Results 51 to 60 of about 1,276,832 (305)

Enhanced microwave absorption properties of epoxy composites containing graphene decorated with core–shell Fe3O4@polypyrrole nanoparticles

open access: yes, 2017
Core–shell Fe3O4@polypyrrole nanoparticles modified reduced graphene oxide (RGO) epoxy composites with enhanced microwave absorption properties was successfully synthesized.
Cai, Haopeng   +15 more
core   +1 more source

Facile synthesis of Co-embedded porous spherical carbon composites derived from Co3O4/ZIF-8 compounds for broadband microwave absorption

open access: yes, 2020
Carbon materials have extensive applications and research prospects as microwave absorbing materials, but their absorbing properties are limited by the lack of magnetic properties.
Yang, Shuang   +7 more
core   +1 more source

Rapid Microwave Plasma Engineering of HfO2/C@C Core‐Shell Fibrous Membrane Toward Flexible High‐Performance Electromagnetic Wave Absorption

open access: yesAdvanced Functional Materials, EarlyView.
Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding   +14 more
wiley   +1 more source

Design of controlled-morphology NiCo2O4 with tunable and excellent microwave absorption performance

open access: yes, 2020
In recent years, the high-performance microwave absorbers with strong loss, broad frequency bandwidth, thin thickness and light weight have been intensively investigated to address the problem of electromagnetic pollution and improve stealth technology ...
Chen, Wei   +6 more
core   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

open access: yesAdvanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto   +4 more
wiley   +1 more source

Research advances in carbon-based microwave absorbing materials

open access: yesJournal of the European Optical Society-Rapid Publications
With the rapid development of electromagnetic technology, 5G communication, intelligent devices and military stealth technology, there is an ever-growing demand for high-performance microwave absorbing materials.
Niu Yuandong   +3 more
doaj   +1 more source

Electromagnetic Properties Performance of MWCNTs/Polyester Composites in X-band

open access: yesMATEC Web of Conferences, 2018
In this paper presents nano-composites based on polyester (PE) matrix with multi-walled carbon nanotubes (MWCNTs) as fillers have been developed for microwave absorbing materials.
Lee Y. S.   +9 more
doaj   +1 more source

Broadband Microwave Absorption by Logarithmic Spiral Metasurface [PDF]

open access: yesScientific Reports, 2019
AbstractMetamaterials have enabled the design of electromagnetic wave absorbers with unprecedented performance. Conventional metamaterial absorbers usually employ multiple structure components in one unit cell to achieve broadband absorption. Here, a simple metasurface microwave absorber is proposed that has one metal-backed logarithmic spiral ...
Shubo Wang, Bo Hou, Che Ting Chan
openaire   +4 more sources

Low content Ag-coated poly(acrylonitrile) microspheres and graphene for enhanced microwave absorption performance epoxy composites

open access: yes, 2018
Silver nanoparticles was uniformly anchored on the surface of hollow poly(acrylonitrile) microspheres with a facile chemical method using hydrazine hydrate as reductant. Integrating these conducting hollow spheres (PANS@Ag) with chemical reduced graphene
Xiaogang Su   +15 more
core   +1 more source

Ground‐State Charge‐Transfer Doping in Donor–Acceptor Semiconducting Polymers

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates controlled ground‐state charge‐transfer complex formation (GS‐CTC) and doping in a series of diketopyrrolopyrrole‐based donor–acceptor semiconducting polymers paired with a π‐conjugated penta‐t‐butylpentacyanopentabenzo[25]annulene “cyanostar” macrocycle. Complementary experimental techniques show how subtle molecular, electronic,
Tanner L. Smith   +13 more
wiley   +1 more source

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