3D printed lightweight honeycomb vent structures with subsequent coating of silver nanowires for efficient electromagnetic interference (EMI) shielding DOI Creative Commons

Raheel Abbas,

Ubaid Ur Rehman,

Ahmed Bilal

и другие.

Heliyon, Год журнала: 2024, Номер 10(9), С. e30429 - e30429

Опубликована: Апрель 30, 2024

•3D printed vent structures offer EMI shielding and thermal cooling via air circulation•Additive manufacturing combined with nanomaterials shows great potential in shielding•High aspect ratio silver nanowires make continuous conductive grid on the structures•With 2mm height honeycomb cell size, structure offers up to 35dB attenuation X-band•Intricate honeycombs attenuate EM waves primarily through absorption (up 70%) In light of rapid advancements within electronic industry, urgent need for development implementation advanced electromagnetic interference (EMI) materials has become paramount. Herein a novel approach is presented developing lightweight using 3D printing technology, subsequent spray coating, containing Silver Nanowires (AgNWs), achieve effective as well functionality cooling.Using polyol method, AgNWs were synthesized having high crystallinity be used coating structures. The results X-band demonstrated that developed exhibit promising properties, 35 dB making them suitable applications requiring protection along venting. More importantly all samples major contribution efficiency comes from 75%) inside which helpful reduce reflected noise.Effort was effectively addresses inherent limitations conventional processing by additive material science create applications, bridging gap between existing desired components. cooling. Using noise. Effort

Язык: Английский

Lignocellulose‐Mediated Functionalization of Liquid Metals toward the Frontiers of Multifunctional Materials DOI Open Access
Wei Li,

Liyu Zhu,

Ying Xu

и другие.

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 21, 2024

Lignocellulose-mediated liquid metal (LM) composites, as emerging functional materials, show tremendous potential for a variety of applications. The abundant hydroxyl, carboxyl, and other polar groups in lignocellulose facilitate the formation strong chemical bonds with LM surfaces, enhancing wettability adhesion improved interface compatibility. Beyond serving supportive matrix, can be tailored to optimize microstructure adapting them diverse This review comprehensively summarizes fundamental principles recent advancements lignocellulose-mediated highlighting advantages composite fabrication, including facile synthesis, versatile interactions, inherent functionalities. Key modulation strategies LMs innovative synthesis methods functionalized composites are discussed. Furthermore, roles structure-performance relationships these electromagnetic shielding, flexible sensors, energy storage devices systematically summarized. Finally, obstacles prospective pertaining thoroughly scrutinized deliberated upon. is expected provide basic guidance researchers boost popularity applications useful references design state-of-the-art LMs.

Язык: Английский

Процитировано

38

Cation Bimetallic MOF Anchored Carbon Fiber for Highly Efficient Microwave Absorption DOI

Feng Zhang,

Nan Li, Junfeng Shi

и другие.

Small, Год журнала: 2024, Номер 20(32)

Опубликована: Март 19, 2024

Abstract Carbon fiber (CF) is a potential microwave absorption (MA) material due to the strong dielectric loss. Nevertheless, owing high conductivity, poor impedance matching of carbon‐based materials results in limited MA performance. How solve this problem and achieve excellent performance remains principal challenge. Herein, taking full advantage CF bimetallic metal–organic frameworks (MOF) derivatives layer, an absorber based on micron‐scale 1D NiCoMOF (CF@NiCoMOF‐800) developed. After adjusting oxygen vacancies MOF, resultant presented properties including minimum reflection loss (RL min ) −80.63 dB wide effective bandwidth (EAB) 8.01 GHz when its mass percent only 5 wt.% thickness 2.59 mm. Simultaneously, mechanical epoxy resin (EP)‐based coating with are effectively improved. The hardness (H), elastic modulus (E), bending strength, compressive strength CF@NiCoMOF‐800/EP 334 MPa, 5.56 GPa, 82.2 135.8 which 38%, 15%, 106% 53% higher than EP coating. This work provides promising solution for carbon achieving properties.

Язык: Английский

Процитировано

35

Superhydrophobic MXene-CNT Bridge Strain Sensors with Wide Linear-Range via Strain-isolation and Crack-synergy Effects DOI
Qin Jin, Zhizhe Liu, Xiaoping Ouyang

и другие.

Chemical Engineering Journal, Год журнала: 2024, Номер 488, С. 150796 - 150796

Опубликована: Март 28, 2024

Язык: Английский

Процитировано

16

Shear-Induced Fabrication of Cellulose Nanofibril/Liquid Metal Nanocomposite Films for Flexible Electromagnetic Interference Shielding and Thermal Management DOI

Ning Ren,

Yusen Ai,

Yue Ning

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(14), С. 17904 - 17917

Опубликована: Март 21, 2024

To address electromagnetic interference (EMI) pollution in modern society, the development of ultrathin, high-performance, and highly stable EMI shielding materials is desired. Liquid metal (LM) based conductive have received enormous amounts attention. However, processing approach LM/polymer composites represents great challenges due to high surface tension cohesive energy LMs. In this study, we develop a universal one-step fabrication strategy directly process containing LMs cellulose nanofibrils (CNFs) successfully fabricate flexible, films with an average specific efficiency (EMI SE) value 429 dB/mm small thickness only 70 μm wide frequency range 8.2–18 GHz. addition, resulting also exhibit excellent mechanical performance flexibility, which endow film ability withstand repeated folding, bending, folding into complex shapes without producing cracks or fractures. Besides, display thermal conductivity λ 4.90 W/(m K) α 3.17 mm2/s. Thus, presented shows potential fabricating advanced for applications.

