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Xiao J, Wen B, Liu X, Chen Y, Niu J, Yang S, Yuan W, Yu M, Yang G, Ding S. In-situ growth of carbon nanotubes for the modification of wood-derived biomass porous carbon to achieve efficient Low/Mid-Frequency electromagnetic wave absorption. J Colloid Interface Sci 2024; 676:33-44. [PMID: 39018808 DOI: 10.1016/j.jcis.2024.07.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2024] [Revised: 07/07/2024] [Accepted: 07/11/2024] [Indexed: 07/19/2024]
Abstract
Ideal wave-absorbing materials are required to possess the characteristics such as being "broad, lightweight, thin, and strong." Biomass-derived materials for absorbing electromagnetic waves (EMWs) are widely explored due to their low cost, lightweight, environmentally friendly, high specific surface area, and porous structure. In this study, wood was used as the raw material, and N-doped carbon nanotubes were grown in situ in porous carbon derived from wood, loaded with magnetic metal Co nanoparticles through chemical vapor deposition. The Fir@Co@CNT composite material exhibited a three-dimensional conductive electromagnetic network structure and excellent impedance matching, thereby demonstrating excellent wave absorption performance. By controlling the introduction of carbon nanotubes, the roles of polarization loss and conduction loss in the Fir@Co@CNT composite material were precisely regulated. The Fir@Co@CNT 1:5 composite material achieved a minimum reflection loss (RLmin) of -43.03 dB in the low-frequency region and a maximum effective absorption bandwidth (EABmax) of 4.3 GHz (1.5 mm). Meanwhile, the Fir@Co@CNT 1:10 composite material achieved a RLmin of -52 dB with a thickness of only 2.3 mm, along with an EABmax of 4.2 GHz (1.6 mm). Both materials collectively cover the entire C-band, X-band, and Ku-band in terms of EAB. This work introduces a method for regulating polarization loss and conduction loss, showcasing the potential of biomass carbon materials as low-frequency EMW absorption materials for the first time. It also provides a new direction for the development and application of environmentally friendly, lightweight, high-performance wave-absorbing materials.
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Affiliation(s)
- Jiyuan Xiao
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, "Four Joint Subjects One Union" School-Enterprise Joint Research Center for Power Battery Recycling & Circulation Utilization Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Bo Wen
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, "Four Joint Subjects One Union" School-Enterprise Joint Research Center for Power Battery Recycling & Circulation Utilization Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xiaofeng Liu
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, "Four Joint Subjects One Union" School-Enterprise Joint Research Center for Power Battery Recycling & Circulation Utilization Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yi Chen
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, "Four Joint Subjects One Union" School-Enterprise Joint Research Center for Power Battery Recycling & Circulation Utilization Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jiaxi Niu
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, "Four Joint Subjects One Union" School-Enterprise Joint Research Center for Power Battery Recycling & Circulation Utilization Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Sunying Yang
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, "Four Joint Subjects One Union" School-Enterprise Joint Research Center for Power Battery Recycling & Circulation Utilization Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Wei Yuan
- College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Miao Yu
- College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Guorui Yang
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, "Four Joint Subjects One Union" School-Enterprise Joint Research Center for Power Battery Recycling & Circulation Utilization Technology, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Shujiang Ding
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, "Four Joint Subjects One Union" School-Enterprise Joint Research Center for Power Battery Recycling & Circulation Utilization Technology, Xi'an Jiaotong University, Xi'an 710049, China
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Feng Z, Liu C, Li X, Luo G, Zhai N, Hu R, Lin J, Peng J, Peng Y, Che R. Designing Electronic Structures of Multiscale Helical Converters for Tailored Ultrabroad Electromagnetic Absorption. NANO-MICRO LETTERS 2024; 17:20. [PMID: 39325236 PMCID: PMC11448510 DOI: 10.1007/s40820-024-01513-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Accepted: 08/16/2024] [Indexed: 09/27/2024]
Abstract
Atomic-scale doping strategies and structure design play pivotal roles in tailoring the electronic structure and physicochemical property of electromagnetic wave absorption (EMWA) materials. However, the relationship between configuration and electromagnetic (EM) loss mechanism has remained elusive. Herein, drawing inspiration from the DNA transcription process, we report the successful synthesis of novel in situ Mn/N co-doped helical carbon nanotubes with ultrabroad EMWA capability. Theoretical calculation and EM simulation confirm that the orbital coupling and spin polarization of the Mn-N4-C configuration, along with cross polarization generated by the helical structure, endow the helical converters with enhanced EM loss. As a result, HMC-8 demonstrates outstanding EMWA performance, achieving a minimum reflection loss of -63.13 dB at an ultralow thickness of 1.29 mm. Through precise tuning of the graphite domain size, HMC-7 achieves an effective absorption bandwidth (EAB) of 6.08 GHz at 2.02 mm thickness. Furthermore, constructing macroscale gradient metamaterials enables an ultrabroadband EAB of 12.16 GHz at a thickness of only 5.00 mm, with the maximum radar cross section reduction value reaching 36.4 dB m2. This innovative approach not only advances the understanding of metal-nonmetal co-doping but also realizes broadband EMWA, thus contributing to the development of EMWA mechanisms and applications.
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Affiliation(s)
- Zhaobo Feng
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, 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, School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China.
| | - Xin Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Guangsheng Luo
- School of Physics and Materials, Nanchang University, Nanchang, 330031, People's Republic of China
| | - Naixin Zhai
- School of Physics and Materials, Nanchang University, Nanchang, 330031, People's Republic of China
| | - Ruizhe Hu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Jing Lin
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Jinbin Peng
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, School of Environmental and Chemical Engineering, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China
| | - Yuhui Peng
- Key Laboratory of Nondestructive Testing, Ministry of Education, Nanchang Hangkong University, Nanchang, 330063, People's Republic of China.
| | - Renchao Che
- Laboratory of Advanced Materials, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Academy for Engineering and Technology, Fudan University, Shanghai, 200438, People's Republic of China.
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Cui K, Zhang Z, Wang C, Lyu P, Tang X, Xu Y. Modulating the D-π-A Interactions in Metal-Covalent Organic Frameworks for Efficient Electroreduction of CO 2 into Formate. Angew Chem Int Ed Engl 2024; 63:e202407298. [PMID: 38777794 DOI: 10.1002/anie.202407298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 05/22/2024] [Accepted: 05/22/2024] [Indexed: 05/25/2024]
Abstract
Crystalline porous framework materials have attracted tremendous interest in electrocatalytic CO2 reduction owing to their ordered structures and high specific surface areas as well as rich designability, however, still suffer from a lack of accuracy in regulating the binding strength between the catalytic sites and intermediates, which is crucial for optimizing the electrocatalytic activity and expanding the product types. Herein, we report three new kinds of vinylene-linked metal-covalent organic frameworks (TMT-CH3-MCOF, TMP-CH3-MCOF and TMP-MCOF) with continuously tunable D-π-A interactions by adjusting the structure of the monomers at the molecular level for realizing efficient electroreduction of CO2 to formate for the first time. Interestingly, compared with TMT-CH3-MCOF and TMP-MCOF, the TMP-CH3-MCOF exhibited the highest HCOO- Faradaic efficiency (FEHCOO-) of 95.6 % at -1.0 V vs RHE and displayed the FEHCOO- above 90 % at the voltage range of -1.0 to -1.2 V vs. RHE, which is one of the highest among various kinds of reported electrocatalysts. Theoretical calculations further reveal that the catalytic sites in TMP-CH3-MCOF with unique moderate D-π-A interactions have suitable binding ability towards the reaction intermediate, which is beneficial for the formation of *HCOO and desorption of *HCOOH, thus effectively promoting the electroreduction of CO2 to formate.
