Electromagnetic wave absorption properties of mesoporous Fe3O4/C nanocomposites

Morphological, dielectric, tunable electromagnetic interference shielding and thermal characteristics of multiwalled carbon nanotube incorporated polymer nanocomposites: A facile, environmentally benign and cost effective approach realized via polymer latex/waterborne polymer as matrix

“…This in turn justifies the scientific and industrial communities pursuit for novel, low cost, environment friendly and effective electromagnetic interference (EMI) shielding materials for various applications . Materials with good electrical conductivity generally have good EMI SE (shielding effectiveness), however most of the conventional/established EMI SE materials are primarily made up of metallic materials and have major drawbacks like; (a) high cost, (b) difficulty in processing, (c) chance for corrosion, and (d) out of control EMI SE values . Conductive polymer composites (CPCs) which are made up of polymer matrices and fillers like graphene, carbon nanotube (CNT), carbon black, carbon nanofiber, etc., on the other hand have advantages like low weight, processing easiness, corrosion resistance, low cost and conductivity which can be further tuned based on user needs when compared with the conventional metal based conducting composites .…”

Effect of annealing temperature on the structure of carbon encapsulated Fe3O4 nanospheres

“…(1) Heat treatment can effectively promote the agglomeration of Fe 3 O 4 nanoparticles, to facilitate the grain growth. [28][29][30] Herein, at the annealing temperature higher than 300 C, Fe 3 O 4 nanoparticles agglomerate and grow to larger nanoparticles in the process of carbonization treatment, 31 leaving small vacancies between carbon shell and Fe 3 O 4 , which can be observed in TEM image (arrow in Fig. 3 Then, enlargement of the distance between core and shell to form yolk-shell structure.…”

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.…”