Low Temperature Solution Synthesis and Microwave Absorption Properties of Multiwalled Carbon Nanotubes/Fe3O4 Composites

Microwave Radar Absorbing Properties of Multiwalled Carbon Nanotubes Polymer Composites: A Review

“…But each approach has some drawback. These approaches include (i) the use of magnetic, nonmagnetic, carbon nanostructures, and structures along with CNTs in the matrix that results in weight increment, and (ii) the use of spacer, for example, honeycomb or foam materials, resulted in thicker material. Till now, the RAM prepared using MWCNTs and magnetic particles exhibiting maximum 90% RL and absorption BW of greater than 4 GHz are highlighted in Table .…”

“…To achieve these conditions, it becomes necessary to attach or encapsulate magnetic and or nonmagnetic nanostructures as functional groups on the surface of MWCNTs. Literature reports show the enhancement of EM absorbing properties of MWCNTs when metals, ferrites, and nonmagnetic structures have been attached.…”

Fabrication of hierarchical graphene@Fe3O4@SiO2@polyaniline quaternary composite and its improved electrochemical performance

“…Graphene@Fe 3 O 4 @SiO 2 composites were prepared through a modified Stöber method [14]. Typically, the as-prepared graphene@Fe 3 in a mixture of ethanol (40 mL), water (10 mL), and ammonia solution (1 mL). Afterward, 0.2 mL tetraethylorthosilicate (TEOS) was added dropwise, and the reaction was allowed to proceed for 10 h under stirring.…”

“…The idea MAWAMs are required to have wide absorption frequency range, strong absorption properties, low density, good thermal stability, and antioxidant capability [2]. Traditional materials, such as carbon black, graphite and ferrite, cannot reach the standards due to their relatively low absorbing abilities and narrow bandwidth of absorption frequency [3]. Therefore, designing and fabricating new types of MAWAMs with effective electromagnetic wave absorption ability are highly demanded.…”

Preparation of Ni/C porous fibers derived from jute fibers for high-performance microwave absorption

“…It is clear that the Ni/C porous bers have broader effective bandwidth and stronger RL. [29][30][31][32][33][34] Moreover, in contrast with the traditional microwave absorbents, the Ni/C porous bers present the advantage of low density due to the existence of porous carbon bers. Considering that our synthetic method is simple, low cost, and suitable for large-scale preparation, it is attractive for microwave absorption application.…”