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Selseleh-Zakerin E, Mirkhan A, Shafiee M, Alihoseini M, Khani M, Shokri B, Tavassoli SH, Peymanfar R. Plasma Engineering toward Improving the Microwave-Absorbing/Shielding Feature of a Biomass-Derived Material. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:12148-12158. [PMID: 38806445 DOI: 10.1021/acs.langmuir.4c01046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2024]
Abstract
During the past decade, ever-increasing electromagnetic pollution has excited a global concern. A sustainable resource, facile experimental scenario, fascinating reflection loss (RL), and broad efficient bandwidth are the substantial factors that intrigue researchers. This research led to the achievement of a brilliant microwave-absorbing material by treating pampas as biomass. The carbon-based microfibers attained by biowaste were treated by plasma under diverse environments to amplify their microwave-absorbing features. Moreover, a pyrolysis scenario was performed to compare the results. The reductive processes were performed by H2 plasma and carbonization. However, the CO2 plasma was performed to regulate the heteroatoms and defects. Interestingly, polystyrene (PS) was applied as a microwave-absorbing matrix. The aromatic rings existing in the absorbing medium establish electrostatic interactions, elevating interfacial polarization, and physical characteristics of PS augment the practical applications of the final product. The manipulated biomasses were characterized by Raman, X-ray diffraction, energy-dispersive spectroscopy, field emission scanning electron microscopy, and diffuse reflection spectroscopy analyses. Eventually, the microwave-absorbing features were estimated by a vector network analyzer. The plasma-treated pampas under H2/Ar blended with PS gained a maximum RL of -90.65 dB at 8.79 GHz and an efficient bandwidth (RL ≤ -10 dB) of 4.24 GHz with a thickness of 3.20 mm; meanwhile, plasma treatment under CO2 led to a maximum RL of 97.99 dB at 14.92 GHz and an efficient bandwidth of 7.74 GHz with a 2.05 mm thickness. Particularly, the biomass plasmolyzed under Ar covered the entire X and Ku bands with a thickness of 2.10 mm. Notably, total shielding efficiencies of the treated bioinspired materials were up to ≈99%, desirable for practical applications.
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Affiliation(s)
- Elnaz Selseleh-Zakerin
- Department of Chemical Engineering, Energy Institute of Higher Education, Saveh 39177-67746, Iran
- Department of Science, Iranian Society of Philosophers, Tehran 13187-76511, Iran
- Peykareh Enterprise Development Company, Tehran 15149-45511, Iran
| | - Ali Mirkhan
- Department of Science, Iranian Society of Philosophers, Tehran 13187-76511, Iran
- Peykareh Enterprise Development Company, Tehran 15149-45511, Iran
| | - Mojtaba Shafiee
- Laser and Plasma Institute, Shahid Beheshti University, Tehran 19839-69411, Iran
| | | | - Mohammadreza Khani
- Laser and Plasma Institute, Shahid Beheshti University, Tehran 19839-69411, Iran
| | - Babak Shokri
- Laser and Plasma Institute, Shahid Beheshti University, Tehran 19839-69411, Iran
| | | | - Reza Peymanfar
- Department of Chemical Engineering, Energy Institute of Higher Education, Saveh 39177-67746, Iran
- Department of Science, Iranian Society of Philosophers, Tehran 13187-76511, Iran
- Peykareh Enterprise Development Company, Tehran 15149-45511, Iran
- Laser and Plasma Institute, Shahid Beheshti University, Tehran 19839-69411, Iran
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Huang Y, Tian K, Zhang C, Wang J, Shu R, Chen Z, Liu X, Li Y, Xu L. Lightweight and efficient luffa sponge carbon/Co composites with adjustable electromagnetic wave absorption properties. J Colloid Interface Sci 2023; 652:1138-1147. [PMID: 37657214 DOI: 10.1016/j.jcis.2023.08.147] [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: 05/09/2023] [Revised: 08/20/2023] [Accepted: 08/23/2023] [Indexed: 09/03/2023]
Abstract
Biomass material has gained significant popularity due to its potential to meet the requirements of green and sustainable development in modern times. It is widely used in various fields, especially for absorbing electromagnetic waves (EMW). In this study, we used luffa sponge carbon (CLS) as a lightweight and porous carbon source. Through a static reaction and heat treatment process, we successfully loaded coral sheet cobalt onto the surface of CLS to create lightweight and efficient luffa sponge carbon/cobalt (CLS/Co) composites for EMW absorption. We controlled the microstructure and electromagnetic properties of the CLS/Co composites by adjusting the pyrolysis temperature. At 700 °C, the CLS/Co composites showed a minimum reflection loss (RLmin) of -60.81 dB and an effective absorption bandwidth (EAB) of 5.56 GHz at a very thin thickness of 1.68 mm. Moreover, at a pyrolysis temperature of 800 °C, the absorption strength of the CLS/Co composites reached -50 dB at various thicknesses.
