Ambient-drying to construct unidirectional cellulose nanofibers/ carbon nanotubes aerogel with ultra-lightweight, robust, and superior microwave absorption performance

Huang, Zheng; Liu, Xiangyang; Zhang, Hao; Guo, Mingyi; Zhang, Dingyue; Gao, Caiqin; Fan, Yongzhe; Chen, Xianchun; Terrones, Mauricio; Wang, Yanqing

doi:10.1016/j.carbon.2023.118150

Cited by 25 publications

(2 citation statements)

References 58 publications

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“…With a minimum reflection loss (RL min ) of −92.8 dB at 11.6 GHz, it serves as an excellent radar stealth material. Huang et al [ 132 ] achieved the preparation of a mixed double-network aerogel (UCCA) of CNF and carbon nanotubes (CNTs) through unidirectional circular freezing and thawing. Figure 11 a illustrates the dissipation mechanism of electromagnetic waves in the UCCA.…”

Section: Application Of Fibrous Three-dimensional Porous Materials In...mentioning

confidence: 99%

“… Application of fibrous porous materials in the field of electromagnetic wave absorption. ( a ) Wave absorption mechanism for UCCA [ 132 ]; ( b ) axial and radial absorbing properties for UCCA–25 [ 132 ]; ( c , d ) wave absorption properties and mechanisms of three types of MXene/PINF aerogels [ 134 ]. …”

Section: Application Of Fibrous Three-dimensional Porous Materials In...mentioning

confidence: 99%

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Preparation of Fibrous Three-Dimensional Porous Materials and Their Research Progress in the Field of Stealth Protection

Zhang,

Zhao,

Chen

et al. 2024

Nanomaterials

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Intelligent and diversified development of modern detection technology greatly affects the battlefield survivability of military targets, especially infrared, acoustic wave, and radar detection expose targets by capturing their unavoidable infrared radiation, acoustic wave, and electromagnetic wave information, greatly affecting their battlefield survival and penetration capabilities. Therefore, there is an urgent need to develop stealth-protective materials that can suppress infrared radiation, reduce acoustic characteristics, and weaken electromagnetic signals. Fibrous three-dimensional porous materials, with their high porosity, excellent structural adjustability, and superior mechanical properties, possess strong potential for development in the field of stealth protection. This article introduced and reviewed the characteristics and development process of fibrous three-dimensional porous materials at both the micrometer and nanometer scales. Then, the process and characteristics of preparing fibrous three-dimensional porous materials through vacuum forming, gel solidification, freeze-casting, and impregnation stacking methods were analyzed and discussed. Meanwhile, their current application status in infrared, acoustic wave, and radar stealth fields was summarized and their existing problems and development trends in these areas from the perspectives of preparation processes and applicability were analyzed. Finally, several prospects for the current challenges faced by fibrous three-dimensional porous materials were proposed as follows: functionally modifying fibers to enhance their applicability through self-cross-linking; establishing theoretical models for the transmission of thermal energy, acoustic waves, and electromagnetic waves within fibrous porous materials; constructing fibrous porous materials resistant to impact, shear, and fracture to meet the needs of practical applications; developing multifunctional stealth fibrous porous materials to confer full-spectrum broadband stealth capability; and exploring the relationship between material size and mechanical properties as a basis for preparing large-scale samples that meet the application’s requirement. This review is very timely and aims to focus researchers’ attention on the importance and research progress of fibrous porous materials in the field of stealth protection, so as to solve the problems and challenges of fibrous porous materials in the field of stealth protection and to promote the further innovation of fibrous porous materials in terms of structure and function.

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Section: Application Of Fibrous Three-dimensional Porous Materials In...mentioning

confidence: 99%

Section: Application Of Fibrous Three-dimensional Porous Materials In...mentioning

confidence: 99%

Preparation of Fibrous Three-Dimensional Porous Materials and Their Research Progress in the Field of Stealth Protection

Zhang,

Zhao,

Chen

et al. 2024

Nanomaterials

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Porous Structure Inherited from Pine Wood and Stacking Defects Synergistically Enhancing Electromagnetic Wave Absorption of SiC

Liu,

Wei,

Geng

et al. 2023

ChemistrySelect

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The traditional electromagnetic (EM) absorbing materials suffers from the poor performance and instability at high temperature, greatly hindering their wide application. Herein, pine wood‐derived SiC with porous structure and plentiful defect sites was synthesized by carbonization and subsequent chemical vapor infiltration process. The influence of drying pretreatment way (freeze drying vs thermostatic drying), carbonization temperature and Si powder/carbon ratio on structure and electromagnetic (EM) wave absorption performance were studied in detail. The optimized SiC with plentiful pore structure and numerous stacking faults showed superior EM wave absorption abilities with a minimum RL value of −42 dB and the effective bandwidth of 14.4 GHz (3.6–18 GHz). The synergistic effect between porous structure inherited from pine wood and stacking faults distinctly enhanced EM wave absorbing performance of SiC. This work demonstrate that rationally design of biomass‐derived SiC material is a promising way of developing high performance absorber.

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Functional–Structural Integrated Aramid Nanofiber-based Honeycomb Materials with Ultrahigh Strength and Multi-Functionalities

Sun,

Yang,

Zhang

2024

Adv. Fiber Mater.

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Ambient-drying to construct unidirectional cellulose nanofibers/ carbon nanotubes aerogel with ultra-lightweight, robust, and superior microwave absorption performance

Cited by 25 publications

References 58 publications

Preparation of Fibrous Three-Dimensional Porous Materials and Their Research Progress in the Field of Stealth Protection

Preparation of Fibrous Three-Dimensional Porous Materials and Their Research Progress in the Field of Stealth Protection

Porous Structure Inherited from Pine Wood and Stacking Defects Synergistically Enhancing Electromagnetic Wave Absorption of SiC

Functional–Structural Integrated Aramid Nanofiber-based Honeycomb Materials with Ultrahigh Strength and Multi-Functionalities

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