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Wang S, Hao X, Liu Y, Cheng Z, Chen S, Peng G, Tao J, Yao J, Yang F, Zhou J. Intelligent Tunable Wave-Absorbing CNTs/VO 2/ANF Composite Aerogels Based on Temperature-Driving. ACS APPLIED MATERIALS & INTERFACES 2024; 16:32773-32783. [PMID: 38865582 DOI: 10.1021/acsami.4c06980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
The development of new electromagnetic absorbing materials is the main strategy to address electromagnetic radiation. Once traditional electromagnetic wave-absorbing materials are prepared, it is difficult to dynamically change their electromagnetic wave-absorbing performance. Facing the complexity of the information age and the rapid development of modern radar, it is significant to develop intelligent modulation of electromagnetic wave-absorbing materials. Here, CNTs/VO2/ANF composite aerogels with dynamic frequency tunability and switchable absorption on/off were synthesized. Based on the phase change behavior of VO2, the degree of polarization and interfacial effects of multiple heterogeneous interfaces between VO2 and CNTs and aramid nanofibers (ANFs) were modulated at different temperatures. With the increase in temperature (from 25 to 200 °C), the maximum absorption frequency of the frequency tunable aerogel is modulated from 12.24 to 8.56 GHz in the X-band, and the absorption intensity remains stable. The maximum effective switching bandwidth (ΔEAB) of the wave-absorbing switchable aerogel is 3.70 GHz. This study provides insights into intelligent electromagnetic wave absorption performance and paves the way for temperature-driven application of intelligent modulation of electromagnetic absorbers.
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Affiliation(s)
- Shunan Wang
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, Jiangsu 210016, China
| | - Xiuqing Hao
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, Jiangsu 210016, China
| | - Yijie Liu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China
- Key Laboratory of Material Preparation and Protection for Harsh Environment(Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing 211100, China
| | - Zhenyu Cheng
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China
- Key Laboratory of Material Preparation and Protection for Harsh Environment(Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing 211100, China
| | - Simin Chen
- College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, Jiangsu 210016, China
| | - Guiyu Peng
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China
- Key Laboratory of Material Preparation and Protection for Harsh Environment(Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing 211100, China
| | - Jiaqi Tao
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China
- Key Laboratory of Material Preparation and Protection for Harsh Environment(Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing 211100, China
| | - Junru Yao
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China
- Key Laboratory of Material Preparation and Protection for Harsh Environment(Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing 211100, China
| | - Feng Yang
- School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Jintang Zhou
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China
- Key Laboratory of Material Preparation and Protection for Harsh Environment(Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing 211100, China
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Li C, Li D, Zhang S, Ma L, Zhang L, Zhang J, Gong C. Interface Engineering of Titanium Nitride Nanotube Composites for Excellent Microwave Absorption at Elevated Temperature. NANO-MICRO LETTERS 2024; 16:168. [PMID: 38573346 PMCID: PMC10994892 DOI: 10.1007/s40820-024-01381-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 02/17/2024] [Indexed: 04/05/2024]
Abstract
Currently, the microwave absorbers usually suffer dreadful electromagnetic wave absorption (EMWA) performance damping at elevated temperature due to impedance mismatching induced by increased conduction loss. Consequently, the development of high-performance EMWA materials with good impedance matching and strong loss ability in wide temperature spectrum has emerged as a top priority. Herein, due to the high melting point, good electrical conductivity, excellent environmental stability, EM coupling effect, and abundant interfaces of titanium nitride (TiN) nanotubes, they were designed based on the controlling kinetic diffusion procedure and Ostwald ripening process. Benefiting from boosted heterogeneous interfaces between TiN nanotubes and polydimethylsiloxane (PDMS), enhanced polarization loss relaxations were created, which could not only improve the depletion efficiency of EMWA, but also contribute to the optimized impedance matching at elevated temperature. Therefore, the TiN nanotubes/PDMS composite showed excellent EMWA performances at varied temperature (298-573 K), while achieved an effective absorption bandwidth (EAB) value of 3.23 GHz and a minimum reflection loss (RLmin) value of - 44.15 dB at 423 K. This study not only clarifies the relationship between dielectric loss capacity (conduction loss and polarization loss) and temperature, but also breaks new ground for EM absorbers in wide temperature spectrum based on interface engineering.
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Affiliation(s)
- Cuiping Li
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, 475004, People's Republic of China
- National and Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng, 475004, People's Republic of China
| | - Dan Li
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, 475004, People's Republic of China
- National and Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng, 475004, People's Republic of China
| | - Shuai Zhang
- National and Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng, 475004, People's Republic of China
| | - Long Ma
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, 475004, People's Republic of China
- National and Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng, 475004, People's Republic of China
| | - Lei Zhang
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, 475004, People's Republic of China.
| | - Jingwei Zhang
- National and Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng, 475004, People's Republic of China
| | - Chunhong Gong
- College of Chemistry and Molecular Sciences, Henan University, Kaifeng, 475004, People's Republic of China.
- National and Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng, 475004, People's Republic of China.
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Xie H, Li J, Yang R, Yang J, Wang T, Wang Q. Controllable fabrication of CoNi bimetallic alloy for high-performance electromagnetic wave absorption. RSC Adv 2024; 14:9791-9797. [PMID: 38528925 PMCID: PMC10961963 DOI: 10.1039/d3ra08896k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 03/14/2024] [Indexed: 03/27/2024] Open
Abstract
With the coming era of artificial intelligence (AI) dominated by high-tech electronics, developing high-performance microwave absorption materials (MAMs) is imperative to solve the problem of increasing electromagnetic inference and pollution. Herein, a metal-organic framework (MOF)-derived CoNi bimetallic alloy (CoNi/C) with an irregular rod-like structure is prepared by a thermal reduction method. Introducing the CoNi alloy facilitates the balance between conduction loss and polarization loss and forms good impedance matching, leading to excellent microwave absorption performance. Interestingly, the optimization of absorption performance can be further achieved by controllably modulating the molar ratio of Co and Ni (Co2+/Ni2+). As expected, the obtained CoNi/C delivers excellent microwave absorption performance with a minimum reflection loss (RLmin) of -50.80 dB at 10.40 GHz and an effective absorption bandwidth (EAB) of 3.28 GHz (8.91-12.19 GHz) with a filler loading of 50 wt% at 2.0 mm. In addition, the CoNi/C can reach a maximum EAB of 4.77 GHz (12.99-17.76 GHz) at a low thickness of 1.5 mm, spanning nearly the entire Ku band. The CoNi3/C also exhibits an impressive RLmin of -44.84 dB at 3.28 GHz in the S band. This work offers a novel strategy to modulate the magnetic/electric properties of MOF-derived MAMs.
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Affiliation(s)
- Hai Xie
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences Beijing 100049 China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Jinmei Li
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Rui Yang
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Juan Yang
- Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Tingmei Wang
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences Beijing 100049 China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Qihua Wang
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences Beijing 100049 China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
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Wang S, Liu Q, Li S, Huang F, Zhang H. Entropy engineering enhances the electromagnetic wave absorption of high-entropy transition metal dichalcogenides/N-doped carbon nanofiber composites. MATERIALS HORIZONS 2024; 11:1088-1097. [PMID: 38105730 DOI: 10.1039/d3mh01625k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Entropy engineering strategies provide a broader platform for exploring the behavior of electromagnetic wave (EMW) absorption materials and their absorption mechanisms on the microscopic scale. In this work, a novel entropy engineering strategy was developed to improve the EMW absorption properties of MoS2. A hierarchical N-doped carbon nanofiber/MoS2 (NCNF/MS) composite was synthesized using the electrospinning and hydrothermal methods. Then, the conformational entropy of MoS2 was increased by sequentially integrating elements such as W, Se, and Te. Although MoS2 maintains a single 2H-phase structure throughout the entropy increase process, it triggers a series of complex changes at the microscopic level, including lattice distortion, ingenious electronic structure adjustments, and an increase in defect density. These changes provide more possibilities for the EMW interaction with the absorber, which significantly enhances the dielectric behavior of the composites, including conduction and polarization losses. Owing to the unique hierarchical structure and rich defect structure, the obtained entropy-increased NCNF/MWSST exhibits excellent EMW absorption performance. The minimum reflection loss reaches -60.7 dB, and the maximum effective absorption bandwidth is 6.48 GHz, which is improved by almost 584% and 810% compared to NCNF/MS. This study provides a new way to design efficient and high-performance MoS2-based absorbers and provides valuable insights for exploring the entropy-increasing strategies to optimize the EMW absorption properties.
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Affiliation(s)
- Shipeng Wang
- Anhui Key Laboratory of Magnetic Functional Materials and Devices, School of Materials Science and Engineering, Anhui University, Hefei, 230601, P. R. China
| | - Qiangchun Liu
- School of Physics and Electronic Information, Huaibei Normal University, Huaibei 235000, China
| | - Shikuo Li
- Anhui Key Laboratory of Magnetic Functional Materials and Devices, School of Materials Science and Engineering, Anhui University, Hefei, 230601, P. R. China
| | - Fangzhi Huang
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, 230601, PR China.
| | - Hui Zhang
- Anhui Key Laboratory of Magnetic Functional Materials and Devices, School of Materials Science and Engineering, Anhui University, Hefei, 230601, P. R. China
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Li N, Shi JF, Zhang F, Jia LC, Wang YY, Yan DX, Li ZM. Peelable Microwave Absorption Coating with Reusable and Anticorrosion Merits. ACS APPLIED MATERIALS & INTERFACES 2024; 16:6462-6473. [PMID: 38266189 DOI: 10.1021/acsami.3c17805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
The peelable microwave absorption (MA) coating with reversible adhesion for stable presence on substrates and easy release without any residuals is highly desired in temporary electromagnetic protection, which can quickly enter and disengage the electromagnetic protection state according to the real-time changeable harsh surroundings. On the contrary, with the incorporation of abundant absorbent to achieve excellent MA ability, the tunable adhesion and sufficient cohesion are extremely challenging to fulfill the above requirement. The reported peelable coatings still have problems in controlling adhesion/cohesion strength and coating release, facing substantial residuals after peeling even using complex chemical modification or abundant additives. Herein, a peelable MA coating based on the block characteristics of polar and nonpolar segments of poly(styrene-(ethylene-co-butylene)-styrene) (SEBS) is successfully developed. The polyaniline-decorated carbon nanotube as a microwave absorber plays a positive influence on the adhesion/cohesion of the coating due to bonding interaction. The competitive effective absorption bandwidth (EAB) of 8.8 GHz and controllable yet reversible adhesion release on various substrates and complex surfaces have been achieved. The reusability endows peelable MA coating with 93% retention of EAB even after ten coating-peeling cycles. The coating with excellent chemical and adhesion stability can effectively protect substrates from salt/acid/alkali corrosion, showing over 98% retention of EAB even after 8 h of accelerated corrosion. Our peelable MA coating via a general yet reliable approach provides a prospect for temporary electromagnetic protection.