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Affiliation(s)
- Kai Cui
- MOE Frontiers Science Center for Rare Isotopes, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, Gansu Province, China
- School of Engineering, Westlake University, Hangzhou, 310024, Zhejiang Province, China
| | - Zhao Zhang
- School of Engineering, Westlake University, Hangzhou, 310024, Zhejiang Province, China
| | - Congxu Wang
- School of Engineering, Westlake University, Hangzhou, 310024, Zhejiang Province, China
| | - Pengbo Lyu
- Hunan Provincial Key Laboratory of Thin Film Materials and Devices, School of Material Sciences and Engineering, Xiangtan University, Xiangtan, 411105, Hunan Province, China
| | - Xiaoliang Tang
- MOE Frontiers Science Center for Rare Isotopes, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, Gansu Province, China
| | - Yuxi Xu
- School of Engineering, Westlake University, Hangzhou, 310024, Zhejiang Province, China
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Xu X, Qu H, Wang Y, Wang C, Wu S, Wang C. Serial Nitrogen-Doped Metal/Carbon Composites Derived from Organic Salts for Superior Electromagnetic Wave Absorption and Supercapacitor Electrode. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2405371. [PMID: 39077942 DOI: 10.1002/smll.202405371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Indexed: 07/31/2024]
Abstract
The present study provides a facile one-pot pyrolysis strategy to prepare serial nitrogen-doped (N-doped) metal/carbon composites derived from six types of metal ethylenediaminetetraacetic acid (EDTA-M, M = Co, Cu, Mn, Fe, Mg, and Ca). N-doped Co/C composite integrated carbonaceous with magnetic components to attain dielectric-magnetic double loss mechanisms. The minimum reflection loss and effective absorption bandwidth reached -57.6 dB at 1.75 mm and 4.64 GHz at 1.52 mm, respectively. The electromagnetic simulation further confirms that the dissipation ability increases with the improvement of carbonization temperature. Results show that altering the metal species of precursors can significantly improve the electrochemical performance of the composites using the identical strategy. N-doped Cu/C composite performed a maximum specific capacitance of 2383.3 F g-1 at 0.5 A g-1 -1, and maintained 86.3% cycling stability at 20 A g-1 after 5000 cycles. The energy density of a symmetrical two-electrode configuration achieved 350.13 Wh kg-1 at a power density of 4000.04 W kg-1. Density functional theory calculations indicate that nitrogen dopants cause faster ion transport and stronger adsorption capacity. Moreover, the bifunctionality of other composites types are also systematically characterized.
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Affiliation(s)
- Xiaodan Xu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250061, China
- Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Henghui Qu
- Shandong Hi-speed Materials Technology Development Co., Ltd, Jinan, 250014, China
| | - Yanxiang Wang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250061, China
- Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Chengjuan Wang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250061, China
- Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Simeng Wu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250061, China
- Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
| | - Chengguo Wang
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education), State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250061, China
- Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan, 250061, China
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5
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Liu GH, Wei CY, Huang T, Wang F, Chang JF, Sun Q, Zhang XH. Metal-Catalyzed Carbon Foams Synthesized from Glucose as Highly Efficient Electromagnetic Absorbers. MATERIALS (BASEL, SWITZERLAND) 2024; 17:3488. [PMID: 39063779 PMCID: PMC11278281 DOI: 10.3390/ma17143488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/05/2024] [Accepted: 07/11/2024] [Indexed: 07/28/2024]
Abstract
This paper introduces a novel method for preparing high-performance, metal-containing carbon foam wave-absorbing materials. The process involves foaming glucose through catalysis by transition metals followed by high-temperature pyrolysis. The resulting carbon foam materials exhibit a highly porous structure, which is essential for their wave-absorption properties. Notably, at a thickness of 2.0 mm, the glucose-derived carbon foam composite catalyzed by Fe and Co (GCF-CoFe) achieved a minimum reflection loss (RLmin) of -51.4 dB at 15.11 GHz, along with an effective absorption bandwidth (EAB) of 5.20 GHz, spanning from 12.80 GHz to 18.00 GHz. These impressive performance metrics indicate that this approach offers a promising pathway for developing low-density, efficient carbon foam materials for wave-absorption applications. This advancement has significant implications for fields requiring effective electromagnetic interference (EMI) shielding, stealth technology, and other related applications, potentially leading to more efficient and lightweight solutions.
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Affiliation(s)
- Guan-Hong Liu
- School of Marine Engineering, Jimei University, Xiamen 361021, China (J.-F.C.); (X.-H.Z.)
| | - Chuan-Ying Wei
- School of Marine Engineering, Jimei University, Xiamen 361021, China (J.-F.C.); (X.-H.Z.)
| | - Ting Huang
- Xiamen Branch of the Luoyang Ship Material Research Institute, Xiamen 361021, China
| | - Fei Wang
- School of Marine Engineering, Jimei University, Xiamen 361021, China (J.-F.C.); (X.-H.Z.)
| | - Jiang-Fan Chang
- School of Marine Engineering, Jimei University, Xiamen 361021, China (J.-F.C.); (X.-H.Z.)
- Xiamen Key Laboratory of Marine Corrosion and Smart Protective Materials, Fujian Provincial Key Laboratory of Naval Architecture and Ocean Engineering, Jimei University, Xiamen 361021, China
| | - Qian Sun
- School of Marine Engineering, Jimei University, Xiamen 361021, China (J.-F.C.); (X.-H.Z.)
| | - Xian-Hui Zhang
- School of Marine Engineering, Jimei University, Xiamen 361021, China (J.-F.C.); (X.-H.Z.)
- Xiamen Key Laboratory of Marine Corrosion and Smart Protective Materials, Fujian Provincial Key Laboratory of Naval Architecture and Ocean Engineering, Jimei University, Xiamen 361021, China
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6
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Liu P, Zheng S, He Z, Qu C, Zhang L, Ouyang B, Wu F, Kong J. Optimizing Integrated-Loss Capacities via Asymmetric Electronic Environments for Highly Efficient Electromagnetic Wave Absorption. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403903. [PMID: 38953301 DOI: 10.1002/smll.202403903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 06/12/2024] [Indexed: 07/04/2024]
Abstract
Asymmetric electronic environments based on microscopic-scale perspective have injected infinite vitality in understanding the intrinsic mechanism of polarization loss for electromagnetic (EM) wave absorption, but still exists a significant challenge. Herein, Zn single-atoms (SAs), structural defects, and Co nanoclusters are simultaneously implanted into bimetallic metal-organic framework derivatives via the two-step dual coordination-pyrolysis process. Theoretical simulations and experimental results reveal that the electronic coupling interactions between Zn SAs and structural defects delocalize the symmetric electronic environments and generate additional dipole polarization without sacrificing conduction loss owing to the compensation of carbon nanotubes. Moreover, Co nanoclusters with large nanocurvatures induce a strong interfacial electric field, activate the superiority of heterointerfaces and promote interfacial polarization. Benefiting from the aforementioned merits, the resultant derivatives deliver an optimal reflection loss of -58.9 dB and the effective absorption bandwidth is 5.2 GHz. These findings provide an innovative insight into clarifying the microscopic loss mechanism from the asymmetric electron environments viewpoint and inspire the generalized electronic modulation engineering in optimizing EM wave absorption.
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Affiliation(s)
- Panbo Liu
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, P. R. China
| | - Shuyun Zheng
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, P. R. China
| | - Zizhuang He
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, P. R. China
| | - Chang Qu
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, P. R. China
| | - Leqian Zhang
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, P. R. China
| | - Bo Ouyang
- MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Nanjing University of Science and Technology, Nanjing, 210094, P. R. China
| | - Fan Wu
- School of Science, Tianjin University, Tianjin, 300072, P. R. China
| | - Jie Kong
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, P. R. China
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Zhang J, Chen L, Li X, Cao H, Chen W, Wang X. Regulation Dipole Moments of N-Doped Graphene Coordinated with FePc Toward Highly Efficient Microwave Absorption Performance in C Band. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308459. [PMID: 38348906 DOI: 10.1002/smll.202308459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 01/05/2024] [Indexed: 02/21/2024]
Abstract
The development of composites with highly efficient microwave absorption (MA) performance deeply depends on polarization loss, which can be induced by charge redistribution. Considering the fact that polarization centers can be easily obtained in graphene, herein, iron phthalocyanine (FePc) is used as polarization site to coordinate with nitrogen-doped graphene (FePc/N-rGO) to optimize MA performance comprehensively. The factors influencing MA properties focus on the interaction between FePc and N-rGO, and the change of dipole moments. The density functional theory (DFT) results demonstrated that FePc has strong interaction with N defect sites in graphene. The charge loss for FePc and charge accumulation for N-rGO occurred, leading to great increase of dipole moment, and the increased dipole moment can be acted as a descriptor to evaluate the enhanced polarization loss. Due to high charge redistribution capacity of N defect sites and FePc polarization centers, the FePc/N-rGO showed excellent MA properties in C band, and the minimum reflection loss value can reach -49.3 dB at 5.4 GHz with thickness of 3.8 mm. In addition, the fabric loaded with FePc/N-rGO showed good heat dissipation property. This work opens the door to the development of MA performance bound to polarization site with dipole moment.