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Affiliation(s)
- Yanan Huang
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Konghu Tian
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China; Analysis and Test Center, Anhui University of Science and Technology, Huainan 232001, China.
| | - Chao Zhang
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Jing Wang
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China; Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu 314200, China.
| | - Ruiwen Shu
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China.
| | - Zhihong Chen
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Xiaowei Liu
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Yufei Li
- Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu 314200, China
| | - Lixin Xu
- Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu 314200, China
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Li X, Hu R, Xiong Z, Wang D, Zhang Z, Liu C, Zeng X, Chen D, Che R, Nie X. Metal-Organic Gel Leading to Customized Magnetic-Coupling Engineering in Carbon Aerogels for Excellent Radar Stealth and Thermal Insulation Performances. NANO-MICRO LETTERS 2023; 16:42. [PMID: 38047957 PMCID: PMC10695913 DOI: 10.1007/s40820-023-01255-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/18/2023] [Indexed: 12/05/2023]
Abstract
Metal-organic gel (MOG) derived composites are promising multi-functional materials due to their alterable composition, identifiable chemical homogeneity, tunable shape, and porous structure. Herein, stable metal-organic hydrogels are prepared by regulating the complexation effect, solution polarity and curing speed. Meanwhile, collagen peptide is used to facilitate the fabrication of a porous aerogel with excellent physical properties as well as the homogeneous dispersion of magnetic particles during calcination. Subsequently, two kinds of heterometallic magnetic coupling systems are obtained through the application of Kirkendall effect. FeCo/nitrogen-doped carbon (NC) aerogel demonstrates an ultra-strong microwave absorption of - 85 dB at an ultra-low loading of 5%. After reducing the time taken by atom shifting, a FeCo/Fe3O4/NC aerogel containing virus-shaped particles is obtained, which achieves an ultra-broad absorption of 7.44 GHz at an ultra-thin thickness of 1.59 mm due to the coupling effect offered by dual-soft-magnetic particles. Furthermore, both aerogels show excellent thermal insulation property, and their outstanding radar stealth performances in J-20 aircraft are confirmed by computer simulation technology. The formation mechanism of MOG is also discussed along with the thermal insulation and electromagnetic wave absorption mechanism of the aerogels, which will enable the development and application of novel and lightweight stealth coatings.
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Affiliation(s)
- Xin Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
- School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Ruizhe Hu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
- School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Zhiqiang Xiong
- School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Dan Wang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
- School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Zhixia Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
- School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Chongbo Liu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China.
- School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China.
| | - Xiaojun Zeng
- School of Materials Science and Engineering, Jingdezhen Ceramic University, Jingdezhen, 333403, People's Republic of China
| | - Dezhi Chen
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
- School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Renchao Che
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, People's Republic of China.
| | - Xuliang Nie
- College of Chemistry and Materials, Jiangxi Agricultural University, Nanchang, 330045, People's Republic of China.
