1
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Shi Y, Wu M, Ge S, Li J, Alshammari AS, Luo J, Amin MA, Qiu H, Jiang J, Asiri YM, Huang R, Hou H, El-Bahy ZM, Guo Z, Jia C, Xu K, Chen X. Advanced Functional Electromagnetic Shielding Materials: A Review Based on Micro-Nano Structure Interface Control of Biomass Cell Walls. NANO-MICRO LETTERS 2024; 17:3. [PMID: 39302510 DOI: 10.1007/s40820-024-01494-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Accepted: 07/27/2024] [Indexed: 09/22/2024]
Abstract
Research efforts on electromagnetic interference (EMI) shielding materials have begun to converge on green and sustainable biomass materials. These materials offer numerous advantages such as being lightweight, porous, and hierarchical. Due to their porous nature, interfacial compatibility, and electrical conductivity, biomass materials hold significant potential as EMI shielding materials. Despite concerted efforts on the EMI shielding of biomass materials have been reported, this research area is still relatively new compared to traditional EMI shielding materials. In particular, a more comprehensive study and summary of the factors influencing biomass EMI shielding materials including the pore structure adjustment, preparation process, and micro-control would be valuable. The preparation methods and characteristics of wood, bamboo, cellulose and lignin in EMI shielding field are critically discussed in this paper, and similar biomass EMI materials are summarized and analyzed. The composite methods and fillers of various biomass materials were reviewed. this paper also highlights the mechanism of EMI shielding as well as existing prospects and challenges for development trends in this field.
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Affiliation(s)
- Yang Shi
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Mingjun Wu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Shengbo Ge
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Jianzhang Li
- State Key Laboratory of Efficient Production of Forest Resourced, Beijing Forestry University, Qinghua East Road 35, Haidian District, Beijing, 100083, People's Republic of China.
| | - Anoud Saud Alshammari
- Department of Physics, Faculty of Sciences-Arar, Northern Border University, Arar, 91431, Saudi Arabia
| | - Jing Luo
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
| | - Mohammed A Amin
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, 21944, Taif, Saudi Arabia
| | - Hua Qiu
- Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi, 710072, People's Republic of China
| | - Jinxuan Jiang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Yazeed M Asiri
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, 21944, Taif, Saudi Arabia
| | - Runzhou Huang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Hua Hou
- Integrated Composites Lab, Department of Mechanical and Construction Engineering, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK
- College of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, People's Republic of China
| | - Zeinhom M El-Bahy
- Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Zhanhu Guo
- Integrated Composites Lab, Department of Mechanical and Construction Engineering, Northumbria University, Newcastle Upon Tyne, NE1 8ST, UK.
| | - Chong Jia
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Kaimeng Xu
- Yunnan Provincial Key Laboratory of Wood Adhesives and Glued Products, International Joint Research Center for Biomass Materials, Southwest Forestry University, Kunming, 650224, People's Republic of China.
| | - Xiangmeng Chen
- School of Science, Henan Agricultural University, Zhengzhou, 450002, People's Republic of China.
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2
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Zhang H, Cheng J, Liu K, Jiang SX, Zhang J, Wang Q, Lan C, Jia H, Li Z. Electric-magnetic dual-gradient structure design of thin MXene/Fe 3O 4 films for absorption-dominated electromagnetic interference shielding. J Colloid Interface Sci 2024; 678:950-958. [PMID: 39226835 DOI: 10.1016/j.jcis.2024.08.216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2024] [Revised: 08/11/2024] [Accepted: 08/25/2024] [Indexed: 09/05/2024]
Abstract
The challenge of achieving high-performance electromagnetic interference (EMI) shielding films, which focuses on electromagnetic waves absorption while maintaining thin thickness, is a crucial endeavor in contemporary electronic device advancement. In this study, we have successfully engineered hybrid films based on MXene nanosheets and Fe3O4 nanoparticles, featuring intricate electric-magnetic dual-gradient structures. Through the collaborative influence of a unique dual-gradient structure equipped with transition and reflection layers, these hybrid films demonstrate favorable impedance matching, abundant loss mechanisms (Ohmic loss, interfacial polarization and magnetic loss), and an "absorb-reflect-reabsorb" process to achieve absorption-dominated EMI shielding capability. Compared with the single conductive gradient structure, the dual-gradient structure effectively enhances the absorption intensity per unit thickness, and thus reduces the thickness of the film. The optimized film demonstrates a remarkable EMI shielding effectiveness (SE) of 49.98 dB alongside an enhanced absorption coefficient (A) of 0.51 with a thickness of only 180 μm. The thin films with a dual-gradient structure hold promise for crafting absorption-dominated electromagnetic shielding materials, highlighting the potential for advanced electromagnetic protection solutions.