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Affiliation(s)
- Nan Li
- School of Aeronautics and Astronautics, Robotic Satellite Key Laboratory of Sichuan Province, Sichuan University, Chengdu 610065, China
| | - Jun-Feng Shi
- School of Aeronautics and Astronautics, Robotic Satellite Key Laboratory of Sichuan Province, Sichuan University, Chengdu 610065, China
| | - Feng Zhang
- School of Aeronautics and Astronautics, Robotic Satellite Key Laboratory of Sichuan Province, Sichuan University, Chengdu 610065, China
| | - Li-Chuan Jia
- College of Electrical Engineering, Sichuan University, Chengdu 610065, China
| | - Yue-Yi Wang
- School of Aeronautics and Astronautics, Robotic Satellite Key Laboratory of Sichuan Province, Sichuan University, Chengdu 610065, China
| | - Ding-Xiang Yan
- School of Aeronautics and Astronautics, Robotic Satellite Key Laboratory of Sichuan Province, Sichuan University, Chengdu 610065, China
- State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 10029, China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
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Sun X, Li Y, Li X, Chen P, Zhu Y. Rational Design of a Core-Shelled Ti 3AlC 2@La 2Zr 2O 7 Composite for High-Temperature Broadband Microwave Absorption. ACS APPLIED MATERIALS & INTERFACES 2023; 15:59895-59904. [PMID: 38102992 DOI: 10.1021/acsami.3c12098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
Microwave-absorbing materials adapting to high temperatures and harsh environments are in great demand. Herein, a core-shelled Ti3AlC2@La2Zr2O7 (TAC@LZO) composite was designed and fabricated by encapsulating the La2Zr2O7 (LZO) thermal insulation ceramic on the surface of highly conductive Ti3AlC2 (TAC) via chemical coprecipitation and subsequent heat treatment. The continuous LZO ceramic coating on the surface improved the oxidation resistance of the composite at 600 °C and modulated its dielectric properties. The TAC@LZO composite exhibited an excellent microwave absorption performance within the temperature range of 25-600 °C, minimum reflection loss (RLmin) < -55 dB, and effective absorption bandwidth (EAB, RL < -10 dB) of 4 GHz. This work presents an effective approach for developing stable high-temperature microwave absorbers from thermal insulation ceramics.
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Affiliation(s)
- Xinyu Sun
- The State Key Laboratory of Refractories and Metallurgy, Wuhan 430081, China
- Key Laboratory of High Temperature Electromagnetic Materials and Structure of MOE, Wuhan University of Science and Technology, Wuhan 430081, P.R. China
| | - Yaxiong Li
- The State Key Laboratory of Refractories and Metallurgy, Wuhan 430081, China
- Key Laboratory of High Temperature Electromagnetic Materials and Structure of MOE, Wuhan University of Science and Technology, Wuhan 430081, P.R. China
| | - Xiangcheng Li
- The State Key Laboratory of Refractories and Metallurgy, Wuhan 430081, China
- Key Laboratory of High Temperature Electromagnetic Materials and Structure of MOE, Wuhan University of Science and Technology, Wuhan 430081, P.R. China
| | - Pingan Chen
- The State Key Laboratory of Refractories and Metallurgy, Wuhan 430081, China
- Key Laboratory of High Temperature Electromagnetic Materials and Structure of MOE, Wuhan University of Science and Technology, Wuhan 430081, P.R. China
| | - Yingli Zhu
- The State Key Laboratory of Refractories and Metallurgy, Wuhan 430081, China
- Key Laboratory of High Temperature Electromagnetic Materials and Structure of MOE, Wuhan University of Science and Technology, Wuhan 430081, P.R. China
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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.
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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
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Zheng H, Nan K, Lu Z, Wang N, Wang Y. Core-shell FeCo@carbon nanocages encapsulated in biomass-derived carbon aerogel: Architecture design and interface engineering of lightweight, anti-corrosion and superior microwave absorption. J Colloid Interface Sci 2023; 646:555-566. [PMID: 37210903 DOI: 10.1016/j.jcis.2023.05.076] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/12/2023] [Accepted: 05/12/2023] [Indexed: 05/23/2023]
Abstract
The development of multifunctional microwave absorbing materials for practical applications in complex environments is a challenging research hotspot. Herein, the core-shell structure FeCo@C nanocages were successfully anchored on the surface of biomass-derived carbon (BDC) from pleurotus eryngii (PE) via freeze-drying and electrostatic self-assembly process, achieving lightweight, anti-corrosive, and excellent absorption properties. The superior versatility benefits from the large specific surface area, high conductivity, three-dimensional cross-linked networks, and appropriate impedance matching characteristics. The as-prepared aerogel realizes a minimum reflection loss (RLmin) of -69.5 dB with a corresponding effective absorption bandwidth (EAB) of 8.6 GHz at 2.9 mm. Simultaneously, the computer simulation technique (CST) further proves that the multifunctional material can dissipate microwave energy in actual applications. More importantly, the special heterostructure of aerogel endows excellent resistance to acid, alkali, salt medium, allowing potential applications of the microwave absorbing materials under complex environmental conditions.
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Affiliation(s)
- Hao Zheng
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China
| | - Kai Nan
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710054, China.
| | - Zhao Lu
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China
| | - Nian Wang
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China
| | - Yan Wang
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China.
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Zhang Y, Dai F, Hassan A, Refaai MRA, Salman S, Nag K, Mahariq I, Qi Y. Investigations of microwave absorption performance of bi-layer absorber composed of FeWO 4 & BiVO 4 nanocomposite powder in 2-18 GHz. J Colloid Interface Sci 2023; 641:1-14. [PMID: 36924539 DOI: 10.1016/j.jcis.2023.03.029] [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: 01/06/2023] [Revised: 02/26/2023] [Accepted: 03/03/2023] [Indexed: 03/17/2023]
Abstract
Optimization necessitates every feature to be scrutinized associated with enhancement for microwave absorption. So, interplay between simulation and experiment is a significant aspect to find optimal findings in this regard. Herein, microwave absorption characteristics of as-prepared FeWO4 and BiVO4 nanomaterials were investigated by preparing mono layer and bilayer samples. For the bilayer samples, simulation technique was used to regulate microwave absorption efficiency. Using simulation technique, bilayer sample has achieved a minimum reflection loss (RLmin) of -42 dB with BiVO4 as a top layer (0.6 mm thickness) and FeWO4 as a bottom layer (0.8 mm thickness) with effective absorption Bandwidth (EAB) of 13 GHz (15-2 GHz) at 8.2 GHz frequency. The results show that the layered architecture of the absorbent is substantially responsible for its remarkable microwave absorption efficiency. Simulated results of the bilayer sample were also verified with experimental findings. This work provides a facile synthesis route, novel insights into the design of bilayer absorbent as well as simulation and experimental support for high-performance microwave bilayer absorber.
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Affiliation(s)
- Yang Zhang
- Mechanical and Electrical Engineering College, Gansu Agricultural University, Lanzhou 730070, China
| | - Fei Dai
- Mechanical and Electrical Engineering College, Gansu Agricultural University, Lanzhou 730070, China.
| | - Ali Hassan
- Institute of Physics, Czech Academy of Sciences, Cukrovarnická 10, 162 00 Prague, Czech Republic.
| | - Mohamad Reda A Refaai
- Department of Mechanical Engineering, College of Engineering in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Sadeq Salman
- Research Center, Al-Ayen University, Nasiriyah, Iraq
| | - Kaushik Nag
- College of Engineering and Technology, American University of the Middle East, Kuwait
| | - Ibrahim Mahariq
- College of Engineering and Technology, American University of the Middle East, Kuwait
| | - Yuan Qi
- Mechanical and Electrical Engineering College, Gansu Agricultural University, Lanzhou 730070, China
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Zhao T, Jia Z, Zhang Y, Wu G. Multiphase Molybdenum Carbide Doped Carbon Hollow Sphere Engineering: The Superiority of Unique Double-Shell Structure in Microwave Absorption. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206323. [PMID: 36436944 DOI: 10.1002/smll.202206323] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/09/2022] [Indexed: 06/16/2023]
Abstract
In order to achieve excellent electromagnetic wave (EMW) absorption properties, the microstructure design and component control of the absorber are critical. In this study, three different structures made of Mo2 C/C hollow spheres are prepared and their microwave absorption behavior is investigated. The Mo2 C/C double-shell hollow spheres consisting of an outer thin shell and an inner rough thick shell with multiple EMW loss mechanisms exhibit good microwave absorption properties. In order to further improve the microwave absorption properties, MoC1-x /C double-shell hollow spheres with different crystalline phases of molybdenum carbide are prepared to further optimize the EMW loss capability of the materials. Finally, MoC1-x /C double-shell hollow spheres with α-phase molybdenum carbide have the best microwave absorption properties. When the filling is 20 wt.%, the minimum reflection loss at 1.8 mm is -50.55 dB and the effective absorption bandwidth at 2 mm is 5.36 GHz, which is expected to be a microwave absorber with the characteristics of "thin, light, wide, and strong".
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Affiliation(s)
- Tianbao 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, P. R. China
| | - Zirui Jia
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, Shandong, 266071, P. R. China
- Weihai Innovation Institute, Qingdao University, Shandong, 264200, China
| | - Yan Zhang
- 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, P. R. 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, P. R. China
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11
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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.
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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
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12
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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: 29] [Impact Index Per Article: 14.5] [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.
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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.
