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Ran F, Hu M, Deng S, Wang K, Sun W, Peng H, Liu J. Designing transition metal-based porous architectures for supercapacitor electrodes: a review. RSC Adv 2024; 14:11482-11512. [PMID: 38595725 PMCID: PMC11002841 DOI: 10.1039/d4ra01320d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 03/27/2024] [Indexed: 04/11/2024] Open
Abstract
Over the past decade, transition metal (TM)-based electrodes have shown intriguing physicochemical properties and widespread applications, especially in the field of supercapacitor energy storage owing to their diverse configurations, composition, porosity, and redox reactions. As one of the most intriguing research interests, the design of porous architectures in TM-based electrode materials has been demonstrated to facilitate ion/electron transport, modulate their electronic structure, diminish strain relaxation, and realize synergistic effects of multi-metals. Herein, the recent advances in porous TM-based electrodes are summarized, focusing on their typical synthesis strategies, including template-mediated assembly, thermal decomposition strategy, chemical deposition strategy, and host-guest hybridization strategy. Simultaneously, the corresponding conversion mechanism of each synthesis strategy are reviewed, and the merits and demerits of each strategy in building porous architectures are also discussed. Subsequently, TM-based electrode materials are categorized into TM oxides, TM hydroxides, TM sulfides, TM phosphides, TM carbides, and other TM species with a detailed review of their crystalline phase, electronic structure, and microstructure evolution to tune their electrochemical energy storage capacity. Finally, the challenges and prospects of porous TM-based electrode materials are presented to guide the future development in this field.
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Affiliation(s)
- Feitian Ran
- School of New Energy and Power Engineering, Lanzhou Jiaotong University Lanzhou 730070 China
| | - Meijie Hu
- School of New Energy and Power Engineering, Lanzhou Jiaotong University Lanzhou 730070 China
| | - Shulin Deng
- School of New Energy and Power Engineering, Lanzhou Jiaotong University Lanzhou 730070 China
| | - Kai Wang
- School of New Energy and Power Engineering, Lanzhou Jiaotong University Lanzhou 730070 China
| | - Wanjun Sun
- School of New Energy and Power Engineering, Lanzhou Jiaotong University Lanzhou 730070 China
| | - Hui Peng
- Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University Lanzhou 730070 China
| | - Jifei Liu
- School of New Energy and Power Engineering, Lanzhou Jiaotong University Lanzhou 730070 China
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2
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Zhu P, Kang Y, Li X, Yu H, Liu T, Song M, Zhang Y, Zhou L, Zhao P, Huang W. UV-modification of Ag nanoparticles on α-MoC x for interface polarization engineering in electromagnetic wave absorption. NANOSCALE 2024; 16:6249-6258. [PMID: 38449440 DOI: 10.1039/d3nr05917k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
The design of electromagnetic wave absorbing materials (EWAMs) has aroused great attention with the express development of electromagnetic devices, which pose a severe EM pollution risk to human health. Herein, an Ag-doped MoCx composite was designed and constructed through a UV-light-induced self-reduction process. The UV-reduction time was controlled on the α-MoC polymer for 0.5-2 hours for modifying different amounts of Ag. As a result, α-MoC@Ag-1.5 exhibited the strongest RLmin of -56.51 dB at 8.8 GHz under a thickness of 3.0 mm and the widest EAB of 4.96 GHz (12.16-17.12 GHz) covering a substantial portion of the Ku-band at a thickness of 2.0 mm due to the synergy of the conductivity loss and abundant interfacial polarization sites. Additionally, a new strategy for computer simulation technology was proposed to simulate substantial radar cross-sectional reduction values with real far-field conditions, whereby absorbing coatings with α-MoC@Ag-1.5 were proved to contribute to a remarkable radar cross-sectional reduction of 37.4 dB m2.