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Affiliation(s)
- Hongwei Zhang
- School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China
| | - Jiazhe Cheng
- School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China
| | - Kaiyu Liu
- School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China
| | - Shou-Xiang Jiang
- School of Fashion and Textiles, The Hong Kong Polytechnic University, Hong Kong 999077, China; Research Institute for Intelligent Wearable Systems, The Hong Kong Polytechnic University, Hong Kong, China
| | - Jichao Zhang
- School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China
| | - Qian Wang
- School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China
| | - Chuntao Lan
- College of Textile and Garment, Nantong University, Nantong 226019, China.
| | - Hao Jia
- School of Textile Science and Engineering, Jiangnan University, Wuxi 214122, China; College of Textile& Garment, Shaoxing University, Shaoxing 312099, China.
| | - Zhaoling Li
- Shanghai Frontier Science Research Center for Modern Textiles, College of Textiles, Donghua University, Shanghai 201620, China.
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3
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Lee H, Ryu SH, Kwon SJ, Choi JR, Lee SB, Park B. Absorption-Dominant mmWave EMI Shielding Films with Ultralow Reflection using Ferromagnetic Resonance Frequency Tunable M-Type Ferrites. NANO-MICRO LETTERS 2023; 15:76. [PMID: 36976370 PMCID: PMC10050308 DOI: 10.1007/s40820-023-01058-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
Although there is a high demand for absorption-dominant electromagnetic interference (EMI) shielding materials for 5G millimeter-wave (mmWave) frequencies, most current shielding materials are based on reflection-dominant conductive materials. While there are few absorption-dominant shielding materials proposed with magnetic materials, their working frequencies are usually limited to under 30 GHz. In this study, a novel multi-band absorption-dominant EMI shielding film with M-type strontium ferrites and a conductive grid is proposed. This film shows ultralow EMI reflection of less than 5% in multiple mmWave frequency bands with sub-millimeter thicknesses, while shielding more than 99.9% of EMI. The ultralow reflection frequency bands are controllable by tuning the ferromagnetic resonance frequency of M-type strontium ferrites and composite layer geometries. Two examples of shielding films with ultralow reflection frequencies, one for 39 and 52 GHz 5G telecommunication bands and the other for 60 and 77 GHz autonomous radar bands, are presented. The remarkably low reflectance and thinness of the proposed films provide an important advancement toward the commercialization of EMI shielding materials for 5G mmWave applications.
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Affiliation(s)
- Horim Lee
- Composites Research Division, Korea Institute of Materials Science, 797 Changwondaero, Seongsan-Gu, Changwon, Gyeongsangnam-Do, 51508, Republic of Korea
| | - Seung Han Ryu
- Composites Research Division, Korea Institute of Materials Science, 797 Changwondaero, Seongsan-Gu, Changwon, Gyeongsangnam-Do, 51508, Republic of Korea
| | - Suk Jin Kwon
- Composites Research Division, Korea Institute of Materials Science, 797 Changwondaero, Seongsan-Gu, Changwon, Gyeongsangnam-Do, 51508, Republic of Korea
| | - Jae Ryung Choi
- Composites Research Division, Korea Institute of Materials Science, 797 Changwondaero, Seongsan-Gu, Changwon, Gyeongsangnam-Do, 51508, Republic of Korea
| | - Sang-Bok Lee
- Composites Research Division, Korea Institute of Materials Science, 797 Changwondaero, Seongsan-Gu, Changwon, Gyeongsangnam-Do, 51508, Republic of Korea
| | - Byeongjin Park
- Composites Research Division, Korea Institute of Materials Science, 797 Changwondaero, Seongsan-Gu, Changwon, Gyeongsangnam-Do, 51508, Republic of Korea.
