Microwave absorption performance and multiple loss mechanisms of three-dimensional porous Fe4N@Fe3O4@Fe/carbon composite

In Situ Encapsulation of Nanometals in Carbon Matrix from Hazardous Wastewater with Cogeneration of H2 Using Banana Pseudostem

“…Figure demonstrates that with the rise of temperature to 600 °C, the size of these generated spherical-shaped nanometals in the carbon matrix (∼31.6 nm) increases due to the agglomeration of particles (Figure ). The coaxial circular ring with intense bright spots in the SAED pattern (Figure ) reveals that the obtained nanometals in the carbon matrix are polycrystalline. , The mean particle size and Miller index obtained from TEM analysis are consistent with the average particle size evaluated from XRD analysis (Figure S4 and Table S2).…”

“…The coaxial circular ring with intense bright spots in the SAED pattern (Figure 9) reveals that the obtained nanometals in the carbon matrix are polycrystalline. 57,58 The mean particle size and Miller index obtained from TEM analysis are consistent with the average particle size evaluated from XRD analysis (Figure S4 and Table S2).…”

Facile fabrication of exfoliated g-C3N4/MWCNTs/Fe3O4 ternary composites with multi-component functional synergy for high-performance microwave absorption

“…Consequently, in this study (2–18 GHz), ferromagnetic (natural and exchange) resonance and eddy currents play a significant role as dominant loss mechanisms. 75 The eddy current loss factor C 0 can be used to understand complex magnetic loss behaviours, as in the equation below: 75,76 C 0 = μ ′′( μ ′) −2 f −1 = 2π μ 0 d 2 The C 0 – f curves of C/Fe 3 O 4 and CN/C-Fe 3 O 4 are shown in Fig. 9(d).…”

“…Consequently, in this study (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18), ferromagnetic (natural and exchange) resonance and eddy currents play a significant role as dominant loss mechanisms. 75 The eddy current loss factor C 0 can be used to understand complex magnetic loss behaviours, as in the equation below: 75,76…”

Absorption Performances of PLA-Montmorillonite Nanocomposites Thin Films in Salisbury and Rozanov Configurations: Influence of Aging and Mechanical Recycling

“…This means that recycling modifies the microscopic organization and dispersion of OMMT in neat PLA matrix, resulting in more disorder in the composite system that affects the interfacial polarization mechanism. The presence of several circles has been observed in many works [38][39][40]; it is associated to the existence of multiple dielectric Debye dielectric relaxation phenomena in the samples, as well as interfacial polarization mechanisms active at the multiple interfaces between the inclusions and the hosting PLA medium.…”