Constructing Two-, Zero-, and One-Dimensional Integrated Nanostructures: an Effective Strategy for High Microwave Absorption Performance.
A novel "201" nanostructure composite consisting of two-dimensional MoS2nanosheets, zero-dimensional Ni nanoparticles and one-dimensional carbon nanotubes (CNTs) was prepared successfully by a two-step method: Ni nanopaticles were deposited onto the surface of few-layer MoS2nanosheets by a wet chemical method, followed by chemical vapor deposition growth of CNTs through the catalysis of Ni nanoparticles. The as-prepared 201-MoS2-Ni-CNTs composites exhibit remarkably enhanced microwave absorption performance compared to Ni-MoS2or Ni-CNTs. The minimum reflection loss (RL) value of 201-MoS2-Ni-CNTs/wax composites with filler loading ratio of 30 wt % reached -50.08 dB at the thickness of 2.4 mm. The maximum effective microwave absorption bandwidth (RL< -10 dB) of 6.04 GHz was obtained at the thickness of 2.1 mm. The excellent absorption ability originates from appropriate impedance matching ratio, strong dielectric loss and large surface area, which are attributed to the "201" nanostructure. In addition, this method could be extended to other low-dimensional materials, proving to be an efficient and promising strategy for high microwave absorption performance.
Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures and Jiangsu Provincial Laboratory for NanoTechnology, Nanjing University , Nanjing 210093, China.
Yuan
Y
Sun
School of Physics and Technology, Wuhan University , Wuhan 430072, China.
Jianle
J
Xu
College of Science, Henan University of Technology , Zhengzhou 450001, China.
Wen
W
Qiao
Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures and Jiangsu Provincial Laboratory for NanoTechnology, Nanjing University , Nanjing 210093, China.|College of electronic Engineering, Nanjing Xiaozhuang University , Nanjing 210017, China.
Xiaobing
X
Xu
Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures and Jiangsu Provincial Laboratory for NanoTechnology, Nanjing University , Nanjing 210093, China.
Weili
W
Zhang
Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures and Jiangsu Provincial Laboratory for NanoTechnology, Nanjing University , Nanjing 210093, China.
Kaiyu
K
Zhang
Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures and Jiangsu Provincial Laboratory for NanoTechnology, Nanjing University , Nanjing 210093, China.
Xing
X
Zhang
Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures and Jiangsu Provincial Laboratory for NanoTechnology, Nanjing University , Nanjing 210093, China.
Xing
X
Chen
Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures and Jiangsu Provincial Laboratory for NanoTechnology, Nanjing University , Nanjing 210093, China.
Wei
W
Zhong
Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures and Jiangsu Provincial Laboratory for NanoTechnology, Nanjing University , Nanjing 210093, China.
Youwei
Y
Du
MoS2; Ni nanoparticles; carbon nanotubes; electromagnetic properties; microwave absorbing materials