Recent progress of perovskite oxides and their hybrids for electromagnetic wave absorption: a mini-review

Facile synthesis of ultralight S-doped Co3O4 microflowers@reduced graphene oxide aerogels with defect and interface engineering for broadband electromagnetic wave absorption

“…There are two significant criteria to determine the EMA performance of the absorber: (1) when the impedance matching value ( Z ) is close to 1, the EMW can enter the absorber to the maximum extent; (2) the attenuation constant ( α ) reveals the EMW attenuation ability of the absorber t . The Z is calculated by the following equation: 73,74 …”

Ambient-pressure ozone treatment enables tuning of oxygen vacancy concentration in the La1−xSrxFeO3−δ (0 ≤ x ≤ 1) perovskite oxides

“…[12][13][14] The oxygen vacancies can also affect other applications of oxides and their hybrids, such as electromagnetic wave absorption. [15][16][17][18] However, a versatile strategy of controlling the oxygen vacancy in metal oxides remains lacking. Hence, this work focuses on method development of tuning the oxygen vacancy density of metal oxides, in particular perovskite oxides such as La 1-x Sr x FeO 3-δ (0 ≤ x ≤ 1, 0 ≤ δ ≤ 0.5x), which are known to have a wide range of non-stoichiometry.…”

Enhanced thermal conductivity of polycarbonate‐based composites by constructing a dense filler packing structure consisting of hybrid boron nitride and flake graphite

“…Moreover, using immiscible blends as the host matrices was found helpful in improving thermal conductivity [34][35][36][37] ; however, the use of immiscible blends could, to some extent, deteriorate the mechanical properties due to the incompatibility between different polymer components and added fillers. 38 Studies showed that the use of hybrid fillers or components would optimize the performance of functional fillers, especially in terms of electromagnetic interference shielding, 39,40 electromagnetic wave absorption, [41][42][43] electrical conductivity, 44 and so forth. In addition, hybrid filler loading was proved favorable in enhancing thermal conductivity of polymer composites.…”