1
|
Munirathnam R, Seenappa L, Manjunatha HCS, Vidya YS, Sridhar KN, Murugan SVR, Manjunatha S. Synthesis and characterisation of Zn-doped cerium oxide nanoparticles for electromagnetic radiation shielding. RADIATION PROTECTION DOSIMETRY 2023; 199:2455-2463. [PMID: 38126857 DOI: 10.1093/rpd/ncad250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/10/2023] [Accepted: 06/10/2023] [Indexed: 12/23/2023]
Abstract
CeO2-NPs (nanoparticles) exhibit a variety of properties, which have prompted researchers to explore various applications, such as gas sensing, biomedical, Electromagnetic Interference (EMI) shielding, etc. Zn-doped CeO2-NPs with concentrations ranging from 7 to 11 mol were synthesised using Aloe vera extract as a reducing agent by the solution combustion method. As obtained, NPs were characterised by standard techniques. Braggs reflections confirm the formation of a single-phase cubic structure of CeO2Zn NPs. Crystalline size is calculated using both the W-H plot and the Scherrer equation, which were found to be 12 and 9 nm, respectively. The Energy-dispersive X-ray analysis (EDAX) pattern confirmed the presence of Ce, O and Zn. The direct energy band values are found to be decreasing from 3 to 2.87 eV with an increase in the doping concentration of Zn from 7 to 11 mol. Total shielding efficiency (SET) will give the best representation of shielding properties. The SEt values of CeO2Zn NPs are compared to those of other conventional materials and NP materials, finding significant applications in EMI shielding.
Collapse
Affiliation(s)
- Rajachari Munirathnam
- Department of Physics, Rajah Serfoji Government College (Autonomous), Thanjavur, Tamil Nadu 613005, India
- Department of Physics, Government College for Women, Kolar, Karnataka 563101, India
| | - Lakshmaiah Seenappa
- Department of Physics, Government First Grade College, Mulabagal-563131 Karnataka, India
| | | | | | | | | | - Shivanna Manjunatha
- Department of Chemistry, B.M.S. College of Engineering, Bengaluru, Karnataka 560019, India
| |
Collapse
|
2
|
Wang F, Liu Y, Feng R, Wang X, Han X, Du Y. A "Win-Win" Strategy to Modify Co/C Foam with Carbon Microspheres for Enhanced Dielectric Loss and Microwave Absorption Characteristics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303597. [PMID: 37528502 DOI: 10.1002/smll.202303597] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 07/15/2023] [Indexed: 08/03/2023]
Abstract
3D carbon foams have demonstrated their superiority in the field of microwave absorption recently, but the preparation processes of traditional graphene foams are complicated, while some novel carbon foams usually suffer from inadequate dielectric property. Herein, a simple "win-win" strategy is demonstrated to synchronously realize the construction of 3D Co/C foam and its surface decoration with carbon microspheres. Therein, the host Co/C foams and guest carbon microspheres interact with each other, resulting in the improvement of the dispersity of carbon microspheres and Co nanoparticles. The bilaterally synergistic effect can effectively enhance the interfacial polarization and conductive loss of these obtained samples. Electromagnetic analysis reveals that the optimized sample with moderate carbon microsphere content (about 33.5 wt%) displays a widened maximum effective absorption bandwidth of 5.2 GHz and a consolidated reflection loss intensity of -67.6 dB. Besides, the microwave absorption enhancement mechanisms are investigated and discussed in detail. It is believed that this work provides valuable ideas for the development of 3D-foam-based microwave absorbing materials for practical applications.