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Affiliation(s)
- Pengyuan Zhu
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Yifan Kang
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Xinglong Li
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Education Mega Centre, No. 280, Wai Huan Dong Road, Guangzhou 510006, PR China
| | - Haoquan Yu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Education Mega Centre, No. 280, Wai Huan Dong Road, Guangzhou 510006, PR China
| | - Tong Liu
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
- College of New Energy, Xi'an Shiyou University, Xi'an 710065, China
| | - Ming Song
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Yanan Zhang
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Lifan Zhou
- Shaanxi Electronic Information Research Institute Co. Ltd, Xian 710061, P. R. China
| | - Ping Zhao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Education Mega Centre, No. 280, Wai Huan Dong Road, Guangzhou 510006, PR China
| | - Wenhuan Huang
- Key Laboratory of Chemical Additives for China National Light Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
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Xie H, Li J, Yang R, Yang J, Wang T, Wang Q. Controllable fabrication of CoNi bimetallic alloy for high-performance electromagnetic wave absorption. RSC Adv 2024; 14:9791-9797. [PMID: 38528925 PMCID: PMC10961963 DOI: 10.1039/d3ra08896k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 03/14/2024] [Indexed: 03/27/2024] Open
Abstract
With the coming era of artificial intelligence (AI) dominated by high-tech electronics, developing high-performance microwave absorption materials (MAMs) is imperative to solve the problem of increasing electromagnetic inference and pollution. Herein, a metal-organic framework (MOF)-derived CoNi bimetallic alloy (CoNi/C) with an irregular rod-like structure is prepared by a thermal reduction method. Introducing the CoNi alloy facilitates the balance between conduction loss and polarization loss and forms good impedance matching, leading to excellent microwave absorption performance. Interestingly, the optimization of absorption performance can be further achieved by controllably modulating the molar ratio of Co and Ni (Co2+/Ni2+). As expected, the obtained CoNi/C delivers excellent microwave absorption performance with a minimum reflection loss (RLmin) of -50.80 dB at 10.40 GHz and an effective absorption bandwidth (EAB) of 3.28 GHz (8.91-12.19 GHz) with a filler loading of 50 wt% at 2.0 mm. In addition, the CoNi/C can reach a maximum EAB of 4.77 GHz (12.99-17.76 GHz) at a low thickness of 1.5 mm, spanning nearly the entire Ku band. The CoNi3/C also exhibits an impressive RLmin of -44.84 dB at 3.28 GHz in the S band. This work offers a novel strategy to modulate the magnetic/electric properties of MOF-derived MAMs.
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Affiliation(s)
- Hai Xie
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences Beijing 100049 China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Jinmei Li
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Rui Yang
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Juan Yang
- Laboratory of Clean Energy Chemistry and Materials, State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Tingmei Wang
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences Beijing 100049 China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
| | - Qihua Wang
- Key Laboratory of Science and Technology on Wear and Protection of Materials, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences Beijing 100049 China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences Lanzhou 730000 China
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4
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Zhou Z, Zhou X, Lan D, Zhang Y, Jia Z, Wu G, Yin P. Modulation Engineering of Electromagnetic Wave Absorption Performance of Layered Double Hydroxides Derived Hollow Metal Carbides Integrating Corrosion Protection. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305849. [PMID: 37817350 DOI: 10.1002/smll.202305849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/19/2023] [Indexed: 10/12/2023]
Abstract
Layered double hydroxides (LDHs) with unique layered structure and atomic composition are limited in the field of electromagnetic wave absorption (EMA) due to their poor electrical conductivity and lack of dielectric properties. In this study, the EMA performance and anticorrosion of hollow derived LDH composites are improved by temperature control and composition design using ZIF-8 as a sacrifice template. Diverse regulation modes result in different mechanisms for EMA. In the temperature control process, chemical reactions tune the composition of the products and construct a refined structure to optimize the LDHs conductivity loss. Additionally, the different phase interfaces generated by the control components optimize the impedance matching and enhance the interfacial polarization. The results show that the prepared NCZ (Ni3ZnC0.7/Co3ZnC@C) has a minimum reflection loss (RLmin ) of -58.92 dB with a thickness of 2.4 mm and a maximum effective absorption bandwidth (EABmax ) of 7.36 GHz with a thickness of 2.4 mm. Finally, due to its special structure and composition, the sample exhibits excellent anticorrosion properties. This work offers essential knowledge for designing engineering materials derived from metal organic framework (MOF) with cutting-edge components and nanostructures.
