Broadband Electromagnetic Response and Enhanced Microwave Absorption in Carbon Black and Magnetic Fe3O4 Nanoparticles Reinforced Polyvinylidenefluoride Composites

Lalan, Vidhya; Subodh, G.

doi:10.1007/s11664-019-07635-3

Cited by 43 publications

(11 citation statements)

References 48 publications

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“…Although conjugated carbonaceous materials with different morphologies have high dielectric losses, single dielectric loss shows inefficient bandwidth in electromagnetic absorption (EMA) owing to impedance mismatching. Metals, metal oxides, metal sulfides, elements, and other magnetic and dielectric materials have been anchored to the carbonaceous materials including carbon nanotubes (CNTs) (Munir, 2017;Peymanfar et al, 2019b;Peymanfar et al, 2019c;Mo et al, 2019;Chen et al, 2021a;Liu et al, 2021;Wang et al, 2022), carbon fibers (CFs) (Peymanfar and Moradi, 2020;Wang et al, 2020;Chen et al, 2021b;Chen et al, 2021c;Gunwant and Vedrtnam, 2021;Song et al, 2021;Wu et al, 2021), carbon spheres Frontiers in Materials frontiersin.org (Ning et al, 2020a;Zhang et al, 2020a;Peymanfar et al, 2021a;Song et al, 2021), carbon micro-tubes (Peymanfar et al, 2021d), activated carbon (Mahmoodi et al, 2022), graphene (Li et al, 2017;Meng et al, 2018;Wang et al, 2019a;Peymanfar et al, 2019d;Zhi et al, 2021;Wu et al, 2022), carbon net-like morphology (Peymanfar and Ghorbanian-Gezaforodi, 2021), and carbon black (Ibrahim et al, 2020;Lalan and Ganesanpotti, 2020). This phenomenon can effectively enhance the microwave-absorbing ability of the conjugated structures due to the tunable electromagnetic properties and emergent synergetic loss mechanisms in the tailored composites (Duan et al, 2018;Chen et al, 2021b;Guan et al, 2021;Kumar et al, 2021).…”

Section: Carbon-based Conductive Polymers and Their Microwave-absorbi...mentioning

confidence: 99%

Recent advances in microwave-absorbing materials fabricated using organic conductive polymers

et al. 2023

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Microwave-absorbing materials are widely utilized in military and civilian applications. Moreover, their environmental potential to refine electromagnetic pollution has promoted their importance. An ideal conjugated organic polymer for use as a microwave-absorbing material should possess high porosity, low density, a long conjugated backbone, a narrow energy band gap, proper conductive and relaxation loss, and vast specific surface area. This review describes the conductive polymer types used as microwave-absorbing material and their composites toward improving microwave-absorbing capability. Additionally, recent developments in synthetic strategies and structural properties of pure carbon-based microwave-absorbing materials and other conjugated structures having heteroatoms in their chains are discussed. In the field of microwave absorbers, the predominant microwave-absorbing mechanisms among conductive polymers and their composites as well as the special mechanisms for tuning microwave-absorbing characteristics, including metamaterial and quasi-antenna features, are dissected. This review sheds new light on architecting low-density and high-performance microwave-absorbing structures and offers new prospects in tailoring conjugated polymers based on their dominant mechanisms.

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Section: Carbon-based Conductive Polymers and Their Microwave-absorbi...mentioning

confidence: 99%

Recent advances in microwave-absorbing materials fabricated using organic conductive polymers

et al. 2023

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“…Different pH variations were used to synthesize different size nanoparticles at constant temperature for the measurement of these microwave properties [122]. Similarly, the effect of particle concentration, external magnetic field, frequency dependence of RF and microwave properties [35,123,124], agglomeration effects on the effective electromagnetic properties of composites with magnetic Fe 3 O 4 nanoparticles [125,126] have been studied and reported in the literature. For example, Li et al in 2015 reported water soluble Fe 3 O 4 nanoparticles coated using surface double-layered self-assembly method.…”

Section: Tunable Electromagnetic Properties Of Magnetite (Fe 3 O 4 ) ...mentioning

confidence: 99%

Magnetite Nanoparticles (Fe₃O₄) for Radio-Frequency and Microwave Applications

Lathiya¹,

Wang²

2022

Iron Oxide Nanoparticles

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The size and shape dependent tunable electromagnetic (EM) properties of magnetite – Fe3O4 nanoparticles makes them an attractive material for various future electronics and biomedical device applications such as tunable attenuators, miniaturized isolators and circulators, RF antennas, EM shielding, and biomedical implants etc. The strategic design of RF devices requires specific dielectric and magnetic properties according to the applications, which in turn depends on the size and shape of the particles. At nanoscale, iron oxide’s magnetic and dielectric properties are very different from its bulk properties and can be tuned and enhanced by utilizing different synthesis approaches. In this chapter, we summarize electromagnetic properties of magnetite (Fe3O4) nanomaterials such as, complex permeability, complex permittivity, magnetic and dielectric loss tangents, saturation magnetization, temperature dependence, and ferromagnetic resonance; and how these properties can be optimized by varying different synthesis parameters. Finally, Fe3O4 nanocomposites will be explored by using different synthesis approaches for implementation of RF and microwave applications and we will conclude the chapter with future recommendations.