Collapse
Affiliation(s)
- Fengyuan Wang
- 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, China
| | - Yonglei Liu
- 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, China
| | - Rida Feng
- 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, China
| | - Xuan Wang
- 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, China
| | - Xijiang Han
- 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, China
| | - Yunchen Du
- 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, China
| |
Collapse
|
3
|
Hu B, Gai L, Liu Y, Wang P, Yu S, Zhu L, Han X, Du Y. State-of-the-art in carbides/carbon composites for electromagnetic wave absorption. iScience 2023; 26:107876. [PMID: 37767003 PMCID: PMC10520892 DOI: 10.1016/j.isci.2023.107876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023] Open
Abstract
Electromagnetic wave absorbing materials (EWAMs) have made great progress in the past decades, and are playing an increasingly important role in radiation prevention and antiradar detection due to their essential attenuation toward incident EM wave. With the flourish of nanotechnology, the design of high-performance EWAMs is not just dependent on the intrinsic characteristics of single-component medium, but pays more attention to the synergistic effects from different components to generate rich loss mechanisms. Among various candidates, carbides and carbon materials are usually labeled with the features of chemical stability, low density, tunable dielectric property, and diversified morphology/microstructure, and thus the combination of carbides and carbon materials will be a promising way to acquire new EWAMs with good practical application prospects. In this review, we introduce EM loss mechanisms related to dielectric composites, and then highlight the state-of-the-art progress in carbides/carbon composites as high-performance EWAMs, including silicon carbide/carbon, MXene/carbon, molybdenum carbide/carbon, as well as some uncommon carbides/carbon composites and multicomponent composites. The critical information regarding composition optimization, structural engineering, performance reinforcement, and structure-function relationship are discussed in detail. In addition, some challenges and perspectives for the development of carbides/carbon composites are also proposed after comparing the performance of some representative composites.
Collapse
Affiliation(s)
- Bo Hu
- 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, China
| | - Lixue Gai
- 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, China
| | - Yonglei Liu
- 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, China
| | - Pan Wang
- 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, China
| | - Shuping Yu
- 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, China
| | - Li Zhu
- 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, China
| | - Xijiang Han
- 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, China
| | - Yunchen Du
- 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, China
| |
Collapse
|
4
|
Jia X, Li Z, Ruan C, Lian Y. The Improved Microwave Absorption Performance of the 3D Porous (Ni@NO-C) n/NO-C Composite Absorber. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2772. [PMID: 37887922 PMCID: PMC10609328 DOI: 10.3390/nano13202772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 10/04/2023] [Accepted: 10/11/2023] [Indexed: 10/28/2023]
Abstract
Microwave absorbers that are lightweight and have good stability and high efficiency have attracted much attention for their applications in many contemporary fields. In this work, a 3D porous (Ni@NO-C)n/NO-C composite absorber was prepared using a wet chemistry method with Ni chains and melamine as precursors, in which NO-C (N,O-doped carbon)-encapsulated Ni particles are homogenously dispersed in the 3D porous networks of NO-C in the form of (Ni@NO-C)n chains. The special microstructure of the as-prepared material is proven to be beneficial for the improvement of its microwave absorption performance. The as-synthesized (Ni@NO-C)n/NO-C composite absorber exhibited an effective absorption bandwidth of 4.1 GHz and an extremely large reflection loss of -72.3 dB. The excellent microwave-absorbing performances can be ascribed to the cooperative consequences of dielectric loss and magnetic loss, along with the balance between attenuation capability and impedance matching.
Collapse
Affiliation(s)
- Xinmeng Jia
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China (C.R.)
| | - Zhigang Li
- Heilongjiang Institute of Atomic Energy, Harbin 150086, China;
| | - Chao Ruan
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China (C.R.)
| | - Yongfu Lian
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China (C.R.)