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Affiliation(s)
- Zehua Zhou
- College of Science, Sichuan Agricultural University, Ya'an, 625014, P. R. China
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Xinfeng Zhou
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Di Lan
- School of Materials Science and Engineering, Hubei University of Automotive Technology, Shiyan, 442002, P. R. China
| | - Yan Zhang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Zirui Jia
- Institute of Materials for Energy and Environment, State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Guanglei Wu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, P. R. China
| | - Pengfei Yin
- College of Science, Sichuan Agricultural University, Ya'an, 625014, P. R. China
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5
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Liu Y, He X, Wang Y, Cheng Z, Yao Z, Zhou J, Zuo Y, Chen R, Lei Y, Tan R, Chen P. Controlled Synthesis of MOF-Derived Nano-Microstructure toward Lightweight and Wideband Microwave Absorption. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302633. [PMID: 37232212 DOI: 10.1002/smll.202302633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/04/2023] [Indexed: 05/27/2023]
Abstract
Correlating metal-organic framework (MOF) synthesis processes and microwave absorption (MA) enhancement mechanisms is a pioneer project. Nevertheless, the correlation process still relies mainly on empirical doctrine, which hardly corresponds to the specific mechanism of the effect on the dielectric properties. Hereby, after the strategy of modulation of protonation engineering and solvothermal temperature in the synthesis route, the obtained sheet-like self-assembled nanoflowers were constructed. Porous structures with multiple heterointerfaces, abundant defects, and vacancies are obtained by controlled design of the synthesis procedure. The rearrangement of charges and enhanced polarization can be promoted. The designed electromagnetic properties and special nano-microstructures of functional materials have significant impact on their electromagnetic wave energy conversion effects. As a consequence, the MA performance of the samples has been enhanced toward broadband absorption (6.07 GHz), low thickness (2.0 mm), low filling (20%), and efficient loss (-25 dB), as well as being suitable for practical environmental applications. This work establishes the connection between the MOF-derived materials synthesis process and the MA enhancement mechanism, which provides insight into various microscopic microwave loss mechanisms.
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Affiliation(s)
- Yijie Liu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 211100, Nanjing, China
| | - Xiaoxuan He
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 211100, Nanjing, China
| | - Yucheng Wang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 211100, Nanjing, China
| | - Zhenyu Cheng
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 211100, Nanjing, China
| | - Zhengjun Yao
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 211100, Nanjing, China
| | - Jintang Zhou
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 211100, Nanjing, China
| | - Yuxin Zuo
- School of Chemistry and Chemical Engineering, Anhui University, Hefei, 230601, China
| | - Rongxin Chen
- School of Information Engineering, Chang'an University, Xi'an, 710064, China
| | - Yiming Lei
- Key Laboratory of Impact and Safety Engineering of Ministry of Education of China, Ningbo University, Ningbo, 315211, China
| | - Ruiyang Tan
- School of Electronic Science and Engineering, Nanjing University, Nanjing, 211100, China
| | - Ping Chen
- School of Electronic Science and Engineering, Nanjing University, Nanjing, 211100, China
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6
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Shi T, Yao Y, Hong Y, Li Y, Lu S, Qin W, Wu X. Scrolling reduced graphene oxides to induce room temperature magnetism via spatial coupling of defects. MATERIALS HORIZONS 2023; 10:4344-4353. [PMID: 37439252 DOI: 10.1039/d3mh00734k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Due to its intriguing features and numerous applications, graphene has garnered a lot of interest in recent years. However, it is still very difficult to create graphene-based room-temperature magnets without transition metals or rare earth elements since pristine graphene is inherently diamagnetic due to the delocalized π bonding network. Herein, room-temperature ferromagnetism with a saturation magnetization of 0.93 emu g-1 (300 K) is achieved in defect-rich-reduced graphene oxide (DR-rGO) nanoscrolls by creating a spatial coupling of defects. The experiments and DFT calculations verify that spatial coupling of defects could enhance Rudermann-Kittel-Kasuya-Yosida interactions to induce magnetism in graphene. It displays high-efficiency electromagnetic wave absorption performance with a minimal reflection loss of -62.1 dB and an effective absorption bandwidth of 7.8 GHz (3.0 mm) thanks to greatly improved magnetism. This breakthrough serves as a building block for the creation of room-temperature magnetic carbon materials and expands their applications in many pertinent domains.
