MOFs 衍生物法制备的 NiCo/C 材料的吸收特性及调控机理研究

IF 2.7 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Letters Pub Date : 2024-09-01 DOI:10.1016/j.matlet.2024.137285

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引用次数: 0

摘要

为了解决电磁污染问题，以 NiCo-MOFs-74 材料为母体材料，采用高温碳化方法制备了新型 NiCo/C 复合材料。结果表明，NiCo/C 复合材料的吸波性能随 Ni/Co 摩尔比的变化而发生显著变化。当 Ni/Co 摩尔比为 1:1 时，Ni1Co1/C 复合材料在 16.75 GHz 频率下的吸波性能最好，2.5 mm 厚度下的最佳反射损耗为 -51.5 dB，有效吸波带宽为 3.39 GHz。

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Study on the absorbing properties and regulatory mechanism of NiCo/C materials prepared by MOFs derivative method

In order to solve the electromagnetic pollution problem, NiCo-MOFs-74 material was used as the parent material, and the new NiCo/C composite was prepared by high temperature carbonization method. The results show that the wave absorbing properties of NiCo/C composites change significantly with the change of the molar ratio of Ni/Co. When the molar ratio of Ni/Co is 1:1, the absorption performance of Ni₁Co₁/C composite is the best at the frequency of 16.75 GHz, the best reflection loss at 2.5 mm thickness is −51.5 dB, and the effective absorption bandwidth is 3.39 GHz.

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来源期刊

Materials Letters 工程技术-材料科学：综合

CiteScore

5.60

自引率

3.30%

发文量

1948

审稿时长

50 days

期刊介绍： Materials Letters has an open access mirror journal Materials Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Materials Letters is dedicated to publishing novel, cutting edge reports of broad interest to the materials community. The journal provides a forum for materials scientists and engineers, physicists, and chemists to rapidly communicate on the most important topics in the field of materials. Contributions include, but are not limited to, a variety of topics such as: • Materials - Metals and alloys, amorphous solids, ceramics, composites, polymers, semiconductors • Applications - Structural, opto-electronic, magnetic, medical, MEMS, sensors, smart • Characterization - Analytical, microscopy, scanning probes, nanoscopic, optical, electrical, magnetic, acoustic, spectroscopic, diffraction • Novel Materials - Micro and nanostructures (nanowires, nanotubes, nanoparticles), nanocomposites, thin films, superlattices, quantum dots. • Processing - Crystal growth, thin film processing, sol-gel processing, mechanical processing, assembly, nanocrystalline processing. • Properties - Mechanical, magnetic, optical, electrical, ferroelectric, thermal, interfacial, transport, thermodynamic • Synthesis - Quenching, solid state, solidification, solution synthesis, vapor deposition, high pressure, explosive