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13
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Kavitha N, Chandramohan A, Sharma D, Dinakaran K. Synthesis and microwave absorption studies on 2D graphitic carbon nitride loaded polyaniline/polyvinyl alcohol nanocomposites. HIGH PERFORM POLYM 2022. [DOI: 10.1177/09540083221134955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A light weight electromagnetic interference (EMI) shielding and microwave absorbing composite films has been developed by loading varying weight content of graphitic carbon nitride (g-C3N4) nanosheets and polyaniline (PANI) into polyvinyl alcohol (PVA) matrix. The prepared PVA/PANI/g-C3N4 (1%, 3%, 5%) composites has been subjected to FTIR, X-Ray powder diffraction, SEM, Thermal studies, Dielectric studies and electromagnetic shielding effectiveness (EMI SE) analysis. The PVA/PANI/g-C3N4 (1%, 3%, 5%) composites was discovered to have improved electrical conductivity, dielectric loss, and dielectric constant. It is observed from the SEM images that the sheet layers of g-C3N4 are wrapped by the polymer matrix and the morphology to PVA/PANI composite in the g-C3N4 indicates homogeneous blending of PVA/PANI without any phase separation and has porous in it. The PANI/g-C3N4 fractured surfaces present are smooth but irregular in appearance indicating good compatibility between the PVA and PANI matrices. The dielectric properties was found to increase on increasing the concentration of the g-C3N4 nanofiller and reached a maximum of 9.8 × 106 at 1 MHz for 3% g-C3N4 in PVA/PANI. The incorporation of g-C3N4 into PVA/PANI enhanced the conductivity and the 5% g-C3N4 loaded composite film exhibited a conductivity value of 0.043 S/cm at 1 MHz. The PVA/PANI/g-C3N4 (1%, 3%, 5%) composites exhibited potential EMI SE values ranging from 24 to 35 dB at 8.6 GHz and from 42 to 63 dB at 12.4 GHz, for instance the PVA/PANI/g-C3N4 5% composite showed highest value of 63 dB at 12.4 GHz. The PVA/PANI/g-C3N4 5% exhibits the maximum highest reflection loss 8 GHz–12 GHz in which the higher absorption of −36 dB is observed at 10.3 GHz of the X-band region.
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Affiliation(s)
| | - Ayyavu Chandramohan
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, India
| | - Devansh Sharma
- Department of Materials Engineering, Indian Institute of Science, Bangalore, Karnataka, India
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14
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Regulated dielectric loss based on core-sheath carbon-carbon hierarchical nanofibers toward the high-performance microwave absorption. J Colloid Interface Sci 2022; 624:619-628. [PMID: 35690014 DOI: 10.1016/j.jcis.2022.05.165] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 05/24/2022] [Accepted: 05/28/2022] [Indexed: 11/23/2022]
Abstract
As a response to stealth technology and electromagnetic pollution, microwave absorbing materials have attracted the attention of many research scholars. However, achieving effective absorption with a low filling level is still a challenge in the harsh environment. Here, an emerging carbon-carbon composite fiber with a core-sheath structure is cleverly tailored for high-performance microwave absorber by tuning the dielectric loss. Reasonable engineering heterogeneous interfaces and conductive paths give rise to a synergistic effect of the impedance matching, conductive loss, polarization loss and multiple scattering. The obtained CR-800 achieves the maximum reflection loss of -51.91 dB, effective absorbing bandwidth of 4.82 GHz, and radar cross section (RCS) reduction value of 41.5 dBm2. Furthermore, the composites own superior environmental adaptation with stable absorbing properties in the harsh environment benefited from great environmental resistance of carbon materials. Given this, the core-sheath carbon-carbon composite fibers are expected to be a candidate for radar stealth technology and electromagnetic pollution.
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15
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Development of wrinkled reduced graphene oxide wrapped polymer-derived carbon microspheres as viable microwave absorbents via a charge-driven self-assembly strategy. J Colloid Interface Sci 2022; 630:34-45. [DOI: 10.1016/j.jcis.2022.09.144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/22/2022] [Accepted: 09/28/2022] [Indexed: 11/23/2022]
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16
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Chen X, Hong R, Chen H. Fabrication of PTCA-PANI composites for electromagnetic wave absorption and corrosion protection. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128809] [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]
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17
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Jiao Z, Huyan W, Yang F, Yao J, Tan R, Chen P, Tao X, Yao Z, Zhou J, Liu P. Achieving Ultra-Wideband and Elevated Temperature Electromagnetic Wave Absorption via Constructing Lightweight Porous Rigid Structure. NANO-MICRO LETTERS 2022; 14:173. [PMID: 35999287 PMCID: PMC9399338 DOI: 10.1007/s40820-022-00904-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 06/22/2022] [Indexed: 05/14/2023]
Abstract
Realizing ultra-wideband absorption, desirable attenuation capability at high temperature and mechanical requirements for real-life applications remains a great challenge for microwave absorbing materials. Herein, we have constructed a porous carbon fiber/polymethacrylimide (CP) structure for acquiring promising microwave absorption performance and withstanding both elevated temperature and high strength in a low density. Given the ability of porous structure to induce desirable impedance matching and multiple reflection, the absorption bandwidth of CP composite can reach ultra-wideband absorption of 14 GHz at room temperature and even cover the whole X-band at 473 K. Additionally, the presence of imide ring group in polymethacrylimide and hard bubble wall endows the composite with excellent heat and compressive behaviors. Besides, the lightweight of the CP composite with a density of only 110 mg cm-3 coupled with high compressive strength of 1.05 MPa even at 453 K also satisfies the requirements in engineering applications. Compared with soft and compressible aerogel materials, we envision that the rigid porous foam absorbing material is particularly suitable for environmental extremes.
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Affiliation(s)
- Zibao Jiao
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211100, People's Republic of China
- Key Laboratory of Material Preparation and Protection for Harsh Environment (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing, 211100, People's Republic of China
| | - Wenjun Huyan
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211100, People's Republic of China
- Key Laboratory of Material Preparation and Protection for Harsh Environment (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing, 211100, People's Republic of China
| | - Feng Yang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211100, People's Republic of China
- Key Laboratory of Material Preparation and Protection for Harsh Environment (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing, 211100, People's Republic of China
| | - Junru Yao
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211100, People's Republic of China
- Key Laboratory of Material Preparation and Protection for Harsh Environment (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing, 211100, People's Republic of China
| | - Ruiyang Tan
- School of Electronic Science and Engineering, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Ping Chen
- School of Electronic Science and Engineering, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Xuewei Tao
- School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing, 211167, People's Republic of China
| | - Zhengjun Yao
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211100, People's Republic of China.
- Key Laboratory of Material Preparation and Protection for Harsh Environment (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing, 211100, People's Republic of China.
| | - Jintang Zhou
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211100, People's Republic of China.
- Key Laboratory of Material Preparation and Protection for Harsh Environment (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing, 211100, People's Republic of China.
| | - Peijiang Liu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 211100, People's Republic of China.
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18
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Su X, Han M, Liu Y, Wang J, Liang C, Liu Y. In-situ construction of nitrogen-doped reduced graphene oxide@carbon nanofibers towards the synergetic enhancement of their microwave absorption properties via integrating point defects and structure engineering. J Colloid Interface Sci 2022; 628:984-994. [PMID: 36037719 DOI: 10.1016/j.jcis.2022.08.094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/10/2022] [Accepted: 08/14/2022] [Indexed: 12/24/2022]
Abstract
The aim of this work is to develop materials that can absorb microwave to meet the requirements of stealth technology and solve the problem of electromagnetic pollution. However, the challenge is having materials with high-efficient absorption properties at an ultralow filling rate and visualizing the microwave response. The strategy used in this work was to integrate point defect and microstructure in preparing materials, nitrogen-doped reduced graphene oxide@ carbon nanofibers with high-efficient microwave absorption and double-layered structure. Ethylenediamine (nitrogen source), was doped into the materials, resulting in the generation of the defects. The microwave absorption performance of the materials was affected by the degree of defects due to the dipole polarization loss and conductive loss. The optimal samples gained the maximum reflection loss of -54.7 dB and effective absorption bandwidth of 4.74 GHz at a filling rate of only 8 wt%. More significantly, the microwave absorbing mechanism was analyzed visually in the response field. Furthermore, the actual stealth effects were evaluated by the radar cross section reduction, and the value was 29.2 dBm2. The experimental results illustrated that nitrogen-doped reduced graphene oxide@ carbon nanofibers may be alternative materials with high microwave absorption performance at a low filling rate.
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Affiliation(s)
- Xiaogang Su
- Key Laboratory of Functional Nanocomposites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan 030051, People's Republic of China.
| | - Mengjie Han
- Key Laboratory of Functional Nanocomposites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan 030051, People's Republic of China
| | - Yanan Liu
- Key Laboratory of Functional Nanocomposites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan 030051, People's Republic of China
| | - Jun Wang
- Key Laboratory of Functional Nanocomposites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan 030051, People's Republic of China
| | - Chaobo Liang
- Key Laboratory of Functional Nanocomposites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan 030051, People's Republic of China; China-Blarus Belt and Road Joint Laboratory on Electromagnetic Environment Effect, Taiyuan 030051, People's Republic of China
| | - Yaqing Liu
- Key Laboratory of Functional Nanocomposites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan 030051, People's Republic of China.