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Affiliation(s)
- Jinming Zhang
- College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao, 266071, P. R. China
| | - Lin Chen
- College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao, 266071, P. R. China
| | - Xing Li
- College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao, 266071, P. R. China
| | - Haijie Cao
- College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao, 266071, P. R. China
| | - Wansong Chen
- College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao, 266071, P. R. China
| | - Xiaoxia Wang
- College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao, 266071, P. R. China
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Liu X, Wang J, Zhong J, Meng L, Yun J, Bai J, Wang G, Yan J. Construction of Hierarchical Yolk-Shell Co/N-Dope C@void@C@MoS 2 Composites with Multiple Heterogeneous Interfaces toward Broadband Electromagnetic Wave Absorption. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7415-7429. [PMID: 38303129 DOI: 10.1021/acsami.3c16307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
The synthesis of materials with a multicomponent hierarchical structure is an essential strategy for achieving high-performance electromagnetic wave (EMW) absorption. However, conventional design strategies face challenges in terms of the rational construction of specific architecture. In this study, we employ a combined space-restricted and hierarchical construction strategy to surface-plant MoS2 nanosheets on yolk-shell structural carbon-modified Co-based composites, leading to the development of high-performance Co/NC@void@C@MoS2 absorbers with advanced architecture. The surface-planted MoS2 nanosheets, the Co/NC magnetic yolk, and the dielectric carbon shell work together to enhance the impedance matching characteristics and synergistic loss capabilities in the composites. Experimental results indicate that Co/NC@void@C-700@MoS2 exhibited the best absorption performance with an effective absorption bandwidth of 7.54 GHz (at 2.05 mm) and a minimum reflection loss of -60.88 dB (at 1.85 mm). Furthermore, radar cross-section simulation results demonstrate that Co/NC@void@C-700@MoS2 effectively suppresses the scattering and transmission of EMWs on perfect electric conductor substrates, implying its superior practical application value. This study provides inspiration and experimental basis for designing and optimizing EMW absorption materials with hierarchical yolk-shell architecture.
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Affiliation(s)
- Xiangling Liu
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Jiahao Wang
- School of Information Science and Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Jiahao Zhong
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Lizheng Meng
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Jiangni Yun
- School of Information Science and Technology, Northwest University, Xi'an 710127, People's Republic of China
- Department of Physics, McGill University, Montreal, Quebec H3A 2T8, Canada
| | - Jintao Bai
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Gang Wang
- State Key Laboratory of Photon-Technology in Western China Energy, Institute of Photonics & Photon-Technology, Northwest University, Xi'an 710127, People's Republic of China
| | - Junfeng Yan
- School of Information Science and Technology, Northwest University, Xi'an 710127, People's Republic of China
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9
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Feng H, Hong J, Zhang J, He P, Zhou H, Wang S, Xing H, Li R. Enhanced polarization via Joule heating in wood-derived carbon materials for absorption-dominated EMI shielding. MATERIALS HORIZONS 2024; 11:468-479. [PMID: 37965678 DOI: 10.1039/d3mh01332d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
To cope with sophisticated application scenarios, carbon materials can provide opportunities for integrating multi-functionalities into superior electromagnetic interference (EMI) shielding properties. Nevertheless, carbon materials usually possess high electrical conductivity, which allows them to counteract electromagnetic waves by reflection. Moreover, the identification of factors that dominate the shielding mechanisms has typically been result-oriented, leading to a reliance on a trial-and-error approach for the development of shielding materials. Thus, it is crucial to identify the dominant factors for EMI shielding and elucidate the mechanism underlying the coordination of the balance between reflection and absorption in carbon materials. In this study, we developed a promising and viable approach to create Co@CNTs embedded in carbonized wood (CW) via chemical vapor deposition, producing Co@CNTs/CW foams. The CNTs, densely grown on the CW surface, tightly encapsulated the Co nanoparticles within them. By manipulating the Co content, the defect density and CNT length varied within the Co@CNTs. Through first-principles calculations, these variations substantially influenced the work function, charge density, and dipole moment of the Co@CNTs. Thus, defect-induced and interfacial polarizations were improved, inducing a transformation of the shielding mechanism from reflection to absorption. Regarding the Co@CNTs/CW foams, while high conductivity was essential for achieving satisfactory shielding performance, the enhanced polarization loss dominated the contribution of absorption to the overall shielding effectiveness. Taking advantage of the enhanced polarizations, the Co@CNTs/CW foams exhibited an impressive shielding effectiveness of 42.0 dB, along with an absorptivity of 0.64, which were instrumental in effectively minimizing secondary reflections. Remarkably, these as-prepared foams possessed outstanding hydrophobicity and Joule heating features with a water contact angle of 138° and a saturation temperature of 85.5 °C (2.5 V). Through the stimulation of voltage-driven Joule heating, the absorptivity of Co@CNTs/CW foams can be significantly enhanced to a range of 0.61 to 0.73, irrespective of the Co content. This research would provide a new avenue for designing carbon materials with an absorption-dominated mechanism integrated into EMI shielding performance.
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Affiliation(s)
- Haoyang Feng
- School of Mechatronic Engineering, Shenzhen Polytechnic, Shenzhen, Guangdong 518055, China.
| | - Jianming Hong
- School of Mechatronic Engineering, Shenzhen Polytechnic, Shenzhen, Guangdong 518055, China.
| | - Jiaxiang Zhang
- School of Mechatronic Engineering, Shenzhen Polytechnic, Shenzhen, Guangdong 518055, China.
| | - Pingping He
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi, 710069, China
- Xi'an Key Lab of Green Hydrogen Energy Production, Storage & Application Integration Technology, 710069, China.
| | - Honghai Zhou
- School of Mechatronic Engineering, Shenzhen Polytechnic, Shenzhen, Guangdong 518055, China.
| | - Sai Wang
- School of Mechatronic Engineering, Shenzhen Polytechnic, Shenzhen, Guangdong 518055, China.
| | - Hongna Xing
- School of Physics, Northwest University, Xi'an, Shaanxi, 710069, China
| | - Ruosong Li
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi, 710069, China
- Xi'an Key Lab of Green Hydrogen Energy Production, Storage & Application Integration Technology, 710069, China.
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Zhao Z, Qing Y, Kong L, Xu H, Fan X, Yun J, Zhang L, Wu H. Advancements in Microwave Absorption Motivated by Interdisciplinary Research. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2304182. [PMID: 37870274 DOI: 10.1002/adma.202304182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 09/22/2023] [Indexed: 10/24/2023]
Abstract
Microwave absorption materials (MAMs) are originally developed for military purposes, but have since evolved into versatile materials with promising applications in modern technologies, including household use. Despite significant progress in bench-side research over the past decade, MAMs remain limited in their scope and have yet to be widely adopted. This review explores the history of MAMs from first-generation coatings to second-generation functional absorbers, identifies bottlenecks hindering their maturation. It also presents potential solutions such as exploring broader spatial scales, advanced characterization, introducing liquid media, utilizing novel toolbox (machine learning, ML), and proximity of lab to end-user. Additionally, it meticulously presents compelling applications of MAMs in medicine, mechanics, energy, optics, and sensing, which go beyond absorption efficiency, along with their current development status and prospects. This interdisciplinary research direction differs from previous research which primarily focused on meeting traditional requirements (i.e., thin, lightweight, wide, and strong), and can be defined as the next generation of smart absorbers. Ultimately, the effective utilization of ubiquitous electromagnetic (EM) waves, aided by third-generation MAMs, should be better aligned with future expectations.
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Affiliation(s)
- Zehao Zhao
- MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Yuchang Qing
- School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Luo Kong
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Hailong Xu
- School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Xiaomeng Fan
- School of Material Science and Engineering, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Jijun Yun
- MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Limin Zhang
- MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary, Northwestern Polytechnical University, Xi'an, 710072, China
| | - Hongjing Wu
- MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary, Northwestern Polytechnical University, Xi'an, 710072, China
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Ebrahimzadeh M, Gharaati A, Jangjoo A, Rezazadeh H. Investigation of Electromagnetic Wave Absorption Properties of Ni-Co and MWCNT Nanocomposites. RECENT PATENTS ON NANOTECHNOLOGY 2024; 18:519-526. [PMID: 36411549 DOI: 10.2174/1872210517666221118110054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/15/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND In recent years, severe electromagnetic interference among electronic devices has been caused by the unprecedented growth of communication systems. Therefore, microwave absorbing materials are required to relieve these problems by absorbing the unwanted microwave. In the design of microwave absorbers, magnetic nanomaterials have to be used as fine particles dispersed in an insulating matrix. Besides the intrinsic properties of these materials, the structure and morphology are also crucial to the microwave absorption performance of the composite. In this study, Ni-Co- MWCNT composites were synthesized, and the changes in electric permittivity, magnetic permeability, and reflectance loss of the samples were evaluated at frequencies of 2 to 18 GHz. METHODS Nickel-Cobalt-Multi Wall Carbon Nanotubes (MWCNT) composites were successfully synthesized by the co-precipitation chemical method. The structural, morphological, and magnetic properties of the samples were characterized and investigated by X-ray diffractometer (XRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Vibrating Sample Magnetometer (VSM), and Vector Network Analyzer (VNA). RESULTS The results revealed that the Ni-Co-MWCNT composite has the highest electromagnetic wave absorption rate with a reflectance loss of -70.22 dB at a frequency of 10.12 GHz with a thickness of 1.8 mm. The adequate absorption bandwidth (RL <-10 dB) was 6.9 GHz at the high-frequency region, exhibiting excellent microwave absorbing properties as a good microwave absorber patent. CONCLUSION Based on this study, it can be argued that the Ni-Co-MWCNT composite can be a good candidate for making light absorbers of radar waves at frequencies 2- 18 GHz.