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Cui R, Li Y, Huang Y, Wang W, Wan C. Dielectric Matching by the Unique Dynamic Dipoles in Hybrid Organic/Inorganic Superlattices toward Ultrathin Microwave Absorber. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303008. [PMID: 37485638 DOI: 10.1002/smll.202303008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/12/2023] [Indexed: 07/25/2023]
Abstract
There is an urgent demand of ultrathin high-performance microwave absorbing materials (MAMs) in the electromagnetic protection field. However, minimizing thickness is challenging mainly due to dielectric mismatch at high permittivity from excessive dielectric loss, leading to strong reflection at 2-18 GHz. Here, a hybrid TaS2 /Co(Cp)2 superlattice is fabricated with alternating [TaS2 ] inorganic layers and [Co(Cp)2 ] organic layers. Dynamic Ta─Co dipoles offer a unique interfacial polarization relaxation mechanism involving the inversion and rotation of dynamic Ta─Co dipoles. The prolonged relaxation time of limited dynamic Ta─Co dipoles contributes to enhanced dielectric matching at high permittivity, which is essential for ultrathin high-performance MAMs. Furthermore, the confinement of paramagnetic Co(Cp)2 molecules in the interlayer space of the diamagnetic TaS2 sublattice triggers unexpected ferromagnetism via interfacial magnetic coupling conducive to the improved microwave-absorbing performance at reduced thickness. Therefore, it presents a 1.271-mm thick ultrathin absorber that can attenuate up to 99.99% of electromagnetic wave energy with a broad effective absorption bandwidth of 4.05 GHz, thus pushing the limits of thickness of 2D-based high-performance MAMs. This paper demonstrates a new strategy toward ultrathin MAMs with tunable and decent electromagnetic loss derived from electrical and magnetic coupling at the atomic scale.
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Affiliation(s)
- Ruopeng Cui
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Yi Li
- College of Mathematics and Physics, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yujia Huang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
- School of Materials Science and Hydrogen Energy, Foshan University, Foshan, 528000, China
| | - Wei Wang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Chunlei Wan
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
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Guo LY, Li JF, Lu ZW, Zhang J, He CT. Biomass-Derived Carbon-Based Multicomponent Integration Catalysts for Electrochemical Water Splitting. CHEMSUSCHEM 2023; 16:e202300214. [PMID: 37148161 DOI: 10.1002/cssc.202300214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/04/2023] [Accepted: 05/04/2023] [Indexed: 05/07/2023]
Abstract
Electrocatalytic water splitting powered by sustainable electricity is a crucial approach for the development of new generation green hydrogen technology. Biomass materials are abundant and renewable, and the application of catalysis can increase the value of some biomass waste and turn waste into fortune. Converting economical and resource-rich biomass into carbon-based multicomponent integrated catalysts (MICs) has been considered as one of the most promising ways to obtain inexpensive, renewable and sustainable electrocatalysts in recent years. In this review, recent advances in biomass-derived carbon-based MICs towards electrocatalytic water splitting are summarized, and the existing issues and key aspects in the development of these electrocatalysts are also discussed and prospected. The application of biomass-derived carbon-based materials will bring some new opportunities in the fields of energy, environment, and catalysis, as well as promote the commercialization of new nanocatalysts in the near future.
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Affiliation(s)
- Lu-Yao Guo
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering and College of Life Science, Jiangxi Normal University, Nanchang, 330022, P. R. China
| | - Jin-Feng Li
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering and College of Life Science, Jiangxi Normal University, Nanchang, 330022, P. R. China
| | - Zi-Wei Lu
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering and College of Life Science, Jiangxi Normal University, Nanchang, 330022, P. R. China
| | - Jia Zhang
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering and College of Life Science, Jiangxi Normal University, Nanchang, 330022, P. R. China
| | - Chun-Ting He
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering and College of Life Science, Jiangxi Normal University, Nanchang, 330022, P. R. China
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6
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Tian K, Huang Y, Wang J, Zhang C, Shu R, Chen Z, Liu X, Li Y, Xu L. Carbon cloth based flexible electromagnetic wave absorbing materials loaded with Co 3O 4 array and tunable electromagnetic wave absorption performance. J Colloid Interface Sci 2023; 649:675-684. [PMID: 37385032 DOI: 10.1016/j.jcis.2023.06.131] [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: 05/10/2023] [Revised: 06/13/2023] [Accepted: 06/18/2023] [Indexed: 07/01/2023]
Abstract
The demand for flexible electromagnetic wave (EMW) absorbing materials has increased, highlighting the importance of designing efficient and adaptable EMW absorbing materials. In this study, flexible Co3O4/carbon cloth (Co3O4/CC) composites with high EMW absorption properties were prepared via a static growth method and annealing process. The composites exhibited remarkable properties, with the minimum reflection loss (RLmin) and maximum effective absorption bandwidth (EAB, RL ≤ -10 dB) of -54.43 dB and 4.54 GHz, respectively. The flexible carbon cloth (CC) substrates exhibited outstanding dielectric loss due to their conductive networks. Moreover, the uniformly and tightly organized Co3O4 arrays on the flexible CC substrate played a crucial role in fine-tuning the impedance matching and facilitating abundant multiple scattering and interface polarization. This study proposes a promising approach to preparing flexible Co3O4/CC composites with a significant reference value for the field of flexible EMW.
