Microwave absorption theory and recent advances in microwave absorbers by polymer-based nanocomposites (carbons, oxides, sulfides, metals, and alloys)

Maleki, Sajjad Tabar; Babamoradi, Mohsen

doi:10.1016/j.inoche.2023.110407

Cited by 21 publications

(5 citation statements)

References 155 publications

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“…This relationship is unfounded because MB and WMB are distinct devices, and their parameters cannot be directly correlated. |s 11 | of WMB was also inaccurately used to estimate |RM| or |RL| [40], with beam r1 or r2 often being ignored [39,41,42]. It should be emphasized that s 11 represents the reflection coefficient of WMB and is a function of d, whereas R M represents the reflection coefficient of the interface, where d is irrelevant.…”

Section: Methodsmentioning

confidence: 99%

Wave mechanics of microwave absorption in films: A short review

Liu,

Drew

2024

Optics & Laser Technology

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Section: Methodsmentioning

confidence: 99%

Wave mechanics of microwave absorption in films: A short review

Liu,

Drew

2024

Optics & Laser Technology

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“…For example, Ni/NiO/Cu@C composites can be easily prepared by calcining Cu/Ni-MOFs in an Ar atmosphere. [56] Other precursors, such as polymers [57][58][59] and biomass, [60][61][62] as well as layered double hydroxides, [63][64] also offer unique advantages. In addition to the above-mentioned precursors, materials with large specific surface areas, abundant active sites, and stable structures, such as MXene, [65][66] graphene, [67][68][69] carbon fiber/cloth, [70][71] textiles, [72] boron nitride (BN), [73] and conductive polymers are being intensively studied as substrates for creating hierarchical composite structures.…”

Section: New Lossy Medium Matrix and Additivementioning

confidence: 99%

Advancements in Microwave Absorption Motivated by Interdisciplinary Research

Zhao,

Qing,

Kong

et al. 2023

Advanced Materials

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Microwave absorption materials (MAMs) were originally developed for military purposes, but have since evolved into versatile materials with promising applications in modern technologies, including household use. Despite significant progress in bench‐side research over the past decade, MAMs remain limited in their scope and have yet to be widely adopted. This review explores the history of MAMs from first‐generation coatings to second‐generation functional absorbers, identifies bottlenecks hindering their maturation. It also presents potential solutions such as exploring broader spatial scales, advanced characterization, introducing liquid media, utilizing novel toolbox (machine learning), and proximity of lab to end‐user. Additionally, it meticulously presents compelling applications of MAMs in medicine, mechanics, energy, optics, and sensing, which go beyond absorption efficiency, along with their current development status and prospects. This interdisciplinary research direction differs from previous research which primarily focused on meeting traditional requirements (i. e., thin, lightweight, wide, and strong), and can be defined as the next generation of smart absorbers. Ultimately, the effective utilization of ubiquitous electromagnetic waves, aided by third‐generation MAMs, should be better aligned with future expectations.This article is protected by copyright. All rights reserved

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“…Ternary hybrid nanocomposites, with their constitutive elements including conjugated polymers, carbon nanomaterials, and magnetic nanoparticles, stand at the forefront of materials for modern technologies [1][2][3][4]. These materials hold potential for various applications, such as microwave absorption [5][6][7][8][9][10], energy storage [11][12][13][14][15][16][17][18], water resource remediation [19][20][21][22], drug delivery [23], corrosion resistance improvement [24], catalysis [25][26][27][28], sensing [29][30][31][32], and tracking electromagnetic environmental pollution [33].…”

Section: Introductionmentioning

confidence: 99%

Formation Features of Polymer–Metal–Carbon Ternary Electromagnetic Nanocomposites Based on Polyphenoxazine

et al. 2023

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Novel ternary hybrid polyphenoxazine (PPOA)-derived nanocomposites involving Co-Fe particles and single-walled (SWCNTs) or multi-walled (MWCNTs) carbon nanotubes were prepared and investigated. An efficient one-pot method employing infrared (IR) heating enabled the formation of Co-Fe/CNT/PPOA nanocomposites. During this, the dehydrogenation of phenoxazine (POA) units led to the simultaneous reduction of metals by released hydrogen, yielding bimetallic Co-Fe particles with a size range from the nanoscale (5–30 nm) to the microscale (400–1400 nm). The synthesized Co-Fe/CNT/PPOA nanomaterials exhibited impressive thermal stability, demonstrating a half-weight loss at 640 °C and 563 °C in air for Co-Fe/SWCNT/PPOA and Co-Fe/MWCNT/PPOA, respectively. Although a slightly broader range of saturation magnetization values was obtained using MWCNTs, it was found that the type of carbon nanotube, whether an SWCNT (22.14–41.82 emu/g) or an MWCNT (20.93–44.33 emu/g), did not considerably affect the magnetic characteristics of the resulting nanomaterial. By contrast, saturation magnetization escalated with an increasing concentration of both cobalt and iron. These nanocomposites demonstrated a weak dependence of electrical conductivity on frequency. It is shown that the conductivity value for hybrid nanocomposites is higher compared to single-polymer materials and becomes higher with increasing CNT content.

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Microwave absorption theory and recent advances in microwave absorbers by polymer-based nanocomposites (carbons, oxides, sulfides, metals, and alloys)

Cited by 21 publications

References 155 publications

Wave mechanics of microwave absorption in films: A short review

Wave mechanics of microwave absorption in films: A short review

Advancements in Microwave Absorption Motivated by Interdisciplinary Research

Formation Features of Polymer–Metal–Carbon Ternary Electromagnetic Nanocomposites Based on Polyphenoxazine

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