2024年7月25日 · Multiscale NiFe 2 O 4 /C hybrid nanofibers were successfully synthesized. The effective absorption frequency can be finely adjusted from Ku to X and even to C bands. The optimal reflection loss of hybrid nanofiber reaches –63.05 dB at 8.08 GHz. The electromagnetic wave attenuation mechanism is analyzed in depth.

With a fixed PUL solution concentration of 10% and varying PVA concentrations from 6% to 14% (Fig. 1 A–E), the nanofiber diameters gradually increased, ranging from 441 ± 125 nm to 1353 ± 268 nm. SEM images revealed that at PVA concentrations between 6% and 8%, the nanofiber bands exhibited beads with entanglement fractures.

2017年7月1日 · As a class of nanomaterials with cross-sectional diameters ranging from tens to hundreds of nanometers, nanofibers possess extremely high specific surface area and surface area-to-volume ratio.

2025年1月6日 · The analysis of the synthesized products involved studying their infrared (IR) spectra to identify specific absorption bands associated with different functional groups. In the IR spectra of the produced MgO NPs, cPVDF nanofibers, and the cPVDF/MgO nanofiber composite (see Fig. 1 ), distinct absorption peaks were observed at specific wave numbers.

2018年8月15日 · Here, we demonstrate an efficient and facile approach to prepare freestanding, lightweight, and flexible crosslinking polyacrylonitrile (CPAN) nanofiber (NF)/metal nanoparticle (MNP) hybrid...

Suggesting that the nanofiber composites sample contain (5 and 20 wt%) are more suitable for X-band microwave absorption materials (Park et al., 2016; Take et al., 2014), while the composites nanofiber sample contain 10 and 25 wt% of Fe 3 O 4 nanoparticles are found to be within the range of S-band microwave absorbing frequency (Guo et al ...

2024年12月2日 · In this work, we have synthesized carbon nanofiber-based aerogels with outstanding flame retardancy, thermal insulation, and high electromagnetic shielding performance. The high-strength electrospun polybenzimidazole-dihydroxy-diketone (BBB)-derived CNFs, carboxymethyl cellulose, and PANI were used as the framework, binder, and the conductive ...

2022年2月23日 · Among all nanostructured materials, nanofibers (NFs) are the one class that is widely used in tissue engineering (TE) and regenerative medicine (RM) areas. NFs can be produced by a variety of different methods, so they can be used almost for any tissue engineering process with appropriate modifications.

2025年1月24日 · We propose using an ultrasonication-assisted molecular assembly process to create polysaccharide-based nanofibers from components such as chitosan and sodium alginate, instead of the traditional...

2024年11月5日 · Here, renewable, low-density, high-strength, and large-aspect-ratio ceramic silicon dioxide (SiO 2) nanofibers were efficiently prepared to assist in the preparation of ultralight yet robust, highly elastic, and hydrophobic graphene aerogels using facile, scalable freeze-drying followed by a carbonization approach.