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Affiliation(s)
- Konghu Tian
- Analysis and Test Center, Anhui University of Science and Technology, Huainan 232001, China; School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China.
| | - Yanan Huang
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Jing Wang
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China; Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu 314200, China.
| | - Chao Zhang
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China.
| | - Ruiwen Shu
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Zhihong Chen
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Xiaowei Liu
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Yufei Li
- Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu 314200, China
| | - Lixin Xu
- Pinghu Institute of Advanced Materials, Zhejiang University of Technology, Pinghu 314200, China
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Zhao J, Wang H, Chen M, Li Y, Wang Z, Fang C, Liu P. Construct of CoZnO/CSP biomass-derived carbon composites with broad effective absorption bandwidth of 7.2 GHz and excellent microwave absorption performance. J Colloid Interface Sci 2023; 639:160-170. [PMID: 36804789 DOI: 10.1016/j.jcis.2023.02.050] [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: 01/08/2023] [Revised: 02/09/2023] [Accepted: 02/11/2023] [Indexed: 02/17/2023]
Abstract
Biomass-carbon materials have excellent electromagnetic wave attenuation properties, which is one of the essential factors for developing ultra-thin matched-thickness, and high-performance microwave absorption materials. This study reports a two-step procedure consisting of carbonization and subsequent in-situ growth for preparing a wrinkle-like multilayer biomass-derived composites with magnetic Co particles and ZnO particles (CoZnO/C-X). The synergistic effect of a wrinkle-like multilayer structure and Co and ZnO particles, as well as the existence of many heterogeneous interfaces in the composites structure, and efficiently creates multiple scattering and reflections, which gives the composites the strong microwave absorption properties. The minimum reflection loss value (RLmin) of CoZnO/C-X reaches - 54.90 dB with a thickness of 1.8 mm, and the effective absorption bandwidth (lower than - 10 dB) is 7.2 GHz covering from 10.8 GHz to18.0 GHz with matching thickness of 2.0 mm. Furthermore, the reasonable dielectric/magnetic losses, optimized impedance matching and enhanced polarization loss play an indispensable role among improving microwave absorption performance. Thus, this result provides a good potential method for preparation of magnetic particle/metal oxide/biomass-derived carbon microwave absorbing structural materials.
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Affiliation(s)
- Jiarui Zhao
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, PR China
| | - Hao Wang
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, PR China
| | - Meiju Chen
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, PR China
| | - Yan Li
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, PR China
| | - Zhen Wang
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, PR China; China National Silicon Substrate LED Engineering Technology Research Center, Nanchang University, 330096, PR China.
| | - Changqing Fang
- School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, PR China.
| | - Panbo Liu
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, PR China.
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Yan J, Wang Y, Liu W, Liu P, Chen W. Two-Dimensional Metal Organic Framework derived Nitrogen-doped Graphene-like Carbon Nanomesh toward Efficient Electromagnetic Wave Absorption. J Colloid Interface Sci 2023; 643:318-327. [PMID: 37075540 DOI: 10.1016/j.jcis.2023.04.040] [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: 01/20/2023] [Revised: 04/05/2023] [Accepted: 04/11/2023] [Indexed: 04/21/2023]
Abstract
Functional two-dimensional (2D) graphene-like carbon has the potential to be a good electromagnetic wave absorbing material due to its good electronic properties, but the preparation of 2D carbon via metal-organic frameworks (MOFs) derivation method is still a bottleneck. Herein, we fabricated ultrathin nitrogen-doped graphene-like carbon nanomesh (N-GN) via thermal exfoliation of 2D MOF (Zn-ZIF-L) directly. The species of the chloride salt that exfoliated Zn-ZIF-L have an effect on the nitrogen content, graphitization degree, pore size and specific surface area of N-GN. The Zn-ZIF-L derived N-GN exfoliated by KCl and LiCl simultaneously has the optimum reflection loss of -54 dB only with the thickness of 2.1 mm and the filler loading of 3 wt%. The excellent electromagnetic wave absorbing property is attributed to its favorable structure, micro-meso-macropores, N heteroatoms, abundant heterogeneous graphene-like carbon nanomesh interfaces and defects. Our simple and low-cost preparation process facilitates the large-scale production and application for electromagnetic wave absorbing material of functionalized graphene-like carbon.
