Composites Part A Applied Science and Manufacturing, Год журнала: 2022, Номер 155, С. 106809 - 106809
Опубликована: Янв. 7, 2022
Язык: Английский
Advanced Functional Materials, Год журнала: 2022, Номер 32(42)
Опубликована: Июль 1, 2022
Abstract Electromagnetic (EM) functional materials play an increasingly important role in solving EM wave pollution both modern military and civil fields. Graphene‐based are the most promising candidates applications of shielding absorption owing to their remarkable structures enhanced properties. Designing graphene‐based with elaborately controlled microstructures optimized properties can effectively improve energy attenuation conversion. Herein, study begins mechanism, multiscale design strategies outlined, including molecular‐scale, micro/nanoscale structure, macroscale integration assembly strategies. Applications fields reviewed, focusing on latest advances assemblies such as films, fabrics, composites. Finally, current challenges future directions this fast‐growing field predicted.
Язык: Английский
Процитировано
448
Journal of Applied Physics, Год журнала: 2021, Номер 130(22)
Опубликована: Дек. 10, 2021
There exists serious miscomprehension in the open literature about electromagnetic interference shielding effectiveness (EMI SE) as a critical index to evaluate performance, which is misleading graduates and newcomers embarking on field of materials. EMI SE defined sum three terms including reflection loss, absorption loss multiple classical Schelkunoff theory, while it decomposed into two named practice, called Calculation theory here. In this paper, we elucidate widely-seen misconceptions connected with via theoretical derivation instance analysis. Firstly, are often mistakenly regarded approximation same names when negligible. Secondly, insufficient unreasonable determine absorption-dominant performance case that higher than since cannot represent actual levels reflected absorbed power. Power coefficients recommended compare contribution performance. Thirdly, effect included definitions reflections property clarified against commonly wrong understandings. These clarifications offer correct comprehension mechanism assessment total shielding.
Язык: Английский
Процитировано
275
Composites Part B Engineering, Год журнала: 2022, Номер 233, С. 109652 - 109652
Опубликована: Янв. 14, 2022
Язык: Английский
Процитировано
210
Nano-Micro Letters, Год журнала: 2023, Номер 15(1)
Опубликована: Фев. 8, 2023
Construction of advanced electromagnetic interference (EMI) shielding materials with miniaturized, programmable structure and low reflection are promising but challenging. Herein, an integrated transition-metal carbides/carbon nanotube/polyimide (gradient-conductive MXene/CNT/PI, GCMCP) aerogel frame hierarchical porous gradient-conductivity has been constructed to achieve EMI ultra-low reflection. The gradient-conductive structures obtained by continuous 3D printing MXene/CNT/poly (amic acid) inks different CNT contents, where the slightly conductive top layer serves as EM absorption highly bottom layer. In addition, could extend dissipation path dissipate multiple reflections. Consequently, GCMCP frames exhibit excellent average efficiency (68.2 dB) (R = 0.23). Furthermore, miniaturized can be used gaskets effectively block wireless power transmission, which shows a prosperous application prospect in defense industry aerospace.
Язык: Английский
Процитировано
190
Journal of Material Science and Technology, Год журнала: 2022, Номер 134, С. 106 - 131
Опубликована: Июль 22, 2022
Язык: Английский
Процитировано
188
Advanced Science, Год журнала: 2023, Номер 10(16)
Опубликована: Март 29, 2023
Abstract Biomass is considered as a promising source to fabricate functional carbon materials for its sustainability, low cost, and high content. Biomass‐derived‐carbon (BCMs) have been thriving research field. Novel structures, diverse synthesis methods, versatile applications of BCMs reported. However, there has no recent review the numerous studies different aspects BCMs‐related research. Therefore, this paper presents comprehensive that summarizes progress related Herein, typical types biomass used prepare are introduced. Variable structures summarized performance properties closely their structures. Representative strategies, including both merits drawbacks reviewed comprehensively. Moreover, influence synthetic conditions on structure as‐prepared products discussed, providing important information rational design fabrication process BCMs. Recent in based morphologies physicochemical Finally, remaining challenges BCMs, highlighted. Overall, provides valuable overview current knowledge it outlines directions future development
Язык: Английский
Процитировано
183
Science Advances, Год журнала: 2021, Номер 7(39)
Опубликована: Сен. 22, 2021
Polymer-based conductive nanocomposites are promising for electromagnetic interference (EMI) shielding to ensure stable operations of electronic devices and protect humans from radiation. Although MXenes have shown high EMI performances, it remains a great challenge construct highly efficient polymer/MXene composite films with minimal MXene content durability harsh conditions. Here, hierarchically porous polyimide (PI)/Ti3C2Tx consecutively pathways been constructed via unidirectional PI aerogel–assisted immersion hot-pressing strategy. Contributed by special architectures conductivities, PI/Ti3C2Tx 2.0 volume % Ti3C2Tx absolute effectiveness up 15,527 dB cm2 g−1 at the thickness 90 μm. Superior performance can be retained even after being subjected hygrothermal or combustion environments, cryogenic (−196°C) (250°C) temperatures, rapid thermal shock (∆T = 446°C), demonstrating potential as high-performance materials resisting
Язык: Английский
Процитировано
181
Materials Today, Год журнала: 2023, Номер 66, С. 245 - 272
Опубликована: Апрель 10, 2023
Electromagnetic interference (EMI) shielding is critical in electronic applications. However, the currently available EMI materials are restricted customizability and application flexibility. Recent advances manufacturing technologies have provided a unique path to achieve custom creation of solutions. A successful example additive (AM), which has enabled high design freedom, efficient performance regulation, multifunctionality simultaneously into fabricated shields, offering an opportunity start revolution field shielding. In this review, we summarize latest AM materials, aiming provide deep understanding connection between raw methods, considerations, performances shields. We first introduce mechanism subsequently focusing on characteristics representative methods as-created Based requirements create application-oriented solutions, these also critically compared. Thereafter, present state-of-the-art considerations shields examine pivotal roles realizing designs. conclude by discussing future research directions, at motivating use developments
Язык: Английский
Процитировано
166
Carbon, Год журнала: 2022, Номер 193, С. 26 - 34
Опубликована: Март 14, 2022
Язык: Английский
Процитировано
157
Chemical Engineering Journal, Год журнала: 2021, Номер 430, С. 132928 - 132928
Опубликована: Окт. 19, 2021
Язык: Английский
Процитировано
156