1
|
Zhan B, Qu Y, Qi X, Ding J, Shao JJ, Gong X, Yang JL, Chen Y, Peng Q, Zhong W, Lv H. Mixed-Dimensional Assembly Strategy to Construct Reduced Graphene Oxide/Carbon Foams Heterostructures for Microwave Absorption, Anti-Corrosion and Thermal Insulation. NANO-MICRO LETTERS 2024; 16:221. [PMID: 38884840 PMCID: PMC11183034 DOI: 10.1007/s40820-024-01447-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 05/18/2024] [Indexed: 06/18/2024]
Abstract
Considering the serious electromagnetic wave (EMW) pollution problems and complex application condition, there is a pressing need to amalgamate multiple functionalities within a single substance. However, the effective integration of diverse functions into designed EMW absorption materials still faces the huge challenges. Herein, reduced graphene oxide/carbon foams (RGO/CFs) with two-dimensional/three-dimensional (2D/3D) van der Waals (vdWs) heterostructures were meticulously engineered and synthesized utilizing an efficient methodology involving freeze-drying, immersing absorption, secondary freeze-drying, followed by carbonization treatment. Thanks to their excellent linkage effect of amplified dielectric loss and optimized impedance matching, the designed 2D/3D RGO/CFs vdWs heterostructures demonstrated commendable EMW absorption performances, achieving a broad absorption bandwidth of 6.2 GHz and a reflection loss of - 50.58 dB with the low matching thicknesses. Furthermore, the obtained 2D/3D RGO/CFs vdWs heterostructures also displayed the significant radar stealth properties, good corrosion resistance performances as well as outstanding thermal insulation capabilities, displaying the great potential in complex and variable environments. Accordingly, this work not only demonstrated a straightforward method for fabricating 2D/3D vdWs heterostructures, but also outlined a powerful mixed-dimensional assembly strategy for engineering multifunctional foams for electromagnetic protection, aerospace and other complex conditions.
Collapse
Affiliation(s)
- Beibei Zhan
- College of Physics, Guizhou Province Key Laboratory for Photoelectrics Technology and Application, Guizhou University, Guiyang City, 550025, People's Republic of China
| | - Yunpeng Qu
- College of Physics, Guizhou Province Key Laboratory for Photoelectrics Technology and Application, Guizhou University, Guiyang City, 550025, People's Republic of China
| | - Xiaosi Qi
- College of Physics, Guizhou Province Key Laboratory for Photoelectrics Technology and Application, Guizhou University, Guiyang City, 550025, People's Republic of China.
| | - Junfei Ding
- College of Physics, Guizhou Province Key Laboratory for Photoelectrics Technology and Application, Guizhou University, Guiyang City, 550025, People's Republic of China
| | - Jiao-Jing Shao
- College of Materials and Metallurgy, Guizhou University, Guiyang City, 550025, People's Republic of China
| | - Xiu Gong
- College of Physics, Guizhou Province Key Laboratory for Photoelectrics Technology and Application, Guizhou University, Guiyang City, 550025, People's Republic of China
| | - Jing-Liang Yang
- College of Physics, Guizhou Province Key Laboratory for Photoelectrics Technology and Application, Guizhou University, Guiyang City, 550025, People's Republic of China
| | - Yanli Chen
- College of Physics, Guizhou Province Key Laboratory for Photoelectrics Technology and Application, Guizhou University, Guiyang City, 550025, People's Republic of China
| | - Qiong Peng
- College of Physics, Guizhou Province Key Laboratory for Photoelectrics Technology and Application, Guizhou University, Guiyang City, 550025, People's Republic of China
| | - Wei Zhong
- National Laboratory of Solid State Microstructures and Jiangsu Provincial Laboratory for NanoTechnology, Nanjing University, Nanjing, 210093, People's Republic of China
| | - Hualiang Lv
- Department of Materials Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200433, People's Republic of China.
| |
Collapse
|
2
|
Caramitu AR, Lungu MV, Ciobanu RC, Ion I, Marin M, Marinescu V, Pintea J, Aradoaei S, Schreiner OD. Recycled Polypropylene/Strontium Ferrite Polymer Composite Materials with Electromagnetic Shielding Properties. Polymers (Basel) 2024; 16:1129. [PMID: 38675050 PMCID: PMC11054054 DOI: 10.3390/polym16081129] [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: 11/15/2023] [Revised: 02/21/2024] [Accepted: 04/15/2024] [Indexed: 04/28/2024] Open
Abstract
This paper presents the obtaining and characterization of recycled polypropylene/strontium ferrite (PP/SrFe12O19) polymer composite materials with applications in the electromagnetic shielding of vehicle interiors (mainly automotive electronics-carcasses) from the electromagnetic radiation emitted mainly by exterior sources-electrical lines and supply sources-in terms of the development of the new electrical vehicles. With this aim, suitable polymer composite materials were developed using SrFe12O19 filler in two forms (powder and concentrate). The recycled PP polymer and composite materials with a PP/SrFe12O19 weight ratio of 75/25 and 70/30 were obtained in two stages, i.e., pellets by extrusion and samples for testing through a melt injection process. The characterization of the obtained materials took into account the requirements imposed by the desired applications. It consisted of determining the mechanical and dielectric properties, and microstructure analyses, along with the determination of the resistance to the action of a temperature of 70 °C, which is higher than the temperatures created during the summer inside vehicles. The performance of these materials as electromagnetic shields was assessed through functional tests consisting of the determination of magnetic permeability and the estimation of the electromagnetic shielding efficiency (SE). The obtained results confirmed the improvement of the mechanical, dielectric, and magnetic properties of the PP/SrFe12O19 composites compared to the selected PP polymers. It is also found that all the composite materials exhibited reflective shielding properties (SER from -71.5 dB to -56.7 dB), with very little absorption shielding. The most performant material was the composite made of PP/SrFe12O19 powder with a weight ratio of 70/30. The promising results recommend this composite material for potential use in automotive shielding applications against electromagnetic pollution.
Collapse
Affiliation(s)
- Alina Ruxandra Caramitu
- National Institute for Research and Development in Electrical Engineering ICPE—CA Bucharest, 030138 Bucharest, Romania; (A.R.C.); (M.V.L.); (I.I.); (M.M.); (V.M.); (J.P.)
| | - Magdalena Valentina Lungu
- National Institute for Research and Development in Electrical Engineering ICPE—CA Bucharest, 030138 Bucharest, Romania; (A.R.C.); (M.V.L.); (I.I.); (M.M.); (V.M.); (J.P.)
| | - Romeo Cristian Ciobanu
- Department of Electrical Measurements and Materials, Gheorghe Asachi Technical University, 700050 Iasi, Romania; (S.A.); (O.D.S.)
| | - Ioana Ion
- National Institute for Research and Development in Electrical Engineering ICPE—CA Bucharest, 030138 Bucharest, Romania; (A.R.C.); (M.V.L.); (I.I.); (M.M.); (V.M.); (J.P.)
| | - Mihai Marin
- National Institute for Research and Development in Electrical Engineering ICPE—CA Bucharest, 030138 Bucharest, Romania; (A.R.C.); (M.V.L.); (I.I.); (M.M.); (V.M.); (J.P.)
| | - Virgil Marinescu
- National Institute for Research and Development in Electrical Engineering ICPE—CA Bucharest, 030138 Bucharest, Romania; (A.R.C.); (M.V.L.); (I.I.); (M.M.); (V.M.); (J.P.)
| | - Jana Pintea
- National Institute for Research and Development in Electrical Engineering ICPE—CA Bucharest, 030138 Bucharest, Romania; (A.R.C.); (M.V.L.); (I.I.); (M.M.); (V.M.); (J.P.)
| | - Sebastian Aradoaei
- Department of Electrical Measurements and Materials, Gheorghe Asachi Technical University, 700050 Iasi, Romania; (S.A.); (O.D.S.)
| | - Oliver Daniel Schreiner
- Department of Electrical Measurements and Materials, Gheorghe Asachi Technical University, 700050 Iasi, Romania; (S.A.); (O.D.S.)
| |
Collapse
|
3
|
Liu TT, Zheng Q, Cao WQ, Wang YZ, Zhang M, Zhao QL, Cao MS. In Situ Atomic Reconstruction Engineering Modulating Graphene-Like MXene-Based Multifunctional Electromagnetic Devices Covering Multi-Spectrum. NANO-MICRO LETTERS 2024; 16:173. [PMID: 38619642 PMCID: PMC11018580 DOI: 10.1007/s40820-024-01391-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/13/2024] [Indexed: 04/16/2024]
Abstract
With the diversified development of big data, detection and precision guidance technologies, electromagnetic (EM) functional materials and devices serving multiple spectrums have become a hot topic. Exploring the multispectral response of materials is a challenging and meaningful scientific question. In this study, MXene/TiO2 hybrids with tunable conduction loss and polarization relaxation are fabricated by in situ atomic reconstruction engineering. More importantly, MXene/TiO2 hybrids exhibit adjustable spectral responses in the GHz, infrared and visible spectrums, and several EM devices are constructed based on this. An antenna array provides excellent EM energy harvesting in multiple microwave bands, with |S11| up to - 63.2 dB, and can be tuned by the degree of bending. An ultra-wideband bandpass filter realizes a passband of about 5.4 GHz and effectively suppresses the transmission of EM signals in the stopband. An infrared stealth device has an emissivity of less than 0.2 in the infrared spectrum at wavelengths of 6-14 µm. This work can provide new inspiration for the design and development of multifunctional, multi-spectrum EM devices.
Collapse
Affiliation(s)
- Ting-Ting Liu
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Qi Zheng
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Wen-Qiang Cao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Yu-Ze Wang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Min Zhang
- Department of Physics, Beijing Technology and Business University, Beijing, 100048, People's Republic of China
| | - Quan-Liang Zhao
- School of Mechanical and Materials Engineering, North China University of Technology, Beijing, 100144, People's Republic of China
| | - Mao-Sheng Cao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China.
| |
Collapse
|
4
|
Lin Z, Duan S, Liu M, Dang C, Qian S, Zhang L, Wang H, Yan W, Zhu M. Insights into Materials, Physics, and Applications in Flexible and Wearable Acoustic Sensing Technology. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2306880. [PMID: 38015990 DOI: 10.1002/adma.202306880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 11/22/2023] [Indexed: 11/30/2023]
Abstract
Sound plays a crucial role in the perception of the world. It allows to communicate, learn, and detect potential dangers, diagnose diseases, and much more. However, traditional acoustic sensors are limited in their form factors, being rigid and cumbersome, which restricts their potential applications. Recently, acoustic sensors have made significant advancements, transitioning from rudimentary forms to wearable devices and smart everyday clothing that can conform to soft, curved, and deformable surfaces or surroundings. In this review, the latest scientific and technological breakthroughs with insightful analysis in materials, physics, design principles, fabrication strategies, functions, and applications of flexible and wearable acoustic sensing technology are comprehensively explored. The new generation of acoustic sensors that can recognize voice, interact with machines, control robots, enable marine positioning and localization, monitor structural health, diagnose human vital signs in deep tissues, and perform organ imaging is highlighted. These innovations offer unique solutions to significant challenges in fields such as healthcare, biomedicine, wearables, robotics, and metaverse. Finally, the existing challenges and future opportunities in the field are addressed, providing strategies to advance acoustic sensing technologies for intriguing real-world applications and inspire new research directions.
