Core-shell nanostructured CS/MoS2: A promising material for microwave absorption

Facile Synthesis of GNPs@NixSy@MoS2 Composites with Hierarchical Structures for Microwave Absorption

“…Hence, materials such as graphene [9,10,11,12], MoS 2 [7,13,14,15,16,17], and MXenes [18,19,20,21] are selected as EM absorbers. Heterostructure MoS 2 hybrids such as MoS 2 /Ni nanoparticles [22], MoS 2 /carbon nanotubes [23], core-shell NiS 2 @MoS 2 nanosphere [24], and self-assembled carbon sphere coated by MoS 2 nanosheets (CS/MoS 2 ) [13] are facile candidates for fabricating absorbers to reduce EM pollution. This is attributed to their sheet-like morphology, which can generate larger interfacial polarization and high dielectric loss.…”

MoS2 nanoparticle/activated carbon composite as a dual-band material for absorbing microwaves

“…As both MoS 2 and activated carbon are nonmagnetic materials, µ hence the values of was taken to be 1. The consists of two parts, the real part of permittivity µ ( represents the storage of energy whereas the imaginary part of permittivity ( represents the ε ′ ) ε ′′ ) energy dissipation 4 . 3,44 , where is the resistivity of an absorber, is the permittivity of free space, is (2 0 ) -1 ε 0 the electromagnetic (EM) wave frequency.…”

“…A two-dimensional transition metal dichalcogenide, molybdenum disulphide (MoS 2 ), has emerged as a new class of microwave absorbing material in recent years due to its large specific surface area and high dielectric properties [1][2][3][4] . 2D MoS 2 nanosheets prepared by Ning et al 5 using top down exfoliation method reported maximum reflection loss (RL max ) = -38.42 dB.…”

Cleaning of Graphite Particles Embedded in the Surface of Ductile Iron by Using a Novel Method

“…A low threshold thermal-chemical impact ablation mechanism of the film can be implemented under the effect of pulsed laser radiation with power density lower than 10 7 W/cm 2 [12,14] ( Figure 1(b)). Laser cleaning technique has been successfully applied to removal of paint and oxide layer on metal surfaces, cleaning of optical and electronic elements, and conservation of cultural heritage [15][16][17][18][19][20][21][22]. However, few research studies have been carried out on laser cleaning of ductile iron.…”