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4
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Li Z, Guo Z. Self-healing system of superhydrophobic surfaces inspired from and beyond nature. NANOSCALE 2023; 15:1493-1512. [PMID: 36601906 DOI: 10.1039/d2nr05952e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Superhydrophobic surfaces show wide prospects in a variety of applications requiring self-cleaning, anti-fog, anti-ice, anti-corrosion and anti-fouling properties, which have attracted the attention of many researchers. However, superhydrophobic surfaces are inevitably affected by chemical corrosion, scratches and wear in practical applications, resulting in the loss of superhydrophobicity. To solve this problem, researchers have developed superhydrophobic surfaces with self-healing properties. In this paper, the research achievements of self-healing superhydrophobic materials in recent years are summarized, and the preparation and repair principle of self-healing superhydrophobic surfaces are introduced from three aspects: surface chemical composition repair, surface roughness repair and double repair. In addition, some multifunctional self-healing superhydrophobic surfaces are introduced, such as conductive, stretchable, antibacterial, etc. Finally, in order to provide a reference for the preparation of widely used long-acting superhydrophobic materials, some existing problems and future development prospects are described in order to attract more researchers' attention and promote the development of this field.
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Affiliation(s)
- Zijie Li
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430062, People's Republic of China.
| | - Zhiguang Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430062, People's Republic of China.
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
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5
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Zhou H, Niu H, Wang H, Lin T. Self-Healing Superwetting Surfaces, Their Fabrications, and Properties. Chem Rev 2023; 123:663-700. [PMID: 36537354 DOI: 10.1021/acs.chemrev.2c00486] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The research on superwetting surfaces with a self-healing function against various damages has progressed rapidly in the recent decade. They are expected to be an effective approach to increasing the durability and application robustness of superwetting materials. Various methods and material systems have been developed to prepare self-healing superwetting surfaces, some of which mimic natural superwetting surfaces. However, they still face challenges, such as being workable only for specific damages, external stimulation to trigger the healing process, and poor self-healing ability in the water, marine, or biological systems. There is a lack of fundamental understanding as well. This article comprehensively reviews self-healing superwetting surfaces, including their fabrication strategies, essential rules for materials design, and self-healing properties. Self-healing triggered by different external stimuli is summarized. The potential applications of self-healing superwetting surfaces are highlighted. This article consists of four main sections: (1) the functional surfaces with various superwetting properties, (2) natural self-healing superwetting surfaces (i.e., plants, insects, and creatures) and their healing mechanism, (3) recent research development in various self-healing superwetting surfaces, their preparation, wetting properties in the air or liquid media, and healing mechanism, and (4) the prospects including existing challenges, our views and potential solutions to the challenges, and future research directions.