| |
Collapse
|
5
|
Luo Z, Wang Z, Liu J, Jin H, Han C, Wang X. Hierarchical Carbon Network Composites Derived from ZIF-8 for High-Efficiency Microwave Absorption. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16093380. [PMID: 37176261 PMCID: PMC10180149 DOI: 10.3390/ma16093380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/15/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023]
Abstract
Metal-organic framework (MOF)-derived composites have gained wide attention due to their specific structures and enhanced performance. In this work, we prepared carbon nanotubes with Fe nanoparticles connected to two-dimensional (2D) hierarchical carbon network composites via a low-pressure gas-solid reaction strategy. Specifically, the three-dimensional (3D) networks derived from ZIF-8 exploited the carbon nanotubes with the function of charge modulation. Meanwhile, we utilized the interconnected 2D nanostructures to optimize impedance matching and facilitate multiple scattering, ultimately improving the overall microwave absorption performance. Furthermore, based on the well-designed structures, the composites prepared at 800 °C (Fe-N-C@CNTs-800) achieved the best reflection loss (RL) of -58.5 dB, thereby obtaining superior microwave absorption performance. Overall, this study provides a good groundwork for further investigation into the modification and dimension design of novel hierarchical microwave absorbers.
Collapse
Affiliation(s)
- Zhongyi Luo
- Department of Physical Science & Technology, School of Science, Wuhan University of Technology, Wuhan 430070, China
| | - Zhaohao Wang
- School of Chemistry and Chemical Engineering, Hubei Polytechnic University, Huangshi 435003, China
| | - Jinshuai Liu
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
- Hainan Institute, Wuhan University of Technology, Sanya 572000, China
| | - Huihui Jin
- Department of Physical Science & Technology, School of Science, Wuhan University of Technology, Wuhan 430070, China
| | - Chunhua Han
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China
- Hainan Institute, Wuhan University of Technology, Sanya 572000, China
- Hubei Longzhong Laboratory, Wuhan University of Technology (Xiangyang Demonstration Zone), Xiangyang 441000, China
| | - Xuanpeng Wang
- Department of Physical Science & Technology, School of Science, Wuhan University of Technology, Wuhan 430070, China
- Hainan Institute, Wuhan University of Technology, Sanya 572000, China
- Hubei Longzhong Laboratory, Wuhan University of Technology (Xiangyang Demonstration Zone), Xiangyang 441000, China
| |
Collapse
|
6
|
Yang G, Wen B, Zhou Z, Wang S, Zhao H, Ding S, Yan W. Flexible cobalt nanoparticles/carbon nanofibers with macroporous structures toward superior electromagnetic wave absorption. J Colloid Interface Sci 2023; 636:194-203. [PMID: 36630856 DOI: 10.1016/j.jcis.2022.12.158] [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: 10/09/2022] [Revised: 12/10/2022] [Accepted: 12/28/2022] [Indexed: 01/02/2023]
Abstract
The increasing electromagnetic (EM) pollution that has seriously threatened human health and electronic devices urgently required high-performance absorbents toward attenuating EM wave (EMW). The combination of microstructure modulation and appropriate components regulation has proven to be a feasible strategy for improving the EMW absorption performance of absorbents. In this work, well-designed one-dimensional carbon nanofibers with macroporous structures and uniformly magnetic metal nanoparticles modification were prepared by the hard-template assisted electrospinning method followed by carbonization and template-elimination processes. The strong interfacial polarization loss and multireflection strengthened by the hollow structures and the magnetic loss induced by the introduced cobalt nanoparticles evidently enhanced the impedance matching level of the macroporous carbon nanofibers/cobalt nanoparticles (MCF/Co). As a result, MCF/Co composite offers broad absorption bandwidth (6.24 GHz) and strong electromagnetic wave absorption performance (-40.1 dB) at a thickness of 3.0 mm. This work inspires the rational one-dimensional macroporous carbon nanofibers design for new-generation EMW materials and provides an important research basis for the porous flexible EMW absorption materials.
Collapse
Affiliation(s)
- 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
| | - 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
| | - Ziyi 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
| | - Silan Wang
- Department of Environmental Science & Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Hongyang Zhao
- 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.
| | - Wei Yan
- Department of Environmental Science & Engineering, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
| |
Collapse
|
7
|
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.
