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Zhang M, Sun X, Cai X, Zhan X, Wu Y, Zhang X, Wu G, Wang X. Large Microsphere Structure of a Co/C Composite Derived from Co-MOF with Excellent Wideband Electromagnetic Microwave Absorption Performance. ACS APPLIED MATERIALS & INTERFACES 2023; 15:59681-59692. [PMID: 38086762 DOI: 10.1021/acsami.3c12986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
In the field of electromagnetic wave (EMW) absorption, carbon matrix materials based on metal-organic frameworks (MOFs) have drawn more interest as a result of their outstanding advantages, such as porous structure, lightweight, controlled morphology, etc. However, how to broaden the effective absorption bandwidth [EAB; reflection loss (RL) ≤ -10 dB] is still a challenge. In this paper, large microsphere structures of a Co/C composite composed of small particle clusters were successfully prepared by the solvothermal method and annealing treatment. At a filling ratio of 40 wt %, the Co/C composite shows attractive microwave absorption (MA) performance after being annealed at 600 °C in an atmosphere of argon. With an EAB of 6.32 GHz (9.92-16.24 GHz) and a thickness of just 2.57 mm, the minimum RL can be attained at -54.55 dB. Most importantly, the EAB can attain 7.12 GHz (10.88-18.0 GHz) when the thickness is 2.38 mm, which is larger than that of the majority of MOF-derived composites. The superior MA performance is strongly related to excellent impedance matching and a higher attenuation constant. This study provides a simple strategy for synthesizing a MOF-derived Co/C composite with a wide EAB.
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Affiliation(s)
- Mengyi Zhang
- Qingdao Innovation and Development Base of Harbin Engineering University, Harbin Engineering University, Harbin, Heilongjiang 150001, People's Republic of China
| | - Xiaohui Sun
- Qingdao Innovation and Development Base of Harbin Engineering University, Harbin Engineering University, Harbin, Heilongjiang 150001, People's Republic of China
| | - Xudong Cai
- Science and Technology on Near-Surface Detection Laboratory, Wuxi, Jiangsu 214035, People's Republic of China
| | - Xiaolu Zhan
- Qingdao Innovation and Development Base of Harbin Engineering University, Harbin Engineering University, Harbin, Heilongjiang 150001, People's Republic of China
| | - Yufei Wu
- Qingdao Innovation and Development Base of Harbin Engineering University, Harbin Engineering University, Harbin, Heilongjiang 150001, People's Republic of China
| | - Xuyang Zhang
- Qingdao Innovation and Development Base of Harbin Engineering University, Harbin Engineering University, Harbin, Heilongjiang 150001, People's Republic of China
| | - Guohua Wu
- Qingdao Innovation and Development Base of Harbin Engineering University, Harbin Engineering University, Harbin, Heilongjiang 150001, People's Republic of China
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Wuhu, Anhui 241002, People's Republic of China
| | - Xiangwei Wang
- Qingdao Innovation and Development Base of Harbin Engineering University, Harbin Engineering University, Harbin, Heilongjiang 150001, People's Republic of China
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Zheng C, Ning M, Zou Z, Lv G, Wu Q, Hou J, Man Q, Li RW. Two Birds with One Stone: Broadband Electromagnetic Wave Absorption and Anticorrosion Performance in 2-18 GHz for Prussian Blue Analog Derivatives Aimed for Practical Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2208211. [PMID: 37078912 DOI: 10.1002/smll.202208211] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 03/20/2023] [Indexed: 05/03/2023]
Abstract
Nowadays, the exploration of electromagnetic (EM) wave absorbers with anticorrosion to improve the survivability and environmental adaptability of military targets in the harsh environments is becoming an attractive and unavoidable challenge. Herein, through modulation of the metal composition in the precursors, the core@shell structure Prussian blue analog-derived NiCo@C, CoFe@C, NiFe@C, and NiCoFe@C are obtained with excellent EM wave absorption performance. As for NiCoFe@C, ascribed to the coupling effect of the dual magnetic alloy, a minimum reflection loss (RL) of -47.6 dB and an effective absorption bandwidthof 5.83 GHz are realized, which cover the whole Ku-band. Meanwhile, four absorbers display the lower corrosion current density (10-4 -10-6 A cm-2 ) and larger polarization resistance (104 -106 Ω) under acid, neutral, and alkaline corrosion conditions over uninterrupted 30 days. Furthermore, due to the spatial barrier effect and the passivation effect of the graphitic carbon shell , the continuous salt spray test has little effect on RL performance and inconspicuously changes the surface morphologies of coating, demonstrating its excellent bifunctional performance. This work lays the foundation for the development of metal-organic frameworks-derived materials with both anticorrosion and EM wave absorption performance.
