Effective electromagnetic wave absorption strategy: Unlocking the potential of NiCo2O4 as an absorber

IF 2 3区化学 Q4 CHEMISTRY, PHYSICAL Chemical Physics Pub Date : 2024-08-13 DOI:10.1016/j.chemphys.2024.112415

Mingyang Gao , Shicheng Wang , Zexuan Wang , Simeng Wang , Yushu Sun , Qianyun Li , Sen Lei , Qiang Li , Zhiyong Zhang , Xiaolong Ma , Wu Zhao

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Abstract

This study addresses a scientific challenge by elucidating the influence of calcination temperature on the properties and electromagnetic wave absorption capabilities of NiCo₂O₄, a material whose performance is inherently tied to its preparation process. Specifically, we systematically investigate how varying calcination temperatures not only diversify the material’s composition and morphology but also enhance its electromagnetic wave absorption properties. By controlling the calcination temperature, we not only achieve the successful synthesis of NiCo₂O₄ but also unravel intricate correlations among calcination conditions, material composition, and wave absorption performance. Notably, NiCo₂O₄ sample calcined at 400 °C exhibits remarkable electromagnetic wave absorption, marked by an exceptional maximum reflection loss of −53.93 dB and a broad absorption bandwidth spanning 6.24 GHz. These insights contribute to advancing the frontiers of NiCo₂O₄ utilization, particularly in the realm of electromagnetic wave absorption and beyond, underscoring the novelty and impact of our research.

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有效的电磁波吸收策略：挖掘镍钴氧化物作为吸收剂的潜力

本研究通过阐明煅烧温度对镍钴氧化物（NiCo2O4）特性和电磁波吸收能力的影响，解决了这一科学难题。具体来说，我们系统地研究了不同的煅烧温度不仅如何使材料的成分和形态多样化，而且如何增强其电磁波吸收特性。通过控制煅烧温度，我们不仅成功合成了镍钴氧化物，还揭示了煅烧条件、材料成分和吸波性能之间错综复杂的关系。值得注意的是，在 400 °C 下煅烧的镍钴氧化物样品具有出色的电磁波吸收性能，其最大反射损耗高达 -53.93 dB，吸收带宽宽达 6.24 GHz。这些见解有助于推动镍钴氧化物利用的前沿发展，特别是在电磁波吸收及其他领域，凸显了我们研究的新颖性和影响力。

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来源期刊

Chemical Physics 化学-物理：原子、分子和化学物理

CiteScore

4.60

自引率

4.30%

发文量

278

审稿时长

39 days

期刊介绍： Chemical Physics publishes experimental and theoretical papers on all aspects of chemical physics. In this journal, experiments are related to theory, and in turn theoretical papers are related to present or future experiments. Subjects covered include: spectroscopy and molecular structure, interacting systems, relaxation phenomena, biological systems, materials, fundamental problems in molecular reactivity, molecular quantum theory and statistical mechanics. Computational chemistry studies of routine character are not appropriate for this journal.