EMW吸收性能最佳，反射损耗最小为-44.80 dB (1.2 mm)，有效吸收带宽为3.81 GHz （1.3 mm）。结果表明，稀土元素掺杂是获得具有“薄、轻、宽、强”特性的高性能EMW吸收材料的有效方法。

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来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.