Collapse
Affiliation(s)
- Zhiwei Lin
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
- School of Electrical and Electronic Engineering, Nanyang Technological University (NTU), Singapore, 639798, Singapore
| | - Shengshun Duan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
- School of Electrical and Electronic Engineering, Nanyang Technological University (NTU), Singapore, 639798, Singapore
| | - Mingyang Liu
- School of Electrical and Electronic Engineering, Nanyang Technological University (NTU), Singapore, 639798, Singapore
| | - Chao Dang
- School of Electrical and Electronic Engineering, Nanyang Technological University (NTU), Singapore, 639798, Singapore
| | - Shengtai Qian
- School of Electrical and Electronic Engineering, Nanyang Technological University (NTU), Singapore, 639798, Singapore
| | - Luxue Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Hailiang Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Wei Yan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, 201620, China
| |
Collapse
|
5
|
Han X, Cai H, Wang G, Zhang S, Liu X, Huang Y. Synthesis of Hierarchical CF@Fe 3O 4 Fibers Decorated with MoS 2 Layers Forming Core-Sheath Microstructure toward Tunable and Efficient Electromagnetic Wave Absorption. ACS APPLIED MATERIALS & INTERFACES 2024; 16:4886-4895. [PMID: 38231559 DOI: 10.1021/acsami.3c13623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
Hierarchical structural design has been verified as a feasible strategy to fabricate effective electromagnetic wave (EMW) absorbers, so we designed hierarchical core-sheath composites with magnetic particles and dielectric layers. In this work, a hierarchical structure of carbon fiber (CF)@Fe3O4@MoS2 (CPDF7-M) was prepared by introducing Fe3O4 and depositing MoS2 layers on the surface of fibers. Due to the synergistic effects from the CF@Fe3O4 increasing the conductive and magnetic loss and the outer MoS2 layers improving the impedance matching, the optimal reflection loss (RL) value was -63.1 dB at 2.7 mm and the effective absorption bandwidth (EAB) was 9.1 GHz covering the X and Ku band. Moreover, the EAB values were adjusted with a specific MoS2 loading at different thicknesses, which provided the necessary reference for the construction of efficient and flexible absorbers in the EMW absorption fields.
Collapse
Affiliation(s)
- Xiaopeng Han
- School of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, PR China
| | - Huiwu Cai
- School of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, PR China
| | - Guangheng Wang
- School of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, PR China
| | - Shuai Zhang
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Xudong Liu
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Ying Huang
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China
| |
Collapse
|
6
|
Wu L, Wang G, Shi S, Liu X, Liu J, Zhao J, Wang G. Ni-Carbon Microtube/Polytetrafluoroethylene as Flexible Electrothermal Microwave Absorbers. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2304218. [PMID: 37721442 PMCID: PMC10625052 DOI: 10.1002/advs.202304218] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/07/2023] [Indexed: 09/19/2023]
Abstract
Flexible microwave absorbers with Joule heating performance are urgently desired to meet the demands of extreme service environments. Herein, a type of flexible composite film is constructed by homogeneously dispersing a hierarchical Ni-carbon microtube (Ni/CMT) into a processable polytetrafluoroethylene (PTFE) matrix. The Ni/CMT are interconnected into a 3D conductive network, in which the huge interior cavity of the carbon microtube (CMT) improves impedance matching and provides additional hyper channels for electromagnetic (EM) waves dissipation, and the hierarchical magnetic Ni nanoparticles enhance the synergistic interactions between confined heterogeneous interfaces. Such an ingenious structure endows the composites with excellent electrothermal performance and improves their serviceability for application under extreme environments. Moreover, under a low fill loading of 3 wt.%, the Ni/CMT/PTFE (NCP) can achieve excellent low-frequency microwave absorption (MA) property with a minimum reflection loss of -59.12 dB at 5.92 GHz, which covers almost the entire C-band. Relying on their brilliant MA property, an EM sensor is designed and achieved by the resonance coupling of the patterned NCP. This work opens up a new way for the design of next-generation microwave absorbers that meet the requirements of EM packaging, proofing water and removing ice, fire safety, and health monitoring.
Collapse
Affiliation(s)
- Lihong Wu
- State Key Laboratory of Marine Resource Utilization in South China SeaSchool of Material Science and EngineeringHainan UniversityHaikouHainan570228China
| | - Guizhen Wang
- State Key Laboratory of Marine Resource Utilization in South China SeaSchool of Material Science and EngineeringHainan UniversityHaikouHainan570228China
| | - Shaohua Shi
- State Key Laboratory of Marine Resource Utilization in South China SeaSchool of Material Science and EngineeringHainan UniversityHaikouHainan570228China
- Key Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials (Ministry of Education)Shandong UniversityJinanShandong250061China
| | - Xiao Liu
- State Key Laboratory of Marine Resource Utilization in South China SeaSchool of Material Science and EngineeringHainan UniversityHaikouHainan570228China
| | - Jun Liu
- State Key Laboratory of Marine Resource Utilization in South China SeaSchool of Material Science and EngineeringHainan UniversityHaikouHainan570228China
| | - Jinchuan Zhao
- State Key Laboratory of Marine Resource Utilization in South China SeaSchool of Material Science and EngineeringHainan UniversityHaikouHainan570228China
| | - Guilong Wang
- Key Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials (Ministry of Education)Shandong UniversityJinanShandong250061China
| |
Collapse
|
7
|
Du Y, Liu Y, Wang A, Kong J. Research progress and future perspectives on electromagnetic wave absorption of fibrous materials. iScience 2023; 26:107873. [PMID: 37817934 PMCID: PMC10561061 DOI: 10.1016/j.isci.2023.107873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/12/2023] Open
Abstract
Electromagnetic waves have caused great harm to military safety, high-frequency electronic components, and precision instruments, and so forth, which urgently requires the development of lightweight, high-efficiency, broadband electromagnetic waves (EMW) absorbing materials for protection. As the basic fibrous materials, carbon fibers (CFs) and SiC fibers (SiCf) have been widely applied in EMW absorption due to their intrinsic characteristics of low density, high mechanical properties, high conductivity, and dielectric loss mechanism. Nevertheless, it has remained a great challenge to develop lightweight EMW-absorbing fibrous materials with strong absorption capability and broad frequency range. In this review, the fundamental electromagnetic attenuation mechanisms are firstly introduced. Furthermore, the preparation, structure, morphology, and absorbing performance of CFs and SiCf-based EMW absorbing composites are summarized. In addition, prospective research opportunities are highlighted toward the development of fibrous absorbing materials with the excellent absorption performance.
Collapse
Affiliation(s)
- Yuzhang Du
- Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yichen Liu
- Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Aoao Wang
- Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Jie Kong
- Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| |
Collapse
|
8
|
Lee JS, Kim JW, Lee JH, Son YK, Kim YB, Woo K, Lee C, Kim ID, Seok JY, Yu JW, Park JH, Lee KJ. Flash-Induced High-Throughput Porous Graphene via Synergistic Photo-Effects for Electromagnetic Interference Shielding. NANO-MICRO LETTERS 2023; 15:191. [PMID: 37532956 PMCID: PMC10397175 DOI: 10.1007/s40820-023-01157-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 06/17/2023] [Indexed: 08/04/2023]
Abstract
Porous 2D materials with high conductivity and large surface area have been proposed for potential electromagnetic interference (EMI) shielding materials in future mobility and wearable applications to prevent signal noise, transmission inaccuracy, system malfunction, and health hazards. Here, we report on the synthesis of lightweight and flexible flash-induced porous graphene (FPG) with excellent EMI shielding performance. The broad spectrum of pulsed flashlight induces photo-chemical and photo-thermal reactions in polyimide films, forming 5 × 10 cm2-size porous graphene with a hollow pillar structure in a few milliseconds. The resulting material demonstrated low density (0.0354 g cm-3) and outstanding absolute EMI shielding effectiveness of 1.12 × 105 dB cm2 g-1. The FPG was characterized via thorough material analyses, and its mechanical durability and flexibility were confirmed by a bending cycle test. Finally, the FPG was utilized in drone and wearable applications, showing effective EMI shielding performance for internal/external EMI in a drone radar system and reducing the specific absorption rate in the human body.
Collapse
Affiliation(s)
- Jin Soo Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jeong-Wook Kim
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jae Hee Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Yong Koo Son
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Young Bin Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Kyoohee Woo
- Department of Printed Electronics, Nano-Convergence Manufacturing Systems Research Division, Korea Institute of Machinery and Materials (KIMM), 156 Gajeongbuk-Ro, Yuseong-Gu, Daejeon, 34103, Republic of Korea
| | - Chanhee Lee
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Il-Doo Kim
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jae Young Seok
- Department of Mechanical System Design Engineering, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul, 01811, Republic of Korea
| | - Jong Won Yu
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jung Hwan Park
- Department of Mechanical Engineering (Department of Aeronautics, Mechanical and Electronic Convergence Engineering), Kumoh National Institute of Technology, 61 Daehak-ro, Gumi, Gyeongbuk, 39177, Republic of Korea.
| | - Keon Jae Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
| |
Collapse
|
9
|
Nan Z, Wei W, Lin Z, Chang J, Hao Y. Flexible Nanocomposite Conductors for Electromagnetic Interference Shielding. NANO-MICRO LETTERS 2023; 15:172. [PMID: 37420119 PMCID: PMC10328908 DOI: 10.1007/s40820-023-01122-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 05/02/2023] [Indexed: 07/09/2023]
Abstract
HIGHLIGHTS Convincing candidates of flexible (stretchable/compressible) electromagnetic interference shielding nanocomposites are discussed in detail from the views of fabrication, mechanical elasticity and shielding performance. Detailed summary of the relationship between deformation of materials and electromagnetic shielding performance. The future directions and challenges in developing flexible (particularly elastic) shielding nanocomposites are highlighted. With the extensive use of electronic communication technology in integrated circuit systems and wearable devices, electromagnetic interference (EMI) has increased dramatically. The shortcomings of conventional rigid EMI shielding materials include high brittleness, poor comfort, and unsuitability for conforming and deformable applications. Hitherto, flexible (particularly elastic) nanocomposites have attracted enormous interest due to their excellent deformability. However, the current flexible shielding nanocomposites present low mechanical stability and resilience, relatively poor EMI shielding performance, and limited multifunctionality. Herein, the advances in low-dimensional EMI shielding nanomaterials-based elastomers are outlined and a selection of the most remarkable examples is discussed. And the corresponding modification strategies and deformability performance are summarized. Finally, expectations for this quickly increasing sector are discussed, as well as future challenges.
Collapse
Affiliation(s)
- Ze Nan
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, 2 South Taibai Road, Xi'an, 710071, People's Republic of China
| | - Wei Wei
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, 2 South Taibai Road, Xi'an, 710071, People's Republic of China.
- Advanced Interdisciplinary Research Center for Flexible Electronics, Xidian University, 2 South Taibai Road, Xi'an, 710071, People's Republic of China.
| | - Zhenhua Lin
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, 2 South Taibai Road, Xi'an, 710071, People's Republic of China
| | - Jingjing Chang
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, 2 South Taibai Road, Xi'an, 710071, People's Republic of China.
- Advanced Interdisciplinary Research Center for Flexible Electronics, Xidian University, 2 South Taibai Road, Xi'an, 710071, People's Republic of China.
| | - Yue Hao
- State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, 2 South Taibai Road, Xi'an, 710071, People's Republic of China
| |
Collapse
|
10
|
Li M, Song X, Xue J, Ye F, Yin L, Cheng L, Fan X. Construction of Hollow Carbon Nanofibers with Graphene Nanorods as Nano-Antennas for Lower-Frequency Microwave Absorption. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37356111 DOI: 10.1021/acsami.3c04839] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
Electromagnetic (EM) wave absorbers at a lower-frequency region (2-8 GHz) require higher attenuation ability to achieve efficient absorption. However, the impedance match condition and attenuation ability are usually inversely related. Herein, one-dimensional hollow carbon nanofibers with graphene nanorods are prepared based on coaxial electrospinning technology. The morphology of graphene nanorods can be controlled by the annealing process. As the annealing time increased from 2 to 8 h, graphene nanospheres grew into graphene nanorods, which were catalyzed by Co catalysts derived from ZIF-67 nanoparticles. These nanorods can play the role of nano-antennas, which can guide EM waves into materials to enhance impedance match conditions. As a result, the carbon nanofibers with graphene nanorods possess a larger impedance match area with higher attenuation ability. The minimum reflection loss reaches -57.1 dB at a thickness of 4.6 mm, and the effective absorption bandwidth can cover almost both the S and C bands (2.4-8 GHz). This work contributes a meaningful perspective into the modulation of microwave absorption performance in the lower-frequency range.