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19
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Accordion-like reduced graphene oxide embedded with Fe nanoparticles between layers for tunable and broadband electromagnetic wave absorption. J Colloid Interface Sci 2022; 628:1019-1030. [DOI: 10.1016/j.jcis.2022.08.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 07/30/2022] [Accepted: 08/03/2022] [Indexed: 11/23/2022]
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20
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Dai B, Ma Y, Feng S, Wang H, Ma M, Ding J, Yin X, Li T. Fabrication of one-dimensional M (Co, Ni)@polyaniline nanochains with adjustable thickness for excellent microwave absorption properties. J Colloid Interface Sci 2022; 627:113-125. [PMID: 35842962 DOI: 10.1016/j.jcis.2022.06.137] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 06/22/2022] [Accepted: 06/25/2022] [Indexed: 10/17/2022]
Abstract
The development of microwave absorbing materials with strong absorption capacity, wide bandwidth and light weight has always been a topic of concern. Herein, one-dimensional (1D) M (Co, Ni)@polyaniline (PANI) nanochains (NCs) with adjustable thickness have been successfully synthesized by reducing the mental ions under a parallel magnetic field, pretreating metal nanochains with KH550 and pre-oxidization of aniline monomer. It is found that Co has a more favorable absorption width for electromagnetic waves (EMW) and Ni aims at the absorption intensity. Furthermore, the effect of metal elements on adjusting impedance matching is more significant than their magnetic loss for composites. The minimum reflection loss (RLmin) of CoP2 can be up to -73.16 dB at 4.63 mm and the effective absorption bandwidth (EAB) is 4.98 GHz at 2.17 mm, while those of NiP2 are -65.06 dB at 3.88 mm and 5.02 GHz at 2.05 mm. The increase of PANI content can significantly reduce the matching thickness. And the RLmin of CoP3 and NiP3 can reach -58.72 dB at 2.32 mm and -65.96 dB at 1.59 mm, respectively. The absorption mechanism reveals that the matching thickness of the quarter-wavelength determines frequency location. And high absorption intensity is attributed to the synergistic effects of impedance matching, conduction loss, polarization loss, and magnetic loss. This work provides a theoretical basis for designing PANI or other conducting polymers coating magnetic nanochains for electromagnetic absorbing materials with strong absorption capacity, wide bandwidth and light weight.
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Affiliation(s)
- Bo Dai
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Yong Ma
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China.
| | - Shixuan Feng
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Haowen Wang
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Mingliang Ma
- School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, PR China.
| | - Jianxu Ding
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Xunqian Yin
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China
| | - Tingxi Li
- School of Material Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, PR China.
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21
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Chen Q, Su X, Liu X, Wang J, Song R, He D, Chaemchuen S, Verpoort F. Bimetallic-doped Zeolitic imidazole framework-derived Cobalt-Nitrogen-Carbon supported on reduced graphene oxide enabling efficient microwave absorption. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Huan X, Wang H, Deng W, Yan J, Xu K, Geng H, Guo X, Jia X, Zhou J, Yang X. Integrating Multi-Heterointerfaces in a 1D@2D@1D Hierarchical Structure via Autocatalytic Pyrolysis for Ultra-Efficient Microwave Absorption Performance. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105411. [PMID: 35138032 DOI: 10.1002/smll.202105411] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 12/20/2021] [Indexed: 06/14/2023]
Abstract
Developing microwave absorption (MA) materials with ultrahigh efficiency and facile preparation method remains a challenge. Herein, a superior 1D@2D@1D hierarchical structure integrated with multi-heterointerfaces via self-assembly and an autocatalytic pyrolysis is designed to fully unlock the microwave attenuation potential of materials, realizing ultra-efficient MA performance. By precisely regulating the morphology of the metal organic framework precursor toward improved impedance matching and intelligently integrating multi-heterointerfaces to boosted dielectric polarization, the specific return loss value of composites can be effectively tuned and optimized to -1002 dB at a very thin thickness of 1.8 mm. These encouraging achievements shed fresh insights into the precise design of ultra-efficient MA materials.
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Affiliation(s)
- Xianhua Huan
- State Key Laboratory of Organic-Inorganic Composites, Key Laboratory of Carbon Fibre and Functional Polymer, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Hongtao Wang
- State Key Laboratory of Organic-Inorganic Composites, Key Laboratory of Carbon Fibre and Functional Polymer, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Wenchao Deng
- State Key Laboratory of Organic-Inorganic Composites, Key Laboratory of Carbon Fibre and Functional Polymer, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Jiqiang Yan
- State Key Laboratory of Organic-Inorganic Composites, Key Laboratory of Carbon Fibre and Functional Polymer, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Ke Xu
- Inner Mongolia Aerospace Hong Gang Machinery Corporation Limited, Inner Mongolia, 010076, P. R. China
| | - Hongbo Geng
- Inner Mongolia Aerospace Hong Gang Machinery Corporation Limited, Inner Mongolia, 010076, P. R. China
| | - Xiaodong Guo
- Inner Mongolia Aerospace Hong Gang Machinery Corporation Limited, Inner Mongolia, 010076, P. R. China
| | - Xiaolong Jia
- State Key Laboratory of Organic-Inorganic Composites, Key Laboratory of Carbon Fibre and Functional Polymer, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Jisheng Zhou
- State Key Laboratory of Organic-Inorganic Composites, Key Laboratory of Carbon Fibre and Functional Polymer, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites, Key Laboratory of Carbon Fibre and Functional Polymer, Ministry of Education, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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23
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Pan F, Cai L, Shi Y, Dong Y, Zhu X, Cheng J, Jiang H, Wang X, Jiang Y, Lu W. Heterointerface Engineering of β-Chitin/Carbon Nano-Onions/Ni-P Composites with Boosted Maxwell-Wagner-Sillars Effect for Highly Efficient Electromagnetic Wave Response and Thermal Management. NANO-MICRO LETTERS 2022; 14:85. [PMID: 35352181 PMCID: PMC8964898 DOI: 10.1007/s40820-022-00804-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Accepted: 01/05/2022] [Indexed: 05/11/2023]
Abstract
The rational construction of microstructure and composition with enhanced Maxwell-Wagner-Sillars effect (MWSE) is still a challenging direction for reinforcing electromagnetic wave (EMW) absorption performance, and the related EMW attenuation mechanism has rarely been elucidated. Herein, MWSE boosted β-chitin/carbon nano-onions/Ni-P composites is prepared according to the heterointerface engineering strategy via facile layer-by-layer electrostatic assembly and electroless plating techniques. The heterogeneous interface is reinforced from the aspect of porous skeleton, nanomaterials and multilayer construction. The composites exhibit competitive EMW response mechanism between the conductive loss and the polarization/magnetic loss, as describing like the story of "The Hare and the Tortoise". As a result, the composites not only achieve a minimum reflection loss (RLmin) of - 50.83 dB and an effective bandwidth of 6.8 GHz, but also present remarkable EMW interference shielding effectiveness of 66.66 dB. In addition, diverse functions such as good thermal insulation, infrared shielding and photothermal performance were also achieved in the hybrid composites as a result of intrinsic morphology and chemicophysics properties. Therefore, we believe that the boosted MWSE open up a novel orientation toward developing multifunctional composites with high-efficient EMW response and thermal management.
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Affiliation(s)
- Fei Pan
- Shanghai Key Laboratory 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 Laboratory 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 Laboratory of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China
| | - Yanyan Dong
- Shanghai Key Laboratory 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 Laboratory of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China
| | - Jie Cheng
- Shanghai Key Laboratory of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China
| | - Haojie Jiang
- Shanghai Key Laboratory of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China
| | - Xiao Wang
- Shanghai Key Laboratory of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China
| | - Yifeng Jiang
- School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia
| | - Wei Lu
- Shanghai Key Laboratory of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China.
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24
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Xu J, Liu D, Meng Y, Tang S, Wang F, Bian C, Chen X, Xiao S, Meng X, Yang N. CoFe 2O 4nanoparticles dispersed on carbon rods derived from cotton for high-efficiency microwave absorption. NANOTECHNOLOGY 2022; 33:215603. [PMID: 35105828 DOI: 10.1088/1361-6528/ac50ee] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/01/2022] [Indexed: 06/14/2023]
Abstract
Biomass-derived carbon materials have received a surge of scientific attention to develop lightweight and broadband microwave absorbers. Herein, rodlike porous carbon materials derived from cotton have been fabricated with uniformly dispersed CoFe2O4nanoparticles via facile and scalable process. The combination of magnetic particles and carbonaceous material is advantageous to realize the magnetic-dielectric synergistic effect which could effectively promote the dissipation of incident waves, giving rise to an optimal reflection loss value of -48.2 dB over a qualified bandwidth (4.8 GHz) at 2.5 mm. The cotton-derived carbon rods with conductive network not only act as a supporter to carry the CoFe2O4nanoparticles, but also provide massive heterointerfaces to facilitate the interfacial polarization. In consideration of the renewable and abundant resource of cotton, the as-prepared CoFe2O4/C composites would meet the increasing demand of lightweight and highly efficient microwave absorbers.
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Affiliation(s)
- Jiajun Xu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Dong Liu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Yubo Meng
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Shiyu Tang
- School of Resources and Environmental Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Fei Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Chao Bian
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Xiaoyue Chen
- School of Resources and Environmental Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Siren Xiao
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Xiuxia Meng
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
| | - Naitao Yang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, People's Republic of China
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25
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Ding S, Zhu C, Hojo H, Einaga H. Enhanced catalytic performance of spinel-type Cu-Mn oxides for benzene oxidation under microwave irradiation. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127523. [PMID: 34736176 DOI: 10.1016/j.jhazmat.2021.127523] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/13/2021] [Accepted: 10/13/2021] [Indexed: 06/13/2023]
Abstract
Microwave-assisted heterogeneous catalytic oxidation of benzene was investigated over Cu-Mn spinel oxides. The spinel oxides were synthesized by a coprecipitation method from metal nitrate hydrolysis in a solution using tetramethylammonium hydroxide (TMAH) as a precipitation reagent. The catalysts were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, X-ray absorption fine structure, scanning electron microscopy, transmission electron microscope and H2-temperature-programmed reduction studies. Microwave absorption by the Cu-Mn spinel oxide is mainly driven by dielectric losses (dielectric heating). Cu-Mn spinel oxide with a Cu/Mn ratio of 1 exhibited superior activity to single oxides under microwave heating, demonstrating lower apparent activation energy than that obtained under conventional heating. Microwave irradiation lowered the reaction temperature required for benzene oxidation compared with conventional heating. Transient tests were used to investigate the reactivity of oxygen species in the catalytic reaction, and the high reactivity of Cu-Mn spinel oxides was related to the high reactivity of lattice oxygen on the catalyst surface. The reactivity of the oxygen species was enhanced under microwave heating, leading to an enhanced benzene oxidation reaction. The combination of adsorption and catalytic oxidation processes using Cu-Mn spinel oxides and zeolites efficiently decomposed benzene at low concentrations.