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Affiliation(s)
- Majid Ebrahimzadeh
- Department of Physics, Payame Noor University, Tehran, P.O. Box 19395-3697 Iran
- Department of Physics, Nourabad Mamasani Branch, Islamic Azad University, Nourabad Mamasani, Iran
| | | | - Alireza Jangjoo
- Department of Chemistry, Payame Noor University, Tehran, P.O. Box 19395-3697 Iran
- Center for Advanced Diffusion-Wave and Photoacoustic Technologies, Department of Mechanical and Industrial Engineering, University of Toronto, King's College Road, Toronto, ON, M5S 3G8, Canada
| | - Hamed Rezazadeh
- Department of Physics, Nourabad Mamasani Branch, Islamic Azad University, Nourabad Mamasani, Iran
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12
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Ban Q, Li L, Li Y, Liu H, Zheng Y, Qin Y, Zhang H, Kong J. Polymer self-assembly guided heterogeneous structure engineering towards high-performance low-frequency electromagnetic wave absorption. J Colloid Interface Sci 2023; 650:1434-1445. [PMID: 37481781 DOI: 10.1016/j.jcis.2023.07.054] [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: 04/12/2023] [Revised: 07/01/2023] [Accepted: 07/09/2023] [Indexed: 07/25/2023]
Abstract
Magnetic-dielectric synergy is currently regarded as among the most effective approaches to achieve low-frequency electromagnetic wave absorption (EMA). However, designing and fabricating EMA materials with tunable magnetic-dielectric balance towards high-performance low-frequency EMA remains challenging. Herein, a polymer self-assembly guided heterogeneous structure engineering strategy is proposed to fabricate hierarchical magnetic-dielectric nanocomposite. Polymer assemblies not only can be employed as intermediates to encapsulate metal-organic frameworks and load metal hydroxide, but also that they play a crucial role for the in-situ formation of polycrystalline FeCo/Co composite nanoparticles. As a result, the minimum reflection loss (RLmin) can reach -59.61 dB at 5.4 GHz (4.8 mm) with a 20 wt% filler loading, while the effective absorption bandwidth (EAB, RLmin ≤ -10 dB) is 2.16 GHz, exhibiting excellent low-frequency EMA performance. Systematic investigations demonstrate that hierarchical mesoporous carbon matrix that supports FeCo/Co composite nanoparticles is beneficial for optimizing impedance matching and increasing attenuation capacity. In general, this study opens up new prospects for developing magnetic-dielectric EMA materials using a polymer self-assembly guided heterogeneous structure engineering strategy, which may receive significant attention in future research.
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Affiliation(s)
- Qingfu Ban
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, PR China.
| | - Luwei Li
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, PR China
| | - Yan Li
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, PR China
| | - Huimin Liu
- Shaanxi Key Laboratory of Macromolecular Science and Technology, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - Yaochen Zheng
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, PR China
| | - Yusheng Qin
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, PR China
| | - Hongru Zhang
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, PR China
| | - Jie Kong
- Shaanxi Key Laboratory of Macromolecular Science and Technology, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, PR China.
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13
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Li B, Zhu H, Lv Y, Wang C, Wu S, Zhu S, Zheng Y, Jiang H, Zhang Y, Li Z, Cui Z, Liu X. Metal Ion Coordination Improves Graphite Nitride Carbon Microwave Therapy in Antibacterial and Osteomyelitis Treatment. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303484. [PMID: 37485572 DOI: 10.1002/smll.202303484] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/25/2023] [Indexed: 07/25/2023]
Abstract
The ability to effectively treat deep bacterial infections while promoting osteogenesis is the biggest treatment demand for diseases such as osteomyelitis. Microwave therapy is widely studied due to its remarkable ability to penetrate deep tissue. This paper focuses on the development of a microwave-responsive system, namely, a zinc ion (Zn2+ ) doped graphite carbon nitride (CN) system (BZCN), achieved through two high-temperature burning processes. By subjecting composite materials to microwave irradiation, an impressive 99.81% eradication of Staphylococcus aureus is observed within 15 min. Moreover, this treatment enhances the growth of bone marrow stromal cells. The Zn2+ doping effectively alters the electronic structure of CN, resulting in the generation of a substantial number of free electrons on the material's surface. Under microwave stimulation, sodium ions collide and ionize with the free electrons generated by BZCN, generating a large amount of energy, which reacts with water and oxygen, producing reactive oxygen species. In addition, Zn2+ doping improves the conductivity of CN and increases the number of unsaturated electrons. Under microwave irradiation, polar molecules undergo movement and generate frictional heat. Finally, the released Zn2+ promotes macrophages to polarize toward the M2 phenotype, which is beneficial for tibial repair.
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Affiliation(s)
- Bo Li
- Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Huiping Zhu
- Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Yuelin Lv
- Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Chaofeng Wang
- School of Health Science & Biomedical Engineering, Hebei University of Technology, Xiping Avenue 5340, Beichen District, Tianjin, 300401, P. R. China
| | - Shuilin Wu
- School of Materials Science & Engineering, Peking University, Yi-he-yuan Road 5#, Beijing, 100871, P. R. China
| | - Shengli Zhu
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, P. R. China
| | - Yufeng Zheng
- School of Materials Science & Engineering, Peking University, Yi-he-yuan Road 5#, Beijing, 100871, P. R. China
| | - Hui Jiang
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, P. R. China
| | - Yu Zhang
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, P. R. China
| | - Zhaoyang Li
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, P. R. China
| | - Zhenduo Cui
- School of Materials Science & Engineering, the Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, Yaguan Road 135#, Tianjin, 300072, P. R. China
| | - Xiangmei Liu
- Biomedical Materials Engineering Research Center, Hubei Key Laboratory of Polymer Materials, Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, School of Materials Science & Engineering, State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei University, Wuhan, 430062, P. R. China
- School of Health Science & Biomedical Engineering, Hebei University of Technology, Xiping Avenue 5340, Beichen District, Tianjin, 300401, P. R. China
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14
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Zhou C, Zhang R, Rong Y, Yang Y, Jiang X. Facile Synthesis of Hierarchically Porous Ni-N-C for Efficient CO 2 Electroreduction to CO. ACS APPLIED MATERIALS & INTERFACES 2023; 15:42585-42593. [PMID: 37649346 DOI: 10.1021/acsami.3c08187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
The reasonable design of atomically dispersed Ni-Nx sites in porous carbon nanostructures is an efficient strategy to enhance the electrochemical CO2 reduction reaction (CO2RR) catalytic activity. In this work, atomically dispersed Ni-Nx sites on hierarchically porous carbon catalysts (HP-Ni-NC) were fabricated by a facile NaCl template-assisted pyrolysis method. The catalysts exhibit a large specific surface area and a hierarchical porous structure, facilitating the exposure of numerous active sites and the mass/electron transport during the CO2RR. Consequently, the CO Faradaic efficiency maintained over 90% in a wide potential window on the optimized HP-Ni-NC-2 catalyst. The CO partial current achieved 15.2 mA cm-2 at -0.9 V (vs reversible hydrogen electrode) in a H-cell. Furthermore, the current density can achieve 250 mA cm-2 at a cell voltage of 3.11 V in a membrane electrode assembly electrolyzer, demonstrating great promise for commercial-scale application. This study presents a facile approach to synthesizing hierarchically porous structure single-atom catalysts with superior catalytic performance toward CO2RR.
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Affiliation(s)
- Chong Zhou
- Key Laboratory of Fundamental Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Rui Zhang
- Key Laboratory of Fundamental Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Youwen Rong
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yaoyue Yang
- Key Laboratory of Fundamental Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
| | - Xiaole Jiang
- Key Laboratory of Fundamental Chemistry of the State Ethnic Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China
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15
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Shu J, Cao M, Zhang Y, Cao W. Heterodimensional Structure Switching Multispectral Stealth and Multimedia Interaction Devices. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302361. [PMID: 37431193 PMCID: PMC10502863 DOI: 10.1002/advs.202302361] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/29/2023] [Indexed: 07/12/2023]
Abstract
Lightweight and flexible electronic materials with high energy attenuation hold an unassailable position in electromagnetic stealth and intelligent devices. Among them, emerging heterodimensional structure draws intensive attention in the frontiers of materials, chemistry, and electronics, owing to the unique electronic, magnetic, thermal, and optical properties. Herein, an intrinsic heterodimensional structure consisting of alternating assembly of 0D magnetic clusters and 2D conductive layers is developed, and its macroscopic electromagnetic properties are flexibly designed by customizing the number of oxidative molecular layer deposition (oMLD) cycles. This unique heterodimensional structure features highly ordered spatial distribution, with an achievement of electron-dipole and magnetic-dielectric double synergies, which exhibits the high attenuation of electromagnetic energy (160) and substantial improvement of dielectric loss tangent (≈200%). It can respond to electromagnetic waves of different bands to achieve multispectral stealth, covering visible light, infrared radiation, and gigahertz wave. Importantly, two kinds of ingenious information interaction devices are constructed with heterodimensional structure. The hierarchical antennas allow precise targeting of operating bands (S- to Ku- bands) by oMLD cycles. The strain imaging device with high sensitivity opens a new horizon for visual interaction. This work provides a creative insight for developing advanced micro-nano materials and intelligent devices.