Collapse
Affiliation(s)
- Minghang Li
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
| | - Xinrui Song
- DGUT-CNAM Institute, Dongguan University of Technology, Dongguan 523106, China
| | - Jimei Xue
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
| | - Fang Ye
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
| | - Ling Yin
- DGUT-CNAM Institute, Dongguan University of Technology, Dongguan 523106, China
| | - Laifei Cheng
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
| | - Xiaomeng Fan
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
| |
Collapse
|
11
|
Hou W, Peng K, Li S, Huang F, Wang B, Yu X, Yang H, Zhang H. Designing flower-like MOFs-derived N-doped carbon nanotubes encapsulated magnetic NiCo composites with multi-heterointerfaces for efficient electromagnetic wave absorption. J Colloid Interface Sci 2023; 646:265-274. [PMID: 37196500 DOI: 10.1016/j.jcis.2023.05.049] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/04/2023] [Accepted: 05/08/2023] [Indexed: 05/19/2023]
Abstract
In order to acquire exceptional electromagnetic wave absorption properties, the microstructure design and component modification of composites are essential. Metal-organic frameworks (MOFs), due to the unique metal-organic crystalline coordination, tunable morphology, high surface area, and well-defined pores, have been regarded as promising electromagnetic wave absorption materials precursors. However, the inadequate contact abilities between adjacent MOFs nanoparticles endow it with undesirable electromagnetic wave dissipation capacity at a low filler loading, which is a great challenge to break size effect of nanoparticles to achieve efficient absorption. Herein, NiCo-MOFs derived N-doped carbon nanotubes encapsulated with NiCo nanoparticles anchored on flowers-like composites (denoted as NCNT/NiCo/C) were successfully prepared through facile hydrothermal method followed by thermal chemical vapor deposition with melamine-assisted catalyst. By controlling the Ni/Co ratio in precursor, the tunable morphology and microstructure of MOFs are achieved. Most importantly, the derived N-doped carbon nanotubes tightly connect the adjacent nanosheets to construct the special 3D interconnected conductive network, which effectively accelerates the charge transfer and improves the conduction loss. And notably, the NCNT/NiCo/C composite delivers excellent electromagnetic wave absorption performance with minimum reflection loss of -66.1 dB and wide effective absorption bandwidth up to 4.64 GHz when the Ni/Co ratio is 1:1. This work provides a novel method for the preparation of morphology controllable MOFs-derived composites and realizes high-performance electromagnetic wave absorption properties.
Collapse
Affiliation(s)
- Wenxuan Hou
- School of Materials Science and Engineering, Anhui University, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei, 230601, China
| | - Kang Peng
- School of Materials Science and Engineering, Anhui University, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei, 230601, China
| | - Shikuo Li
- School of Materials Science and Engineering, Anhui University, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei, 230601, China
| | - Fangzhi Huang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, 230601, China
| | - Baojun Wang
- School of Materials Science and Engineering, Anhui University, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei, 230601, China
| | - Xinyao Yu
- School of Materials Science and Engineering, Anhui University, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei, 230601, China.
| | - Hengxiu Yang
- Guizhou Provincial Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang, 550018, China.
| | - Hui Zhang
- School of Materials Science and Engineering, Anhui University, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei, 230601, China.
| |
Collapse
|
12
|
Sun M, Dong Z, Wu L, Yao H, Niu W, Xu D, Chen P, Gupta HS, Zhang Y, Dong Y, Chen C, Zhao L. Fast extraction of three-dimensional nanofiber orientation from WAXD patterns using machine learning. IUCRJ 2023; 10:297-308. [PMID: 36961758 PMCID: PMC10161767 DOI: 10.1107/s205225252300204x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 03/03/2023] [Indexed: 05/06/2023]
Abstract
Structural disclosure of biological materials can help our understanding of design disciplines in nature and inspire research for artificial materials. Synchrotron microfocus X-ray diffraction is one of the main techniques for characterizing hierarchically structured biological materials, especially the 3D orientation distribution of their interpenetrating nanofiber networks. However, extraction of 3D fiber orientation from X-ray patterns is still carried out by iterative parametric fitting, with disadvantages of time consumption and demand for expertise and initial parameter estimates. When faced with high-throughput experiments, existing analysis methods cannot meet the real time analysis challenges. In this work, using the assumption that the X-ray illuminated volume is dominated by two groups of nanofibers in a gradient biological composite, a machine-learning based method is proposed for fast and automatic fiber orientation metrics prediction from synchrotron X-ray micro-focused diffraction data. The simulated data were corrupted in the training procedure to guarantee the prediction ability of the trained machine-learning algorithm in real-world experimental data predictions. Label transformation was used to resolve the jump discontinuity problem when predicting angle parameters. The proposed method shows promise for application in the automatic data-processing pipeline for fast analysis of the vast data generated from multiscale diffraction-based tomography characterization of textured biomaterials.
Collapse
Affiliation(s)
- Minghui Sun
- Multidisciplinary Initiative Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Zheng Dong
- Multidisciplinary Initiative Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Liyuan Wu
- Multidisciplinary Initiative Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Haodong Yao
- Multidisciplinary Initiative Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Wenchao Niu
- Multidisciplinary Initiative Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Deting Xu
- Multidisciplinary Initiative Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Ping Chen
- Multidisciplinary Initiative Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Himadri S Gupta
- School of Engineering and Material Science, Queen Mary University of London, London E1 4NS, United Kingdom
| | - Yi Zhang
- Multidisciplinary Initiative Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Yuhui Dong
- Multidisciplinary Initiative Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Chunying Chen
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Lina Zhao
- Multidisciplinary Initiative Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| |
Collapse
|
13
|
Dai YL, Guo AP, Gong MH, Zhang XJ, Wen BY. Rational design of heterointerface between MoO 2 and N-doped carbon with tunable electromagnetic interference shielding capacity. J Colloid Interface Sci 2023; 636:492-500. [PMID: 36652824 DOI: 10.1016/j.jcis.2023.01.047] [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: 11/24/2022] [Revised: 01/08/2023] [Accepted: 01/09/2023] [Indexed: 01/13/2023]
Abstract
Exploring highly efficient electromagnetic interference (EMI) shielding filler is urgently desired for next-generation wireless communication and integrated electronics. In this regard, a series of heterogeneous MoO2/N-doped carbon (MoO2/NC) nanorods with tunable conductivity have been successfully synthesized by regulating the pyrolysis temperature within 600, 700 and 800 °C. Profiting from the rational design of heterointerface and low-dimensional structure, the MoO2/NC powder achieves stronger EMI shielding capacity with the incremental temperature. It is found that the MoO2/NC-800 nanorods exhibit the optimal average EMI shielding effectiveness (SE) of 57.2 dB at a thickness of ∼0.3 mm in the X band. Meanwhile, the corresponding shielding mechanisms of MoO2/NC nanorods are also elaborately explained. More interestingly, the increase of sintering temperature makes an obvious effect on absorption loss but has little influence on reflection loss, demonstrating that adjusting the pyrolysis temperature is an effective strategy to strengthen the electromagnetic energy dissipation.
Collapse
Affiliation(s)
- Yun-Liang Dai
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, PR China
| | - Ao-Ping Guo
- Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, PR China
| | - Mei-Hua Gong
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, PR China
| | - Xiao-Juan Zhang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, PR China
| | - Bian-Ying Wen
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, PR China.
| |
Collapse
|
14
|
Wang D, Lian J, Wang Y, Jia P, Gao F. Turbostratic Lattice and Electronegativity Modification Jointly Enabled an Ultra-High-Rate and Long-Lived Carbon Anode for Potassium-Ion Batteries. ACS APPLIED MATERIALS & INTERFACES 2023; 15:15585-15594. [PMID: 36917253 DOI: 10.1021/acsami.3c00912] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Potassium-ion batteries (PIBs) are considered as a promising technology alternative to lithium-ion batteries due to more abundance of potassium than lithium and a lower redox potential of K/K+ than that of Na/Na+. The critical limitation in PIBs is the electrode with poor rate capability and cycling stability induced by the sluggish reaction kinetics and large volume change during potassiation and depotassiation. In this work, we report a turbostratic lattice iodine-doped carbon (TLIC) nanosheet as an advanced innovative anode for PIBs displaying fast charge/discharge and electrode stability. The turbostratic lattice caused by doping of large-sized iodine and the unique charge transfer between iodine/carbon atoms creates more active sites and a shorter transport distance for K ions, improves the electrochemical activity, promotes rapid ion diffusion, and enhances pseudocapacitive behavior. The TLIC exhibits a high capacity of 433.5 mAh g-1 at 50 mA g-1, an ultrahigh rate capability of 162.1 mAh g-1 at 20 A g-1, and an excellent capacity retention of ∼96% (206 mAh g-1) after 4000 cycles. The combination of turbostratic lattice and pseudocapactive storage is an effective approach to designing carbon electrodes with the transformational performance of high capacity, rate performance, and long lifetime for practical applications of PIBs.
Collapse
Affiliation(s)
- Dong Wang
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-Utilization, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Jie Lian
- Department of Mechanical, Aerospace, and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Yuanzhe Wang
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-Utilization, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Peng Jia
- Key Laboratory of Applied Chemistry, College of Environmental and Chemical Engineering, Yanshan University, No. 438 Hebei Street, Qinhuangdao 066004, China
| | - Faming Gao
- Tianjin Key Laboratory of Brine Chemical Engineering and Resource Eco-Utilization, Tianjin University of Science & Technology, Tianjin 300457, China
| |
Collapse
|
15
|
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.
Collapse
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.
| |
Collapse
|
16
|
Yao L, Wang Y, Zhao J, Zhu Y, Cao M. Multifunctional Nanocrystalline-Assembled Porous Hierarchical Material and Device for Integrating Microwave Absorption, Electromagnetic Interference Shielding, and Energy Storage. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2208101. [PMID: 36932880 DOI: 10.1002/smll.202208101] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/22/2023] [Indexed: 06/18/2023]
Abstract
Multifunctional applications including efficient microwave absorption and electromagnetic interference (EMI) shielding as well as excellent Li-ion storage are rarely achieved in a single material. Herein, a multifunctional nanocrystalline-assembled porous hierarchical NiO@NiFe2 O4 /reduced graphene oxide (rGO) heterostructure integrating microwave absorption, EMI shielding, and Li-ion storage functions is fabricated and tailored to develop high-performance energy conversion and storage devices. Owing to its structural and compositional advantages, the optimized NiO@NiFe2 O4 /15rGO achieves a minimum reflection loss of -55 dB with a matching thickness of 2.3 mm, and the effective absorption bandwidth is up to 6.4 GHz. The EMI shielding effectiveness reaches 8.69 dB. NiO@NiFe2 O4 /15rGO exhibits a high initial discharge specific capacity of 1813.92 mAh g-1 , which reaches 1218.6 mAh g-1 after 289 cycles and remains at 784.32 mAh g-1 after 500 cycles at 0.1 A g-1 . In addition, NiO@NiFe2 O4 /15rGO demonstrates a long cycling stability at high current densities. This study provides an insight into the design of advanced multifunctional materials and devices and provides an innovative method of solving current environmental and energy problems.