Collapse
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.
| |
Collapse
|
8
|
Hao Z, Liu J, He X, Meng Y, Wang X, Liu D, Yang N, Hou W, Bian C. Electromagnetic absorption enhancing mechanisms by modified biochar derived from Enteromorpha prolifera: a combined experimental and simulation study. NANOSCALE 2022; 14:14508-14519. [PMID: 36156672 DOI: 10.1039/d2nr04162f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Although the rapid advances of wireless technologies and electronic devices largely improve the quality of life, electromagnetic (EM) pollution increases the risk of exposure to EM radiation. Developing high-efficiency absorbers with a rational structure and wideband characteristics is of great significance to eliminate radiation pollution. Herein, Enteromorpha prolifera derived biochar which would provide a suitable surface and multiple polarizations has been prepared as the supporter to anchor nanoparticles. In addition, theoretical simulation results further confirm that radar wave scattering could be largely inhibited after coating with absorbing materials. As a result, the hybrid absorbers achieve remarkable EM absorption properties attributed to the synergistic magnetic-dielectric loss. Elaborate compositional and structural characterization studies indicate that the absorber has a large specific area and numerous polarization centers, which would make full use of waste biomass as light weight and broadband high-performance EM absorption materials.
Collapse
Affiliation(s)
- Zhiwang Hao
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255049, China.
| | - Jimei Liu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255049, China.
| | - Xinliang He
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255049, China.
| | - Yubo Meng
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255049, China.
| | - Xiaobin Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255049, China.
| | - Dong Liu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255049, China.
| | - Naitao Yang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255049, China.
| | - Wenjie Hou
- School of Computer Science and Technology, Northwestern Polytechnical University, Xi'an, 710129, China.
| | - Chao Bian
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo, 255049, China.
| |
Collapse
|
9
|
Zhang X, Fan Y, Wang J, Xian G, Liu Z, Xie A, Wang Y, Li J, Liu Y, Gao J, Kong LB. Synergistic effect of niobium oxide and cobalt on electromagnetic properties of dodecahedron-carbon composites. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123122] [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]
|
10
|
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.
Collapse
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
| |
Collapse
|
11
|
Facile construction of core-shell Carbon@CoNiO 2 derived from yeast for broadband and high-efficiency microwave absorption. J Colloid Interface Sci 2022; 625:415-424. [PMID: 35724464 DOI: 10.1016/j.jcis.2022.06.012] [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: 04/18/2022] [Revised: 05/28/2022] [Accepted: 06/04/2022] [Indexed: 11/20/2022]
Abstract
Manufacturing dielectric/magnetic composites with hierarchical structure is regard as a promising strategy for the progress of high-performance microwave absorption (MA) materials. In this paper, the nano-grass structured CoNiO2 magnetic shell was uniformly anchored on the yeast-derived carbon microspheres by in-situ one-pot synthesis method. Profiting from the unique nano-grass and core-shell structure, capable dielectric/magnetic loss, along with improved impedance matching, the prepared absorber realizes desirable MA performance. The minimum reflection loss (RLmin) reaches up to -44.06 dB at 6.56 GHz. Moreover, the effective absorption bandwidth (EAB, reflection loss (RL) < -10 dB) accomplishes 7.04 GHz under a low filler loading of 20 wt%. This work endeavors a valuable insight for designing innovative core-shell structured materials with high-efficiency MA and broad bandwidth.
Collapse
|
12
|
Zhang X, Fan Y, Wang J, Xie A, Liu Y, Bing Kong L, Hu L, Li C, Chen H, Wu G. Enhanced microwave absorption performance of nitrogen-doped porous carbon dodecahedrons composite embedded with ceric dioxide. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103527] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
13
|
Wang C, Feng Y, Zhou J, Wen G, Xia L. Numerical analysis, experimental verification and criterion establishment of non-magnetic microwave absorbing material. J Colloid Interface Sci 2022; 613:256-264. [PMID: 35042026 DOI: 10.1016/j.jcis.2022.01.052] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 10/19/2022]
Abstract
Non-magnetic materials show a great potentiality in microwave absorption with the advantages of low-density, wideband, and thin thickness. Even so, it is still difficult to accurately analyze the connection between performance and parameters. To reveal what electromagnetic parameters could lead to excellent absorbing performance, we simplify and derive the formulae based on Transmission-Reflection-Line theory (TRL) and computer programs. Based on the relation of ε' and ε'', a criterion is established to decide what parameters have the possibility of absorbing performance. Using a new fitting method, the relationship between dielectric constant and absorber content is established. Further, an instruction derived from the relation between ε' and p is used to screen thicknesses. The optimum permittivity of ultra-low reflectivity and ultra-wide band is obtained by combining the numerical analysis results. To verify the accuracy and reliability of results and deductions, the permittivity of four prepared materials and fifty published papers are investigated.
