Porous magnetic carbon CoFe alloys@ZnO@C composites based on Zn/Co-based bimetallic MOF with efficient electromagnetic wave absorption

Interfacial engineering of a tri-phase CoFe/CoFeOx/Co–Fe3O4electrocatalyst for promoting the oxygen evolution reaction

“…3a, from which it can be observed that three pairs of peaks at 778.8 eV and 794.7 eV, 780.4 eV and 795.6 eV, and 782.5 eV and 796.4 eV are well deconvoluted, associated with zero-valent Co (Co 0 ), trivalent Co (Co 3+ ) and divalent Co (Co 2+ ), and two satellite peaks at 786.9 eV and 802.9 eV accompanied as well. 30,31 In the Fe 2p core level spectrum (Fig. 3b), three spin-orbit doublets, i.e., Fe 2+ 2p and Fe 3+ 2p, were deconvoluted.…”

State of the Art and Prospects in Metal-Organic Framework-Derived Microwave Absorption Materials

“…Both of them consist of real parts ( , ) and imaginary parts ( , ): the real parts represent the ability of storing electrical or magnetic energy, while the imaginary parts represent the ability of energy dissipation (Eqs. 1 and 2 ) [ 69 , 70 ]. …”

“…Similarly, Wu’s group synthesized CoFe alloys@ZnO@C composites by directly carbonizing Fe 2 O 3 @ZnCo-MOF at 650 °C (Fig. 12 d) [ 70 ]. The obtained CoFe alloys and ZnO nanocomposites were evenly distributed in carbon matrix, and some carbon nanotubes appeared in the surface (Fig.…”

“…g Schematic illustration of the MA mechanism of CoFe alloys@ZnO@C. Reprinted with permission from Ref. [ 70 ] …”

Facile Preparation of Light‐Weight Polyetheretherketone/Graphite/FeCo Ternary Heterogeneous Composite Foam with High Compressive Strength and Excellent Integrated Electromagnetic Wave Absorption Performance

“…With the continuous development of science and technology, electromagnetic waves (EMWs) have played a great role in all aspects of our lives. [1][2][3] Especially the constantly upgraded electronic products, while providing great convenience to human the composite materials due to the unique microscopic morphology and interface characteristics. Tang et al [29] synthesized Ni/SiC/C composite nanofibers via electrospinning and sputtering, and the composite nanofibers with an absorbent thickness of 5 mm presents an RL min of approximately −32.3 dB at 4.3 GHz.…”