Collapse
Affiliation(s)
- Lihua Yao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
- School of Mechatronical Engineering, Shanxi Datong University, Datong, 037003, China
- Engineering Research Center of Coal-Based Ecological Carbon Sequestration Technology of the Ministry of Education, Shanxi Datong University, Datong, 037009, China
| | - Yuchang Wang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Jianguo Zhao
- Engineering Research Center of Coal-Based Ecological Carbon Sequestration Technology of the Ministry of Education, Shanxi Datong University, Datong, 037009, China
| | - Youqi Zhu
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| | - Maosheng Cao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China
| |
Collapse
|
17
|
Sun W, Lou Z, Xu L, Ma Q, Han H, Chen M, Wang Q, Han J, Li Y. Bioinspired Carbon Superstructures for Efficient Electromagnetic Shielding. ACS APPLIED MATERIALS & INTERFACES 2023; 15:4358-4370. [PMID: 36622958 DOI: 10.1021/acsami.2c21622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Biologically inspired superstructural materials exhibit wide application prospects in many fields, in terms of mitigating increasingly serious electromagnetic (EM) pollution in the civil field. Here, we successfully obtain bamboo slices with uniform pore size distribution through the advanced bamboo transverse splitting technology developed by our group previously and prepare large-scale honeycomb-like carbon-based tubular array (CTA) structures with a controllable pore size, graphitization degree, and selectable conductivity property. Based on the simulation and experimental results, the EM shielding performance of CTAs is proven to be sensitive to the microchannel aperture size and the EM energy incident angle, which is attributed to the difference in the propagation rate of induced electrons in different directions. Among the candidates, CTA-middle-1500 exhibits the best shielding performance against incident EM energy with average SE/ρ values of 123.7 and 144.5 dB cm3 g-1 for perpendicular and parallel directions, respectively, showing its application potential as a lightweight and efficient EM shielding material. The predicted optimal incident angle for CTA-middle-1500 against EM energy radiation is 15°, with the largest RCS reduction value of 26.1 dB m2. The excellent EM shielding performance is attributed to the good reflection capacity involved with the high conductivities of the CTAs.
Collapse
Affiliation(s)
- Wei Sun
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing210037, People's Republic of China
| | - Zhichao Lou
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing210037, People's Republic of China
| | - Lei Xu
- Institute of Agricultural Facilities and Equipment, Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture and Rural Affairs, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu210014, People's Republic of China
| | - Qianli Ma
- International Center of Bamboo and Rattan, Beijing100102, People's Republic of China
| | - He Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing210037, People's Republic of China
| | - Meiling Chen
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing210037, People's Republic of China
| | - Qiuyi Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing210037, People's Republic of China
| | - Jingquan Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing210037, People's Republic of China
| | - Yanjun Li
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing210037, People's Republic of China
| |
Collapse
|
18
|
Zhang X, Zheng Q, Chen W, Chen Z, Chen Y, Fan Q, Li H, Liu H, Zhu S. Nanoarchitectonics of RGO-Wrapped CNF/GO Aerogels with Controlled Pore Structures by PVA-Assisted Freeze-Casting Approach for Efficient Sound and Microwave Absorption. Chemistry 2023; 29:e202202714. [PMID: 36168665 DOI: 10.1002/chem.202202714] [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: 08/30/2022] [Indexed: 01/11/2023]
Abstract
Acoustic absorption materials play an important role in eliminating the negative effects of noise. Herein, a polyvinyl alcohol (PVA)-assisted freeze-casting was developed for controllably fabricating reduced graphene oxide wrapped carbon nanofiber (RGO@CNF)/graphene oxide composite aerogel. During the freeze-casting, PVA was used as an icing inhibitor to control the size of ice crystals. While the concentration of PVA increased from 0 to 15 mg ⋅ ml-1 , the average pore size of the aerogel was reduced from 154 to 45 μm. Due to the modulation of the pore size and composition, the propagation path and friction loss for sound were optimized, especially at low frequency. For instance, the normalized sound absorption coefficient of RGO@CNF/GO-10 achieves 0.79 (250-6300 Hz). The sample also exhibits a desirable microwave absorbing property whose maximum reflection loss is -47.3 dB (9.44 GHz, d=3.0 mm). Prospectively, this synthetic strategy can be extended to develop other forms of elastic aerogel with a controlled pore size.
Collapse
Affiliation(s)
- Xiaoxiao Zhang
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Qitan Zheng
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Wenzheng Chen
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Zhixin Chen
- School of Mechanical, Materials, Mechatronics and Biomedical Engineering, University of Wollongong, Wollongong, 2522, Australia
| | - Yujie Chen
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Qunfu Fan
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Hua Li
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Hezhou Liu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Shenmin Zhu
- State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| |
Collapse
|
19
|
Jia Q, An Z, Li M, Liu R, Xiao W, Zhang J. Cu-Co Hybrid Crystals Assembled on Hollow Microsphere: Temperature-Dependent Top-Down Synthesis and Aggregation-Induced Conversion from Microwave Shielding to Absorption. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205735. [PMID: 36437051 DOI: 10.1002/smll.202205735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 11/03/2022] [Indexed: 06/16/2023]
Abstract
The construction of hollow metallic microspheres with rationally designed building blocks of the metal shell is a promising way to achieve low density and functionality control, but the microengineering of the metallic structures on a micrometer spherical surface is a great challenge. In the present work, a novel and simple calcination-induced aggregation strategy is developed to realize the distribution status and microstructure control of Co-Cu bimetal building blocks assembled on a hollow glass microsphere support, and thus a series of low-density (0.58 g cm-3 ) dual shell composite hollow microspheres are constructed with gradient in electromagnetic property depending on the calcination temperature (CT). The optimized microwave shielding performance can be achieved at a CT of 500 °C, while further increasing CT to 700 °C leads to an interesting conversion from microwave shielding to absorption with an optimized effective absorption bandwidth of 4.64 GHz at a low matching thickness of 1.33 mm. The mechanism underlying the CT-dependent metallic shell structure variation and further the decisive effect of the shell structure on the microwave response behavior are proposed based on a series of contrast experiments.
Collapse
Affiliation(s)
- Qianqian Jia
- State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zhenguo An
- State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Man Li
- State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ran Liu
- State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Weixin Xiao
- State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jingjie Zhang
- State Key Laboratory of Technologies in Space Cryogenic Propellants, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| |
Collapse
|
20
|
Wang C, Liu Y, Jia Z, Zhao W, Wu G. Multicomponent Nanoparticles Synergistic One-Dimensional Nanofibers as Heterostructure Absorbers for Tunable and Efficient Microwave Absorption. NANO-MICRO LETTERS 2022; 15:13. [PMID: 36520259 PMCID: PMC9755410 DOI: 10.1007/s40820-022-00986-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 10/21/2022] [Indexed: 05/27/2023]
Abstract
Application of novel radio technologies and equipment inevitably leads to electromagnetic pollution. One-dimensional polymer-based composite membrane structures have been shown to be an effective strategy to obtain high-performance microwave absorbers. Herein, we reported a one-dimensional N-doped carbon nanofibers material which encapsulated the hollow Co3SnC0.7 nanocubes in the fiber lumen by electrospinning. Space charge stacking formed between nanoparticles can be channeled by longitudinal fibrous structures. The dielectric constant of the fibers is highly related to the carbonization temperature, and the great impedance matching can be achieved by synergetic effect between Co3SnC0.7 and carbon network. At 800 °C, the necklace-like Co3SnC0.7/CNF with 5% low load achieves an excellent RL value of - 51.2 dB at 2.3 mm and the effective absorption bandwidth of 7.44 GHz with matching thickness of 2.5 mm. The multiple electromagnetic wave (EMW) reflections and interfacial polarization between the fibers and the fibers internal contribute a major effect to attenuating the EMW. These strategies for regulating electromagnetic performance can be expanded to other electromagnetic functional materials which facilitate the development of emerging absorbers.
Collapse
Affiliation(s)
- Chenxi Wang
- Institute of Materials for Energy and Environment, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, People's Republic of China
| | - Yue Liu
- Institute of Materials for Energy and Environment, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, People's Republic of China
| | - Zirui Jia
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, Shandong, People's Republic of China.
- Weihai Innovation Institute, Qingdao University, Qingdao, 264200, Shandong, People's Republic of China.
| | - Wanru Zhao
- Institute of Materials for Energy and Environment, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, People's Republic of China
| | - Guanglei Wu
- Institute of Materials for Energy and Environment, State Key Laboratory of Bio-Fibers and Eco-Textiles, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, People's Republic of China.
| |
Collapse
|
21
|
Gu W, Ong SJH, Shen Y, Guo W, Fang Y, Ji G, Xu ZJ. A Lightweight, Elastic, and Thermally Insulating Stealth Foam With High Infrared-Radar Compatibility. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2204165. [PMID: 36285685 PMCID: PMC9762302 DOI: 10.1002/advs.202204165] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/24/2022] [Indexed: 05/21/2023]
Abstract
The development of infrared-radar compatible materials/devices is challenging because the requirements of material properties between infrared and radar stealth are contradictory. Herein, a composite of poly(3, 4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) coated melamine foam is designed to integrate the advantages of the dual materials and the created heterogeneous interface between them. The as-designed PEDOT:PSS@melamine composite shows excellent mechanical properties, outstanding thermal insulation, and improved thermal infrared stealth performance. The relevant superb radar stealth performance including the minimum reflection loss value of -57.57 dB, the optimum ultra-wide bandwidth of 10.52 GHz, and the simulation of radar cross section reduction value of 17.68 dB m2 , can be achieved. The optimal specific electromagnetic wave absorption performance can reach up as high as 3263.02 dB·cm3 g-1 . The average electromagnetic interference shielding effectiveness value can be 30.80 dB. This study provides an approach for the design of high-performance stealth materials with infrared-radar compatibility.
Collapse
Affiliation(s)
- Weihua Gu
- College of Material Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing210016P. R. China
- School of Materials Sciences and EngineeringNanyang Technological University50 Nanyang AvenueSingapore639798Singapore
| | - Samuel Jun Hoong Ong
- School of Materials Sciences and EngineeringNanyang Technological University50 Nanyang AvenueSingapore639798Singapore
| | - Yuhong Shen
- College of Material Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing210016P. R. China
| | - Wenyi Guo
- College of Material Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing210016P. R. China
| | - Yiting Fang
- College of Material Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing210016P. R. China
| | - Guangbin Ji
- College of Material Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing210016P. R. China
| | - Zhichuan J. Xu
- School of Materials Sciences and EngineeringNanyang Technological University50 Nanyang AvenueSingapore639798Singapore
| |
Collapse
|
22
|
Yang Z, Gao L, Ren W, Zhang R, Chen Y, Zhou Q, Sun K, Jie Z, Jia Y. Study on Electromagnetic Performance of La 0.5Sr 0.5CoO 3/Al 2O 3 Ceramic with Metal Periodic Structure at X-Band. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8147. [PMID: 36431641 PMCID: PMC9692617 DOI: 10.3390/ma15228147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/06/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
A radar absorbing material (RAM) is designed by combining the La0.5Sr0.5CoO3/Al2O3 ceramic and the metal periodic structure. The phase constitution and the microscopic morphology of the La0.5Sr0.5CoO3/Al2O3 ceramic are examined, respectively. The electrical properties and magnetic properties of the La0.5Sr0.5CoO3/Al2O3 ceramic are also measured at the temperature range of 25~500 °C. Based on the experimental and simulation results, the changes in the reflection loss along with the structure parameters of RAM are analyzed at 500 °C. The analytical results show that the absorption property of the RAM increases with the increase in the temperature. When the thickness of the La0.5Sr0.5CoO3/Al2O3 ceramic is 1.5 mm, a reflection loss <−10 dB can be obtained in the frequency range from approximately 8.2 to 16 GHz. More than 90% microwave energy can be consumed in the RAM, which may be applied in the high temperature environment.