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Affiliation(s)
- Siyu Ding
- Department of Molecular and Material Sciences, Graduate School of Engineering Sciences, Kyushu University, 6-1, Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
| | - Chen Zhu
- Department of Molecular and Material Sciences, Graduate School of Engineering Sciences, Kyushu University, 6-1, Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
| | - Hajime Hojo
- Department of Material Sciences, Faculty of Engineering Sciences, Kyushu University, 6-1, Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
| | - Hisahiro Einaga
- Department of Material Sciences, Faculty of Engineering Sciences, Kyushu University, 6-1, Kasugakoen, Kasuga, Fukuoka 816-8580, Japan.
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26
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Yang W, Yan L, Jiang B, Wang P, Li Z, Wang C, Bai H, Zhang C, Li Y. Crumpled Nitrogen-Doped Porous Carbon Nanosheets Derived from Petroleum Pitch for High-Performance and Flexible Electromagnetic Wave Absorption. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04481] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Wang Yang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Changping 102249, China
| | - Lu Yan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Changping 102249, China
| | - Bo Jiang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Changping 102249, China
| | - Peng Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Changping 102249, China
| | - Zhengxuan Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Changping 102249, China
| | - Chaonan Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Changping 102249, China
| | - Hengxuan Bai
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Changping 102249, China
| | - Chengxiao Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Changping 102249, China
| | - Yongfeng Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, Changping 102249, China
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27
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Xu Y, Lin Z, Yang Y, Duan H, Zhao G, Liu Y, Hu Y, Sun R, Wong CP. Integration of efficient microwave absorption and shielding in a multistage composite foam with progressive conductivity modular design. MATERIALS HORIZONS 2022; 9:708-719. [PMID: 34850791 DOI: 10.1039/d1mh01346g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Ultra-efficient electromagnetic interference (EMI) shielding composites with excellent microwave absorbing properties are the most desirable solution for eliminating microwave pollution. However, integrating absorbing and electromagnetic shielding materials is a difficult challenge because they have different design strategies. In this work, the compatibility of high absorption and shielding capability based on progressive conductivity modular design was realized. Reduced graphene oxide@ferroferric oxide/carbon nanotube/tetraneedle-like ZnO whisker@silver/waterborne polyurethane (rGO@Fe3O4/CNT/T-ZnO@Ag/WPU) multistage composite foams with aligned porous structures were fabricated, which exhibited an excellent average EMI SE > 92.3 dB and remarkable microwave absorption performance with reflection loss < -10 dB in the frequency range of 8.2-18.0 GHz. The average shielding effectiveness of reflection (SER) and reflectivity (R) are as low as 0.065 dB and 0.015, respectively. Besides, the correlations between the morphology and structure of the composite foam and the electromagnetic wave attenuation mechanism were established via electromagnetic simulation. Significantly, the integration of efficient absorbing and shielding materials was realized for the first time. Such composite foams with electromagnetic wave absorption and shielding characteristics are light weight and structurally designable with an adjustable shielding mechanism, and exhibit low filler consumption and high performance. They display promising applications in demanding electromagnetic environments. Our work provides a new strategy to design ultra-efficient EMI shielding materials with reliable absorption-dominated features.
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Affiliation(s)
- Yadong Xu
- A Key Laboratory of Functional Nanocomposites of Shanxi Province, College of Materials Science and Engineering, North University of China, Taiyuan 030051, P. R. China.
- Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China.
| | - Zhiqiang Lin
- Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China.
| | - Yaqi Yang
- A Key Laboratory of Functional Nanocomposites of Shanxi Province, College of Materials Science and Engineering, North University of China, Taiyuan 030051, P. R. China.
| | - Hongji Duan
- A Key Laboratory of Functional Nanocomposites of Shanxi Province, College of Materials Science and Engineering, North University of China, Taiyuan 030051, P. R. China.
| | - Guizhe Zhao
- A Key Laboratory of Functional Nanocomposites of Shanxi Province, College of Materials Science and Engineering, North University of China, Taiyuan 030051, P. R. China.
| | - Yaqing Liu
- A Key Laboratory of Functional Nanocomposites of Shanxi Province, College of Materials Science and Engineering, North University of China, Taiyuan 030051, P. R. China.
| | - Yougen Hu
- Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China.
| | - Rong Sun
- Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, P. R. China.
| | - Ching-Ping Wong
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
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28
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Yang D, Qi X, Zhang W, Yang N, Chen M, Wang Y, Huang L, Wang J, Wang S, Strizhak P, Tang J. Extremely high reinforcement of high‐density polyethylene by low loading of unzipped multi‐wall carbon nanotubes. J Appl Polym Sci 2022. [DOI: 10.1002/app.51478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Di Yang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Xiaohua Qi
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Wenna Zhang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Na Yang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Mengyao Chen
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Yao Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Linjun Huang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Jiuxing Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Shicao Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
| | - Peter Strizhak
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
- L.V. Pysarzhevskii Institute of Physical Chemistry National Academy of Sciences of Ukraine Kyiv Ukraine
| | - Jianguo Tang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials Qingdao University Qingdao China
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29
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Liang L, Gu W, Wu Y, Zhang B, Wang G, Yang Y, Ji G. Heterointerface Engineering in Electromagnetic Absorbers: New Insights and Opportunities. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2106195. [PMID: 34599773 DOI: 10.1002/adma.202106195] [Citation(s) in RCA: 89] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 09/15/2021] [Indexed: 05/24/2023]
Abstract
Electromagnetic (EM) absorbers play an increasingly essential role in the electronic information age, even toward the coming "intelligent era". The remarkable merits of heterointerface engineering and its peculiar EM characteristics inject a fresh and infinite vitality for designing high-efficiency and stimuli-responsive EM absorbers. However, there still exist huge challenges in understanding and reinforcing these interface effects from the micro and macro perspectives. Herein, EM response mechanisms of interfacial effects are dissected in depth, and with a focus on advanced characterization as well as theoretical techniques. Then, the representative optimization strategies are systematically discussed with emphasis on component selection and structural design. More importantly, the most cutting-edge smart EM functional devices based on heterointerface engineering are reported. Finally, current challenges and concrete suggestions are proposed, and future perspectives on this promising field are also predicted.
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Affiliation(s)
- Leilei Liang
- School of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Weihua Gu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China
| | - Yue Wu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China
| | - Baoshan Zhang
- School of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Gehuan Wang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China
| | - Yi Yang
- School of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, P. R. China
| | - Guangbin Ji
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P. R. China
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30
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Huang Y, Xue W, Hou X, Zhao R. Metal Oxide/Nitrogen-Doped Carbon Nanosheet Heteronanostructures as Highly Efficient Electromagnetic Wave Absorbing Materials. Molecules 2021; 26:molecules26247537. [PMID: 34946620 PMCID: PMC8708817 DOI: 10.3390/molecules26247537] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 11/24/2021] [Accepted: 12/10/2021] [Indexed: 11/16/2022] Open
Abstract
In this paper, we will discuss the excellent broadband microwave absorption behaviors of Cu/CuO/carbon nanosheet composites: traces of copper and oxide embedded in a carbon nano-sheet not only cut down the high permittivity of adsorbs but also induce more interfacial polarization centers. The results showed that at a cracking temperature of 900 °C, the fabricated material has a unique ripple-like structure, which promotes the hierarchical interfacial polarization. The prepared material has a maximum absorption bandwidth of 4.48 GHz at an exceedingly thin thickness of 1.7 mm and a maximum reflection loss of −25.3 dB at a thickness of 2 mm. It is a relatively ideal material for electromagnetic wave absorption.
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31
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Zhao R, Xia J, Adamaquaye P, Zhao G. High density interfaces enhanced microwave absorption in multifunctional carbon
nanotubes‐glass fiber‐epoxy
composites. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Rong Zhao
- Department of Physics and Nano Materials Laboratory Southern University and A&M College Baton Rouge Louisiana USA
| | - Jiaxin Xia
- Department of Physics and Nano Materials Laboratory Southern University and A&M College Baton Rouge Louisiana USA
| | - Peter Adamaquaye
- Department of Physics and Nano Materials Laboratory Southern University and A&M College Baton Rouge Louisiana USA
| | - Guang‐lin Zhao
- Department of Physics and Nano Materials Laboratory Southern University and A&M College Baton Rouge Louisiana USA
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32
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Meng X, Lei W, Yang W, Liu Y, Yu Y. Fe3O4 nanoparticles coated with ultra-thin carbon layer for polarization-controlled microwave absorption performance. J Colloid Interface Sci 2021; 600:382-389. [DOI: 10.1016/j.jcis.2021.05.055] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 05/08/2021] [Accepted: 05/10/2021] [Indexed: 11/30/2022]
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33
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Solgi S, Seyed Dorraji MS, Hosseini SF, Rasoulifard MH, Hajimiri I, Amani-Ghadim A. Improvement of microwave absorption properties of polyester coatings using NiFe 2O 4, X-doped g-C 3N 4 (X = S, P, and O), and MTiO 3 (M = Fe, Mg, and Zn) nanofillers. Sci Rep 2021; 11:19339. [PMID: 34588525 PMCID: PMC8481508 DOI: 10.1038/s41598-021-98666-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 09/08/2021] [Indexed: 11/09/2022] Open
Abstract
In recent decades, to reduce electromagnetic pollution, scientists focus on finding new microwave absorbers with effective performance, thin thickness, and broad bandwidth. In this work, the nanoparticles of NiFe2O4, X-doped g-C3N4 (M = S, P, and O), and MTiO3 (M = Fe, Mg, and Zn) were successfully synthesized using co-precipitation, specific heat program, and semi-wet sol–gel methods, respectively. The synthesized nanoparticles were utilized as absorption agents and polyester resin as the matrix. Morphology, particle size, crystal structure, and chemical composition of the prepared nanocomposites were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffractometer (XRD), and energy dispersive X-Ray analysis (EDX), respectively. The microwave absorption performance of the coatings was also investigated by a vector network analyzer (VNA). Moreover, the effect of different parameters on the performance of absorbent coatings was studied by the Taguchi method and optimized to achieve an optimal absorbent. The results showed that the optimal nanocomposite has the reflectance loss (RL) less than − 30 dB (equal to absorption > 99%) at a high-frequency range (8–12 GHz) and 1 mm thickness. Furthermore, the addition of such novel nanoparticles to absorbents resulted in high values of attenuation constant (more than 200 dB/m) at the X-band. Therefore, the polyester coating filled with ZnTiO3, O-doped g-C3N4, and NiFe2O4 nanofillers can be considered a high-efficiency and low-density absorber.
