A core–shell polypyrrole@silicon carbide nanowire (PPy@SiC) nanocomposite for the broadband elimination of electromagnetic pollution

Abstract

In this study, a convenient process has been developed for the in situ self-assembly preparation of core–shell PPy@SiC nanocomposites, which have been used for the elimination of electromagnetic pollution.

High-efficient production of SiC/SiO 2 core-shell nanowires for effective microwave absorption

“…Silicon carbide (SiC) nanomaterials, as one of the most important semiconductors, have been considered as promising candidates for remarkable MA materials due to their unique properties, such as low density, high thermal stability, excellent chemical resistivity, and good mechanical strength [29]. These unique properties are highly beneficial in the field of spacecrafts and aircrafts [30]. However, the poor dielectric properties caused by single polarization and low conductivity limit their applications as ideal MA materials [30,31].…”

“…These unique properties are highly beneficial in the field of spacecrafts and aircrafts [30]. However, the poor dielectric properties caused by single polarization and low conductivity limit their applications as ideal MA materials [30,31]. Great efforts have been made to improve the MA performance of SiC materials in the past decades, and diverse SiC based materials have been fabricated.…”

“…Great efforts have been made to improve the MA performance of SiC materials in the past decades, and diverse SiC based materials have been fabricated. These materials include SiC/Co hybrid nanowires [24], SiC nanowires [29,32], polypyrrole@SiC nanocomposites [30], SiC/C composite ceramics [33], SiC microtubes [34], stacking fault SiC nanowires [35], SiC/Co@SiO 2 nanowires [36], and doped SiC nanomaterials [37][38][39]. During the preparation process of SiC nanomaterials, some undesired SiO 2 is usually formed as a by-product on the surfaces of SiC nanomaterials due to the existence of trace of oxygen.…”

Facile Synthesis of Sandwich-Like rGO/CuS/Polypyrrole Nanoarchitectures for Efficient Electromagnetic Absorption

“…In the design process, strong attenuation capability and proper impedance matching are important factors for high-performance absorbers. Generally, if |Z in /Z 0 | = 1 (Z 0 = 376.7 Ω is the intrinsic impedance of free space, Z in is the input characteristic impedance of the absorber), an electromagnetic wave can hardly reflect on the surfaces of the material [16][17][18][19].…”

Photoelectrochemistry of conducting polymer-based nanohybrid electrodes

“…CP/SiC systems were investigated during my doctoral research, therefore the applicability of CPs as co-catalysts is demonstrated here through the example of various CP/SiC systems, taken from the literature. In this vein, CP/SiC nanocomposites were already synthesized using various CPs, such as PANI [124][125][126][127], PPy [128][129][130][131], and poly(3-thiophene-aceticacid) [132]. There are two common attributes in these studies: the nanohybrids were synthesized by chemical polymerization, and the PEC properties of these nanocomposite materials have not been explored yet.…”