Collapse
Affiliation(s)
- Zhaoning Yang
- School of Science, Xi’an University of Posts and Telecommunications, Xi’an 710121, China
| | - Lu Gao
- Department of Materials Research, AVIC Manufacturing Technology Institute, Beijing 100024, China
| | - Wei Ren
- School of Science, Xi’an University of Posts and Telecommunications, Xi’an 710121, China
| | - Ruiduan Zhang
- Shaanxi Huaqin Technology Co., Ltd., Xi’an 710121, China
| | - Yangyang Chen
- School of Science, Xi’an University of Posts and Telecommunications, Xi’an 710121, China
| | - Qian Zhou
- School of Science, Xi’an University of Posts and Telecommunications, Xi’an 710121, China
| | - Kai Sun
- School of Science, Xi’an University of Posts and Telecommunications, Xi’an 710121, China
| | - Ziqi Jie
- School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China
| | - Yanmin Jia
- School of Science, Xi’an University of Posts and Telecommunications, Xi’an 710121, China
| |
Collapse
|
23
|
Sushmita K, Ghosh D, Nilawar S, Bose S. Absorption Dominated Directional Electromagnetic Interference Shielding through Asymmetry in a Multilayered Construct with an Exceptionally High Green Index. ACS APPLIED MATERIALS & INTERFACES 2022; 14:49140-49157. [PMID: 36279251 DOI: 10.1021/acsami.2c13704] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Fabricating green electromagnetic interference (EMI) shields is the need of the hour because strong secondary reflections in the vicinity of the shield adversely affect the environment and the reliability of the neighboring devices. To this end, the present work aims to maximize the absorption-based EMI shielding through a multilayered construct comprising a porous structure (pore size less than λ/5), a highly conducting entity, and a layer to match the impedance. The elements of this construct were positioned so that the incoming electromagnetic (EM) radiation interacts with the other layers of the construct before the conducting entity. This positioning of the layers in the construct offers a high green shielding index (gs) and low reflection coefficient (R ∼ 0.1) with an exceptionally high percent absorption (up to 99%). Polyurethane (PU) foams were fabricated using the salt-leaching technique and strategically positioned with carbon nanotube (CNT) papers and polycarbonate (PC)-based films to obtain symmetric and asymmetric constructs. These structures were then employed to gain mechanistic insight into the directional dependency of shielding performance, gs, and heat dissipation ability. Interestingly, maximum total shielding effectiveness (SET) of -52 dB (88% absorption @8.2 GHz) and specific shielding effectiveness/thickness (SSEt) of -373 dB/cm2g were achieved for a symmetric construct whereas, for the asymmetric construct, the SET and SSEt were -37 dB and -280 dB/cm2g, respectively, with an exceptionally high gs of 8.6, the highest reported so far. The asymmetricity in the construct led to directional dependence of the absorption component (% SEA, shielding effectiveness due to absorption) and heat dissipation, primarily governed by the electrical and thermal conductivity gradient, respectively. This study opens new avenues in this field and reports constructs with an exceptionally high green index.
Collapse
Affiliation(s)
- Kumari Sushmita
- Centre for Nanoscience and Engineering, Indian Institute of Science, Bangalore560012, India
| | - Debabrata Ghosh
- Department of Materials Engineering, Indian Institute of Science, Bangalore560012, India
| | - Sagar Nilawar
- Department of Materials Engineering, Indian Institute of Science, Bangalore560012, India
| | - Suryasarathi Bose
- Department of Materials Engineering, Indian Institute of Science, Bangalore560012, India
| |
Collapse
|
24
|
Su H, Luan B, Dong Y, Zhang X, Liu Z, Wang C. Lotus leaf-like Ni-decorated SiC with combined superhydrophobicity and enhanced microwave absorption performance. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
25
|
Akram R, Saleem M, Farooq Z, Yaseen M, Almohaimeed ZM, Zafar Q. Integrated Capacitive- and Resistive-Type Bimodal Relative Humidity Sensor Based on 5,10,15,20-Tetraphenylporphyrinatonickel(II) (TPPNi) and Zinc Oxide (ZnO) Nanocomposite. ACS OMEGA 2022; 7:30590-30600. [PMID: 36061702 PMCID: PMC9434763 DOI: 10.1021/acsomega.2c04313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 08/10/2022] [Indexed: 06/01/2023]
Abstract
The development of high-performance humidity sensors to cater for a plethora of applications, ranging from agriculture to intelligent medical monitoring systems, calls for the selection of a reliable and ultrasensitive sensing material. A simplistic device architecture, robust quantification of ambient relative humidity (% RH), and compatibility with the contemporary integrated circuit technology make a bimodal (capacitive and resistive) surface-type sensor to be a prominent choice for device fabrication. Herein, we have proposed and demonstrated a facile realization of a 5,10,15,20-tetraphenylporphyrinatonickel (II)-zinc oxide (TPPNi-ZnO) nanocomposite-based bimodal surface-type % RH sensor. The TPPNi macromolecule and ZnO nanoparticles have been synthesized by an eco-benign microwave-assisted technique and a thermal-budget chemical precipitation method, respectively. It is speculated from the morpohological study that specific surface area improvement, via the provision of ZnO nanoparticles on micro-pyramidal structures of TPPNi, may reinforce the sensing properties of the fabricated humidity sensor. The relative humidity sensing capacitive and resistive characteristics of the sensor have been monitored in 40-85% relative humidity (% RH) bandwidth. The fabricated sensor under the biasing conditions of 1 V of applied bias (V rms) and 500 Hz AC test frequency exhibits a significantly higher sensitivity of 387.03 pF/% RH and 95.79 kΩ/% RH in bimodal operation. The average values of both the response and recovery times of the capacitive sensor have been estimated to be ∼30 s. It has also been debated why this high degree of sensitivity and considerable reduction in response/recovery time has been obtained. In addition, the intense and wide bandwidth spectral response of the TPPNi-ZnO nanocomposite indicates that it may also be utilized as a potential light-harvesting heterostructured nanohybrid in future studies.
Collapse
Affiliation(s)
- Rizwan Akram
- Department
of Electrical Engineering, College of Engineering, Qassim University, P.O. Box 6677, Buraydah 51452, Saudi
Arabia
| | - Muhammad Saleem
- Department
of Physics, University of Management and
Technology, Lahore 54000, Pakistan
| | - Zahid Farooq
- Department
of Physics, Division of Science & Technology, University of Education, Lahore 54000, Pakistan
| | - Muhammad Yaseen
- Department
of Chemistry, Division of Science & Technology, University of Education, Lahore 54000, Pakistan
| | - Ziyad M. Almohaimeed
- Department
of Electrical Engineering, College of Engineering, Qassim University, P.O. Box 6677, Buraydah 51452, Saudi
Arabia
| | - Qayyum Zafar
- Department
of Physics, University of Management and
Technology, Lahore 54000, Pakistan
| |
Collapse
|
26
|
Freire LA, Lemos ACC, Miranda KWE, da Silva JP, de Oliveira JE. Statistical optimization for preparing nanofibrous mats of polybutylene adipate co‐terephthalate/poly(vinylpyrrolidone) blends by solution blow spinning. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Leonardo Almeida Freire
- Department of Engineering (DEG) Federal University of Lavras (UFLA) Lavras Minas Gerais Brazil
| | - Ana Carolina Cortez Lemos
- Postgraduate Program in Biomaterials Engineering Federal University of Lavras Lavras Minas Gerais Brazil
| | | | | | | |
Collapse
|
27
|
Bi S, Song Y, Hou G, Li H, Yang N, Liu Z. Lightweight and Compression-Resistant Carbon-Based Sandwich Honeycomb Absorber with Excellent Electromagnetic Wave Absorption. NANOMATERIALS 2022; 12:nano12152622. [PMID: 35957052 PMCID: PMC9370204 DOI: 10.3390/nano12152622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 07/26/2022] [Accepted: 07/26/2022] [Indexed: 12/05/2022]
Abstract
Honeycomb (HC) composites were fabricated by impregnating an aramid paper HC core with carbon nanotubes/carbon black/reduced graphene oxide (CNTs/CB/RGO) and polyurethane resin (PU). The sandwich HC (SHC) absorber containing HC composites with superior microwave-absorption properties were fabricated using the vacuum bagging method. Through the absorption performance of the SHC absorber, it can be concluded that the triple-layer SHC absorber has the best absorbing performance. The effective bandwidth (reflection loss < 10 dB) can be achieved in the entire frequency range of 2.2−18 GHz, and the minimum RL value is −35 dB. Furthermore, the compressive stress of the triple-layer SHC absorber reached 3.71 MPa, which is similar to the compressive stress of aluminum HC panels for aviation. Benefiting from the excellent integration of absorption and mechanical performance, the SHC has significant potential in the stealth-technology field.
Collapse
Affiliation(s)
- Song Bi
- 304 Department, Xi’an Research Institute of High-Tech, Xi’an 710025, China; (Y.S.); (G.H.); (H.L.); (N.Y.)
- Correspondence: (S.B.); (Z.L.)
| | - Yongzhi Song
- 304 Department, Xi’an Research Institute of High-Tech, Xi’an 710025, China; (Y.S.); (G.H.); (H.L.); (N.Y.)
| | - Genliang Hou
- 304 Department, Xi’an Research Institute of High-Tech, Xi’an 710025, China; (Y.S.); (G.H.); (H.L.); (N.Y.)
| | - Hao Li
- 304 Department, Xi’an Research Institute of High-Tech, Xi’an 710025, China; (Y.S.); (G.H.); (H.L.); (N.Y.)
| | - Nengjun Yang
- 304 Department, Xi’an Research Institute of High-Tech, Xi’an 710025, China; (Y.S.); (G.H.); (H.L.); (N.Y.)
| | - Zhaohui Liu
- College of Weapon Science and Technology, Xi’an Technological University, Xi’an 710025, China
- Correspondence: (S.B.); (Z.L.)
| |
Collapse
|
28
|
Huang M, Wang L, Li X, Wu Z, Zhao B, Pei K, Liu X, Zhang X, Che R. Magnetic Interacted Interaction Effect in MXene Skeleton: Enhanced Thermal-Generation for Electromagnetic Interference Shielding. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2201587. [PMID: 35676238 DOI: 10.1002/smll.202201587] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 05/04/2022] [Indexed: 06/15/2023]
Abstract
With the rapid advancements of portable and wearable equipment, high-efficiency electromagnetic interference (EMI) shielding materials are highly entailed to eliminate radiated electromagnetic pollution. Herein, by assembling hexagonal SrFe12 O19 flakes into a Ti3 C2 Tx MXene/MWCNT substrate, a magnetized Ti3 C2 Tx -based film is successfully fabricated by a facile filtration approach. Carbon nanotubes are used as isolation agents to realize the submicroscopic dispersion of MXene and SrFe12 O19 . The obtained MXene/MWCNTs/SrFe12 O19 film shows a high electrical conductivity of 438 S cm-1 and an excellent EMI shielding effectiveness of 62.9 dB in X-band at a thickness of only 40 µm. Benefiting from a strong magnetic response ability and an expanded magnetic coupling space, hexagonal SrFe12 O19 sheets can efficiently consume incident magnetic field energy by domain wall migration and the ferromagnetic resonance effect. Boosted EMI shielding performance can be achieved by improving the magnetic loss in the Ti3 C2 Tx MXene/MWCNTs/SrFe12 O19 film, preventing the secondary reflection of electromagnetic waves. Meanwhile, magnetized MXene-based films display the freestanding and flexible features and are suitable for installation in electric devices. It is anticipated that this strategy offers new ideas for designing EMI shielding films and in broadening potential utility of MXene-based materials.
