Fabrication of NiO/NiCoO Mixtures As Excellent Microwave Absorbers

Overview

Journal Nanoscale Res Lett

Publisher Springer

Specialty Biotechnology

Date 2019 May 9

PMID 31065819

Citations 2

Authors

Xiankun Cheng

Xiangbo Zhou

Shipeng Wang

Zhongliang Liu

Qinzhuang Liu

Yongxing Zhang

Qiangchun Liu

Bing Li

Affiliations

Soon will be listed here.

Abstract

The NiO/NiCoO mixtures with unique yolk-shell structure were synthesized by a simple hydrothermal route and subsequent thermal treatment. The elemental distribution, composition, and microstructure of the samples were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), and scanning electron microscope (SEM), respectively. The microwave absorption property was investigated by using vector network analysis (VNA). The results indicated that the excellent electromagnetic wave absorption property of the NiO/NiCoO mixtures was achieved due to the unique yolk-shell structure. In detail, the maximum reflection loss (RL) value of the sample reached up to - 37.0 dB at 12.2 GHz and the absorption bandwidth with RL below - 10 dB was 4.0 GHz with a 2.0-mm-thick absorber. In addition, the NiO/NiCoO mixtures prepared at high temperature, exhibited excellent thermal stability. Possible mechanisms were investigated for improving the microwave absorption properties of the samples.

Citing Articles

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