Facile synthesis of NiS₂@MoS₂core–shell nanospheres for effective enhancement in microwave absorption

Abstract

Core–shell structural NiS2@MoS2 nanospheres have been successfully fabricated and they possess enhanced microwave absorption properties as compared to single NiS2 nanospheres or MoS2 nanoplates due to this core–shell structure.

Synthesis of Controllable Nickel Chalcogenide Nano‐Hollow Spheres and Their Tunable Absorbing Properties

“…Nowadays, transition metal dichalcogenide (TMDCs) has become a research hotspot in the field of electromagnetic wave absorption because of their low density, distinct size effect and special nanostructure. [16][17][18][19] TMDCs are a class of typical semiconductor materials with excellent performance, and have become a research hotspot in related fields. Ning and co-workers have constructed few-layered MoS 2 nanosheets and found that the minimum reflection loss of paraffin-based composites (60 wt%) is À 38.42 dB at a thickness of 2.4 mm, which is almost 4 times higher than that of MoS 2 -bulk-based composite materials.…”

Reduced graphene oxide decorated with octahedral NiS2/NiS nanocrystals: facile synthesis and tunable high frequency attenuation

“…Zhao and co-workers 2 have constructed hierarchical hollow CuS microspheres and found that the minimum reection loss of paraffin-based composites (50 wt%) is À17.5 dB and the effective bandwidth is 3.0 GHz with thin absorber thickness of 1.1 mm. Other metal suldes such as CdS, 19 Bi 2 S 3 , 20 CoS, 21 PbS, 22 NiS 2 @MoS 2 , 23 etc. have been demonstrated as novel microwave absorbers with a remarkable reection loss.…”

Microwave Synthesized In2S3@CNTs with Excellent Properties inLithium‐Ion Battery and Electromagnetic Wave Absorption

“…Many chalcogenide materials, such as MoS 2 , CoS 2 , NiS 2 , have been reported as an electromagnetic wave absorber with high RL (above -40 dB). [2,44,45] The thickness of In 2 S 3 @CNTs nanocomposite is less than that reported in literatures (MoS 2 , [44] MoS 2 /rGo, [46] CoS 2 /rGo, [2] NiS 2 @MoS 2 [45] ). The RL value less than -10 dB (electromagnetic wave absorption 90%) can be realized with bandwidth of 4.4 GHz at the In 2 S 3 @CNTs nanocomposite thickness of 1.27 mm.…”