Collapse
Affiliation(s)
- Mengqiu Huang
- Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Department of Materials Science, Fudan University, Shanghai, 200438, P. R. China
| | - Lei Wang
- Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Department of Materials Science, Fudan University, Shanghai, 200438, P. R. China
| | - Xiao Li
- Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Department of Materials Science, Fudan University, Shanghai, 200438, P. R. China
| | - Zhengchen Wu
- Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Department of Materials Science, Fudan University, Shanghai, 200438, P. R. China
| | - Biao Zhao
- Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Department of Materials Science, Fudan University, Shanghai, 200438, P. R. China
| | - Ke Pei
- Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Department of Materials Science, Fudan University, Shanghai, 200438, P. R. China
| | - Xianhu Liu
- Key Laboratory of Materials Processing and Mold, Zhengzhou University, Ministry of Education, Zhengzhou, 450002, P. R. China
| | - Xuefeng Zhang
- Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310012, P. R. China
| | - Renchao Che
- Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Department of Materials Science, Fudan University, Shanghai, 200438, P. R. China
- Joint-Research Center for Computational Materials, Zhejiang Laboratory, Hangzhou, 311100, P. R. China
| |
Collapse
|
29
|
Shi Z, Liu X, Zhou Y, Cong H. Study of graphene oxide complexed hemicucurbit[6]uril on polypropylene composites: Crystallization behavior, foaming performance, and mechanical properties. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5704] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Zhiliang Shi
- The Institute of Chemistry and Chemical Industry Guizhou University Guiyang China
| | - Xiaoke Liu
- The Institute of Chemistry and Chemical Industry Guizhou University Guiyang China
| | - Yuhui Zhou
- The Institute of Chemistry and Chemical Industry Guizhou University Guiyang China
| | - Hang Cong
- The Institute of Chemistry and Chemical Industry Guizhou University Guiyang China
| |
Collapse
|
30
|
Moya R, Gaitán-Álvarez J, Berrocal A, Merazzo KJ. In Situ Synthesis of Fe 3O 4 Nanoparticles and Wood Composite Properties of Three Tropical Species. MATERIALS (BASEL, SWITZERLAND) 2022; 15:3394. [PMID: 35591726 PMCID: PMC9099938 DOI: 10.3390/ma15093394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/28/2022] [Accepted: 05/02/2022] [Indexed: 02/01/2023]
Abstract
Magnetic wood is a composite material that achieves harmony between both woody and magnetic functions through the active addition of magnetic characteristics to the wood itself. In addition to showing magnetic characteristics, magnetic wood offers low specific gravity, humidity control and acoustic absorption ability. It has potential for broad applications in the fields of electromagnetic wave absorption, electromagnetic interference shielding, furniture, etc. This work reports on the synthesis of Fe3O4 nanoparticles (NPs) in wood from three tropical species (Pinus oocarpa, Vochysia ferruginea and Vochysia guatemalensis) using a solution of iron (III) hexahydrate and iron (II) chloride tetrahydrate with a molar ratio of 1.6:1 at a concentration of 1.2 mol/L ferric chlorate under 700 kPa pressure for 2 h. Afterward, the wood samples were impregnated with an ammonia solution with three different immersion times. The treated wood (wood composites) was evaluated for the weight gain percentage (WPG), density, ash content and Fe3O4 content by the Fourier transform infrared spectroscopy (FTIR) spectrum, X-ray diffraction (XRD) and vibrating sample magnetometry (VSM). The results show that the species P. oocarpa had the lowest values of WPG, and its density decreased in relation to the untreated wood, with lower ash and Fe3O4 NP content. The XRD and some FTIR signals associated with changes in the wood component showed small differences from the untreated wood. Fe3O4 NPs presented nanoparticles with the smallest diameter of (approx. 7.3 to 8.5 nm), and its saturation magnetization (Ms) parameters were the lowest. On the other hand, V. guatemalensis was the species with the best Ms values, but the wood composite had the lowest density. In relation to the different immersion times, the magnetic properties were not statistically affected. Finally, the magnetization values of the studied species were lower than those of the pure Fe3O4 nanoparticles, since the species only have a certain amount of these nanoparticles (NPs), and this was reflected proportionally in the magnetization of saturation.
Collapse
Affiliation(s)
- Roger Moya
- Instituto Tecnológico de Costa Rica, Escuela de Ingeniería Forestal, Apartado, Cartago 159-7050, Costa Rica; (J.G.-Á.); (A.B.)
| | - Johanna Gaitán-Álvarez
- Instituto Tecnológico de Costa Rica, Escuela de Ingeniería Forestal, Apartado, Cartago 159-7050, Costa Rica; (J.G.-Á.); (A.B.)
| | - Alexander Berrocal
- Instituto Tecnológico de Costa Rica, Escuela de Ingeniería Forestal, Apartado, Cartago 159-7050, Costa Rica; (J.G.-Á.); (A.B.)
| | - Karla J. Merazzo
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain;
| |
Collapse
|
31
|
Hong Y, Liu Y, Wu J, Li Y, Wu X. Enhanced Tunability of Broadband Microwave Absorption for MoSe 2/FeSe 2 Nanocomposites with a Unique Heterostructure. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04962] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yang Hong
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yue Liu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Jinzhu Wu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yang Li
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Xiaohong Wu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| |
Collapse
|
32
|
Wei L, Ma J, Ma L, Zhao C, Xu M, Qi Q, Zhang W, Zhang L, He X, Park CB. Computational Optimizing the Electromagnetic Wave Reflectivity of Double-Layered Polymer Nanocomposites. SMALL METHODS 2022; 6:e2101510. [PMID: 35146970 DOI: 10.1002/smtd.202101510] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/16/2022] [Indexed: 06/14/2023]
Abstract
Double-layered absorption-dominated electromagnetic interference (EMI) shielding composites are highly desirable to prevent secondary electromagnetic wave pollution. However, it is a tremendous challenge to optimize the shielding performance via the trial-and-error method due to the low efficiency. Herein, a novel approach of computation-aided experimental design is proposed to efficiently optimize the reflectivity of the double-layered composites. A normalized input impedance (NII) method is presented to calculate the electromagnetic wave reflectivity of multilayered EMI shielding composites. The calculated results are a good match with the experimental results. Then, the NII method is utilized to design polyvinylidene difluoride/MXene/carbon nanotube (PVDF/MXene/CNT) composites. According to the optimization of the NII method, the prepared PVDF/MXene/CNT composite has an ultralow reflectivity of 0.000057, which outperforms that reported in current work and satisfies the requirement of electromagnetic wave absorbing material. Additionally, its average EMI shielding effectiveness is 30 dB, demonstrating that PVDF/MXene/CNT composite simultaneously achieves shielding and absorption. The ultralow reflection mechanism can be ascribed to the ideal impedance match. Both the PVDF/MXene and the PVDF/CNT layers can attenuate electromagnetic energy, which subverts the traditional cognition of double-layered absorption-dominated EMI shielding composites. The NII method opens a way for the practical fabrication of double-layered absorption-dominated EMI shielding composites.
Collapse
Affiliation(s)
- Linfeng Wei
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, M5S 3G8, Canada
- School of Materials Science & Engineering, Key Laboratory of Leather Cleaner Production, China National Light Industry, College of Bioresources Chemical & Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, P. R. China
| | - Jianzhong Ma
- Key Laboratory of Leather Cleaner Production, China National Light Industry, College of Bioresources Chemical & Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, P. R. China
| | - Li Ma
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, M5S 3G8, Canada
| | - Chongxiang Zhao
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, M5S 3G8, Canada
| | - Menglong Xu
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, M5S 3G8, Canada
| | - Qing Qi
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, M5S 3G8, Canada
| | - Wenbo Zhang
- Shaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry & Technology, Shaanxi University of Science & Technology, Xi'an, 710021, P. R. China
| | - Lei Zhang
- Key Laboratory of Leather Cleaner Production, China National Light Industry, College of Bioresources Chemical & Materials Engineering, Shaanxi University of Science & Technology, Xi'an, 710021, P. R. China
| | - Xiang He
- College of Chemistry, Nanchang University, Nanchang, 330031, P. R. China
| | - Chul B Park
- Microcellular Plastics Manufacturing Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, M5S 3G8, Canada
| |
Collapse
|
33
|
Qin M, Zhang L, Wu H. Dielectric Loss Mechanism in Electromagnetic Wave Absorbing Materials. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105553. [PMID: 35128836 PMCID: PMC8981909 DOI: 10.1002/advs.202105553] [Citation(s) in RCA: 125] [Impact Index Per Article: 62.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/08/2022] [Indexed: 05/19/2023]
Abstract
Electromagnetic (EM) wave absorbing materials play an increasingly important role in modern society for their multi-functional in military stealth and incoming 5G smart era. Dielectric loss EM wave absorbers and underlying loss mechanism investigation are of great significance to unveil EM wave attenuation behaviors of materials and guide novel dielectric loss materials design. However, current researches focus more on materials synthesis rather than in-depth mechanism study. Herein, comprehensive views toward dielectric loss mechanisms including interfacial polarization, dipolar polarization, conductive loss, and defect-induced polarization are provided. Particularly, some misunderstandings and ambiguous concepts for each mechanism are highlighted. Besides, in-depth dielectric loss study and novel dielectric loss mechanisms are emphasized. Moreover, new dielectric loss mechanism regulation strategies instead of regular components compositing are summarized to provide inspiring thoughts toward simple and effective EM wave attenuation behavior modulation.
Collapse
Affiliation(s)
- Ming Qin
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Limin Zhang
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| | - Hongjing Wu
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, P. R. China
| |
Collapse
|
34
|
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.
Collapse
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
| |
Collapse
|
35
|
Li Y, Wang G, Gong A, Zhang S, Liu J, Sun N, Hao X. High-Performance Ferroelectric Electromagnetic Attenuation Materials with Multiple Polar Units Based on Nanodomain Engineering. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2106302. [PMID: 35072336 DOI: 10.1002/smll.202106302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 12/16/2021] [Indexed: 06/14/2023]
Abstract
The multirelaxation behavior is promising for high-performance dielectric materials based on polarization-controllable high-efficiency electromagnetic attenuation. However, a single polar unit is the main problem that restricts the development of dielectric materials in the field. Herein, by constructing multiple polar units based on nanodomain engineering, enhanced electromagnetic attenuation properties are achieved in La doping BiFeO3 ferroelectric ceramics. A dual-band attenuation with a maximum reflection loss of -43.4 dB together with a wide effective bandwidth (<-10 dB) of 3.3 GHz in X-band, is acquired in Bi0.85 La0.15 FeO3 which just has a thickness of 1.54 mm. A systematic experimental analysis coupled with potential well modeling suggests that the miniaturization of the ferroelectric domain, from micron to nanoscale, induces an additional interface polarization that is capable of responding to microwave frequency, leading to the formation of dual dielectric relaxation. The way that intrinsic polar unit induces another polar unit through size effect to obtain multiple contributions of electromagnetic loss provides a feasible and universal strategy to design high-performance electromagnetic attenuation materials based on the ferroelectric family.
Collapse
Affiliation(s)
- Yong Li
- Inner Mongolia Key Laboratory of Ferroelectric-Related New Energy Materials and Devices, School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, China
| | - Guangcheng Wang
- Inner Mongolia Key Laboratory of Ferroelectric-Related New Energy Materials and Devices, School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, China
| | - Ao Gong
- Inner Mongolia Key Laboratory of Ferroelectric-Related New Energy Materials and Devices, School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, China
| | - Shan Zhang
- Inner Mongolia Key Laboratory of Ferroelectric-Related New Energy Materials and Devices, School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, China
| | - Jia Liu
- Aerospace Institute of Advanced Materials & Processing Technology, Beijing, 100074, China
| | - Ningning Sun
- Inner Mongolia Key Laboratory of Ferroelectric-Related New Energy Materials and Devices, School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, China
| | - Xihong Hao
- Inner Mongolia Key Laboratory of Ferroelectric-Related New Energy Materials and Devices, School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou, 014010, China
| |
Collapse
|
36
|
Li J, Liu X, Feng Y, Yin J. Recent progress in polymer/two-dimensional nanosheets composites with novel performances. Prog Polym Sci 2022. [DOI: 10.1016/j.progpolymsci.2022.101505] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
37
|
Dai Y, Zhang XJ, Wen B, Du QY. Facile synthesis of polypyrrole nanoparticles with tunable conductivity for efficient electromagnetic wave absorption and shielding performance. CrystEngComm 2022. [DOI: 10.1039/d2ce00206j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The exploitation of highly efficient electromagnetic (EM) wave absorption and shielding material is deemed as a valid strategy to eliminate EM radiation/interference. However, it is arduous for a material to...