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Affiliation(s)
- Jin‐Cheng Shu
- School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing100081China
| | - Mao‐Sheng Cao
- School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing100081China
| | - Yan‐Lan Zhang
- School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing100081China
| | - Wen‐Qiang Cao
- School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing100081China
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16
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Wang J, Xie Q, Song H, Chen X, Zhang X, Zhao X, Hao Y, Zhang Y, Li H, Li N, Fan K, Wang X. Utilizing nanozymes for combating COVID-19: advancements in diagnostics, treatments, and preventative measures. J Nanobiotechnology 2023; 21:200. [PMID: 37344839 PMCID: PMC10283317 DOI: 10.1186/s12951-023-01945-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 05/29/2023] [Indexed: 06/23/2023] Open
Abstract
The emergence of human severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) poses significant challenges to global public health. Despite the extensive efforts of researchers worldwide, there remains considerable opportunities for improvement in timely diagnosis, specific treatment, and effective vaccines for SARS-CoV-2. This is due, in part, to the large number of asymptomatic carriers, rapid virus mutations, inconsistent confinement policies, untimely diagnosis and limited clear treatment plans. The emerging of nanozymes offers a promising approach for combating SARS-CoV-2 due to their stable physicochemical properties and high surface areas, which enable easier and multiple nano-bio interactions in vivo. Nanozymes inspire the development of sensitive and economic nanosensors for rapid detection, facilitate the development of specific medicines with minimal side effects for targeted therapy, trigger defensive mechanisms in the form of vaccines, and eliminate SARS-CoV-2 in the environment for prevention. In this review, we briefly present the limitations of existing countermeasures against coronavirus disease 2019 (COVID-19). We then reviewed the applications of nanozyme-based platforms in the fields of diagnostics, therapeutics and the prevention in COVID-19. Finally, we propose opportunities and challenges for the further development of nanozyme-based platforms for COVID-19. We expect that our review will provide valuable insights into the new emerging and re-emerging infectious pandemic from the perspective of nanozymes.
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Affiliation(s)
- Jia Wang
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Qingpeng Xie
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Haoyue Song
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Xiaohang Chen
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Xiaoxuan Zhang
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Xiangyu Zhao
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Yujia Hao
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Yuan Zhang
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Huifei Li
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Na Li
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
| | - Kelong Fan
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Protein and Peptide Pharmaceutical, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101 China
| | - Xing Wang
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001 China
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Taiyuan, 030001 China
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17
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Guo Y, Chang Q, Shi Z, Xie J, Yun J, Zhang L, Wu H. Regulating conduction and polarization losses by adjusting bonded N in N-doped Cu/CuO/C composites. J Colloid Interface Sci 2023; 639:444-453. [PMID: 36827910 DOI: 10.1016/j.jcis.2023.02.093] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 02/21/2023]
Abstract
Conduction and polarization losses are the main forms of dielectric loss, and regulating these mechanisms is key to obtaining favorable electromagnetic wave absorption performance. In this study, the conversion of graphite N and pyridine N in Cu-based metal-organic framework (MOF)-derived composites was adopted to modulate conduction and polarization losses by tuning the pyrolysis temperature and Cu salt concentration. The results show that increasing the pyrolysis temperature facilitates the conversion of pyridine N to graphite N, which is beneficial for conduction loss. Moreover, increasing the Cu concentration promotes the transformation of pyridine N to graphite N as well as, and then promotes the reverse conversion of graphite N to pyridine N, which is conducive to defect-induced polarization. The unique layered Cu/CuO/C composite obtained at 700 °C with a moderate Cu content exhibited the optimal performance with an effective absorption bandwidth of 5.5 GHz (11.6 ∼ 17.1 GHz) at an ultra-thin thickness of 1.56 mm. This is owed to its favorable impedance matching, significant conduction loss, and polarization loss (defect-induced polarization and interfacial polarization). This study provides a novel strategy for regulating conduction and polarization losses.
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Affiliation(s)
- Yanlin Guo
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
| | - Qing Chang
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China; College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an University, Yan'an 716000, China
| | - Zhaoxiaohan Shi
- Queen Mary University of London Engineering School, Northwestern Polytechnical University, Xi'an 710072, China
| | - Jiayuan Xie
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
| | - Jijun Yun
- 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.
| | - 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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18
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Shu JC, Zhang YL, Qin Y, Cao MS. Oxidative Molecular Layer Deposition Tailoring Eco-Mimetic Nanoarchitecture to Manipulate Electromagnetic Attenuation and Self-Powered Energy Conversion. NANO-MICRO LETTERS 2023; 15:142. [PMID: 37258997 PMCID: PMC10232706 DOI: 10.1007/s40820-023-01112-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 05/04/2023] [Indexed: 06/02/2023]
Abstract
Advanced electromagnetic devices, as the pillars of the intelligent age, are setting off a grand transformation, redefining the structure of society to present pluralism and diversity. However, the bombardment of electromagnetic radiation on society is also increasingly serious along with the growing popularity of "Big Data". Herein, drawing wisdom and inspiration from nature, an eco-mimetic nanoarchitecture is constructed for the first time, highly integrating the advantages of multiple components and structures to exhibit excellent electromagnetic response. Its electromagnetic properties and internal energy conversion can be flexibly regulated by tailoring microstructure with oxidative molecular layer deposition (oMLD), providing a new cognition to frequency-selective microwave absorption. The optimal reflection loss reaches ≈ - 58 dB, and the absorption frequency can be shifted from high frequency to low frequency by increasing the number of oMLD cycles. Meanwhile, a novel electromagnetic absorption surface is designed to enable ultra-wideband absorption, covering almost the entire K and Ka bands. More importantly, an ingenious self-powered device is constructed using the eco-mimetic nanoarchitecture, which can convert electromagnetic radiation into electric energy for recycling. This work offers a new insight into electromagnetic protection and waste energy recycling, presenting a broad application prospect in radar stealth, information communication, aerospace engineering, etc.
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Affiliation(s)
- Jin-Cheng Shu
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Yan-Lan Zhang
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Yong Qin
- Institute of Coal Chemistry, State Key Laboratory of Coal Conversion, Chinese Academy of Sciences, 27 Taoyuan South Rd, Taiyuan, 030001, Shanxi, 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.
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19
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Li B, Ma Z, Xu J, Zhang X, Chen Y, Zhu C. Regulation of Impedance Matching and Dielectric Loss Properties of N-Doped Carbon Hollow Nanospheres Modified With Atomically Dispersed Cobalt Sites for Microwave Energy Attenuation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2301226. [PMID: 36974608 DOI: 10.1002/smll.202301226] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/08/2023] [Indexed: 06/18/2023]
Abstract
The rational design of lightweight, broad-band, and high-performance microwave absorbers is urgently required for addressing electromagnetic pollution issue. Metal single atoms (M-SAs) absorbers receive considerable interest in the field of microwave absorption due to the unique electronic structures of M-SAs. However, the simultaneous engineering of the morphology and electronic structure of M-SAs based absorbers remains challenging. Herein, a template-assisted method is utilized to fabricate isolated Co-SAs on N-doped hollow carbon spheres (NHCS@Co-SAs) for high-performance microwave absorption. The combination of atomically dispersed Co sites and hollow supports endows NHCS@Co-SAs with excellent microwave absorption properties. Typically, at an ultralow filler content of 8 wt%, the minimum reflection loss and effective absorption bandwidth of the NHCS@Co-SAs are up to -44.96 dB and 5.25 GHz, respectively, while the absorbing thickness is only 2 mm. Theoretical calculations and experimental results indicate that the impedance matching characteristic and dielectric loss of the NHCSs can be tuned via the introduction of M-SAs, which are responsible for the excellent microwave absorption properties of NHCS@Co-SAs. This work provides an atomic-level insight into the relationship between the electronic states of absorbers and their microwave absorption properties for developing advanced microwave absorbers.
