Three-dimensional biotemplate-loaded nickel sulfide vacancies engineered to promote the absorption of electromagnetic waves

Abstract

A simple hydrothermal method is used to realize the electromagnetic application of three-dimensional bio-template diatomite. The samples show excellent electromagnetic wave absorption properties after sulfurization, with an EAB of 9.86 GHz at a thickness of 1.44 mm. RLmin reaches −33.61 dB at 1 mm.

One-step sintering construction of electromagnetic synergistic Co7Fe3/Co@CBC nanocomposites for enhanced microwave absorption properties

“…43,44 Besides, the curves have straight tails at high frequencies for all samples, which represent the conduction losses affect the dielectric losses. 45 Therefore, the existence of semicircles confirms the multi-polarization process, which is beneficial for enhancing the dielectric performance. 46 Furthermore, twisted Cole–Cole semicircles may be observed in all ε ′– ε ′′ curves.…”