Collapse
|
38
|
Wu Y, Li M, Ma L, Lu M, Zhang H, Qi M. Activating bimetallic ZIF-derived polymers using facile steam-etching for the ORR. NEW J CHEM 2022. [DOI: 10.1039/d2nj02425j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An α-Fe2O3/Fe@NPC catalyst for the ORR is synthesized via a thermal shock reaction with precursors 1 and 2.
Collapse
Affiliation(s)
- Yanling Wu
- School of Transportation and Civil Engineering, Shandong Jiaotong University, Ji'nan 250357, China
- National United Engineering Laboratory for Biomedical Material Modification, Dezhou 251100, China
| | - Miantuo Li
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Liping Ma
- School of Transportation and Civil Engineering, Shandong Jiaotong University, Ji'nan 250357, China
| | - Minghui Lu
- School of Transportation and Civil Engineering, Shandong Jiaotong University, Ji'nan 250357, China
| | - Haijun Zhang
- Department of Vascular & Intervention, Tenth Peoples’ Hospital of Tongji University, Shanghai 200072, China
| | - Meili Qi
- School of Transportation and Civil Engineering, Shandong Jiaotong University, Ji'nan 250357, China
- National United Engineering Laboratory for Biomedical Material Modification, Dezhou 251100, China
| |
Collapse
|
39
|
Ma L, Hamidinejad M, Zhao B, Liang C, Park CB. Layered Foam/Film Polymer Nanocomposites with Highly Efficient EMI Shielding Properties and Ultralow Reflection. NANO-MICRO LETTERS 2021; 14:19. [PMID: 34874495 PMCID: PMC8651911 DOI: 10.1007/s40820-021-00759-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 10/10/2021] [Indexed: 05/21/2023]
Abstract
Lightweight, high-efficiency and low reflection electromagnetic interference (EMI) shielding polymer composites are greatly desired for addressing the challenge of ever-increasing electromagnetic pollution. Lightweight layered foam/film PVDF nanocomposites with efficient EMI shielding effectiveness and ultralow reflection power were fabricated by physical foaming. The unique layered foam/film structure was composed of PVDF/SiCnw/MXene (Ti3C2Tx) composite foam as absorption layer and highly conductive PVDF/MWCNT/GnPs composite film as a reflection layer. The foam layer with numerous heterogeneous interfaces developed between the SiC nanowires (SiCnw) and 2D MXene nanosheets imparted superior EM wave attenuation capability. Furthermore, the microcellular structure effectively tuned the impedance matching and prolonged the wave propagating path by internal scattering and multiple reflections. Meanwhile, the highly conductive PVDF/MWCNT/GnPs composite (~ 220 S m-1) exhibited superior reflectivity (R) of 0.95. The tailored structure in the layered foam/film PVDF nanocomposite exhibited an EMI SE of 32.6 dB and a low reflection bandwidth of 4 GHz (R < 0.1) over the Ku-band (12.4 - 18.0 GHz) at a thickness of 1.95 mm. A peak SER of 3.1 × 10-4 dB was obtained which corresponds to only 0.0022% reflection efficiency. In consequence, this study introduces a feasible approach to develop lightweight, high-efficiency EMI shielding materials with ultralow reflection for emerging applications.
Collapse
Affiliation(s)
- Li Ma
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, ON, M5S 3G8, Canada
| | - Mahdi Hamidinejad
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, ON, M5S 3G8, Canada
- Institute for Manufacturing, Department of Engineering, University of Cambridge, Cambridge, CB3 0FS, UK
| | - Biao Zhao
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, ON, M5S 3G8, Canada.
- Laboratory of Advanced Materials, Department of Materials Science, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, People's Republic of China.
- Henan Key Laboratory of Aeronautical Materials and Application Technology, School of Material Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan, 450046, People's Republic of China.
| | - Caiyun Liang
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, ON, M5S 3G8, Canada
- CAS Key Laboratory of High-Performance Synthetic Rubber and Its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, People's Republic of China
| | - Chul B Park
- Department of Mechanical and Industrial Engineering, University of Toronto, 5 King's College Road, Toronto, ON, M5S 3G8, Canada.
| |
Collapse
|
40
|
Zhang C, Peng Y, Zhang T, Guo W, Yuan Y, Li Y. In Situ Dual-Template Method of Synthesis of Inverse-Opal Co 3O 4@TiO 2 with Wideband Microwave Absorption. Inorg Chem 2021; 60:18455-18465. [PMID: 34806378 DOI: 10.1021/acs.inorgchem.1c03035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A unique porous TiO2 with Co3O4 nanoparticles anchored in (Co3O4@TiO2) is prepared by a dual-templating method for promoting electromagnetic microwave absorption (EMA). The as-prepared Co3O4@TiO2 possesses a three-dimensional (3D) ordered macroporous TiO2 skeleton and plenty of mesopores, as well as small Co3O4 nanoparticles that coexisted in the macropore walls of the TiO2 skeleton. The introduction of Co3O4 can increase the magnetic loss as well as suppress impedance mismatch, resulting in the regulation of the EMA performance. The synergetic effect of the TiO2 porous framework and Co3O4 nanoparticles with proper ratio promote microwave absorption performance. Therefore, Co3O4@TiO2-2 with 25 wt % Co3O4 nanoparticles content displays a strong and ultrawide effective absorption band (EAB) performance. The Co3O4@TiO2-2 presents a strong reflection loss of -53.9 dB at 2.95 mm. Moreover, it obtains a super broad EAB of ∼12.5 GHz at 5.0 mm. This dual-templating approach for a well-controlled porous structure could be a facial strategy for the development of high-performance electromagnetic wave absorbers.
Collapse
Affiliation(s)
- Chengwei Zhang
- School of Materials Science & Engineering, Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Yue Peng
- School of Materials Science & Engineering, Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Tieliang Zhang
- Shenyang Aircraft Design and Research Institute, Aviation Industry Corporation of China, Shenyang 110035, People's Republic of China
| | - Weibing Guo
- School of Materials Science & Engineering, Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Ye Yuan
- School of Materials Science & Engineering, Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin 300130, People's Republic of China
| | - Yibin Li
- School of Materials Science and Engineering, Beihang University, Beijing 100191, People's Republic of China
| |
Collapse
|
41
|
Lou Z, Wang Q, Kara UI, Mamtani RS, Zhou X, Bian H, Yang Z, Li Y, Lv H, Adera S, Wang X. Biomass-Derived Carbon Heterostructures Enable Environmentally Adaptive Wideband Electromagnetic Wave Absorbers. NANO-MICRO LETTERS 2021; 14:11. [PMID: 34862949 PMCID: PMC8643388 DOI: 10.1007/s40820-021-00750-z] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 10/08/2021] [Indexed: 05/19/2023]
Abstract
Although advances in wireless technologies such as miniature and wearable electronics have improved the quality of our lives, the ubiquitous use of electronics comes at the expense of increased exposure to electromagnetic (EM) radiation. Up to date, extensive efforts have been made to develop high-performance EM absorbers based on synthetic materials. However, the design of an EM absorber with both exceptional EM dissipation ability and good environmental adaptability remains a substantial challenge. Here, we report the design of a class of carbon heterostructures via hierarchical assembly of graphitized lignocellulose derived from bamboo. Specifically, the assemblies of nanofibers and nanosheets behave as a nanometer-sized antenna, which results in an enhancement of the conductive loss. In addition, we show that the composition of cellulose and lignin in the precursor significantly influences the shape of the assembly and the formation of covalent bonds, which affect the dielectric response-ability and the surface hydrophobicity (the apparent contact angle of water can reach 135°). Finally, we demonstrate that the obtained carbon heterostructure maintains its wideband EM absorption with an effective absorption frequency ranging from 12.5 to 16.7 GHz under conditions that simulate the real-world environment, including exposure to rainwater with slightly acidic/alkaline pH values. Overall, the advances reported in this work provide new design principles for the synthesis of high-performance EM absorbers that can find practical applications in real-world environments.
Collapse
Affiliation(s)
- Zhichao Lou
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Qiuyi Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Ufuoma I Kara
- Willian G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Rajdeep S Mamtani
- Willian G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, 43210, USA
| | - Xiaodi Zhou
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Huiyang Bian
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, People's Republic of China
| | - Zhihong Yang
- Institute of Materials Research and Engineering, Agency for Sciences, Technology and Research, Singapore, Singapore
| | - Yanjun Li
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, 210037, People's Republic of China.
| | - Hualiang Lv
- Willian G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, 43210, USA.
| | - Solomon Adera
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA.
| | - Xiaoguang Wang
- Willian G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, 43210, USA.
- Sustainability Institute, The Ohio State University, Columbus, OH, 43210, USA.
| |
Collapse
|
42
|
Zhao Y, Hao L, Zhang X, Tan S, Li H, Zheng J, Ji G. A Novel Strategy in Electromagnetic Wave Absorbing and Shielding Materials Design: Multi‐Responsive Field Effect. SMALL SCIENCE 2021. [DOI: 10.1002/smsc.202100077] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Affiliation(s)
- Yue Zhao
- College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing 211100 P. R. China
| | - Lele Hao
- College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing 211100 P. R. China
| | - Xindan Zhang
- College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing 211100 P. R. China
| | - Shujuan Tan
- College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing 211100 P. R. China
| | - Haohang Li
- College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing 211100 P. R. China
| | - Jing Zheng
- Department of Chemistry and Materials Science College of Science Nanjing Forestry University Nanjing 210037 P. R. China
| | - Guangbin Ji
- College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing 211100 P. R. China
| |
Collapse
|
43
|
Chang CG, Yang JC, Zhang G, Long SR, Wang XJ, Yang J. Fabrication of segregated poly(arylene sulfide sulfone)/graphene nanoplate composites reinforced by polymer fibers for electromagnetic interference shielding. NANO MATERIALS SCIENCE 2021. [DOI: 10.1016/j.nanoms.2021.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
44
|
Sharma D, Satapathy BK. Polymer Substrate-Based Transition Metal Modified Electrospun Nanofibrous Materials: Current Trends in Functional Applications and Challenges. POLYM REV 2021. [DOI: 10.1080/15583724.2021.1972006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Deepika Sharma
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
| | - Bhabani K. Satapathy
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, India
| |
Collapse
|
45
|
Fang YS, Cao WQ, Chen YB, Sun XD, Cao MS. Ti 3C 2T xnanohybrids: tunable local conductive network and efficient EMI shielding performance for multifunctional materials and devices. NANOTECHNOLOGY 2021; 32:442002. [PMID: 34320474 DOI: 10.1088/1361-6528/ac18a0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 07/27/2021] [Indexed: 06/13/2023]
Abstract
Ti3C2Txis an important member of the MXenes family. Due to its excellent electrical conductivity, adjustable atomic layer, and modifiable active surface, Ti3C2Txhas attracted great attention in the field of electromagnetic interference (EMI) shielding. This paper introduces the important role of regulating conductive network to improve the EMI shielding performance of materials and summarizes the EMI shielding performance of Ti3C2Txnanohybrids reported in recent years. In addition, Ti3C2Txbased EMI shielding materials towards multifunctional devices are also systematically introduced. After that, the development status of Ti3C2Txnanohybrids in the field of EMI shielding is objectively described, and the main problems and challenges are evaluated. Finally, the prospect of Ti3C2Txnanohybrids for advanced and green EMI shielding materials is forecasted.