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Affiliation(s)
- Bei Li
- Key Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Ziqian Ma
- Key Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Jia Xu
- Key Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Xiao Zhang
- Key Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Yujin Chen
- Key Laboratory of In-Fiber Integrated Optics, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin, 150001, China
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Chunling Zhu
- College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
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20
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Gan F, Rao Q, Deng J, Cheng L, Zhong Y, Lu Z, Wang F, Wang J, Zhou H, Rao G. Controllable Architecture of ZnO/FeNi Composites Derived from Trimetallic ZnFeNi Layered Double Hydroxides for High-Performance Electromagnetic Wave Absorbers. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300257. [PMID: 36967536 DOI: 10.1002/smll.202300257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/22/2023] [Indexed: 06/18/2023]
Abstract
The optimization design of micro-structure and composition is an important strategy to obtain high-performance metal-based electromagnetic (EM) wave absorption materials. In this work, ZnO/FeNi composites derived from ZnFeNi layered double hydroxides are prepared by a one-step hydrothermal method and subsequent pyrolysis process, and can be employed as an effective alternative for high-performance EM wave absorber. A series of ZnO/FeNi composites with different structures are obtained by varying the molar ratios of Zn2+ /Fe3+ /Ni2+ , and the ZnO/FeNi composites with a Zn2+ /Fe3+ /Ni2+ molar ratio of 6:1:3 show a hierarchical flower-like structure. Owing to the strong synergistic loss mechanism of dielectric-magnetic components and favorable structural features, this hierarchical flower-like ZnO/FeNi sample supplies the optimal EM wave absorption performance with the highest reflection loss of -52.08 dB and the widest effective absorption bandwidth of 6.56 GHz. The EM simulation further demonstrates that impedance matching plays a determining role in EM wave absorption performance. This work provides a new way for the fabrication of a high-performance metal-based EM wave absorber.
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Affiliation(s)
- Fangyu Gan
- School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, P. R. China
| | - Qingrong Rao
- School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, P. R. China
| | - Jianqiu Deng
- School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, P. R. China
| | - Lichun Cheng
- School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, P. R. China
| | - Yan Zhong
- School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, P. R. China
| | - Zhao Lu
- School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, P. R. China
| | - Feng Wang
- School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, P. R. China
| | - Jiang Wang
- School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, P. R. China
| | - Huaiying Zhou
- School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, P. R. China
| | - Guanghui Rao
- School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, P. R. China
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21
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Wen B, Yang G, Zhou X, Ding S. Intelligent diffusion regulation induced in-situ growth of cobalt nanoclusters on carbon nanotubes for excellent electromagnetic wave absorption. J Colloid Interface Sci 2023; 634:74-85. [PMID: 36535171 DOI: 10.1016/j.jcis.2022.12.060] [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: 10/17/2022] [Revised: 11/26/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
To achieve strong electromagnetic wave absorption performance at thin thicknesses, a chemical vapor deposition approach was employed to prepare Co nanoclusters modified carbon nanotubes. The main mechanism lies in the formation of dispersed oxides on the basis of low melting point and decomposition temperature of cobalt nitrate hexahydrate, while solid oxides are not easy to agglomerate during reduction due to their poor diffusion properties. Additionally, the abundant nitrogen-doped on carbon nanotubes provides abundant metal deposition sites, which further inhibits metal agglomeration. As expected, the reflection loss was robust at -59.96 dB with a low filler loading of 10 wt%, and the bandwidth was broad at 5.4GHz. Several factors contribute to excellent electromagnetic wave absorption, such as multiple reflections and scattering in the internal space, dipole polarization loss induced by plenty of functional groups, and interfacial polarization loss at the interfaces between Co nanoclusters and carbon nanotubes.
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Affiliation(s)
- Bo Wen
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, "Four Joint Subjects One Union" School-Enterprise Joint Research Center for Power Battery Recycling & Circulation Utilization Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Guorui Yang
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, "Four Joint Subjects One Union" School-Enterprise Joint Research Center for Power Battery Recycling & Circulation Utilization Technology, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Xinyu Zhou
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, "Four Joint Subjects One Union" School-Enterprise Joint Research Center for Power Battery Recycling & Circulation Utilization Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Shujiang Ding
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, "Four Joint Subjects One Union" School-Enterprise Joint Research Center for Power Battery Recycling & Circulation Utilization Technology, Xi'an Jiaotong University, Xi'an 710049, China.
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22
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Zhou C, Sun QM, Cao Q, He JH, Lu JM. Synergistic Effect of Fe Single-Atom Catalyst for Highly Efficient Microwave-Stimulated Remediation of Chloramphenicol-Contaminated Soil. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205341. [PMID: 36399645 DOI: 10.1002/smll.202205341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Chloramphenicol (CAP) has long been used extensively in agriculture and is severely toxic to the biological environment. Microwave catalysis appears a promising method for soil remediation due to its fast and effective heat transfer, but it is challenging to prepare catalysts with good electromagnetic wave absorption and robust catalytic activity. In this study, atomically dispersed Fe on three-dimensional N-doped carbon supports (3D Fe-NC) is firstly used for microwave remediation of soil. Thanks to the synergistic effect of microwave "hot spots" and reactive oxygen species (•OH, •O2 - ), 3D Fe-NC can completely remove 99.9% of CAP in 5 min. The removal rate constant is nearly twice that of commercial activated carbon. Significantly, the germination rate of lettuce seeds in microwave-repaired soil contaminated by CAP reaches 70%. This work demonstrates the application of Fe single-atom catalyst in microwave remediation of contaminated soil, providing a novel insight for agricultural soil remediation.
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Affiliation(s)
- Chang Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Qi-Meng Sun
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Qiang Cao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Jing-Hui He
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
| | - Jian-Mei Lu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology, National United Engineering Laboratory of Functionalized Environmental Adsorption Materials, Soochow University, Suzhou, 215123, P. R. China
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23
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Wu C, Wang J, Zhang X, Kang L, Cao X, Zhang Y, Niu Y, Yu Y, Fu H, Shen Z, Wu K, Yong Z, Zou J, Wang B, Chen Z, Yang Z, Li Q. Hollow Gradient-Structured Iron-Anchored Carbon Nanospheres for Enhanced Electromagnetic Wave Absorption. NANO-MICRO LETTERS 2022; 15:7. [PMID: 36472674 PMCID: PMC9727008 DOI: 10.1007/s40820-022-00963-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 10/03/2022] [Indexed: 06/02/2023]
Abstract
Highlights Microwave absorber with nanoscale gradient structure was proposed for enhancing the electromagnetic absorption performance. Outstanding reflection loss value (−62.7 dB), broadband wave absorption (6.4 dB with only 2.1 mm thickness) in combination with flexible adjustment abilities were acquired, which is superior to other relative graded distribution structures. This strategy initiates a new method for designing and controlling wave absorber with excellent impedance matching property in practical applications. Abstract In the present paper, a microwave absorber with nanoscale gradient structure was proposed for enhancing the electromagnetic absorption performance. The inorganic–organic competitive coating strategy was employed, which can effectively adjust the thermodynamic and kinetic reactions of iron ions during the solvothermal process. As a result, Fe nanoparticles can be gradually decreased from the inner side to the surface across the hollow carbon shell. The results reveal that it offers an outstanding reflection loss value in combination with broadband wave absorption and flexible adjustment ability, which is superior to other relative graded distribution structures and satisfied with the requirements of lightweight equipment. In addition, this work elucidates the intrinsic microwave regulation mechanism of the multiscale hybrid electromagnetic wave absorber. The excellent impedance matching and moderate dielectric parameters are exhibited to be the dominative factors for the promotion of microwave absorption performance of the optimized materials. This strategy to prepare gradient-distributed microwave absorbing materials initiates a new way for designing and fabricating wave absorber with excellent impedance matching property in practical applications. Supplementary Information The online version contains supplementary material available at 10.1007/s40820-022-00963-w.
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Affiliation(s)
- Cao Wu
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Jing Wang
- School of Science, Nanchang Institute of Technology, Nanchang, 330099, Jiangxi, People's Republic of China
- Division of Nanomaterials and Jiangxi Key Lab of Carbonene Materials, Jiangxi Institute of Nanotechnology, Nanchang, 330200, Jiangxi, People's Republic of China
| | - Xiaohang Zhang
- School of Science, Nanchang Institute of Technology, Nanchang, 330099, Jiangxi, People's Republic of China
| | - Lixing Kang
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, Jiangsu, People's Republic of China.
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, Anhui, People's Republic of China.
| | - Xun Cao
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Yongyi Zhang
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, Jiangsu, People's Republic of China.
- Division of Nanomaterials and Jiangxi Key Lab of Carbonene Materials, Jiangxi Institute of Nanotechnology, Nanchang, 330200, Jiangxi, People's Republic of China.