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Affiliation(s)
- Chunlin Zheng
- School of Rare Earths, University of Science and Technology of China, Hefei, Anhui, 230026, China
- CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering of the Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, China
| | - Mingqiang Ning
- CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering of the Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, China
| | - Zhe Zou
- CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering of the Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, China
| | - Ganggang Lv
- Innovation Center for Applied Magnetics of Zhejiang Province, Ningbo, Zhejiang, 315201, China
| | - Qiang Wu
- Innovation Center for Applied Magnetics of Zhejiang Province, Ningbo, Zhejiang, 315201, China
| | - Jianhua Hou
- College of Environmental Science and Engineering, Yangzhou University, Yangzhou, 225000, China
| | - Qikui Man
- CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering of the Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, China
| | - Run-Wei Li
- CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering of the Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, China
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Zhang Z, Wang J, Shang J, Xu Y, Wan YJ, Lin Z, Sun R, Hu Y. A Through-Thickness Arrayed Carbon Fibers Elastomer with Horizontal Segregated Magnetic Network for Highly Efficient Thermal Management and Electromagnetic Wave Absorption. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2205716. [PMID: 36437045 DOI: 10.1002/smll.202205716] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/08/2022] [Indexed: 06/16/2023]
Abstract
Multifunctional thermal management materials with highly efficient electromagnetic wave (EMW) absorption performance are urgently required to tackle the heat dissipation and electromagnetic interference issues of high integrated electronics. However, the high thermal conductivity (λ) and outstanding EMW absorption performance are often incompatible with each other in a single material. Herein, a through-thickness arrayed NiCo2 O4 /graphene oxide/carbon fibers (NiCO@CFs) elastomer with integrated functionalities of high thermal conductivity, highly efficient EMW absorption, and excellent compressibility is reported. The NiCO@CFs elastomer realizes a high out-of-plane thermal conductivity of 15.55 W m-1 K-1 , due to the through-thickness vertically aligned CFs framework. Moreover, the unique horizontal segregated magnetic network effectively reduces the electrical contact between the CFs, which significantly enhances impedance matching of NiCO@CFs elastomer. As a result, the vertically arrayed NiCO@CFs elastomer synchronously exhibits ultrabroad effective absorption bandwidth of 8.25 GHz (9.75-18 GHz) at a thickness of 2.4 mm, good impedance matching, and a minimum reflection loss (RLmin ) of -55.15 dB. Given these outstanding findings, the multifunctional arrayed NiCO@CFs elastomer opens an avenue for applications in EMW absorption and thermal management. This strategy of constructing thermal/electrical/mechanical pathways provides a promising way for the high-performance multifunctional materials in electronic devices.
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Affiliation(s)
- Zhen Zhang
- Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- College of Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Jianda Wang
- Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- Nano Science and Technology Institute, University of Science and Technology of China, Suzhou, 215123, China
| | - Jian Shang
- Institute of Technology for Carbon Neutrality, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Yadong Xu
- Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Yan-Jun Wan
- Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Zhiqiang Lin
- Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Rong Sun
- Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Yougen Hu
- Shenzhen Institute of Advanced Electronic Materials, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
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The Mechanical, Dielectric, and EMI Shielding Properties of Nickel Ferrite (NiF)/Graphene (Gr)-Doped Epoxy Composites. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02419-5] [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]
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Enhanced Electromagnetic Wave Absorption Properties of Ultrathin MnO 2 Nanosheet-Decorated Spherical Flower-Shaped Carbonyl Iron Powder. Molecules 2021; 27:molecules27010135. [PMID: 35011367 PMCID: PMC8746408 DOI: 10.3390/molecules27010135] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/22/2021] [Accepted: 12/24/2021] [Indexed: 11/17/2022] Open
Abstract
In this work, spherical flower-shaped composite carbonyl iron powder@MnO2 (CIP@MnO2) with CIP as the core and ultrathin MnO2 nanosheets as the shell was successfully prepared by a simple redox reaction to improve oxidation resistance and electromagnetic wave absorption properties. The microwave-absorbing properties of CIP@MnO2 composites with different filling ratios (mass fractions of 20%, 40%, and 60% after mixing with paraffin) were tested and analyzed. The experimental results show that compared with pure CIP, the CIP@MnO2 composites have smaller minimum reflection loss and a wider effective absorption bandwidth than CIP (RL < -20 dB). The sample filled with 40 wt% has the best comprehensive performance, the minimum reflection loss is -63.87 dB at 6.32 GHz, and the effective absorption bandwidth (RL < -20 dB) reaches 7.28 GHz in the range of 5.92 GHz-9.28 GHz and 11.2 GHz-15.12 GHz, which covers most C and X bands. Such excellent microwave absorption performance of the spherical flower-like CIP@MnO2 composites is attributed to the combined effect of multiple beneficial components and the electromagnetic attenuation ability generated by the special spherical flower-like structure. Furthermore, this spherical flower-like core-shell shape aids in the creation of discontinuous networks, which improve microwave incidence dispersion, polarize more interfacial charges, and allow electromagnetic wave absorption. In theory, this research could lead to a simple and efficient process for producing spherical flower-shaped CIP@MnO2 composites with high absorption, a wide band, and oxidation resistance for a wide range of applications.
