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Zhao B, Li R, Men Q, Yan Z, Lv H, Wu L, Che R. Transformation of 2D Flakes to 3D Hollow Bowls: Matthew Effect Enables Defects to Prevail in Electromagnetic Wave Absorption of Hollow rGO Bowls. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2208135. [PMID: 37587762 DOI: 10.1002/smll.202208135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 07/26/2023] [Indexed: 08/18/2023]
Abstract
High-efficiency electromagnetic (EM) wave (EMW)-absorbing materials have attracted extensive scientific and technical interest. Although identifying the dominant EM loss mechanism in dielectric-loss materials is indispensable, it is challenging due to a complex synergism between dipole/interfacial polarization and conduction loss. Modulation of defects and microstructures can be a possible approach to determine the dominant EM loss mechanism and realize high-efficiency absorption. Herein, 2D reduced graphene oxide (rGO) flakes are integrated into a 3D hollow bowl-like structure, which increases defect sites (i.e., oxygen vacancy and lattice defect) and reduces the stacked thickness of rGO. Despite their lower stacked thicknesses, the hollow rGO bowls with more defects exhibit lower conductivities but higher permittivities. Accompanied by the transformation from 2D flakes to 3D hollow bowls, the dominant EM loss mechanism of rGO transforms from conduction loss to defect-induced polarization. Furthermore, the defect engineering and structural design endow rGO with well-matched impedance and strong EMW-absorbing capacity. A minimum reflection loss of -41.6 dB (1.3 mm) and an effective absorption bandwidth of 4.8 GHz (1.5 mm) is achieved at a filler loading of 5 wt%. This study will provide meaningful insights into the development of materials with superior EMW-absorbing performances via defect engineering and structural design.
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Affiliation(s)
- Biao Zhao
- School of Microelectronics, Fudan University, Shanghai, 200433, China
| | - Ruosong Li
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Qiaoqiao Men
- Henan Key Laboratory of Aeronautical Materials and Application Technology, School of Material Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan, 450046, China
| | - Zhikai Yan
- Henan Key Laboratory of Aeronautical Materials and Application Technology, School of Material Science and Engineering, Zhengzhou University of Aeronautics, Zhengzhou, Henan, 450046, China
| | - Hualiang Lv
- Institute of Optoelectronics, Fudan University, Shanghai, 200433, China
| | - Le Wu
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Renchao Che
- Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai, 200438, 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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High aspect-ratio sycamore biomass microtube constructed permittivity adjustable ultralight microwave absorbent. J Colloid Interface Sci 2022; 622:719-727. [DOI: 10.1016/j.jcis.2022.04.128] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 04/19/2022] [Accepted: 04/22/2022] [Indexed: 11/19/2022]
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Multifunction lignin-based carbon nanofibers with enhanced electromagnetic wave absorption and surpercapacitive energy storage capabilities. Int J Biol Macromol 2022; 199:201-211. [PMID: 34995658 DOI: 10.1016/j.ijbiomac.2021.12.154] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 12/21/2021] [Accepted: 12/24/2021] [Indexed: 12/28/2022]
Abstract
It is difficult for green sustainable lignin-based materials to simultaneously obtain efficient electromagnetic wave absorption (EMWA) and supercapacitive energy storage (SCES), which has not yet been reported. Herein, the light-weight lignin-based carbon nanofibers (LCNFs) with proper pore size, well graphitization degree, and heteroatom doping were tailored through electrospinning and carbonization processes. Interestingly, the graphitization degree and porous structure of LCNFs could be easily adjusted by changing the activating temperature, and the higher conductivity was achieved for preparing LCNFs at higher activating temperature due to the differences in the crystal size and activating degree of LCNFs. As a result, in the field of EMWA, the LCNFs-950 exhibited the minimum reflection loss (RL) value was -41.4 dB and the absorbing frequency was 9.05 GHz at 2.5 mm thickness, which meant this absorbent could absorb and/or dissipate more than 99.9% of incident electromagnetic wave (EMW). Furthermore, the LCNFs-950 also exhibited excellent SCES ability. In two-electrode system, the optimal LCNFs-950 symmetric supercapacitor specific capacitance reached 139.4 F/g at a current density of 0.5 A/g, meanwhile, the energy density was 41.4 Wh/kg at a power density of 3500 W/Kg. These multifunctional features of LCNFs will be highly promising for the next-generation environmental remediating materials.
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Yang F, Zhang Y, Meng X, Zhang T, Qu G, Wang K, Zhao W, Huang X, Zhong B, Xia L, Wang H. A new precursor to diversify BCN architectures with enhanced electromagnetic wave absorption. NANOTECHNOLOGY 2022; 33:155601. [PMID: 34488196 DOI: 10.1088/1361-6528/ac23f2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 09/06/2021] [Indexed: 06/13/2023]
Abstract
Hexagonal BCN (h-BCN) is considered to be a promising dielectric ceramic material with a hybrid B-C-N structure and an electromagnetic wave (EMW) absorbing material with tenable properties. H-BCN bulk and microtube architectures are simultaneously synthesized by precursor pyrolysis method using BCl3, aniline (AN) and diethylenetriamine (DETA) as the raw material. By analyzing its electromagnetic parameters, the effective absorption bandwidth of the sample cracking at 900 °C with the proportion of raw materials (DETA:AN = 1:1) can be up to 7.2 GHz, and the minimum reflection loss can reach -43.6 dB at 7.92 GHz with a thickness of 3.5 mm. Moreover, the EMW absorbing property of the ceramic can be tuned by adjusting the ratio of monomers, pyrolysis temperature, and cooling rates.
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Affiliation(s)
- Fanfan Yang
- School of Materials Science and Engineering, Harbin Institute of Technology, Weihai 264209, People's Republic of China
| | - Yu Zhang
- School of Materials Science and Engineering, Harbin Institute of Technology, Weihai 264209, People's Republic of China
| | - Xiaohuan Meng
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, People's Republic of China
| | - Tao Zhang
- School of Materials Science and Engineering, Harbin Institute of Technology, Weihai 264209, People's Republic of China
| | - Ge Qu
- School of Materials Science and Engineering, Harbin Institute of Technology, Weihai 264209, People's Republic of China
| | - Kun Wang
- School of Materials Science and Engineering, Harbin Institute of Technology, Weihai 264209, People's Republic of China
| | - Wei Zhao
- School of Materials Science and Engineering, Harbin Institute of Technology, Weihai 264209, People's Republic of China
| | - Xiaoxiao Huang
- School of Marine Science and Technology, Harbin Institute of Technology, Weihai 264209, People's Republic of China
| | - Bo Zhong
- School of Materials Science and Engineering, Harbin Institute of Technology, Weihai 264209, People's Republic of China
| | - Long Xia
- School of Materials Science and Engineering, Harbin Institute of Technology, Weihai 264209, People's Republic of China
| | - Huatao Wang
- School of Materials Science and Engineering, Harbin Institute of Technology, Weihai 264209, People's Republic of China
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Sedighi A, Taheri RA, Montazer M. High-Performance Electromagnetic Interference Shielding Electrodes/Substrates for Wearable Electronics. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02141] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Ali Sedighi
- Graphene and Advanced Materials Laboratory (Gamlab), Advanced Materials and Processes Institute, Amirkabir University of Technology, Tehran 1591634311, Iran
| | - Ramezan Ali Taheri
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran 1815944153, Iran
| | - Majid Montazer
- Textile Department, Amirkabir Nanotechnology Research Institute (ANTRI), Amirkabir University of Technology, Tehran 1591634311, Iran
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