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, Anhui, People's Republic of China.
| | - Yutao Niu
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, Jiangsu, People's Republic of China
- Division of Nanomaterials and Jiangxi Key Lab of Carbonene Materials, Jiangxi Institute of Nanotechnology, Nanchang, 330200, Jiangxi, People's Republic of China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, Anhui, People's Republic of China
| | - Yingying Yu
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, Jiangsu, People's Republic of China
- College of Safety Science and Engineering, Xi'an University of Science and Technology, Xi'an, 710054, People's Republic of China
| | - Huili Fu
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, Jiangsu, People's Republic of China
- Division of Nanomaterials and Jiangxi Key Lab of Carbonene Materials, Jiangxi Institute of Nanotechnology, Nanchang, 330200, Jiangxi, People's Republic of China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, Anhui, People's Republic of China
| | - Zongjie Shen
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, Jiangsu, People's Republic of China
| | - Kunjie Wu
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, Jiangsu, People's Republic of China
- Division of Nanomaterials and Jiangxi Key Lab of Carbonene Materials, Jiangxi Institute of Nanotechnology, Nanchang, 330200, Jiangxi, People's Republic of China
| | - Zhenzhong Yong
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, Jiangsu, People's Republic of China
- Division of Nanomaterials and Jiangxi Key Lab of Carbonene Materials, Jiangxi Institute of Nanotechnology, Nanchang, 330200, Jiangxi, People's Republic of China
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, Anhui, People's Republic of China
| | - Jingyun Zou
- Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Physical Science and Technology, Suzhou University of Science and Technology, Suzhou, 215009, People's Republic of China
| | - Bin Wang
- Division of Nanomaterials and Jiangxi Key Lab of Carbonene Materials, Jiangxi Institute of Nanotechnology, Nanchang, 330200, Jiangxi, People's Republic of China
| | - Zhou Chen
- School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing, 211800, People's Republic of China
| | - Zhengpeng Yang
- Henan Key Laboratory of Materials On Deep-Earth Engineering, School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, 454003, People's Republic of China
| | - Qingwen Li
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Advanced Materials Division, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, 215123, Jiangsu, People's Republic of China.
- School of Nano-Tech and Nano-Bionics, University of Science and Technology of China, Hefei, 230026, Anhui, People's Republic of China.
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24
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Du Q, Men Q, Li R, Cheng Y, Zhao B, Che R. Electrostatic Adsorption Enables Layer Stacking Thickness-Dependent Hollow Ti 3 C 2 T x MXene Bowls for Superior Electromagnetic Wave Absorption. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203609. [PMID: 36251790 DOI: 10.1002/smll.202203609] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Although transition metal carbides/carbonitrides (MXenes) exhibit immense potential for electromagnetic wave (EMW) absorption, their absorbing ability is hindered by facile stacking and high permittivity. Layer stacking and geometric structures are expected to significantly affect the conductivity and permittivity of MXenes. However, it is still a formidable task to simultaneously regulate layer stacking and microstructure of MXenes to realize high-performance EMW absorption. Herein, a simple and viable strategy using electrostatic adsorption is developed to integrate 2D Ti3 C2 Tx MXene nanosheets into 3D hollow bowl-like structures with tunable layer stacking thickness. Density functional theory calculations indicate an increase in the density of states of the d orbital from the Ti atom near the Fermi level and the generation of additional electrical dipoles in the MXene nanosheets constituting the bowl walls upon reducing the layer stacking thickness. The hollow MXene bowls exhibit a minimum reflection loss (RLmin ) of -53.8 dB at 1.8 mm. The specific absorbing performance, defined as RLmin (dB)/thickness (mm)/filler loading (wt%), exceeds 598 dB mm-1 , far surpassing that of the most current MXene and bowl-like materials reported in the literature. This work can guide future exploration on designing high-performance MXenes with "lightweight" and "thinness" characteristics for superior EMW absorption.
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Affiliation(s)
- Qinrui Du
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi, 710069, P. R. 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, P. R. China
| | - Ruosong Li
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi, 710069, P. R. China
| | - Youwei Cheng
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027, P. R. China
| | - Biao Zhao
- School of Microelectronics, Fudan University, Shanghai, 200433, P. R. China
| | - Renchao Che
- Laboratory of Advanced Materials, Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai, 200438, P. R. China
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25
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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: 62] [Impact Index Per Article: 31.0] [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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26
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Zhang M, Ling H, Wang T, Jiang Y, Song G, Zhao W, Zhao L, Cheng T, Xie Y, Guo Y, Zhao W, Yuan L, Meng A, Li Z. An Equivalent Substitute Strategy for Constructing 3D Ordered Porous Carbon Foams and Their Electromagnetic Attenuation Mechanism. NANO-MICRO LETTERS 2022; 14:157. [PMID: 35916976 PMCID: PMC9346049 DOI: 10.1007/s40820-022-00900-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 07/03/2022] [Indexed: 06/09/2023]
Abstract
Three-dimensional (3D) ordered porous carbon is generally believed to be a promising electromagnetic wave (EMW) absorbing material. However, most research works targeted performance improvement of 3D ordered porous carbon, and the specific attenuation mechanism is still ambiguous. Therefore, in this work, a novel ultra-light egg-derived porous carbon foam (EDCF) structure has been successfully constructed by a simple carbonization combined with the silica microsphere template-etching process. Based on an equivalent substitute strategy, the influence of pore volume and specific surface area on the electromagnetic parameters and EMW absorption properties of the EDCF products was confirmed respectively by adjusting the addition content and diameter of silica microspheres. As a primary attenuation mode, the dielectric loss originates from the comprehensive effect of conduction loss and polarization loss in S-band and C band, and the value is dominated by polarization loss in X band and Ku band, which is obviously greater than that of conduction loss. Furthermore, in all samples, the largest effective absorption bandwidth of EDCF-3 is 7.12 GHz under the thickness of 2.13 mm with the filling content of approximately 5 wt%, covering the whole Ku band. Meanwhile, the EDCF-7 sample with optimized pore volume and specific surface area achieves minimum reflection loss (RLmin) of - 58.08 dB at 16.86 GHz while the thickness is 1.27 mm. The outstanding research results not only provide a novel insight into enhancement of EMW absorption properties but also clarify the dominant dissipation mechanism for the porous carbon-based absorber from the perspective of objective experiments.
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Affiliation(s)
- Meng Zhang
- College of Materials Science and Engineering, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, People's Republic of China
| | - Hailong Ling
- College of Materials Science and Engineering, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, People's Republic of China
| | - Ting Wang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, College of Chemical Engineering in Gaomi Campus, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China
| | - Yingjing Jiang
- College of Materials Science and Engineering, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, People's Republic of China
| | - Guanying Song
- College of Materials Science and Engineering, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, People's Republic of China
| | - Wen Zhao
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, College of Chemical Engineering in Gaomi Campus, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China
| | - Laibin Zhao
- College of Materials Science and Engineering, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, People's Republic of China
| | - Tingting Cheng
- College of Materials Science and Engineering, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, People's Republic of China
| | - Yuxin Xie
- College of Materials Science and Engineering, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, People's Republic of China
| | - Yuying Guo
- College of Materials Science and Engineering, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, People's Republic of China
| | - Wenxin Zhao
- College of Materials Science and Engineering, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, People's Republic of China
| | - Liying Yuan
- College of Materials Science and Engineering, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, People's Republic of China
| | - Alan Meng
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemistry and Molecular Engineering, College of Chemical Engineering in Gaomi Campus, Qingdao University of Science and Technology, Qingdao, 266042, People's Republic of China
| | - Zhenjiang Li
- College of Materials Science and Engineering, College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao, 266061, People's Republic of China.
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27
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Chand K, Zhang X, Chen Y. Recent Progress in MXene and Graphene based Nanocomposites for Microwave Absorption and EMI Shielding. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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28
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Wang ZY, Luo FY, Li J, Wang N, Li XN, Li XJ. Heterostructure catalyst of Cu-Y2O3 supported on Cu2Y2O5 perovskite in solar-driven water gas shift reaction. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04767-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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29
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Li M, Zhu W, Li X, Xu H, Fan X, Wu H, Ye F, Xue J, Li X, Cheng L, Zhang L. Ti 3 C 2 T x /MoS 2 Self-Rolling Rod-Based Foam Boosts Interfacial Polarization for Electromagnetic Wave Absorption. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201118. [PMID: 35481671 PMCID: PMC9165497 DOI: 10.1002/advs.202201118] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/15/2022] [Indexed: 05/19/2023]
Abstract
Heterogeneous interface design to boost interfacial polarization has become a feasible way to realize high electromagnetic wave absorbing (EMA) performance of dielectric materials. However, interfacial polarization in simple structures such as particles, rods, and flakes is weak and usually plays a secondary role. In order to enhance the interfacial polarization and simultaneously reduce the electronic conductivity to avoid reflection of electromagnetic wave, a more rational geometric structure for dielectric materials is desired. Herein, a Ti3 C2 Tx /MoS2 self-rolling rod-based foam is proposed to realize excellent interfacial polarization and achieve high EMA performance at ultralow density. Different surface tensions of Ti3 C2 Tx and ammonium tetrathiomolybdate are utilized to induce the self-rolling of Ti3 C2 Tx sheets. The rods with a high aspect ratio not only remarkably improve the polarization loss but also are beneficial to the construction of Ti3 C2 Tx /MoS2 foam, leading to enhanced EMA capability. As a result, the effective absorption bandwidth of Ti3 C2 Tx /MoS2 foam covers the whole X band (8.2-12.4 GHz) with a density of only 0.009 g cm-3 , at a thickness of 3.3 mm. The advantages of rod structures are verified through simulations in the CST microwave studio. This work inspires the rational geometric design of micro/nanostructures for new-generation EMA materials.