Collapse
Affiliation(s)
- Chi Wang
- School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, China
| | - Yuming Feng
- School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, China
| | - Junjie Zhou
- School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, China
| | - Guangwu Wen
- School of Materials Science and Engineering, Shandong University of Technology, Zibo 255000, China
| | - Long Xia
- School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, China.
| |
Collapse
|
14
|
Ning M, Lei Z, Tan G, Man Q, Li J, Li RW. Dumbbell-Like Fe 3O 4@N-Doped Carbon@2H/1T-MoS 2 with Tailored Magnetic and Dielectric Loss for Efficient Microwave Absorbing. ACS APPLIED MATERIALS & INTERFACES 2021; 13:47061-47071. [PMID: 34559519 DOI: 10.1021/acsami.1c13852] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Ferroferric oxide (Fe3O4)/C composites have received much attention as a result of converting electromagnetic waves to heat for harvesting efficient electromagnetic wave (EMW) absorbing performance. However, the practical EMW absorbing of these absorbers is still greatly hindered by the unmatched impedance properties and limited EMW absorbing ability. Tuning the morphologies at nanoscale and assembling the nanoarchitecture construction are essential to address this issue. Herein, dumbbell-like Fe3O4@N-doped carbon (NC)@2H/1T-MoS2 yolk-shell nanostructures are rationally designed and fabricated via a facile etching and wet chemical synthesis strategy. By manipulating the etching time toward the magnetic Fe3O4 component, the dielectric and magnetic loss of absorbers could be well-tuned, thus achieving the optimized impedance characteristics. As a result, the maximum refection losses (RLmaxs) of Fe3O4@NC-9h and Fe3O4@NC-15h are -19.8 dB@7.9 GHz and -39.5 dB@8.3 GHz, respectively. Moreover, the MoS2 nanosheets with a mixed 2H/1T phase anchored on Fe3O4@NC-15h (Fe3O4@NC-15h@MoS2) further boost the RLmax to -68.9 dB@5.8 GHz with an effective absorbing bandwidth of ∼5.25 GHz. The tailored synergistic effect between dielectric and magnetic loss and the introduced interfacial polarization (Fe3O4@NC/MoS2) are discussed to explain the drastically enhanced microwave absorbing ability. This work opens up new possibilities for effective manipulation of electromagnetic wave attenuation performance in magnetic-dielectric-type nanostructures.
Collapse
Affiliation(s)
- Mingqiang Ning
- CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
- Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
| | - Zhenkuang Lei
- CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
- Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
| | - Guoguo Tan
- CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
- Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
| | - Qikui Man
- CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
- Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
| | - JingBo Li
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Run-Wei Li
- CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
- Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, China
| |
Collapse
|
15
|
He Z, Xie H, Wu H, Chen J, Ma S, Duan X, Chen A, Kong Z. Recent Advances in MXene/Polyaniline-Based Composites for Electrochemical Devices and Electromagnetic Interference Shielding Applications. ACS OMEGA 2021; 6:22468-22477. [PMID: 34514219 PMCID: PMC8427631 DOI: 10.1021/acsomega.1c02996] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/12/2021] [Indexed: 06/13/2023]
Abstract
Due to serious global warming and environmental issues, the demand for clean and sustainable energy storage devices is significantly increased. Often accompanied by rapid growth of portable electronic vehicles and devices, massive electromagnetic wave pollution becomes unavoidable. To mitigate the above two issues, this mini-review summaries preparation methods and recent developments of MXene/polyaniline-based composites for their applications in electrochemical devices and electromagnetic interference shielding. Based on excellent synergistic effects between single compounds and designed hierarchical structures, MXene/polyaniline-based composites usually exhibit enhanced physical and chemical properties, showing great potentials in sustainable electrochemical properties and electromagnetic wave protections for human health as well as normal operation of precise electronic devices.