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Affiliation(s)
- Hua Zhou
- College of Textiles & Clothing, State Key Laboratory for Biofibers and Eco-textiles, Collaborative Innovation Centre for Eco-textiles of Shandong Province, Qingdao University, Qingdao 266071, China
| | - Haitao Niu
- College of Textiles & Clothing, State Key Laboratory for Biofibers and Eco-textiles, Collaborative Innovation Centre for Eco-textiles of Shandong Province, Qingdao University, Qingdao 266071, China
| | - Hongxia Wang
- Institute for Frontier Materials, Deakin University, Geelong Victoria 3216, Australia.,Institute for Nanofiber Intelligent Manufacture and Applications, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Tong Lin
- Institute for Nanofiber Intelligent Manufacture and Applications, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China.,State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
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6
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He Y, Chen J, Qian Y, Wei Y, Wang C, Ye Z, Liu Y, Chen G. Organohydrogel based on cellulose-stabilized emulsion for electromagnetic shielding, flame retardant, and strain sensing. Carbohydr Polym 2022; 298:120132. [DOI: 10.1016/j.carbpol.2022.120132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/15/2022] [Accepted: 09/16/2022] [Indexed: 11/24/2022]
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7
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Li Y, Qin Y, Wu G, Zheng Y, Ban Q. Metal-coordination-driven self-assembly synthesis of porous iron/carbon composite for high-efficiency electromagnetic wave absorption. J Colloid Interface Sci 2022. [DOI: 10.1016/j.jcis.2022.05.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Gao D, Guo S, Zhou Y, Lyu B, Li X, Zhao P, Ma J. Absorption-Dominant, Low-Reflection Multifunctional Electromagnetic Shielding Material Derived from Hydrolysate of Waste Leather Scraps. ACS APPLIED MATERIALS & INTERFACES 2022; 14:38077-38089. [PMID: 35971686 DOI: 10.1021/acsami.2c10787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
High-performance flexible conductive films are highly promising for the development of wearable devices, artificial intelligence, medical care, etc. Herein, a three-step procedure was developed to produce electromagnetic interference (EMI) shielding, Joule heating, and a hydrophobic nanofiber film based on hydrolysate of waste leather scraps (HWLS): (i) electrospinning preparation of the HWLS/polyacrylonitrile (PAN)/zeolitic imidazolate framework-67 (ZIF-67) nanofiber film, (ii) carbonization of the HWLS/PAN/ZIF-67 nanofiber film, and (iii) coating of the carbon nanofiber@cobalt (Co@CNF) nanofiber film with perfluorooctyltriethoxysilane (POTS). The X-ray diffraction results showed that metal nanoparticles and amorphous carbon had obvious peaks. The micromorphology results showed that metal nanoparticles were coated with carbon nanofibers. The conductivity and shielding efficiency of the carbon nanofiber film with 250 μm thickness could reach 45 S/m and 49 dB, respectively, and absorption values (A > 0.5) were higher than reflection (R) values for the Co@CNF nanofiber film, which indicated that the contribution of absorption loss was more significant than that of reflection loss. Ultrafast electrothermal response performances were also achieved, which could guarantee the normal functioning of films in cold conditions. The water contact angle of the Co@CNF@POTS nanofiber film was ∼151.3°, which displayed a self-cleaning property with water-proofing and antifouling. Absorption-dominant and low-reflection EMI shielding and electrothermal films not only showed broad application potential in flexible wearable electronic devices but also provided new avenues for the utilization of leather solid waste.
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Affiliation(s)
- Dangge Gao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- National Demonstration Center for Experimental Light Chemistry and Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China
| | - Shihao Guo
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- National Demonstration Center for Experimental Light Chemistry and Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China
| | - Yingying Zhou
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China
| | - Bin Lyu
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- National Demonstration Center for Experimental Light Chemistry and Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China
| | - Xinjing Li
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- National Demonstration Center for Experimental Light Chemistry and Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China
| | - Ping Zhao
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- National Demonstration Center for Experimental Light Chemistry and Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China
| | - Jianzhong Ma
- College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- National Demonstration Center for Experimental Light Chemistry and Engineering Education, Shaanxi University of Science and Technology, Xi'an 710021, China
- Xi'an Key Laboratory of Green Chemicals and Functional Materials, Xi'an 710021, China
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9
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Zheng X, Tang J, Wang P, Wang Z, Zou L, Li C. Interfused core-shell heterogeneous graphene/MXene fiber aerogel for high-performance and durable electromagnetic interference shielding. J Colloid Interface Sci 2022; 628:994-1003. [PMID: 35973264 DOI: 10.1016/j.jcis.2022.08.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/31/2022] [Accepted: 08/03/2022] [Indexed: 01/27/2023]
Abstract
Flexible, lightweight, and durable electromagnetic interference (EMI) shielding materials are urgently required to solve the increasingly serious electromagnetic radiation pollution. Transition metal carbides/nitrides (MXenes) are promising candidates for EMI shielding materials because of their excellent metallic electrical conductivity. However, MXenes are highly susceptible to oxidization when exposed to wet environments, leading to the loss of their functional properties and degradation of reliability and stability. Herein, an interfused core-shell heterogeneous reduced graphene oxide (rGO)/MXene aerogel (GMA) is designed for the first time via coaxial wet spinning and freeze-drying. The fabricated GMAs exhibit excellent EMI shielding performance, and the EMI shielding effectiveness (SE) and specific EMI SE can be up to 83.3 dB and 3119 dB·cm3/g, respectively, which is higher than most carbon-based and MXene-based aerogels and foams. More importantly, GMAs have only a 17.4 % degradation in EMI shielding performance after 120 days due to the protection of hydrophobic graphene sheath, exhibiting superior EMI shielding durability to its MXene film counterpart. Moreover, the hydrophobic GMAs exhibit good oil/water separation and thermal insulation performance. The interfused core-shell GMAs are highly promising for applications in durable EMI shielding, thermal insulation, oil/water separation and sensors, etc.