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Affiliation(s)
- Jing Yan
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China; Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China.
| | - Yan Wang
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China; Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China
| | - Wenjie Liu
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China; Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China
| | - Panbo Liu
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, Ministry of Education, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China.
| | - Weixing Chen
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, China; Engineering Research Center of Light Stabilizers for Polymer Materials, Universities of Shaanxi Province, Xi'an 710021, China.
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Wu M, Wang H, Liang X, Wang D. Optimized electromagnetic wave absorption of α-Fe 2O 3@MoS 2nanocomposites with core-shell structure. NANOTECHNOLOGY 2023; 34:145703. [PMID: 36563351 DOI: 10.1088/1361-6528/acae29] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
Core-shell structures and interfacial polarization are of great significance to meet the diversified requirements of microwave attenuation. Herein,α-Fe2O3@MoS2nanocomposites are fabricated via a simple two-step hydrothermal process, in which MoS2nanosheets as the shell are self-assembled andα-Fe2O3microdrums are used as the core to constitute a special flower-like morphology with core-shell structure. This structure can provide more interface contact to achieve strong interfacial polarization and possibly offer more multiple reflection and scattering of electromagnetic waves. Furthermore, the microwave dissipation performances ofα-Fe2O3@MoS2nanocomposites can be significantly improved through construction of core-shell structure and flower-like morphology, controlling the content ofα-Fe2O3microdrums and adjusting the filler loading ratios. This work proves that the as-synthesized nanocomposites achieve excellent effective absorption bandwidth and outstanding electromagnetic wave absorption capabilities due to their special interfaces, core-shell structures and good impedance matching conditions. Therefore,α-Fe2O3@MoS2nanocomposites are expected to be a novel and desirable candidate for high-performance electromagnetic wave absorbers.
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Affiliation(s)
- Mei Wu
- Hangzhou Dianzi University, Hangzhou, 310018, People's Republic of China
| | - Hongchang Wang
- Hangzhou Dianzi University, Hangzhou, 310018, People's Republic of China
| | - Xiaohui Liang
- Hangzhou Dianzi University, Hangzhou, 310018, People's Republic of China
| | - Dunhui Wang
- Hangzhou Dianzi University, Hangzhou, 310018, People's Republic of China
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10
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Dai B, Qi Y, Song M, Zhang B, Wang N, Dai Y. Facile synthesis of core-shell structured C/Fe3O4 composite fiber electromagnetic wave absorbing materials with multiple loss mechanisms. J Chem Phys 2022; 157:114705. [DOI: 10.1063/5.0121257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The use of heterostructures in electromagnetic wave absorption applications has been limited by the problem of homogeneous dispersion in composites. In this study, three-dimensional (3D) cross-linked electromagnetic wave absorbing composites with carbon nanofiber/Fe3O4 (CNF/Fe3O4) core-shell structure were synthesized by expanding the interface of the heterogeneous structure with Fe3O4 nanocrystals uniformly modified on the surface of carbon nanofiber. The 3D cross-linked structure of the composites contributes to the generation of conductive loss and macroscopic eddy current loss. The heterogeneous interface formed by graphite nanocrystals and amorphous carbon in the carbon nanofiber is identified by high-resolution transmission electron microscopy and Raman spectroscopy as having a strong electromagnetic wave absorption capacity for boundary-type defects. The Fe3O4 nanocrystal particles on the surface of the carbon nanofiber not only have the strong magnetic loss capability of magnetic materials but also form a new heterogeneous interface with the carbon nanofiber surface, which further enhances the interfacial polarization of the composite and improves the electromagnetic wave absorption properties. With the synergistic effects of interfacial polarization, macroscopic and microscopic eddy current losses, conductive losses, and magnetic losses, the electromagnetic wave absorption performance of the composites is further enhanced based on carbon nanofiber. The reflection loss (RL) reaches -51.11dB, -42.99dB and -55.98dB at 9GHz, 12GHz (X-band) and 17GHz (Ku-band) respectively, corresponding to thicknesses of 2.0mm, 1.5mm and 1.0mm. in addition, the widest effective absorption bandwidth (EAB) is 3.3GHz (only 1.09mm).