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Affiliation(s)
- Minghang Li
- Science and Technology on Thermostructural Composite Materials LaboratoryNorthwestern Polytechnical UniversityXi'an710072P. R. China
| | - Wenjie Zhu
- Science and Technology on Thermostructural Composite Materials LaboratoryNorthwestern Polytechnical UniversityXi'an710072P. R. China
| | - Xin Li
- Science and Technology on Thermostructural Composite Materials LaboratoryNorthwestern Polytechnical UniversityXi'an710072P. R. China
| | - Hailong Xu
- Institute of Textiles and ClothingThe Hong Kong Polytechnic UniversityHong Kong SAR999077P. R. China
| | - Xiaomeng Fan
- Science and Technology on Thermostructural Composite Materials LaboratoryNorthwestern Polytechnical UniversityXi'an710072P. R. China
| | - Hongjing Wu
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary School of Physical Science and TechnologyNorthwestern Polytechnical UniversityXi'an710072P. R. China
| | - Fang Ye
- Science and Technology on Thermostructural Composite Materials LaboratoryNorthwestern Polytechnical UniversityXi'an710072P. R. China
| | - Jimei Xue
- Science and Technology on Thermostructural Composite Materials LaboratoryNorthwestern Polytechnical UniversityXi'an710072P. R. China
| | - Xiaoqiang Li
- Science and Technology on Thermostructural Composite Materials LaboratoryNorthwestern Polytechnical UniversityXi'an710072P. R. China
| | - Laifei Cheng
- Science and Technology on Thermostructural Composite Materials LaboratoryNorthwestern Polytechnical UniversityXi'an710072P. R. China
| | - Litong Zhang
- Science and Technology on Thermostructural Composite Materials LaboratoryNorthwestern Polytechnical UniversityXi'an710072P. R. China
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30
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Cu-Y2O3 Catalyst Derived from Cu2Y2O5 Perovskite for Water Gas Shift Reaction: The Effect of Reduction Temperature. Catalysts 2022. [DOI: 10.3390/catal12050481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Cu2Y2O5 perovskite was reduced at different temperatures under H2 atmosphere to prepare two Cu-Y2O3 catalysts. The results of the activity test indicated that the Cu-Y2O3 catalyst after H2-reduction at 500 °C (RCYO-500) exhibited the best performance in the temperature range from 100 to 180 °C for water gas shift (WGS) reaction, with a CO conversion of 57.30% and H2 production of 30.67 μmol·gcat−1·min−1 at 160 °C and a gas hourly space velocity (GHSV) of 6000 mL·gcat−1·h−1. The catalyst reduced at 320 °C (RCYO-320) performed best at the temperature range from 180 to 250 °C, which achieved 86.44% CO conversion and 54.73 μmol·gcat−1·min−1 H2 production at 250 °C. Both of the Cu-Y2O3 catalysts had similar structures including Cu°, Cu+, oxygen vacancies (Vo) on the Cu°-Cu+ interface and Y2O3 support. RCYO-500, with a mainly exposed Cu° (100) facet, was active in the low-temperature WGS reaction, while the WGS activity of RCYO-320, which mainly exposed the Cu° (111) facet, was greatly enhanced above 180 °C. Different Cu° facets have different abilities to absorb H2O and then dissociate it to form hydroxyl groups, which is the main step affecting the catalytic rate of the WGS reaction.
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31
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Ying M, Zhao R, Hu X, Zhang Z, Liu W, Yu J, Liu X, Liu X, Rong H, Wu C, Li Y, Zhang X. Wrinkled Titanium Carbide (MXene) with Surface Charge Polarizations through Chemical Etching for Superior Electromagnetic Interference Shielding. Angew Chem Int Ed Engl 2022; 61:e202201323. [PMID: 35129260 DOI: 10.1002/anie.202201323] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Indexed: 11/10/2022]
Abstract
Despite the fact that the high conductivity of two-dimensional laminated transition metal carbides/nitrides (MXenes) contributes to the outstanding electromagnetic interference (EMI) shielding by the reflection of electromagnetic waves (EWs), it is difficulty to improve EMI shielding by pursuing higher conductivity due to the limitation of intrinsic properties. Here, we achieve superior EMI shielding by introducing the absorption of EWs in MXenes with micro-sized wrinkles which are induced by abundant Ti vacancies under chemical etching. The shielding effectiveness is up to 107 dB at a thickness of 20 μm. Combining with atomic-scale structure observation and the first-principles calculations, it is concluded that the promotion of EMI shielding originates from the resonant absorption of formed electric dipoles induced by the asymmetrical distribution of charge densities near Ti vacancies. Our results could open a new vista for developing two-dimensional EMI shielding materials.
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Affiliation(s)
- Mengfan Ying
- Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310012, China
| | - Rongzhi Zhao
- Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310012, China
| | - Xin Hu
- Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310012, China
| | - Zhenhua Zhang
- Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310012, China
| | - Weiwei Liu
- Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310012, China
| | - Jieyi Yu
- Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310012, China
| | - Xiaolian Liu
- Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310012, China
| | - Xianguo Liu
- Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310012, China
| | - Huawei Rong
- Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310012, China
| | - Chen Wu
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Key Laboratory of Novel Materials for Information Technology of Zhejiang Province, Zhejiang University, Hangzhou, 310012, China
| | - Yixing Li
- Key Laboratory for Anisotropy and Texture of Materials (MOE), School of Materials Science and Engineering, Northeastern University, Shenyang, 110819, China
| | - Xuefeng Zhang
- Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310012, China
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32
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Ying M, Zhao R, Hu X, Zhang Z, Liu W, Yu J, Liu X, Liu X, Rong H, Wu C, Li Y, Zhang X. Wrinkled Titanium Carbide (MXene) with Surface Charge Polarizations through Chemical Etching for Superior Electromagnetic Interference Shielding. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201323] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Mengfan Ying
- Institute of Advanced Magnetic Materials College of Materials and Environmental Engineering Hangzhou Dianzi University Hangzhou 310012 China
| | - Rongzhi Zhao
- Institute of Advanced Magnetic Materials College of Materials and Environmental Engineering Hangzhou Dianzi University Hangzhou 310012 China
| | - Xin Hu
- Institute of Advanced Magnetic Materials College of Materials and Environmental Engineering Hangzhou Dianzi University Hangzhou 310012 China
| | - Zhenhua Zhang
- Institute of Advanced Magnetic Materials College of Materials and Environmental Engineering Hangzhou Dianzi University Hangzhou 310012 China
| | - Weiwei Liu
- Institute of Advanced Magnetic Materials College of Materials and Environmental Engineering Hangzhou Dianzi University Hangzhou 310012 China
| | - Jieyi Yu
- Institute of Advanced Magnetic Materials College of Materials and Environmental Engineering Hangzhou Dianzi University Hangzhou 310012 China
| | - Xiaolian Liu
- Institute of Advanced Magnetic Materials College of Materials and Environmental Engineering Hangzhou Dianzi University Hangzhou 310012 China
| | - Xianguo Liu
- Institute of Advanced Magnetic Materials College of Materials and Environmental Engineering Hangzhou Dianzi University Hangzhou 310012 China
| | - Huawei Rong
- Institute of Advanced Magnetic Materials College of Materials and Environmental Engineering Hangzhou Dianzi University Hangzhou 310012 China
| | - Chen Wu
- School of Materials Science and Engineering State Key Laboratory of Silicon Materials Key Laboratory of Novel Materials for Information Technology of Zhejiang Province Zhejiang University Hangzhou 310012 China
| | - Yixing Li
- Key Laboratory for Anisotropy and Texture of Materials (MOE) School of Materials Science and Engineering Northeastern University Shenyang 110819 China
| | - Xuefeng Zhang
- Institute of Advanced Magnetic Materials College of Materials and Environmental Engineering Hangzhou Dianzi University Hangzhou 310012 China
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33
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Liu W, Duan P, Ding Y, Zhang B, Su H, Zhang X, Wang J, Zou Z. One-dimensional MOFs-derived magnetic composites for efficient microwave absorption at ultralow thickness through controllable hydrogen reduction. Dalton Trans 2022; 51:6597-6606. [DOI: 10.1039/d2dt00113f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Magnetic materials with ingeniously designed structure may be utilized as highly efficient microwave absorbing materials (MAMS) working at ultralow matching thickness. However, it remains a challenge to decrease the matching...
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