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Affiliation(s)
- Xianhong Zheng
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China; College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
| | - Jinhao Tang
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Peng Wang
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Zongqian Wang
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China.
| | - Lihua Zou
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
| | - Changlong Li
- School of Textile and Garment, Anhui Polytechnic University, Wuhu, Anhui 241000, China
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10
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Yu Y, Yi P, Xu W, Sun X, Deng G, Liu X, Shui J, Yu R. Environmentally Tough and Stretchable MXene Organohydrogel with Exceptionally Enhanced Electromagnetic Interference Shielding Performances. NANO-MICRO LETTERS 2022; 14:77. [PMID: 35312862 PMCID: PMC8938570 DOI: 10.1007/s40820-022-00819-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 02/09/2022] [Indexed: 05/04/2023]
Abstract
Conductive hydrogels have potential applications in shielding electromagnetic (EM) radiation interference in deformable and wearable electronic devices, but usually suffer from poor environmental stability and stretching-induced shielding performance degradation. Although organohydrogels can improve the environmental stability of materials, their development is at the expense of reducing electrical conductivity and thus weakening EM interference shielding ability. Here, a MXene organohydrogel is prepared which is composed of MXene network for electron conduction, binary solvent channels for ion conduction, and abundant solvent-polymer-MXene interfaces for EM wave scattering. This organohydrogel possesses excellent anti-drying ability, low-temperature tolerance, stretchability, shape adaptability, adhesion and rapid self-healing ability. Two effective strategies have been proposed to solve the problems of current organohydrogel shielding materials. By reasonably controlling the MXene content and the glycerol-water ratio in the gel, MXene organohydrogel can exhibit exceptionally enhanced EM interference shielding performances compared to MXene hydrogel due to the increased physical cross-linking density of the gel. Moreover, MXene organohydrogel shows attractive stretching-enhanced interference effectiveness, caused by the connection and parallel arrangement of MXene nanosheets. This well-designed MXene organohydrogel has potential applications in shielding EM interference in deformable and wearable electronic devices.
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Affiliation(s)
- Yuanhang Yu
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, People's Republic of China
| | - Peng Yi
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, People's Republic of China
| | - Wenbin Xu
- Science and Technology on Optical Radiation Laboratory, Beijing Institute of Environmental Features, Beijing, 100854, People's Republic of China
| | - Xin Sun
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, People's Republic of China
- Science and Technology on Electromagnetic Scattering Laboratory, Beijing Institute of Environmental Features, Beijing, 100854, People's Republic of China
| | - Gao Deng
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, People's Republic of China
| | - Xiaofang Liu
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, People's Republic of China.
