Jia, X.; Li, Z.; Ruan, C.; Lian, Y. The Improved Microwave Absorption Performance of the 3D Porous (Ni@NO-C)n/NO-C Composite Absorber. Nanomaterials2023, 13, 2772.
Jia, X.; Li, Z.; Ruan, C.; Lian, Y. The Improved Microwave Absorption Performance of the 3D Porous (Ni@NO-C)n/NO-C Composite Absorber. Nanomaterials 2023, 13, 2772.
Jia, X.; Li, Z.; Ruan, C.; Lian, Y. The Improved Microwave Absorption Performance of the 3D Porous (Ni@NO-C)n/NO-C Composite Absorber. Nanomaterials2023, 13, 2772.
Jia, X.; Li, Z.; Ruan, C.; Lian, Y. The Improved Microwave Absorption Performance of the 3D Porous (Ni@NO-C)n/NO-C Composite Absorber. Nanomaterials 2023, 13, 2772.
Abstract
Microwave absorbers with lightweight, good stability and high efficiency have attracted much attention for their applications in many contemporary fields. In this work, the 3D porous (Ni@NO-C)n/NO-C composite absorber was prepared by a wet chemistry method with Ni chains and melamine as precursors, in which NO-C (N,O-doped carbon) encapsulated Ni particles are homogenously dispersed in the 3D porous networks of NO-C in the form of (Ni@NO-C)n chains. The special microstructure of the as-prepared material is proved to be benefit for the improvement of its microwave adsorption performance. The as-synthesized (Ni@NO-C)n/NO-C composite ab-sorber exhibited an effective absorption bandwidth of 4.1 GHz and an extremely large reflection loss of -72.3 dB. The excellent microwave absorbing performances can be ascribed to the coopera-tive consequence of dielectric loss and magnetic loss along with the balance between attenuation capability and impedance match.
Keywords
N,O-doped carbon; magnetic metal; special microstructure; impedance match; reflection loss
Subject
Chemistry and Materials Science, Other
Copyright:
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