Synergetic dielectric loss and magnetic loss towards superior microwave absorption through hybridization of few-layer WS2 nanosheets with NiO nanoparticles

Zhang, Deqing1,4; Xiong, Yingfei1; Cheng, Junye2; Chai, Jixing1; Liu, Tingting1; Ba, Xuewei1; Ullah, Sana2; Zheng, Guangping2; Yan, Ming3; Cao, Maosheng4

2020

10.1016/j.scib.2019.10.011

Science Bulletin   影响因子和分区

20959281

2095-9281

WS2 nanomaterials have attracted great attention in the field of electromagnetic wave absorption due to their high specific surface area, layered structure, and peculiar electronic properties. However, further improvements on their limited electromagnetic absorbing (EMA) capacity and bandwidth are urgently required for their practical application as EMA absorbents. In this work, WS2/NiO hybrids with heterostructures are prepared by a hydrothermal method and developed into EMA absorbents. The maximum reflection loss of the hybrids with 20% NiO loading could reach −53.31 dB at a thickness of 4.30 mm; the bandwidth with a reflection loss value of less than −10 dB is determined to be 13.46 GHz (4.54–18 GHz) when the thickness of the absorbent is between 3.5 and 5.5 mm. It is found that the enhanced EMA performance of WS2/NiO hybrids is caused by the addition of magnetic NiO, which could result in the interfaces between WS2 and NiO being responsible for the synergetic magnetic loss and dielectric loss in the hybrids. This work provides a new approach for the design of excellent EMA materials for practical applications.
© 2019 Science China Press

2D nanosheets WS2/NiO hybrids Hetero-structures Microwave absorption

SCI ; EI

英语

其他

National Natural Science Foundation of China[51977009]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:000508009300009

Elsevier B.V.

20194807749129

Bandwidth ; Dielectric devices ; Dielectric losses ; Electromagnetic wave absorption ; Electronic properties ; Nanomagnetics ; Nanosheets ; Nickel oxide ; Tungsten compounds

Magnetism: Basic Concepts and Phenomena:701.2 ; Dielectric Materials:708.1 ; Electromagnetic Waves:711 ; Information Theory and Signal Processing:716.1 ; Nanotechnology:761 ; Chemical Operations:802.3 ; Inorganic Compounds:804.2 ; Solid State Physics:933

Web of Science

1.School of Materials Science and Engineering, Qiqihar University, Qiqihar; 161006, China
2.Department of Mechanical Engineering, Hong Kong Polytechnic University, Hong Kong
3.Department of Materials Science and Engineering, and Shenzhen Key Laboratory for Additive Manufacturing of High-performance Materials, Southern University of Science and Technology, Shenzhen; 518055, China
4.School of Materials Science and Engineering, Beijing Institute of Technology, Beijing; 100081, China

Zhang, Deqing,Xiong, Yingfei,Cheng, Junye,et al. Synergetic dielectric loss and magnetic loss towards superior microwave absorption through hybridization of few-layer WS2 nanosheets with NiO nanoparticles[J]. Science Bulletin,2020,65(2):138-146.

Zhang, Deqing.,Xiong, Yingfei.,Cheng, Junye.,Chai, Jixing.,Liu, Tingting.,...&Cao, Maosheng.(2020).Synergetic dielectric loss and magnetic loss towards superior microwave absorption through hybridization of few-layer WS2 nanosheets with NiO nanoparticles.Science Bulletin,65(2),138-146.

Zhang, Deqing,et al."Synergetic dielectric loss and magnetic loss towards superior microwave absorption through hybridization of few-layer WS2 nanosheets with NiO nanoparticles".Science Bulletin 65.2(2020):138-146.