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Affiliation(s)
- Somayeh Solgi
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Mir Saeed Seyed Dorraji
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran.
| | - Seyyedeh Fatemeh Hosseini
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Mohammad Hossein Rasoulifard
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Ismael Hajimiri
- Applied Chemistry Research Laboratory, Department of Chemistry, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Alireza Amani-Ghadim
- Department of Chemistry, Faculty of Science, Azarbaijan Shahid Madani University, P.O. Box 83714-161, Tabriz, Iran
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34
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Chen G, Zhang L, Luo B, Wu H. Optimal control of the compositions, interfaces, and defects of hollow sulfide for electromagnetic wave absorption. J Colloid Interface Sci 2021; 607:24-33. [PMID: 34492350 DOI: 10.1016/j.jcis.2021.08.186] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 08/27/2021] [Accepted: 08/28/2021] [Indexed: 11/24/2022]
Abstract
The aimlessness in the selection of dielectric absorbing materials and the regulation of complex permittivity consumes time and resources. It is an effective way to construct electromagnetic wave (EMW)-absorbing materials dominated by dielectric loss to select materials and adjust complex permittivity based on theory. With sulfide as an example, a hollow ZnO/ZnS composite was constructed using ZnO as a hard template. Subsequently, based on the diverse binding ability of Cu and Zn ions to S ions, the compositions, interfaces, and defects of the sample were simultaneously regulated. There was competition and synergy between the relaxation process caused by the defects and interfaces and the conductivity loss, resulting in the regulation of complex permittivity. Furthermore, the hollow structure effectively reduced the density of the material and improved the impedance matching ability of the sample. As a result, the effective absorption bandwidth (EAB) of the hollow nanoflower ZnO/ZnS/CuS composite reached 5.2 GHz (from 12.8 to 18 GHz) with a matching thickness of 1.59 mm. This method provides a direction for ameliorating the complex permittivity of EMW-absorbing materials dominated by dielectric loss to realize broadband absorption.
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Affiliation(s)
- Geng Chen
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, 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, China.
| | - Bingcheng Luo
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, 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, China; School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China.
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35
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Ma M, Liang N, Hou P, Zhang P, Cao J, Liu H, Xu X, Yue H, Tian G, Feng S. Humins with Efficient Electromagnetic Wave Absorption: A By-Product of Furfural Conversion to Isopropyl Levulinate via a Tandem Catalytic Reaction in One-Pot. Chemistry 2021; 27:12659-12666. [PMID: 34111323 DOI: 10.1002/chem.202101928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Indexed: 11/11/2022]
Abstract
Both one-pot catalytic conversion of furfural (FAL) to isopropyl levulinate (PL) and carbonization of by-product (humins) for electromagnetic wave absorption are discussed, which provides inspiration that humins can be applied to electromagnetic wave absorption. In the former, phosphotungstic acid (PW) is employed as a homogeneous catalyst to convert FAL to PL via a tandem reaction in one pot, with the formation of a vast amount of humins. With FAL and various intermediates as substrates, it was found that humins was a polymerization product of FAL, furfuryl alcohol (FOL) and furfuryl ester (FE) with furan rings. In addition, the in situ attenuated total reflection infrared (ATR-IR) spectra also provided a basis for the proposed reaction route. In the latter, with the humins as raw material, P species and WO3 doped nano-porous carbon (Humins-700) platform formed after high-temperature annealing is used for electromagnetic wave absorption and manifests desirable absorption performance. The minimum reflection loss (RLmin ) value is -47.3 dB at 13.0 GHz with a thickness of 2.0 mm and the effective absorption bandwidth reaches 4.5 GHz (11.2-5.7 GHz).
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Affiliation(s)
- Mingwei Ma
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qian†jin Road, Changchun, 130012, P.R. China
| | - Na Liang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qian†jin Road, Changchun, 130012, P.R. China
| | - Pan Hou
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qian†jin Road, Changchun, 130012, P.R. China
| | - Peng Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qian†jin Road, Changchun, 130012, P.R. China
| | - Jingjie Cao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qian†jin Road, Changchun, 130012, P.R. China
| | - Hui Liu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qian†jin Road, Changchun, 130012, P.R. China
| | - Xingliang Xu
- College of Chemistry and Material Science, Shandong Agricultural University, Shandong, 271018, Taian, P. R. China
| | - Huijuan Yue
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qian†jin Road, Changchun, 130012, P.R. China
| | - Ge Tian
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qian†jin Road, Changchun, 130012, P.R. China
| | - Shouhua Feng
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qian†jin Road, Changchun, 130012, P.R. China
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36
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Zhang Z, Cai Z, Xia L, Zhao D, Fan F, Huang Y. Synergistically Assembled Cobalt-Telluride/Graphene Foam with High-Performance Electromagnetic Wave Absorption in Both Gigahertz and Terahertz Band Ranges. ACS APPLIED MATERIALS & INTERFACES 2021; 13:30967-30979. [PMID: 34165957 DOI: 10.1021/acsami.1c05351] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Electromagnetic wave (EMW)-absorbing materials have a great impact on civil use and national defense. In this paper, a novel composite, RGO@6CoTe2-300 (the mass ratio of reduced graphene oxide to CoTe2 is 1:6, annealed at 300 °C), has been obtained through a facile melt-diffusion method and solvothermal method. The as-prepared samples have shown excellent reflection losses (RL) and effective adsorption bandwidth (EAB) by controlling the loading of CoTe2 and the annealing temperature. The sample has exhibited a RL of -62.2 dB at 13.04 GHz with the matching thickness of 3.53 mm, and the EAB reaches 8.2 GHz at 2-18 GHz. Moreover, excellent terahertz (THz) absorption property is also obtained at 0.2-2.0 THz. A RL of 54.07 dB is acquired, and the EAB covers 100% of the entire measured bandwidth. Thus, RGO@6CoTe2-300 can be considered as a promising EMW absorption material in both gigahertz and terahertz band ranges.
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Affiliation(s)
- Zhiwei Zhang
- National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin 300350, PR China
| | - Zhihao Cai
- National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin 300350, PR China
| | - Lun Xia
- National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin 300350, PR China
| | - Dan Zhao
- Institute of Modern Optics, Nankai University, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, PR China
| | - Fei Fan
- Institute of Modern Optics, Nankai University, Tianjin Key Laboratory of Micro-scale Optical Information Science and Technology, Tianjin 300350, PR China
| | - Yi Huang
- National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin 300350, PR China
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37
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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: 58] [Impact Index Per Article: 19.3] [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.
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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.
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Lyu L, Wang F, Li B, Zhang X, Qiao J, Yang Y, Liu J. Constructing 1T/2H MoS2 nanosheets/3D carbon foam for high-performance electromagnetic wave absorption. J Colloid Interface Sci 2021; 586:613-620. [DOI: 10.1016/j.jcis.2020.10.129] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/27/2020] [Accepted: 10/28/2020] [Indexed: 12/27/2022]
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Yi P, Yao Z, Zhou J, Wei B, Lei L, Tan R, Fan H. Facile synthesis of 3D Ni@C nanocomposites derived from two kinds of petal-like Ni-based MOFs towards lightweight and efficient microwave absorbers. NANOSCALE 2021; 13:3119-3135. [PMID: 33523065 DOI: 10.1039/d0nr07991j] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The development of lightweight and high-efficiency microwave absorption materials has attracted wide attention in the field of electromagnetic wave absorption. Herein, two kinds of petal-like Ni-based MOFs were grown on the surface of graphene nanosheets, and then pyrolyzed to obtain new microwave absorbers. The extraordinary microwave absorption performance mainly comes from: the unique petal-like porous carbon framework of MOFs, the 3D conductive network formed by the connection of GNs, the polarization process between the interfaces of multiple heterogeneous components and high impedance matching brought about by magnetic Ni nanoparticles. By adjusting the filling ratio to only 10 wt%, the optimum reflection loss of the prepared composites is up to -53.99 dB, and the effective absorption bandwidth reaches 4.39 GHz when the matching thickness is only 1.4 mm. This work provides not only a facile method for the design and fabrication of two high-efficiency microwave absorbers, but also a reference for the precise control of electromagnetic absorption properties.
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Affiliation(s)
- Pengshu Yi
- College of Materials and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China.
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Hu H, Zheng Y, Ren K, Wang J, Zhang Y, Zhang X, Che R, Qin G, Jiang Y. Position selective dielectric polarization enhancement in CNT based heterostructures for highly efficient microwave absorption. NANOSCALE 2021; 13:2324-2332. [PMID: 33459745 DOI: 10.1039/d0nr08245g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Constructing carbon nanotube (CNT) based heterostructures has proven to be an effective way of improving the microwave absorption (MA) capability of these materials, regardless of whether the heterostructures are located on the inner or outer walls of the CNTs. However, the potential of the two sides of CNTs for constructing efficient MA heterostructures has not been compared, and the underlying mechanism behind this difference has not been determined. Therefore, CNT based heterostructures with Fe2O3 nanoparticles inside (Fe2O3-in-CNTs) and outside (Fe2O3-out-CNTs) of the CNTs were synthesized and characterized. The minimum reflection loss and maximum effective bandwidth of the Fe2O3-in-CNTs are -34.1 dB at 3.0 mm and 5.1 GHz at 2.6 mm, much better than those of the Fe2O3-out-CNTs. Stronger interfacial polarization at the inner surface of the CNTs than at the outer surface was confirmed using off-axis electron holography, which is regarded as the key factor that determines the excellent MA performance of the heterointerface constructed by the inner surface of the CNTs. The attractive potential of the inner surface of CNTs for constructing highly efficient MA heterostructures has, to our knowledge, not been proposed before, the findings of which can shed the light on the approach of developing CNT composited MA materials that have outstanding MA properties.