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Affiliation(s)
| | - Yang Qi
- College of Science, Northeastern University, China
| | | | | | | | - Yuxiang Dai
- School of Materials Science and Engineering, Northeastern University, China
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11
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Wu Y, Zhao Y, Zhou M, Tan S, Peymanfar R, Aslibeiki B, Ji G. Ultrabroad Microwave Absorption Ability and Infrared Stealth Property of Nano-Micro CuS@rGO Lightweight Aerogels. NANO-MICRO LETTERS 2022; 14:171. [PMID: 35987861 PMCID: PMC9392679 DOI: 10.1007/s40820-022-00906-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 07/02/2022] [Indexed: 05/04/2023]
Abstract
Developing ultrabroad radar-infrared compatible stealth materials has turned into a research hotspot, which is still a problem to be solved. Herein, the copper sulfide wrapped by reduced graphene oxide to obtain three-dimensional (3D) porous network composite aerogels (CuS@rGO) were synthesized via thermal reduction ways (hydrothermal, ascorbic acid reduction) and freeze-drying strategy. It was discovered that the phase components (rGO and CuS phases) and micro/nano structure (microporous and nanosheet) were well-modified by modulating the additive amounts of CuS and changing the reduction ways, which resulted in the variation of the pore structure, defects, complex permittivity, microwave absorption, radar cross section (RCS) reduction value and infrared (IR) emissivity. Notably, the obtained CuS@rGO aerogels with a single dielectric loss type can achieve an ultrabroad bandwidth of 8.44 GHz at 2.8 mm with the low filler content of 6 wt% by a hydrothermal method. Besides, the composite aerogel via the ascorbic acid reduction realizes the minimum reflection loss (RLmin) of - 60.3 dB with the lower filler content of 2 wt%. The RCS reduction value can reach 53.3 dB m2, which effectively reduces the probability of the target being detected by the radar detector. Furthermore, the laminated porous architecture and multicomponent endowed composite aerogels with thermal insulation and IR stealth versatility. Thus, this work offers a facile method to design and develop porous rGO-based composite aerogel absorbers with radar-IR compatible stealth.
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Affiliation(s)
- Yue Wu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, People's Republic of China
| | - Yue Zhao
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, People's Republic of China
| | - Ming Zhou
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, People's Republic of China
| | - Shujuan Tan
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, People's Republic of China.
| | - Reza Peymanfar
- Department of Chemical Engineering, Energy Institute of Higher Education, Saveh, Iran
| | - Bagher Aslibeiki
- Faculty of Physics, University of Tabriz, Tabriz, 51666-16471, Iran
| | - Guangbin Ji
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, People's Republic of China.
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Ren S, Yu H, Wang L, Huang Z, Lin T, Huang Y, Yang J, Hong Y, Liu J. State of the Art and Prospects in Metal-Organic Framework-Derived Microwave Absorption Materials. NANO-MICRO LETTERS 2022; 14:68. [PMID: 35217977 PMCID: PMC8881588 DOI: 10.1007/s40820-022-00808-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Accepted: 01/14/2022] [Indexed: 05/12/2023]
Abstract
Microwave has been widely used in many fields, including communication, medical treatment and military industry; however, the corresponding generated radiations have been novel hazardous sources of pollution threating human's daily life. Therefore, designing high-performance microwave absorption materials (MAMs) has become an indispensable requirement. Recently, metal-organic frameworks (MOFs) have been considered as one of the most ideal precursor candidates of MAMs because of their tunable structure, high porosity and large specific surface area. Usually, MOF-derived MAMs exhibit excellent electrical conductivity, good magnetism and sufficient defects and interfaces, providing obvious merits in both impedance matching and microwave loss. In this review, the recent research progresses on MOF-derived MAMs were profoundly reviewed, including the categories of MOFs and MOF composites precursors, design principles, preparation methods and the relationship between mechanisms of microwave absorption and microstructures of MAMs. Finally, the current challenges and prospects for future opportunities of MOF-derived MAMs are also discussed.
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Affiliation(s)
- Shuning Ren
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Haojie Yu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China.
| | - Li Wang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Zhikun Huang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Tengfei Lin
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Yudi Huang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Jian Yang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Yichuan Hong
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
| | - Jinyi Liu
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, People's Republic of China
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