Язык: Английский

Процитировано

15

Recyclable and leakage-suppressed microcellular liquid–metal composite foams for stretchable electromagnetic shielding DOI
Xin Zhang, Jiali Chen,

Xuezhe Chen

и другие.

Chemical Engineering Journal, Год журнала: 2024, Номер 493, С. 152478 - 152478

Опубликована: Май 31, 2024

Язык: Английский

Процитировано

11

Flexible multifunctional Janus film towards self-healing, self-adhesive and streachable EMI shielding DOI
Jing An,

Guiqiang Fei,

Haijian Chen

и другие.

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 685, С. 1056 - 1067

Опубликована: Янв. 23, 2025

Язык: Английский

Процитировано

2

Boron Nitride‐Polymer Composites with High Thermal Conductivity: Preparation, Functionalization Strategy and Innovative Structural Regulation DOI Open Access
Mengsha Li,

Seong-Ryeol Han,

Chengyi Dan

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 30, 2025

Abstract The escalating thermal challenges posed by increasing power densities in electronic devices emerge as a critical barrier to maintain their sustained and reliable operation. Addressing this issue requires the strategic development of materials with superior conductivity properties facilitate progress high‐power electronics development. Thermal conductive polymer composites incorporating ceramic material renowned for exceptional adjustability, insulating properties, moldability, are emerging promising solution urgent challenge. Hexagonal boron nitride (h‐BN) nanomaterials highly candidates management applications, owing mechanical stability, remarkable coefficients, minimal expansion characteristics, outstanding chemical inertness. In work, ≈10 years on high nitride‐filled is thoroughly summarized. Moreover, strategies h‐BN other nanomaterials‐filled at synthesis, functionalization, innovative structural design discussed detail. main future nitride‐polymer also proposed, which will provide meaningful guidance practical applications materials.

Язык: Английский

Процитировано

1

Estimated electric conductivities of thermal plasma for air-fuel combustion and oxy-fuel combustion with potassium or cesium seeding DOI Creative Commons
Osama A. Marzouk

Heliyon, Год журнала: 2024, Номер 10(11), С. e31697 - e31697

Опубликована: Май 22, 2024

A complete model for estimating the electric conductivity of combustion product gases, with added cesium (Cs) or potassium (K) vapor ionization, is presented. Neutral carrier gases serve as bulk fluid that carries seed material, well electrons generated by partial thermal (equilibrium) ionization alkali metal. The accounts electron-neutral scattering, electron-ion and electron-electron scattering. tested through comparison published data. aimed at being utilized plasma within magnetohydrodynamic (MHD) channels, where direct power extraction from passing electrically conducting gas enables generation. then used to estimate seeded under three selected fuels, namely: hydrogen (H2), methane (CH4), carbon (C). For each these two options oxidizer were applied, air (21 % molecular oxygen, 79 nitrogen mole), pure oxygen (oxy-combustion). Two types seeds (with 1 mole fraction, based on composition before ionization) also applied six combinations (fuel-oxidizer), leading a total 12 different MHD cases. cases, was computed range temperatures 2000 K 3000 K. smallest estimated 0.35 S/m oxy-hydrogen K, seeding. largest 180.30 oxy-carbon At replacing causes gain in multiplicative factor about 3.6 regardless fuel oxidizer. This declines between 1.77 2.07

Язык: Английский

Процитировано

9

Constructing the Snail Shell-Like Framework in Thermal Interface Materials for Enhanced Through-Plane Thermal Conductivity DOI
Zhiguo Wang,

Yaonan Huo,

Hai‐Feng Nan

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(36), С. 48386 - 48394

Опубликована: Авг. 29, 2024

Melioration of the through-plane thermal conductivity (TC) interface materials (TIMs) is a sore need for efficient heat dissipation to handle an overheating concern high-power-density electronics. Herein, we constructed snail shell-like conductive framework facilitate vertical conduction in TIMs. With inspiration from spirally growing calcium carbonate platelets shells, facile double-microrod-assisted curliness method was developed coil boron nitride nanosheet (BNNS)/aramid nanofiber (ANF) laminates where interconnected BNNSs lie along horizontal plane. Thus, alignment resultant TIM achieved, exhibiting TC enhancement ∼100% compared counterpart with randomly distributed at same BNNS addition (50 wt %). The Foygel's nonlinear model revealed that this unique reduced interfacial resistance by 4 orders magnitude. Our showed superior efficiency, leading temperature reduction 42.6 °C LED chip aforementioned counterpart. work paves valuable way fabricating high-performance TIMs ensure reliable operation electrical devices.

Язык: Английский

Процитировано

7

Vertically aligned hollow Ag@Ni tubes for synergistic EMI shielding and enhancing the thermal conductivities of epoxy composites DOI

Jaekyung Lee,

Jaeyeon Kim,

Oju Kwon

и другие.

Applied Materials Today, Год журнала: 2025, Номер 44, С. 102741 - 102741

Опубликована: Апрель 22, 2025

Язык: Английский

Процитировано

1