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Affiliation(s)
- Haihua Hu
- Key Laboratory for Anisotropy and Texture of Materials (MOE), School of Materials Science and Engineering, Northeastern University, Shenyang 110819, People's Republic of China.
| | - Yun Zheng
- Key Laboratory for Anisotropy and Texture of Materials (MOE), School of Materials Science and Engineering, Northeastern University, Shenyang 110819, People's Republic of China.
| | - Kun Ren
- Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310012, People's Republic of China
| | - Jieying Wang
- Key Laboratory for Anisotropy and Texture of Materials (MOE), School of Materials Science and Engineering, Northeastern University, Shenyang 110819, People's Republic of China.
| | - Yanhui Zhang
- Key Laboratory for Anisotropy and Texture of Materials (MOE), School of Materials Science and Engineering, Northeastern University, Shenyang 110819, People's Republic of China.
| | - Xuefeng Zhang
- Key Laboratory for Anisotropy and Texture of Materials (MOE), School of Materials Science and Engineering, Northeastern University, Shenyang 110819, People's Republic of China. and Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310012, People's Republic of China
| | - Renchao Che
- 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
| | - Gaowu Qin
- Key Laboratory for Anisotropy and Texture of Materials (MOE), School of Materials Science and Engineering, Northeastern University, Shenyang 110819, People's Republic of China.
| | - Yong Jiang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
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Chen Z, Mu D, Liu T, He Z, Zhang Y, Yang H, Ouyang J. PANI/BaFe 12O 19@Halloysite ternary composites as novel microwave absorbent. J Colloid Interface Sci 2021; 582:137-148. [PMID: 32818711 DOI: 10.1016/j.jcis.2020.08.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/02/2020] [Accepted: 08/03/2020] [Indexed: 11/19/2022]
Abstract
A three-phase PANI/BaFe12O19@Hal heterostructure was designed and fabricated in this paper as efficient lightweight electromagnetic wave absorbing material through the combination of citrate assisted sol-gel self-propagating combustion and in-situ oxidative polymerization of aniline. In addition, the effects of the weight ratio of different PANI to BF@Hal on the microwave absorption properties of the materials were studied. The results show that when the weight ratio of PANI is 40%, the material has the best microwave absorption performance. The frequency bandwidth below -5 dB reached 9.60 GHz and the minimum absorption peak at 11.92 GHz was -14.77 dB. The combination of the PANI and BF@Hal nanosheets take advantage of the interfacial polarization, natural resonance, dielectric polarization and trapping of EM waves by internal reflection in PANI/BaFe12O19@Hal. Taking advantage of the unique microscopic morphology and interface characteristics, halloysite was introduced to improve the microwave absorption performance and enrich the absorbing mechanism of the composite materials. This work may provide a reliable candidate for the synthesis of electromagnetic attenuation materials with fairly good performances.
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Affiliation(s)
- Zihao Chen
- Centre for Mineral Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China; Key Laboratory for Mineral Materials and Application of Hunan Province, Central South University, Changsha, Hunan 410083, China; Key Lab of Clay Mineral Functional Materials in China Building Materials Industry, Central South University, Changsha, Hunan 410083, China
| | - Dawei Mu
- Centre for Mineral Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China; Key Laboratory for Mineral Materials and Application of Hunan Province, Central South University, Changsha, Hunan 410083, China; Key Lab of Clay Mineral Functional Materials in China Building Materials Industry, Central South University, Changsha, Hunan 410083, China
| | - Tianhao Liu
- Centre for Mineral Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China; Key Laboratory for Mineral Materials and Application of Hunan Province, Central South University, Changsha, Hunan 410083, China; Key Lab of Clay Mineral Functional Materials in China Building Materials Industry, Central South University, Changsha, Hunan 410083, China
| | - Zilong He
- Centre for Mineral Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China; Key Laboratory for Mineral Materials and Application of Hunan Province, Central South University, Changsha, Hunan 410083, China; Key Lab of Clay Mineral Functional Materials in China Building Materials Industry, Central South University, Changsha, Hunan 410083, China
| | - Yi Zhang
- Centre for Mineral Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China; Key Laboratory for Mineral Materials and Application of Hunan Province, Central South University, Changsha, Hunan 410083, China; Key Lab of Clay Mineral Functional Materials in China Building Materials Industry, Central South University, Changsha, Hunan 410083, China
| | - Huaming Yang
- Centre for Mineral Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China; Key Laboratory for Mineral Materials and Application of Hunan Province, Central South University, Changsha, Hunan 410083, China; Key Lab of Clay Mineral Functional Materials in China Building Materials Industry, Central South University, Changsha, Hunan 410083, China
| | - Jing Ouyang
- Centre for Mineral Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha, Hunan 410083, China; Key Laboratory for Mineral Materials and Application of Hunan Province, Central South University, Changsha, Hunan 410083, China; Key Lab of Clay Mineral Functional Materials in China Building Materials Industry, Central South University, Changsha, Hunan 410083, China.
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Zhang Z, Cai Z, Wang Z, Peng Y, Xia L, Ma S, Yin Z, Huang Y. A Review on Metal-Organic Framework-Derived Porous Carbon-Based Novel Microwave Absorption Materials. NANO-MICRO LETTERS 2021; 13:56. [PMID: 34138258 PMCID: PMC8187524 DOI: 10.1007/s40820-020-00582-3] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 11/30/2020] [Indexed: 05/02/2023]
Abstract
The development of microwave absorption materials (MAMs) is a considerable important topic because our living space is crowed with electromagnetic wave which threatens human's health. And MAMs are also used in radar stealth for protecting the weapons from being detected. Many nanomaterials were studied as MAMs, but not all of them have the satisfactory performance. Recently, metal-organic frameworks (MOFs) have attracted tremendous attention owing to their tunable chemical structures, diverse properties, large specific surface area and uniform pore distribution. MOF can transform to porous carbon (PC) which is decorated with metal species at appropriate pyrolysis temperature. However, the loss mechanism of pure MOF-derived PC is often relatively simple. In order to further improve the MA performance, the MOFs coupled with other loss materials are a widely studied method. In this review, we summarize the theories of MA, the progress of different MOF-derived PC‑based MAMs, tunable chemical structures incorporated with dielectric loss or magnetic loss materials. The different MA performance and mechanisms are discussed in detail. Finally, the shortcomings, challenges and perspectives of MOF-derived PC‑based MAMs are also presented. We hope this review could provide a new insight to design and fabricate MOF-derived PC-based MAMs with better fundamental understanding and practical application.
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Affiliation(s)
- Zhiwei Zhang
- National Institute for Advanced Materials Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin, 300350, People's Republic of China
| | - Zhihao Cai
- National Institute for Advanced Materials Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin, 300350, People's Republic of China
| | - Ziyuan Wang
- National Institute for Advanced Materials Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin, 300350, People's Republic of China
| | - Yaling Peng
- National Institute for Advanced Materials Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin, 300350, People's Republic of China
| | - Lun Xia
- National Institute for Advanced Materials Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin, 300350, People's Republic of China
| | - Suping Ma
- National Institute for Advanced Materials Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin, 300350, People's Republic of China
| | - Zhanzhao Yin
- National Institute for Advanced Materials Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin, 300350, People's Republic of China
| | - Yi Huang
- National Institute for Advanced Materials Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Key Laboratory of Functional Polymer Materials, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), School of Materials Science and Engineering, Nankai University, Tianjin, 300350, People's Republic of China.
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Pan F, Liu Z, Deng B, Dong Y, Zhu X, Huang C, Lu W. Lotus Leaf-Derived Gradient Hierarchical Porous C/MoS 2 Morphology Genetic Composites with Wideband and Tunable Electromagnetic Absorption Performance. NANO-MICRO LETTERS 2021; 13:43. [PMID: 34138226 PMCID: PMC8187516 DOI: 10.1007/s40820-020-00568-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 11/01/2020] [Indexed: 05/17/2023]
Abstract
Inspired by the nature, lotus leaf-derived gradient hierarchical porous C/MoS2 morphology genetic composites (GHPCM) were successfully fabricated through an in situ strategy. The biological microstructure of lotus leaf was well preserved after treatment. Different pores with gradient pore sizes ranging from 300 to 5 μm were hierarchically distributed in the composites. In addition, the surface states of lotus leaf resulted in the Janus-like morphologies of MoS2. The GHPCM exhibit excellent electromagnetic wave absorption performance, with the minimum reflection loss of - 50.1 dB at a thickness of 2.4 mm and the maximum effective bandwidth of 6.0 GHz at a thickness of 2.2 mm. The outstanding performance could be attributed to the synergy of conductive loss, polarization loss, and impedance matching. In particularly, we provided a brand-new dielectric sum-quotient model to analyze the electromagnetic performance of the non-magnetic material system. It suggests that the specific sum and quotient of permittivity are the key to keep reflection loss below - 10 dB within a certain frequency range. Furthermore, based on the concept of material genetic engineering, the dielectric constant could be taken into account to seek for suitable materials with designable electromagnetic absorption performance.
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Affiliation(s)
- Fei Pan
- Shanghai Key Lab. of D &A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China
| | - Zhicheng Liu
- Shanghai Key Lab. of D &A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China
| | - Baiwen Deng
- Shanghai Key Lab. of D &A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China
| | - Yanyan Dong
- 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
| | - Chuang Huang
- School of Materials Science & Engineering, University of Shanghai for Science and Technology, Shanghai, 200092, 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.
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Yue L, Zhong B, Xia L, Zhang T, Yu Y, Huang X. Three-dimensional network-like structure formed by silicon coated carbon nanotubes for enhanced microwave absorption. J Colloid Interface Sci 2021; 582:177-186. [DOI: 10.1016/j.jcis.2020.08.024] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/06/2020] [Accepted: 08/06/2020] [Indexed: 01/17/2023]
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45
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Self-Assembly CNTs@PANi Coffee Rings on Poly(styrene-ethylene-butylene-styrene) Triblock Copolymer for Largely Stretchable Electronics. Polymers (Basel) 2020; 12:polym12122847. [PMID: 33260397 PMCID: PMC7760645 DOI: 10.3390/polym12122847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 11/23/2020] [Accepted: 11/26/2020] [Indexed: 12/12/2022] Open
Abstract
In this paper, CNTs@PANi nanocomposites were prepared by in-situ oxidation polymerization of aniline, and their structure, morphology and conductivity were characterized. A mixed solvent of toluene and tetrahydrofuran was used to prepare dispersions of CNTs@PANi and poly(styrene-ethylene-butylene-styrene) (SEBS) triblock copolymer, and bilayer composite film was prepared. According to the solvent phase separation and uneven evaporation flux, CNTs@PANi self-assembled into the interconnected coffee ring structure on the SEBS matrix. The prepared bilayer composite film had excellent stretchability, and the conductivity of the functional layer was close to that of CNTs@PANi, which could light up an LED lamp under 100% strain and restore the topological structure. Electrochemical tests showed that the bilayer film had obvious heterogeneity. The impedance characteristics of the CNTs@PANi functional layer and the SEBS matrix were analyzed, and its heterogeneous corrosion resistance mechanism further discussed.