Collapse
Affiliation(s)
- Zhiwei He
- Center
for Advanced Optoelectronic Materials, Key Laboratory of Novel Materials
for Sensor of Zhejiang Province, College of Materials and Environmental
Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Hangming Xie
- School
of Electronics Information, Hangzhou Dianzi
University, Hangzhou 310018, China
| | - Hanqing Wu
- School
of Mechanical Engineering, Hangzhou Dianzi
University, Hangzhou 310018, China
| | - Jiahao Chen
- Center
for Advanced Optoelectronic Materials, Key Laboratory of Novel Materials
for Sensor of Zhejiang Province, College of Materials and Environmental
Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Shiyu Ma
- Center
for Advanced Optoelectronic Materials, Key Laboratory of Novel Materials
for Sensor of Zhejiang Province, College of Materials and Environmental
Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Xing Duan
- Center
for Advanced Optoelectronic Materials, Key Laboratory of Novel Materials
for Sensor of Zhejiang Province, College of Materials and Environmental
Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Aqing Chen
- Center
for Advanced Optoelectronic Materials, Key Laboratory of Novel Materials
for Sensor of Zhejiang Province, College of Materials and Environmental
Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Zhe Kong
- Center
for Advanced Optoelectronic Materials, Key Laboratory of Novel Materials
for Sensor of Zhejiang Province, College of Materials and Environmental
Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| |
Collapse
|
16
|
Fang JW, Ma Y, Zhang ZY, Yang BZ, Li YS, Hu YY, Yin YH, Liu XB, Wu ZP. Metal-Organic Framework-Derived Carbon/Carbon Nanotubes Mediate Impedance Matching for Strong Microwave Absorption at Fairly Low Temperatures. ACS APPLIED MATERIALS & INTERFACES 2021; 13:33496-33504. [PMID: 34228430 DOI: 10.1021/acsami.1c07792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The use of magnetic particles and carbon materials, particularly those with compatible dielectric and magnetic loss, is crucial in managing microwave pollution. However, the mismatched impedance of currently available absorbers constrains their practical applications. Herein, we demonstrate the potential of a metal-organic framework (MOF)-derived composite whose impedance matching is optimized through spraying and immersion of MOF precursors in carbon nanotube socks followed by carbonization. The composite presents extremely strong microwave absorption with a reflection loss of -30 dB, a thin thickness of 1.5 mm, and a wide frequency bandwidth of 7.8 GHz. The excellent absorption can still be maintained even at a fairly low temperature of -40 °C. Such results are primarily attributed to the synergistic effect between the hierarchical architecture and multiple components that greatly optimizes the impedance matching. We believe that the composite is a promising microwave absorber that can help to solve the critical electromagnetic wave pollution.