Collapse
Affiliation(s)
- Yong-Sheng Fang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Wen-Qiang Cao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Yu-Bin Chen
- Beijing Institute of Aeronautical Materials, Beijing 100095, People's Republic of China
| | - Xiao-Di Sun
- Department of Oral Implantology, Tianjin Stomatological Hospital, Hospital of Stomatology, Nankai University, Tianjin 300041, People's Republic of China
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, People's Republic of China
| | - Mao-Sheng Cao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| |
Collapse
|
46
|
Tian W, Li J, Liu Y, Ali R, Guo Y, Deng L, Mahmood N, Jian X. Atomic-Scale Layer-by-Layer Deposition of FeSiAl@ZnO@Al 2O 3 Hybrid with Threshold Anti-Corrosion and Ultra-High Microwave Absorption Properties in Low-Frequency Bands. NANO-MICRO LETTERS 2021; 13:161. [PMID: 34328577 PMCID: PMC8324648 DOI: 10.1007/s40820-021-00678-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 06/07/2021] [Indexed: 05/23/2023]
Abstract
Developing highly efficient magnetic microwave absorbers (MAs) is crucial, and yet challenging for anti-corrosion properties in extremely humid and salt-induced foggy environments. Herein, a dual-oxide shell of ZnO/Al2O3 as a robust barrier to FeSiAl core is introduced to mitigate corrosion resistance. The FeSiAl@ZnO@Al2O3 layer by layer hybrid structure is realized with atomic-scale precision through the atomic layer deposition technique. Owing to the unique hybrid structure, the FeSiAl@ZnO@Al2O3 exhibits record-high microwave absorbing performance in low-frequency bands covering L and S bands with a minimum reflection loss (RLmin) of -50.6 dB at 3.4 GHz. Compared with pure FeSiAl (RLmin of -13.5 dB, a bandwidth of 0.5 GHz), the RLmin value and effective bandwidth of this designed novel absorber increased up to ~ 3.7 and ~ 3 times, respectively. Furthermore, the inert ceramic dual-shells have improved 9.0 times the anti-corrosion property of FeSiAl core by multistage barriers towards corrosive medium and obstruction of the electric circuit. This is attributed to the large charge transfer resistance, increased impedance modulus |Z|0.01 Hz, and frequency time constant of FeSiAl@ZnO@Al2O3. The research demonstrates a promising platform toward the design of next-generation MAs with improved anti-corrosion properties.
Collapse
Affiliation(s)
- Wei Tian
- National Engineering Researching Centre of Electromagnetic Radiation Control Materials, Key Laboratory of Multi-Spectral Absorbing Materials and Structures of Ministry of Education, State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
- School of Electronic Science and Engineering, The Yangtze Delta Region Institute (Huzhou, University of Electronic Science and Technology of China, Huzhou, 313001, People's Republic of China
| | - Jinyao Li
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
| | - Yifan Liu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
| | - Rashad Ali
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China
| | - Yang Guo
- School of Electrical and Information Engineering, Panzhihua University, Panzhihua, 617000, People's Republic of China
| | - Longjiang Deng
- National Engineering Researching Centre of Electromagnetic Radiation Control Materials, Key Laboratory of Multi-Spectral Absorbing Materials and Structures of Ministry of Education, State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China.
| | - Nasir Mahmood
- School of Engineering, RMIT University, Melbourne, Victoria, 3001, Australia.
| | - Xian Jian
- National Engineering Researching Centre of Electromagnetic Radiation Control Materials, Key Laboratory of Multi-Spectral Absorbing Materials and Structures of Ministry of Education, State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China.
- School of Electronic Science and Engineering, The Yangtze Delta Region Institute (Huzhou, University of Electronic Science and Technology of China, Huzhou, 313001, People's Republic of China.
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, People's Republic of China.
| |
Collapse
|
47
|
Negi P, Kumar A. MoS 2 nanoparticle/activated carbon composite as a dual-band material for absorbing microwaves. NANOSCALE ADVANCES 2021; 3:4196-4206. [PMID: 36132829 PMCID: PMC9418388 DOI: 10.1039/d1na00292a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 05/23/2021] [Indexed: 06/16/2023]
Abstract
In the search for novel high-performance microwave (MW) absorbers, MoS2 has shown promise as a MW-absorbing material, but its poor impedance matching limits its applications. Herein, a facile hydrothermal method was used to produce a composite consisting of activated carbon (AC) derived from waste biomass and in situ-grown MoS2 nanoparticles. Its microwave absorption properties were examined in the 2-18 GHz frequency range, and FESEM and HRTEM images confirmed the formation of MoS2 nanoparticles on the AC. The maximum reflection loss (RLmax) for the MoS2/AC composite was -31.8 dB (@16.72 GHz) at 20 wt% filler loading. At 50 wt% filler loading, the MoS2/AC (MAC50) composite exhibited unique dual-band absorption characteristics in the C and Ku bands. An effective absorption bandwidth (RL < -10 dB) of 10.4 GHz (3-5.2 GHz, 9.8-18 GHz) was achieved at various thicknesses that covered the entire Ku band. Therefore, a sole dielectric absorber can easily be tuned to absorb MWs at multiple frequency ranges. The large surface area and conduction losses of AC combined with the superior dielectric loss properties of MoS2 resulted in improved impedance matching and attenuation ability of the MoS2/AC composite. Thus, MoS2/AC is a promising low-cost dielectric absorber for MW absorption applications.
Collapse
Affiliation(s)
- Praveen Negi
- Department of Physics, National Institute of Technology Kurukshetra Haryana 136119 India
| | - Ashavani Kumar
- Department of Physics, National Institute of Technology Kurukshetra Haryana 136119 India
| |
Collapse
|
48
|
Xiang Z, Shi Y, Zhu X, Cai L, Lu W. Flexible and Waterproof 2D/1D/0D Construction of MXene-Based Nanocomposites for Electromagnetic Wave Absorption, EMI Shielding, and Photothermal Conversion. NANO-MICRO LETTERS 2021; 13:150. [PMID: 34170409 PMCID: PMC8233447 DOI: 10.1007/s40820-021-00673-9] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 05/31/2021] [Indexed: 05/11/2023]
Abstract
ABSTRACT High-performance electromagnetic wave absorption and electromagnetic interference (EMI) shielding materials with multifunctional characters have attracted extensive scientific and technological interest, but they remain a huge challenge. Here, we reported an electrostatic assembly approach for fabricating 2D/1D/0D construction of Ti3C2Tx/carbon nanotubes/Co nanoparticles (Ti3C2Tx/CNTs/Co) nanocomposites with an excellent electromagnetic wave absorption, EMI shielding efficiency, flexibility, hydrophobicity, and photothermal conversion performance. As expected, a strong reflection loss of -85.8 dB and an ultrathin thickness of 1.4 mm were achieved. Meanwhile, the high EMI shielding efficiency reached 110.1 dB. The excellent electromagnetic wave absorption and shielding performances were originated from the charge carriers, electric/magnetic dipole polarization, interfacial polarization, natural resonance, and multiple internal reflections. Moreover, a thin layer of polydimethylsiloxane rendered the hydrophilic hierarchical Ti3C2Tx/CNTs/Co hydrophobic, which can prevent the degradation/oxidation of the MXene in high humidity condition. Interestingly, the Ti3C2Tx/CNTs/Co film exhibited a remarkable photothermal conversion performance with high thermal cycle stability and tenability. Thus, the multifunctional Ti3C2Tx/CNTs/Co nanocomposites possessing a unique blend of outstanding electromagnetic wave absorption and EMI shielding, light-driven heating performance, and flexible water-resistant features were highly promising for the next-generation intelligent electromagnetic attenuation system. [Image: see text] HIGHLIGHTS The 2D/1D/0D Ti3C2Tx/carbon nanotubes/Co nanocomposite is successfully synthesized via an electrostatic assembly. Nanocomposites exhibit an excellent electromagnetic wave absorption and a remarkable electromagnetic interference shielding efficiency. The flexible, waterproof, and photothermal conversion performances are achieved. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s40820-021-00673-9.
Collapse
Affiliation(s)
- Zhen Xiang
- Shanghai Key Lab of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China
| | - Yuyang Shi
- Shanghai Key Lab of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China
| | - Xiaojie Zhu
- Shanghai Key Lab of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China
| | - Lei Cai
- Shanghai Key Lab of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China
| | - Wei Lu
- Shanghai Key Lab of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China.
| |
Collapse
|
49
|
Zhao Y, Zuo X, Guo Y, Huang H, Zhang H, Wang T, Wen N, Chen H, Cong T, Muhammad J, Yang X, Wang X, Fan Z, Pan L. Structural Engineering of Hierarchical Aerogels Comprised of Multi-dimensional Gradient Carbon Nanoarchitectures for Highly Efficient Microwave Absorption. NANO-MICRO LETTERS 2021; 13:144. [PMID: 34138390 PMCID: PMC8206232 DOI: 10.1007/s40820-021-00667-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 05/20/2021] [Indexed: 05/19/2023]
Abstract
Recently, multilevel structural carbon aerogels are deemed as attractive candidates for microwave absorbing materials. Nevertheless, excessive stack and agglomeration for low-dimension carbon nanomaterials inducing impedance mismatch are significant challenges. Herein, the delicate "3D helix-2D sheet-1D fiber-0D dot" hierarchical aerogels have been successfully synthesized, for the first time, by sequential processes of hydrothermal self-assembly and in-situ chemical vapor deposition method. Particularly, the graphene sheets are uniformly intercalated by 3D helical carbon nanocoils, which give a feasible solution to the mentioned problem and endows the as-obtained aerogel with abundant porous structures and better dielectric properties. Moreover, by adjusting the content of 0D core-shell structured particles and the parameters for growth of the 1D carbon nanofibers, tunable electromagnetic properties and excellent impedance matching are achieved, which plays a vital role in the microwave absorption performance. As expected, the optimized aerogels harvest excellent performance, including broad effective bandwidth and strong reflection loss at low filling ratio and thin thickness. This work gives valuable guidance and inspiration for the design of hierarchical materials comprised of dimensional gradient structures, which holds great application potential for electromagnetic wave attenuation.
Collapse
Affiliation(s)
- Yongpeng Zhao
- School of Physics, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China
- School of Microelectronics, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China
| | - Xueqing Zuo
- School of Physics, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China
| | - Yuan Guo
- School of Physics, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China
| | - Hui Huang
- School of Physics, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China
| | - Hao Zhang
- School of Physics, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China
| | - Ting Wang
- School of Physics, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China
| | - Ningxuan Wen
- School of Physics, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China
| | - Huan Chen
- School of Physics, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China
- School of Microelectronics, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China
| | - Tianze Cong
- School of Physics, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China
| | - Javid Muhammad
- School of Physics, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China
| | - Xuan Yang
- School of Materials Science and Engineering, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China
| | - Xinnan Wang
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China
| | - Zeng Fan
- School of Physics, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China.
| | - Lujun Pan
- School of Physics, Dalian University of Technology, Dalian, 116024, Liaoning, People's Republic of China.
| |
Collapse
|
50
|
Liu J, Wang M, Zhang L, Zang D, Liu H, Francesca Liotta L, Wu H. Tunable sulfur vacancies and hetero-interfaces of FeS2-based composites for high-efficiency electromagnetic wave absorption. J Colloid Interface Sci 2021; 591:148-160. [DOI: 10.1016/j.jcis.2021.01.110] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 01/29/2021] [Accepted: 01/30/2021] [Indexed: 12/17/2022]
|