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Cheng R, Wang Y, Di X, Lu Z, Wang P, Ma M, Ye J. Construction of MOF-derived plum-like NiCo@C composite with enhanced multi-polarization for high-efficiency microwave absorption. J Colloid Interface Sci 2021; 609:224-234. [PMID: 34896826 DOI: 10.1016/j.jcis.2021.11.197] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/29/2021] [Accepted: 11/30/2021] [Indexed: 11/16/2022]
Abstract
Nowadays, facing the inevitable electromagnetic (EM) pollution caused by many electronic products, it is urgent to develop high-performance microwave absorbing materials. In particular, the bimetallic carbon-based composites derived from MOFs exhibit excellent microwave absorption potential due to their simple preparation, low cost, adjustable morphology and magnetoelectric synergy mechanism. In this work, we successfully prepared plum-like NiCo@C composite by simple solvothermal method and carbonization treatment, which displays strong absorption (-55.4 dB) and wide effective absorption band (EAB, 7.2 GHz) when the loading is 20 wt%. The plum-like structure greatly enriches the non-uniform interface and the structural anisotropy contributes to the dissipation of electromagnetic waves. At the same time, the band hybridization and magnetic coupling of NiCo@C contribute to the coordination of EM characteristics. Overall, this work proves the feasibility of NiCo@C hierarchical composite in the field of microwave absorbing, and provides insight for the development of high-performance absorbers.
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Affiliation(s)
- Runrun Cheng
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, PR China
| | - Yan Wang
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, PR China.
| | - Xiaochuang Di
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, PR China
| | - Zhao Lu
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, PR China
| | - Ping Wang
- School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an 710021, PR China
| | - Mingliang Ma
- School of Civil Engineering, Qingdao University of Technology, Qingdao 266033, PR China
| | - Jinrui Ye
- Institute of Science and Technology of Beihang University, Beijing 100191, PR China
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Zhang X, Jia Z, Zhang F, Xia Z, Zou J, Gu Z, Wu G. MOF-derived NiFe 2S 4/Porous carbon composites as electromagnetic wave absorber. J Colloid Interface Sci 2021; 610:610-620. [PMID: 34848054 DOI: 10.1016/j.jcis.2021.11.110] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 12/12/2022]
Abstract
The preparation of strong absorption, thin thickness and wide band electromagnetic wave absorbers has always been the focus of research. In this paper, NiFe2S4/PC composites, an electromagnetic wave absorbing material with excellent performance, is prepared by introducing Ni-MOF, Fe and S elements into porous carbon framework. The material has a minimum reflection loss (RLmin) of -51.41 dB and the matching thickness is only 1.8 mm. In addition, the effective absorption bandwidth (EAB) is 4.08 GHz when the thickness is 1.9 mm. The rich interface and good impedance matching characteristics are the main reasons for the excellent absorbing performance of the material. The experimental results show that NiFe2S4/PC composites is a reasonable and effective electromagnetic wave absorption material.