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46
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Zhang M, Han C, Cao WQ, Cao MS, Yang HJ, Yuan J. A Nano-Micro Engineering Nanofiber for Electromagnetic Absorber, Green Shielding and Sensor. NANO-MICRO LETTERS 2020; 13:27. [PMID: 34138252 PMCID: PMC8187527 DOI: 10.1007/s40820-020-00552-9] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 10/15/2020] [Indexed: 05/16/2023]
Abstract
The role of electron transport characteristics in electromagnetic (EM) attenuation can be generalized to other EM functional materials. The integrated functions of efficient EM absorption and green shielding open the view of EM multifunctional materials. A novel sensing mechanism based on intrinsic EM attenuation performance and EM resonance coupling effect is revealed. It is extremely unattainable for a material to simultaneously obtain efficient electromagnetic (EM) absorption and green shielding performance, which has not been reported due to the competition between conduction loss and reflection. Herein, by tailoring the internal structure through nano-micro engineering, a NiCo2O4 nanofiber with integrated EM absorbing and green shielding as well as strain sensing functions is obtained. With the improvement of charge transport capability of the nanofiber, the performance can be converted from EM absorption to shielding, or even coexist. Particularly, as the conductivity rising, the reflection loss declines from - 52.72 to - 10.5 dB, while the EM interference shielding effectiveness increases to 13.4 dB, suggesting the coexistence of the two EM functions. Furthermore, based on the high EM absorption, a strain sensor is designed through the resonance coupling of the patterned NiCo2O4 structure. These strategies for tuning EM performance and constructing devices can be extended to other EM functional materials to promote the development of electromagnetic driven devices.
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Affiliation(s)
- Min Zhang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Chen Han
- 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
| | - Mao-Sheng Cao
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China.
| | - Hui-Jing Yang
- Department of Physics, Tangshan Normal University, Tangshan, 063000, People's Republic of China.
| | - Jie Yuan
- School of Information Engineering, Minzu University of China, Beijing, 100081, People's Republic of China.
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Peymanfar R, Yektaei M, Javanshir S, Selseleh-Zakerin E. Regulating the energy band-gap, UV–Vis light absorption, electrical conductivity, microwave absorption, and electromagnetic shielding effectiveness by modulating doping agent. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122981] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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48
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Zhang H, Zhao Y, Yang X, Zhao G, Zhang D, Huang H, Yang S, Wen N, Javid M, Fan Z, Pan L. A Facile Synthesis of Novel Amorphous TiO 2 Nanorods Decorated rGO Hybrid Composites with Wide Band Microwave Absorption. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2141. [PMID: 33121162 PMCID: PMC7692450 DOI: 10.3390/nano10112141] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 10/21/2020] [Accepted: 10/23/2020] [Indexed: 11/30/2022]
Abstract
Amorphous structures may play important roles in achieving highly efficient microwave absorption performance due to the polarization losses induced by the disorders, vacancies and other functional groups existed in them. Herein, a kind of amorphous TiO2/rGO composite (a-TiO2/rGO) was successfully fabricated via a facile one-step solvothermal method. The complex permittivity of the composites can be regulated by adjusting the addition of precursor solution. The minimum reflection loss of a-TiO2/rGO composites reached -42.8 dB at 8.72 GHz with a thickness of 3.25 mm, and the widest efficient absorption bandwidth (EAB) was up to 6.2 GHz (11.8 to 18 GHz) with a thickness of only 2.15 mm, which achieved the full absorption in Ku band (12 to 18 GHz). Furthermore, the EAB was achieved ranging from 3.97 to 18 GHz by adjusting the thickness of the absorber, covering 87.7% of the whole radar frequency band. It is considered that the well-matched impedance, various polarization processes, capacitor-like structure and conductive networks all contributed to the excellent microwave absorption of a-TiO2/rGO. This study provides reference on constructing amorphous structures for future microwave absorber researches and the as-prepared a-TiO2/rGO composites also have great potential owing to its facile synthesis and highly efficient microwave absorption.
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Affiliation(s)
- Hao Zhang
- School of Physics, Dalian University of Technology, Dalian 116024, China; (H.Z.); (Y.Z.); (D.Z.); (H.H.); (S.Y.); (N.W.); (M.J.); (Z.F.)
| | - Yongpeng Zhao
- School of Physics, Dalian University of Technology, Dalian 116024, China; (H.Z.); (Y.Z.); (D.Z.); (H.H.); (S.Y.); (N.W.); (M.J.); (Z.F.)
- School of Microelectronics, Dalian University of Technology, Dalian 116024, China
| | - Xuan Yang
- School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China;
| | - Guolin Zhao
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China;
| | - Dongmei Zhang
- School of Physics, Dalian University of Technology, Dalian 116024, China; (H.Z.); (Y.Z.); (D.Z.); (H.H.); (S.Y.); (N.W.); (M.J.); (Z.F.)
| | - Hui Huang
- School of Physics, Dalian University of Technology, Dalian 116024, China; (H.Z.); (Y.Z.); (D.Z.); (H.H.); (S.Y.); (N.W.); (M.J.); (Z.F.)
| | - Shuaitao Yang
- School of Physics, Dalian University of Technology, Dalian 116024, China; (H.Z.); (Y.Z.); (D.Z.); (H.H.); (S.Y.); (N.W.); (M.J.); (Z.F.)
| | - Ningxuan Wen
- School of Physics, Dalian University of Technology, Dalian 116024, China; (H.Z.); (Y.Z.); (D.Z.); (H.H.); (S.Y.); (N.W.); (M.J.); (Z.F.)
| | - Muhammad Javid
- School of Physics, Dalian University of Technology, Dalian 116024, China; (H.Z.); (Y.Z.); (D.Z.); (H.H.); (S.Y.); (N.W.); (M.J.); (Z.F.)
| | - Zeng Fan
- School of Physics, Dalian University of Technology, Dalian 116024, China; (H.Z.); (Y.Z.); (D.Z.); (H.H.); (S.Y.); (N.W.); (M.J.); (Z.F.)
| | - Lujun Pan
- School of Physics, Dalian University of Technology, Dalian 116024, China; (H.Z.); (Y.Z.); (D.Z.); (H.H.); (S.Y.); (N.W.); (M.J.); (Z.F.)
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Ding J, Wang L, Zhao Y, Yu X, Xing L, Ding G, Zhang J, Che R. Rutile TiO 2 Nanoparticles Encapsulated in a Zeolitic Imidazolate Framework-Derived Hierarchical Carbon Framework with Engineered Dielectricity as an Excellent Microwave Absorber. ACS APPLIED MATERIALS & INTERFACES 2020; 12:48140-48149. [PMID: 32924413 DOI: 10.1021/acsami.0c12764] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Aiming to solve the poor response of titanium dioxide (TiO2) in the microwave frequency, versatile series of N-doped carbon (NC) components are employed to improve the conductivity and polarization strength of TiO2-based composites. The bimetallic zeolitic imidazolate framework-derived TiO2@NC complex (TNC-3) exhibits hierarchical microstructures and large-scale hetero-interfaces, whereas the pyrolysis composite of metal-polydopamine-coated TiO2 (TNC-4) possesses the vesicle-like NC shell and bulk TiO2 core. Thus, the optimal reflection loss and efficient absorption bandwidth of TNC-3 realize -44.0 dB at 3.0 mm and 5.4 GHz at only 2.0 mm of coating thickness, respectively. Nevertheless, the corresponding attenuation ability of TNC-4 is separately -24.3 dB and 4.8 GHz with a thickness of 5.0 and 2.0 mm, respectively. Importantly, the conduction and polarization loss can be enhanced by the large-scale interfacial contacts between nanoscale rutile nanoparticles and hierarchical graphitized carbon. Meanwhile, the superior performance of TNC-3 stems from the large proportion of pyridinic N and pyrrolic N, which provides asymmetric lone pairs to strengthen the dipole rotation. These results are of great value in constructing semiconductor-based complexes by carbon-coating engineering as functional materials.
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Affiliation(s)
- Jingjun Ding
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P.R. China
| | - Lei Wang
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P.R. China
| | - Yunhao Zhao
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P.R. China
| | - Xuefeng Yu
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P.R. China
| | - Linshen Xing
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P.R. China
| | - Guangzhou Ding
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P.R. China
| | - Jie Zhang
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P.R. China
| | - Renchao Che
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P.R. China
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Chen X, Xu H, Zhang Y, Tao L, Yuan L, Meng F, Huang R, Wang P, Zhou Z. Carbonized polyaniline bridging nanodiamond-graphene hybrids for enhanced microwave absorptions with ultrathin thickness. NANOTECHNOLOGY 2020; 31:415701. [PMID: 32570226 DOI: 10.1088/1361-6528/ab9ed9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
For conventional design of the electromagnetic absorption materials, introduction of magnetic materials into dielectric materials has been found to achieve better impedance matching, but lead to increase in weight and decrease in chemical stability, therefore limiting their practical applications. In this work, metal-free electromagnetic coupling was achieved by the design of nitrogen-doped nanodiamond/graphene hybrids. Polyaniline is used to self-assembled bridge the nanodiamond and graphene, and the carbonization is carried out for construction and regulation of the C•••N polarization and nitrogen doping. The carbonized hybrid exhibits remarkably enhanced broadband electromagnetic absorption with the optimal reflection loss value around -47.7 dB at 13.8 GHz with an ultrathin thickness of 1.8 mm. The enhancement in electromagnetic absorption is confirmed to result from nitrogen doped ND induced magnetic dissipation and the C•••N multi-polarization modes, as well as the multiple interfacial structures. This work opens a new route realizing lightweight electromagnetic absorption through constructing nitrogen doped carbon nanomaterial.
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Affiliation(s)
- Xiangnan Chen
- College of Transportation Engineering, Dalian Maritime University, Dalian 116026, People's Republic of China
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