RGO supported bimetallic MOFs-derived Co/MnO/porous carbon composite toward broadband electromagnetic wave absorption

Tailored ternary hetero-interfaces with in situ formed CNTs for effective electromagnetic coupling at low/mid-frequency

“…17 The oxygen-containing groups induce dipole polarization, which further improves the EM attenuation capability. 24 Disordered carbon and crystalline graphitic carbon are associated with the D-band (1360 cm À1 ) and G-band (1580 cm À1 ) as shown in Fig. 2(b) and Fig.…”

Kinetics-mediated assembly assisted precise synthesis of magnetic ordered mesoporous carbon nanospheres for ultra-efficient electromagnetic wave absorption

“…OMCN-D exhibited the lowest 3 ′′ values in the 2-9 GHz range, which might be ascribed to the impedance mismatch. 82 Moreover, the dielectric loss tangent (tan d E = 3 ′′ /3 ′ ) could be calculated according to 3 ′ and 3 ′′ and was used to assess the dielectric loss capacity. Generally, the higher the tan d E value is, the stronger the dielectric loss capacity lies in EMWAMs.…”

“…5e and f). 80–83 The eddy current effect can be further analysed according to the C 0 value ( μ ′′( μ ′) − 2 f − 1). 84 In general, the C 0 value would be constant when the eddy current effect is responsible for magnetic loss.…”

Construction of a hollow nickel–magnesium ferrite decorated nitrogen-doped reduced graphene oxide composite aerogel for highly efficient and broadband microwave absorption

“…7,8 However, because the impedance mismatch comes from its superior conductivity and the single dielectric loss mechanism, the microwave absorption performance of RGO is undesirable. 9–11…”

“…7,8 However, because the impedance mismatch comes from its superior conductivity and the single dielectric loss mechanism, the microwave absorption performance of RGO is undesirable. [9][10][11] Spinel ferrite has been widely used in the field of microwave absorption owing to its low manufacturing cost, favorable magnetic loss and good corrosion resistance. [12][13][14] However, its disadvantages such as large density, high filling ratio, poor absorption strength and narrow absorption bandwidth greatly limit its practical applications.…”