Salt template-steered sintering synthesis of flaky C/Co composites for ultra-wide band microwave assimilation

In situ generated gas bubble-directed self-assembly of multifunctional MgO-based hybrid foams for highly efficient thermal conduction, microwave absorption, and self-cleaning

“…In light of JCPDS cards [cubic Co: 15-0806; hexagonal Co: 05-0727], Co 0 with cubic and hexagonal phases is successfully produced in MgO/Co/C foams. 29 The face-centered cubic (FCC) Co 0 has three characteristic peaks at 44.221, 51.521, and 75.851, corresponding to the crystal planes of (111), (200), and (220), 30 respectively. The hexagonal Co 0 presents three weak diffraction peaks at 41.71, 47.61, and 75.91, which are related to (100), (101), and (110) crystal planes (JCPDS No.…”

“…7 Frequency characteristics: (a1)-(f1) 3D RL plots, (a2)-(f2) effective absorption bandwidth (EABW, RL rÀ10 dB) and optimal ratio of bandwidth to thickness (EABW/d) of MgO/Co/C foams formed under various Co 2+ content (j, mol%). The comprehensive EMWAP comparison of MgO/Co/C foams with previously reported absorbers: 10,14,15,18,21,30,31,[49][50][51][52][53][54][55][56][57][58][59][60][61][62][63] (g1) EABW/d and (g2) RL min .…”

“…Also, the value is 1.05-10.88 times greater than those of other absorbers (0.5-5.18 GHz mm À1 ). 10,15,18,21,30,31,[49][50][51][52][53][54][56][57][58][59][60][61][62][63] Overall, MgO/Co/C foams have bright application prospects as a highperformance EMW absorber in the electronics industry due to their strong absorption, wide EABWs, and thin thickness.…”

Magneto-Orientated Graphite Double-Layer Homo-Structure with Broadband Microwave Absorption

“…The results indicate that, in our material, the magnetic loss is very weak and the dielectric loss serves as the key factor to determine the electromagnetic losses. [25][26][27][28][29][30] It is worth noting at this point that the magnetic field intensity effect on the observed magneto-alignment GMFs has been examined (Fig. S11).…”