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Affiliation(s)
- Ting Shi
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China.
| | - Yuan Yao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China.
| | - Yang Hong
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China.
| | - Yang Li
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China.
| | - Songtao Lu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China.
| | - Wei Qin
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China
| | - Xiaohong Wu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China.
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7
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Li M, Song X, Xue J, Ye F, Yin L, Cheng L, Fan X. Construction of Hollow Carbon Nanofibers with Graphene Nanorods as Nano-Antennas for Lower-Frequency Microwave Absorption. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37356111 DOI: 10.1021/acsami.3c04839] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
Electromagnetic (EM) wave absorbers at a lower-frequency region (2-8 GHz) require higher attenuation ability to achieve efficient absorption. However, the impedance match condition and attenuation ability are usually inversely related. Herein, one-dimensional hollow carbon nanofibers with graphene nanorods are prepared based on coaxial electrospinning technology. The morphology of graphene nanorods can be controlled by the annealing process. As the annealing time increased from 2 to 8 h, graphene nanospheres grew into graphene nanorods, which were catalyzed by Co catalysts derived from ZIF-67 nanoparticles. These nanorods can play the role of nano-antennas, which can guide EM waves into materials to enhance impedance match conditions. As a result, the carbon nanofibers with graphene nanorods possess a larger impedance match area with higher attenuation ability. The minimum reflection loss reaches -57.1 dB at a thickness of 4.6 mm, and the effective absorption bandwidth can cover almost both the S and C bands (2.4-8 GHz). This work contributes a meaningful perspective into the modulation of microwave absorption performance in the lower-frequency range.
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Affiliation(s)
- Minghang Li
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
| | - Xinrui Song
- DGUT-CNAM Institute, Dongguan University of Technology, Dongguan 523106, China
| | - Jimei Xue
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
| | - Fang Ye
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
| | - Ling Yin
- DGUT-CNAM Institute, Dongguan University of Technology, Dongguan 523106, China
| | - Laifei Cheng
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
| | - Xiaomeng Fan
- Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, China
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8
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Yang F, Yao J, Du W, Huyan W, Peng G, Zhou J, Yao Z. Ice-templated assembly strategy to construct oriented porous Ti3SiC2 ceramics for thermal management and electromagnetic interference shielding in harsh thermal environments. Ann Ital Chir 2023. [DOI: 10.1016/j.jeurceramsoc.2023.01.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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9
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Gao Z, Iqbal A, Hassan T, Zhang L, Wu H, Koo CM. Texture Regulation of Metal-Organic Frameworks, Microwave Absorption Mechanism-Oriented Structural Optimization and Design Perspectives. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2204151. [PMID: 36253151 PMCID: PMC9762306 DOI: 10.1002/advs.202204151] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/15/2022] [Indexed: 05/12/2023]
Abstract
Texture regulation of metal-organic frameworks (MOFs) is essential for controlling their electromagnetic wave (EMW) absorption properties. This review systematically summarizes the recent advancements in texture regulation strategies for MOFs, including etching and exchange of central ions, etching and exchange of ligands, chemically induced self-assembly, and MOF-on-MOF heterostructure design. Additionally, the EMW absorption mechanisms in approaches based on structure-function dependencies, including nano-micro topological engineering, defect engineering, interface engineering, and hybrid engineering, are comprehensively explored. Finally, current challenges and future research orientation are proposed. This review aims to provide new perspectives for designing MOF-derived EMW-absorption materials to achieve essential breakthroughs in mechanistic investigations in this promising field.