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Affiliation(s)
- Xiaoyi Zhang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, PR China; Weihai Innovation Institute, Qingdao University, Weihai 264200, P.R. China
| | - Zirui Jia
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, PR China; Weihai Innovation Institute, Qingdao University, Weihai 264200, P.R. China.
| | - Feng Zhang
- Institute of Materials for Energy and Environment, State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, PR China
| | - Zihao Xia
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, PR China
| | - Jiaxiao Zou
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, PR China
| | - Zheng Gu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, PR China; Weihai Innovation Institute, Qingdao University, Weihai 264200, P.R. China.
| | - Guanglei Wu
- Institute of Materials for Energy and Environment, State Key Laboratory of Bio-fibers and Eco-textiles, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, PR China.
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Burhannuddin NL, Nordin NA, Mazlan SA, Aziz SAA, Kuwano N, Jamari SKM, Ubaidillah. Physicochemical characterization and rheological properties of magnetic elastomers containing different shapes of corroded carbonyl iron particles. Sci Rep 2021; 11:868. [PMID: 33441824 PMCID: PMC7806848 DOI: 10.1038/s41598-020-80539-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/18/2020] [Indexed: 11/15/2022] Open
Abstract
Carbonyl iron particles (CIPs) is one of the key components in magnetic rubber, known as magnetorheological elastomer (MRE). Apart from the influence of their sizes and concentrations, the role of the particle’ shape is pronounced worthy of the attention for the MRE performance. However, the usage of CIPs in MRE during long-term applications may lead to corrosion effects on the embedded CIPs, which significantly affects the performance of devices or systems utilizing MRE. Hence, the distinctions between the two types of MRE embedded in different shapes of spherical and plate-like CIPs, at both conditions of non-corroded and corroded CIPs were investigated in terms of the field-dependent rheological properties of MRE. The plate-like shape was produced from spherical CIPs through a milling process using a rotary ball mill. Then, both shapes of CIPs individually subjected to an accelerated corrosion test in diluted hydrochloric (HCl) at different concentrations, particularly at 0.5, 1.0, and 1.5 vol.% for 30 min of immersion time. Eight samples of CIPs, including non-corroded for both CIPs shapes, were characterized in terms of a morphological study by field emission scanning electron microscope (FESEM) and magnetic properties via vibrating sample magnetometer (VSM). The field-dependent rheological properties of MREs were analyzed the change in the dynamic modulus behavior of MREs via rheometer. From the application perspective, this finding may be useful for the system to be considered that provide an idea to prolong the performance MRE by utilizing the different shapes of CIPs even when the material is fading.
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Affiliation(s)
- Nurul Liyana Burhannuddin
- Engineering Materials and Structures (eMast) iKohza, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia
| | - Nur Azmah Nordin
- Engineering Materials and Structures (eMast) iKohza, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia.
| | - Saiful Amri Mazlan
- Engineering Materials and Structures (eMast) iKohza, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia.,International Center, 1 Chrome-28-1 Tamazutmi, Setagaya, Tokyo, 158-0087, Japan
| | - Siti Aishah Abdul Aziz
- Engineering Materials and Structures (eMast) iKohza, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia
| | - Noriyuki Kuwano
- The Ultramicroscopy Research Center, Kyushu University, 744 Motooka, Nishu-ku, Fukuoka, 819-0395, Japan
| | - Siti Khumaira Mohd Jamari
- Engineering Materials and Structures (eMast) iKohza, Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia
| | - Ubaidillah
- Department of Mechanical Engineering, Faculty of Engineering, Universitas Sebelas Maret, J1. Ir. Sutami 36A, Kentingan, Surakarta, Central Java, 57126, Indonesia.
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Kang SS, Choi K, Nam JD, Choi HJ. Magnetorheological Elastomers: Fabrication, Characteristics, and Applications. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4597. [PMID: 33076562 PMCID: PMC7602820 DOI: 10.3390/ma13204597] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/07/2020] [Accepted: 10/13/2020] [Indexed: 01/12/2023]
Abstract
Magnetorheological (MR) elastomers become one of the most powerful smart and advanced materials that can be tuned reversibly, finely, and quickly in terms of their mechanical and viscoelastic properties by an input magnetic field. They are composite materials in which magnetizable particles are dispersed in solid base elastomers. Their distinctive behaviors are relying on the type and size of dispersed magnetic particles, the type of elastomer matrix, and the type of non-magnetic fillers such as plasticizer, carbon black, and crosslink agent. With these controllable characteristics, they can be applied to various applications such as vibration absorber, isolator, magnetoresistor, and electromagnetic wave absorption. This review provides a summary of the fabrication, properties, and applications of MR elastomers made of various elastomeric materials.
