Thickness optimization towards microwave absorption enhancement in three-layer absorber based on SrFe12O19, SiO2@SrFe12O19 and MWCNTs@SrFe12O19 nanocomposites

Remarkable Magnetic Exchange Coupling via Constructing Bi‐Magnetic Interface for Broadband Lower‐Frequency Microwave Absorption

“…), or incorporation of magnetic and dielectric character istics that generate synergistic effect (MWCNTs@SrFe 12 O 19 , polyaniline@Ba 0.5 Sr 0.5 Fe 12 O 19 @MWCNTs, CoNi@SiO 2 @TiO 2 , Fe 3 O 4 @TiO 2 , etc.). [34][35][36][37][38][39][40][41] In this study, relying on the rationally designed coreshell structure of BaFe (12x) Co x O 19 @Fe 3 O 4 , suf ficient magnetic exchange coupling interaction is generated to trigger a significant enhancement of magnetic loss exceeding the Snoek's limitation and reach an ultrabroadband lowerfre quency absorption. The oneofakind composite is expected to outperform the magnetic metals with impressive MA properties and become a prospective lowerfrequency microwave absorber.…”

Synergistic effect of GO/SrFe12O19 as magnetic hybrid nanocatalyst for regioselective ring-opening of epoxides with amines under eco-friendly conditions

“…[13][14][15][16] Since their discovery in the 1950s there has been an increasing degree of interest in the hexagonal ferrites, 17 and their synthesis and study deserve a particular interest for R&D researchers. 16,[18][19][20] However, magnetic nanoparticles (MNPs) have gained the attention of many scientists due to their excellent physical and chemical properties compared to traditional bulk materials, such as superparamagnetism, high surface area, high surfaceto-volume ratio, simple separation under external magnetic elds, and high adsorption capacity. [21][22][23][24][25][26] Nowadays, it has been found that the dispersion of magnetic NPs on 2D materials such as graphene sheets is potentially turning into a new research topic due to their improved functionalities.…”

“…13–16 Since their discovery in the 1950s there has been an increasing degree of interest in the hexagonal ferrites, 17 and their synthesis and study deserve a particular interest for R&D researchers. 16,18–20…”

Polypyrrole Decorated Flower-like and Rod-like ZnO Composites with Improved Microwave Absorption Performance

“…These single-component EM materials generally have a narrow absorption band and low reflection loss. Therefore, to increase the MWA performance, new composite absorbing materials adjust the components, ratios, and structures of the composites by introducing conducting polymers [8][9][10][11][12][13], carbon materials [14][15][16], and other inorganic dielectric materials [17]. The combination of conductive polymers with semiconductor materials to improve the reflection loss of EM waves has attracted extensive attention from researchers.…”