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“…Even though high EMI shielding effectiveness (SE) can be achieved by metals, conductive polymers, and from conductive low-dimensional materials such as reduced graphene oxide and MXenes, the inevitable reflection of EM waves associated with the conductivity of a material may bring negative impacts to the environment and precision electronic devices confined to a small area used in aerospace and military applications. ,− Thus, it is essential to tune material combinations so that the shielding effectiveness due to absorption (SE A ) dominates over the shielding effectiveness due to reflection (SE R ). Such material combinations can be achieved by suitably incorporating magnetic and conducting materials so as to promote impedance matching and thereby reduce the reflection of EM waves. ,− Further, reports indicate that multilayered arrangement of magnetic and conductive structures is an efficient way to integrate the shielding performance of composites by exploiting the mechanism of multiple internal reflections arising from the impedance mismatch of the heterogeneous layers. , …”

Section: Introductionmentioning

confidence: 99%

Design and Fabrication of Layered Electromagnetic Interference Shielding Materials: A Cost-Effective Strategy for Performance Prediction and Efficiency Tuning

Rajan

Solaman

Subodh

2023

ACS Appl. Mater. Interfaces

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The electromagnetic interference (EMI) shielding market is one of the fast-growing sectors owing to the increasingly complicated electromagnetic environment. Recently, priority has been given to improvise the techniques to fine-tune and predict the shielding properties of structures without exhausting raw materials and reduce the expense as well as the time required for optimization. In this article, we demonstrate an effective and precise method to predict the EMI shielding effectiveness (SE) of materials via simulating the performance of composites having alternate layers of conducting and magnetic materials in a virtual waveguide measurement environment based on the finite element method (FEM). The EMI SE of multilayered heterogeneous arrangements (MHAs) is simulated in the Kband region using ANSYS High Frequency Structure Simulator (HFSS) software, which can be extended to all other bands as well. Various simulations carried out by changing the order of the conducting and magnetic layers and the number of layers revealed that the strategic arrangement of electromagnetic (EM) energy-trapping layers inside the impedance-matching layers in the MHAs significantly contributes toward the enhancement of absorption-dominated EMI shielding. Among the MHAs, the conductingmagnetic-conducting (CMC) systems exhibited the highest shielding effectiveness of above 50 dB. The MHAs are realized for testing using poly(vinylidene fluoride)-based composites of low-cost carbon black and barium hexaferrite, an easily accessible ferrite. Through this study, we propose the idea that materials with high production cost and cumbersome fabrication procedures are not necessary to realize highly efficient shielding materials.

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Broadband Electromagnetic Response and Enhanced Microwave Absorption in Carbon Black and Magnetic Fe3O4 Nanoparticles Reinforced Polyvinylidenefluoride Composites

Cited by 43 publications

References 48 publications

Recent advances in microwave-absorbing materials fabricated using organic conductive polymers

Recent advances in microwave-absorbing materials fabricated using organic conductive polymers

Magnetite Nanoparticles (Fe₃O₄) for Radio-Frequency and Microwave Applications

Design and Fabrication of Layered Electromagnetic Interference Shielding Materials: A Cost-Effective Strategy for Performance Prediction and Efficiency Tuning

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Broadband Electromagnetic Response and Enhanced Microwave Absorption in Carbon Black and Magnetic Fe3O4 Nanoparticles Reinforced Polyvinylidenefluoride Composites

Cited by 43 publications

References 48 publications

Recent advances in microwave-absorbing materials fabricated using organic conductive polymers

Recent advances in microwave-absorbing materials fabricated using organic conductive polymers

Magnetite Nanoparticles (Fe3O4) for Radio-Frequency and Microwave Applications

Design and Fabrication of Layered Electromagnetic Interference Shielding Materials: A Cost-Effective Strategy for Performance Prediction and Efficiency Tuning

Contact Info

Product

Resources

About

Magnetite Nanoparticles (Fe₃O₄) for Radio-Frequency and Microwave Applications