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Affiliation(s)
- Zhenguo Gao
- MOE Key Laboratory of Material Physics and Chemistry under ExtraordinaryNorthwestern Polytechnical UniversityXi'an710072China
- School of Advanced Materials Science and EngineeringSungKyunKwan UniversitySeobu‐ro 2066, Jangan‐guSuwon‐siGyeonggi‐do16419Republic of Korea
- Materials Architecturing Research CenterKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
| | - Aamir Iqbal
- School of Advanced Materials Science and EngineeringSungKyunKwan UniversitySeobu‐ro 2066, Jangan‐guSuwon‐siGyeonggi‐do16419Republic of Korea
| | - Tufail Hassan
- School of Advanced Materials Science and EngineeringSungKyunKwan UniversitySeobu‐ro 2066, Jangan‐guSuwon‐siGyeonggi‐do16419Republic of Korea
| | - Limin Zhang
- MOE Key Laboratory of Material Physics and Chemistry under ExtraordinaryNorthwestern Polytechnical UniversityXi'an710072China
| | - Hongjing Wu
- MOE Key Laboratory of Material Physics and Chemistry under ExtraordinaryNorthwestern Polytechnical UniversityXi'an710072China
| | - Chong Min Koo
- School of Advanced Materials Science and EngineeringSungKyunKwan UniversitySeobu‐ro 2066, Jangan‐guSuwon‐siGyeonggi‐do16419Republic of Korea
- Materials Architecturing Research CenterKorea Institute of Science and Technology (KIST)Seoul02792Republic of Korea
- School of Chemical EngineeringSungKyunKwan UniversitySeobu‐ro 2066, Jangan‐guSuwon‐siGyeonggi‐do16419Republic of Korea
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10
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Schneider JK, Ove CA, Pirlo RK, Biffinger JC. Synthesis and characterization of thermoplastic poly(piperazine succinate) metallopolymers coordinated to ruthenium(
III
) or iron(
III
). JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
| | - Clarissa A. Ove
- Department of Chemistry University of Dayton Dayton Ohio USA
| | - Russell K. Pirlo
- Department of Chemical Engineering University of Dayton Dayton Ohio USA
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11
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Zhou C, Yao Z, Wei B, Li W, Li Z, Tao X, Zhou J. Facile synthesis of ZIF-67 derived dodecahedral C/NiCO 2S 4 with broadband microwave absorption performance. NANOSCALE 2022; 14:10375-10388. [PMID: 35797985 DOI: 10.1039/d2nr02490j] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The increasing hazard of electromagnetic radiation prompts people to pursue absorbing materials with better performance. However, absorbing materials with a single loss mechanism usually is unable to obtain better absorbing performance due to low impedance matching or high filling ratio. Therefore, this work proposes a C/NiCo2S4 (CNCS) material with both dielectric loss/magnetic loss to achieve efficient absorption of electromagnetic waves. The simple preparation of CNCS materials was achieved through the etching of the ZIF-67 template by nickel nitrate and the subsequent hydrothermal vulcanization process. Its unique prismatic dodecahedron hollow structure promotes multiple scattering of electromagnetic waves. The attachment of the magnetic NiCo2S4 particles on the surface of the carbon template further promotes the interface polarization and dipole polarization, which is equivalent to the formation of a resistance-rich microcircuit and enhances the effect of the conductance loss on electromagnetic waves. At 2-18 GHz, the CNCS-2 with 30% paraffin addition achieves an effective bandwidth of 5.54 GHz at a matching thickness of 1.7 mm, and has a maximum reflection loss of -36.44 dB at 1.5 mm. By adjusting the thickness of the material matching layer (1-3 mm), an effective bandwidth of up to 13.48 GHz can be achieved, perfectly covering the X-band and Ku-band. Based on the simple preparation process of the material, the special hollow structure and the multiple loss mechanisms for electromagnetic waves, we believe that CNCS can become a strong competitor for high-efficiency broadband absorbers.