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Affiliation(s)
- Sung Soon Kang
- Department of Polymer Science and Engineering, Inha University, Incheon 22212, Korea;
| | - Kisuk Choi
- Department of Polymer Science and Engineering, School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea; (K.C.); (J.-D.N.)
| | - Jae-Do Nam
- Department of Polymer Science and Engineering, School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea; (K.C.); (J.-D.N.)
| | - Hyoung Jin Choi
- Department of Polymer Science and Engineering, Inha University, Incheon 22212, Korea;
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Jinxiao W, Jianfeng Y, Jun Y, Hui Z. Design of novel CNT/RGO/ZIF-8 ternary hybrid structure for lightweight and highly effective microwave absorption. NANOTECHNOLOGY 2020; 31:414001. [PMID: 32559751 DOI: 10.1088/1361-6528/ab9e93] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Carbon-nanotube-based composites are highly desirable for addressing the difficulties relevant to the quality of electromagnetic wave absorbers. The introduction of lightweight nanocomposites for constructing new structures has been widely studied due to the transformation in impedance matching and attenuation. In this paper, a novel carbon nanotube-graphene oxide-zeolitic imidazolate framework-8 (CNT/RGO/ZIF-8) ternary hybrid structure was successfully fabricated by a facile solvothermal process. The ZIF-8 was entangled initially by carbon nanotubes via the π-π interaction between organic ligands and benzene ring structure in CNT. Then, the CNT/ZIF-8 composite was immobilized on the surface of RGO by interacting with the active functional group of RGO. The structure and performance for CNT, CNT/ZIF-8, and CNT/RGO/ZIF-8 were compared to investigate the interaction mechanisms between components, and CNT/ZIF-8 exhibited a distinct improvement for microwave absorption performance. Furthermore, the introduction of RGO can accelerate the amelioration of absorption characteristics. The interfacial bonding between CNT, RGO, and ZIF-8 exerts a great influence on the absorbing quality. The mechanism of absorption of electromagnetic waves was explained by the synergistic effects of conduction loss, polarization behaviors, and eddy current. The unique structure could offer new insights to exploit advanced microwave-absorption materials.
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Affiliation(s)
- Wang Jinxiao
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
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Jinxiao W, Jianfeng Y, Jun Y, Hui Z. Design of a novel carbon nanotube and metal-organic framework interpenetrated structure with enhanced microwave absorption properties. NANOTECHNOLOGY 2020; 31:394002. [PMID: 32454470 DOI: 10.1088/1361-6528/ab967c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The exploitation of carbon nanotube (CNT) and metal-organic framework (MOF) composite materials has been highly desirable in a number of applications. However, the construction of high dispersibility and stability CNT/MOF complex structures is still an enormous challenge. Herein, a novel assembly method is established for the construction of a CNT/Ni-MOF (0.1 CNT/MOF, 0.2 CNT/MOF, 0.3 CNT/MOF) interpenetrated structure by a solvothermal process. The MOFs can be robustly anchored on the surface of CNTs. Through a series of characterizations, the MOF can be comfortably integrated into the CNT fibers, which exhibits the enhancement of carrier mobility and fluorescence properties. The microwave absorption properties of the CNT/MOF are explored by a vector network analyzer. The 0.1 CNT/MOF has a maximum absorption of -9.2 dB at 18 GHz with a thickness of 5 mm, while the 0.2 CNT/MOF has a maximum absorption of -24.32 dB at 4.5 GHz with a thickness of 5 mm, a performance maximum. Therefore, the 0.2 CNT/MOF structures are potential candidates to ameliorate the microwave absorption properties.
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Affiliation(s)
- Wang Jinxiao
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
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12
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Fu Y, Zhao G, Zhao H, Wan Z, Jia W. Investigation into a Conductive Composite Matrix Based on Magnetically Sensitive Flexible Sponges. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02239] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yu Fu
- School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou 450001, China
- Key Laboratory of Ministry of Education of Grain Information Processing and Control, Henan University of Technology, Zhengzhou 450001, China
| | - Gang Zhao
- College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Honghao Zhao
- Department of Decision Sciences, School of Business, Macau University of Science and Technology, Macau 999078, China
| | - Zhenshuai Wan
- School of Mechanical and Electrical Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Weikun Jia
- College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China
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