| | - Jianglan Shui
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, People's Republic of China
| | - Ronghai Yu
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, People's Republic of China
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11
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Li DY, Liu LX, Wang QW, Zhang HB, Chen W, Yin G, Yu ZZ. Functional Polyaniline/MXene/Cotton Fabrics with Acid/Alkali-Responsive and Tunable Electromagnetic Interference Shielding Performances. ACS APPLIED MATERIALS & INTERFACES 2022; 14:12703-12712. [PMID: 35232019 DOI: 10.1021/acsami.2c00797] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Although two-dimensional transition-metal carbides (MXenes) and intrinsic conductive polymers have been combined to produce functional electromagnetic interference (EMI) shielding composites, acid/alkali-responsive EMI shielding textiles have not been reported. Herein, electrically conductive polyaniline (PANI)/MXene/cotton fabrics (PMCFs) are fabricated by an efficient vacuum filtration-assisted spray-coating method for acid/alkali-responsive and tunable EMI shielding applications on the basis of the high electrical conductivity of MXene sheets and the acid/alkali doping/de-doping feature of PANI nanowires. The as-prepared PMCF exhibits a sensitive ammonia response of 19.6% at an ammonia concentration of 200 ppm. The high EMI shielding efficiency of ∼54 dB is achieved by optimizing the decorated structure of the PANI/MXene coating on the cotton fabrics. More importantly, the PMCF can act adaptively as a "switch" for EMI shielding between the efficient strong shielding of 24 dB and the inefficient weak shielding of 15 dB driven by the stimulation of hydrogen chloride and ammonia vapors. This multifunctional fabric would possess promising applications for intelligent garments, flexible electronic sensors, and smart electromagnetic wave response in special environments.
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Affiliation(s)
- Dan-Yang Li
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Liu-Xin Liu
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Qi-Wei Wang
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hao-Bin Zhang
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Wei Chen
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Guang Yin
- Beijing Key Laboratory of Advanced Functional Polymer Composites, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhong-Zhen Yu
- State Key Laboratory of Organic-Inorganic Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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12
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Zhang X, Shi Y, Xu J, Ouyang Q, Zhang X, Zhu C, Zhang X, Chen Y. Identification of the Intrinsic Dielectric Properties of Metal Single Atoms for Electromagnetic Wave Absorption. NANO-MICRO LETTERS 2021; 14:27. [PMID: 34894293 PMCID: PMC8665961 DOI: 10.1007/s40820-021-00773-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 11/11/2021] [Indexed: 05/11/2023]
Abstract
Atomically dispersed metals on N-doped carbon supports (M-NxCs) have great potential applications in various fields. However, a precise understanding of the definitive relationship between the configuration of metal single atoms and the dielectric loss properties of M-NxCs at the atomic-level is still lacking. Herein, we report a general approach to synthesize a series of three-dimensional (3D) honeycomb-like M-NxC (M = Mn, Fe, Co, Cu, or Ni) containing metal single atoms. Experimental results indicate that 3D M-NxCs exhibit a greatly enhanced dielectric loss compared with that of the NC matrix. Theoretical calculations demonstrate that the density of states of the d orbitals near the Fermi level is significantly increased and additional electrical dipoles are induced due to the destruction of the symmetry of the local microstructure, which enhances conductive loss and dipolar polarization loss of 3D M-NxCs, respectively. Consequently, these 3D M-NxCs exhibit excellent electromagnetic wave absorption properties, outperforming the most commonly reported absorbers. This study systematically explains the mechanism of dielectric loss at the atomic level for the first time and is of significance to the rational design of high-efficiency electromagnetic wave absorbing materials containing metal single atoms.
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Affiliation(s)
- Xinci Zhang
- Key Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin, 150001, People's Republic of China
| | - Yanan Shi
- Key Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin, 150001, People's Republic of China
| | - Jia Xu
- Key Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin, 150001, People's Republic of China
| | - Qiuyun Ouyang
- Key Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin, 150001, People's Republic of China
| | - Xiao Zhang
- Key Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin, 150001, People's Republic of China.
| | - Chunling Zhu
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, People's Republic of China.
| | - Xiaoli Zhang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, People's Republic of China
| | - Yujin Chen
- Key Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin, 150001, People's Republic of China.
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, People's Republic of China.
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, People's Republic of China.
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