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Affiliation(s)
- Congyu Zhou
- College of Materials and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China.
| | - Zhengjun Yao
- College of Materials and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China.
| | - Bo Wei
- College of Materials and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China.
| | - Wenying Li
- College of Materials and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China.
| | - Zhejia Li
- College of Materials and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China.
| | - Xuewei Tao
- School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, China
| | - Jintang Zhou
- College of Materials and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, China.
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12
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He X, Zhou J, Tao J, Liu Y, Wei B, Yao Z, Tao X. Preparation of porous CoNi/N-doped carbon microspheres based on magnetoelectric coupling strategy: A new choice against electromagnetic pollution. J Colloid Interface Sci 2022; 626:123-135. [PMID: 35780546 DOI: 10.1016/j.jcis.2022.06.153] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 06/25/2022] [Accepted: 06/27/2022] [Indexed: 11/17/2022]
Abstract
Magnetoelectric coupling is a key strategy to obtain high-performance microwave absorption materials. Especially for carbon matrix composites, the absorbing capacity can be optimized via the tuning of the graphitization degree and the content ratio of the magnetic and dielectric components. Based on this theory, a simple strategy, consisting of the solvothermal method and annealing in an inert atmosphere, is adopted in this study to combine CoNi magnetic alloys with graphitized carbon into micron-scale composite spherical particles. Additionally, special attention is paid to the correlation among the graphitization degree of carbon matrix, component proportion, and dielectric response ability, so as to achieve a flexible micromorphology design and a tunable microwave absorption performance. When the pyrolysis temperature is offset to the best of 700 ℃, a broadband absorption of 6.61 GHz (reflection loss < - 10 dB) is achieved at an ultrathin matching thickness of 1.9 mm. Adjusting the carbon content can further optimize the impedance matching and realize a high-intensity absorption with a reflection loss of - 72.7 dB. Our work proposes a useful strategy to realize the effective combination of the magnetic and dielectric loss mechanisms and boost the microwave absorption capacity toward achieving the desired broadband and a high-efficiency absorption performance.
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Affiliation(s)
- Xiaoxuan He
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, Jiangsu, People's Republic of China; Key Laboratory of Material Preparation and Protection for Harsh Environment (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing 211100, Jiangsu, People's Republic of China
| | - Jintang Zhou
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, Jiangsu, People's Republic of China; Key Laboratory of Material Preparation and Protection for Harsh Environment (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing 211100, Jiangsu, People's Republic of China.
| | - Jiaqi Tao
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, Jiangsu, People's Republic of China; Key Laboratory of Material Preparation and Protection for Harsh Environment (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing 211100, Jiangsu, People's Republic of China
| | - Yijie Liu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, Jiangsu, People's Republic of China; Key Laboratory of Material Preparation and Protection for Harsh Environment (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing 211100, Jiangsu, People's Republic of China
| | - Bo Wei
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, Jiangsu, People's Republic of China; Key Laboratory of Material Preparation and Protection for Harsh Environment (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing 211100, Jiangsu, People's Republic of China
| | - Zhengjun Yao
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 211100, Jiangsu, People's Republic of China; Key Laboratory of Material Preparation and Protection for Harsh Environment (Nanjing University of Aeronautics and Astronautics), Ministry of Industry and Information Technology, Nanjing 211100, Jiangsu, People's Republic of China
| | - Xuewei Tao
- School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, China
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