"Three-in-One" Multi-Scale Structural Design of Carbon Fiber-Based Composites for Personal Electromagnetic Protection and Thermal Management

Nano-Micro Letters, Год журнала: 2023, Номер 15(1)

Опубликована: Июль 10, 2023

Wearable devices with efficient thermal management and electromagnetic interference (EMI) shielding are highly desirable for improving human comfort safety. Herein, a multifunctional wearable carbon fibers (CF) @ polyaniline (PANI) / silver nanowires (Ag NWs) composites "branch-trunk" interlocked micro/nanostructure were achieved through "three-in-one" multi-scale design. The reasonable assembly of the three kinds one-dimensional (1D) materials can fully exert their excellent properties i.e., superior flexibility CF, robustness PANI, splendid conductivity AgNWs. Consequently, constructed flexible composite demonstrates enhanced mechanical tensile stress 1.2 MPa, which was almost 6 times that original material. This is mainly attributed to fact PNAI (branch) firmly attached CF (trunk) polydopamine (PDA), forming robust structure. Meanwhile, possesses insulation heat preservation capacity owing synergistically low emissivity. More importantly, conductive path established by 1D greatly improved its EMI property Joule heating performance at applied voltage. work paves way rational utilization intrinsic materials, as well provides promising strategy designing protection energy devices.

Язык: Английский

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Electronic Modulation Strategy for Mass-Producible Ultrastrong Multifunctional Biomass-Based Fiber Aerogel Devices: Interfacial Bridging

ACS Nano, Год журнала: 2023, Номер 17(20), С. 20525 - 20536

Опубликована: Окт. 10, 2023

The emergence of green flexible aerogel electronics based on natural materials is expected to solve part the global environmental and energy crisis. However, it still challenging achieve large-scale production multifunctional stable applications biomass fiber (BFA) materials. Herein, we exploit interfacial bridging between flower-type titanium dioxide nanoarray (FTNA) substrates modulate electronic structure loss mechanism properties. Specifically, fibrous substrate with wrinkled features induces lattice strain in titania through precise bridging, effectively improving intrinsic properties BFA This regulation strategy also confirmed by X-ray absorption fine spectroscopy (XAS). More importantly, construction products for different macroscopic simple processing methods will facilitate transition from electronics. Therefore, as-prepared blanket-type (TCBFA) has good mechanical properties, electromagnetic protection thermal stealth high-temperature flame retardancy, UV resistance. Meanwhile, membrane-type (TCBFAM) wearable device exhibits superior flexibility, efficient Joule heating performance, a smart response. provides another concept design innovation fiber-integrated aerogels.

Язык: Английский

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Constructing two-dimensional/two-dimensional reduced graphene oxide/MoX2 (X = Se and S) van der Waals heterojunctions: a combined composition modulation and interface engineering strategy for microwave absorption

Advanced Composites and Hybrid Materials, Год журнала: 2023, Номер 6(6)

Опубликована: Ноя. 24, 2023

Язык: Английский

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The Elaborate Design of Multi‐Polarization Effect by Non‐Edge Defect Strategy for Ultra‐Broad Microwave Absorption

Advanced Functional Materials, Год журнала: 2024, Номер 34(44)

Опубликована: Май 21, 2024

Abstract Anion defect engineering is proven to be an efficient approach reconstruct the electronic configuration of carbon‐based magnetoelectric materials for targeted modulation electromagnetic (EM) performance. However, traditional mono‐anionic doping suffers from low concentration and lacks diverse polarization mechanisms. In this work, multi‐anions (N/S/F) stepwise‐doped carbon/Fe 3 C composites are elaborately constructed, wherein predesigned N defects serve as activated sites anomalously adopting S anions (Step I) subsequent F II) in non‐marginal areas carbon layer. It found that prefers replace pyrrolic while tends form dangling bonds with site adjacent pyridinic N. Intriguingly, besides inherent polarized resonance at ≈15 GHz, customized induce new resonances ≈10 GHz ≈15+ respectively. Under a typical multi‐polarization effect synergetic magnetic response, N/S/F harvest broadest bandwidth 8.28 (9.72–18 GHz) 2.55 mm, covering wide frequency range almost X Ku bands. This work demonstrates positive impact localized multi‐defects customization on expanding microwave absorption bandwidth, providing valuable insights advanced design ultra‐broadband absorbers.

Язык: Английский

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Perspectives of nitrogen-doped carbons for electromagnetic wave absorption

Carbon, Год журнала: 2024, Номер 221, С. 118925 - 118925

Опубликована: Фев. 10, 2024

Язык: Английский

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An environmentally friendly chitosan-derived VO2/carbon aerogel for radar infrared compatible stealth

Carbon, Год журнала: 2023, Номер 213, С. 118313 - 118313

Опубликована: Июль 21, 2023

Язык: Английский

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Achieving superior electromagnetic wave absorbers with 2D/3D heterogeneous structures through the confinement effect of reduced graphene oxides

Carbon, Год журнала: 2023, Номер 213, С. 118245 - 118245

Опубликована: Июнь 24, 2023

Язык: Английский

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A perspective on impedance matching and resonance absorption mechanism for electromagnetic wave absorbing

Carbon, Год журнала: 2024, Номер 222, С. 118935 - 118935

Опубликована: Фев. 13, 2024

Язык: Английский

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Progress in microwave absorbing materials: A critical review

Advances in Colloid and Interface Science, Год журнала: 2024, Номер 327, С. 103143 - 103143

Опубликована: Апрель 4, 2024

Язык: Английский

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Honeycomb-like bamboo powders-derived porous carbon with low filler loading, high-performance microwave absorption

Carbon, Год журнала: 2023, Номер 215, С. 118415 - 118415

Опубликована: Авг. 28, 2023

Язык: Английский

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