Collapse
Affiliation(s)
- Jia Wen Fang
- Ganzhou Key Laboratory of Advanced Metals and Functional Materials, School of Materials Science and Engineering, Jiangxi University of Science & Technology (JXUST), Ganzhou 341000, P. R. China
| | - Yuan Ma
- Ganzhou Key Laboratory of Advanced Metals and Functional Materials, School of Materials Science and Engineering, Jiangxi University of Science & Technology (JXUST), Ganzhou 341000, P. R. China
| | - Zhi Yong Zhang
- Ganzhou Key Laboratory of Advanced Metals and Functional Materials, School of Materials Science and Engineering, Jiangxi University of Science & Technology (JXUST), Ganzhou 341000, P. R. China
| | - Bin Ze Yang
- Ganzhou Key Laboratory of Advanced Metals and Functional Materials, School of Materials Science and Engineering, Jiangxi University of Science & Technology (JXUST), Ganzhou 341000, P. R. China
| | - Ye Sheng Li
- Ganzhou Key Laboratory of Advanced Metals and Functional Materials, School of Materials Science and Engineering, Jiangxi University of Science & Technology (JXUST), Ganzhou 341000, P. R. China
| | - Ying Yan Hu
- Ganzhou Key Laboratory of Advanced Metals and Functional Materials, School of Materials Science and Engineering, Jiangxi University of Science & Technology (JXUST), Ganzhou 341000, P. R. China
| | - Yan Hong Yin
- Ganzhou Key Laboratory of Advanced Metals and Functional Materials, School of Materials Science and Engineering, Jiangxi University of Science & Technology (JXUST), Ganzhou 341000, P. R. China
| | - Xian Bin Liu
- Ganzhou Key Laboratory of Advanced Metals and Functional Materials, School of Materials Science and Engineering, Jiangxi University of Science & Technology (JXUST), Ganzhou 341000, P. R. China
| | - Zi Ping Wu
- Ganzhou Key Laboratory of Advanced Metals and Functional Materials, School of Materials Science and Engineering, Jiangxi University of Science & Technology (JXUST), Ganzhou 341000, P. R. China
| |
Collapse
|
17
|
Wang L, Li X, Shi X, Huang M, Li X, Zeng Q, Che R. Recent progress of microwave absorption microspheres by magnetic-dielectric synergy. NANOSCALE 2021; 13:2136-2156. [PMID: 33471004 DOI: 10.1039/d0nr06267g] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Designing and developing high-performance microwave absorption (MA) materials for electromagnetic protection and radar detection have received widespread attention. Recently, magnetic-dielectric MA materials have become a research hotspot due to their unique complementary functions and synergy loss mechanism. Herein, we review important research progress of excellent MA systems combining strong magnetic components and dielectric substrates. The functional materials involve magnetic materials, carbon components, semiconductors, polymer and so on. For a comprehensive analysis, current development and challenges are firstly introduced in the background. Modern requirements for microwave energy conversion are elaborated in the following part. To highlight the key points, more attention has been paid to the magnetic-dielectric synergy microsphere: (i) core/yolk-shell structure, (ii) multi-component assembly and (iii) MOF-derived synergy composites. Meanwhile, classical and typical high-performance MA composites with a multi-loss mechanism are also mentioned in this review paper. Finally, the design principles, electromagnetic synergy, future mechanism exploration and device application are presented, which provides guidance for understanding MA materials.
Collapse
Affiliation(s)
- Lei Wang
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China.
| | - Xiao Li
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China.
| | - Xiaofeng Shi
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China.
| | - Mengqiu Huang
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China.
| | - Xiaohui Li
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China.
| | - Qingwen Zeng
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China.
| | - Renchao Che
- Laboratory of Advanced Materials, Department of Materials Science and Collaborative Innovation Center of Chemistry for Energy Materials (iChem), Fudan University, Shanghai 200438, P. R. China.
| |
Collapse
|
18
|
Kang S, Qiao S, Cao Y, Hu Z, Yu J, Wang Y, Zhu J. Hyper-Cross-Linked Polymers-Derived Porous Tubular Carbon Nanofibers@TiO 2 toward a Wide-Band and Lightweight Microwave Absorbent at a Low Loading Content. ACS APPLIED MATERIALS & INTERFACES 2020; 12:46455-46465. [PMID: 32991137 DOI: 10.1021/acsami.0c11839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
An enormous challenge exists in the achievement of one-dimensional (1D) dielectric carbon composite high-performance microwave absorbents at a low filling ratio. Porous/core-shell dual microstructures have been considered as the potential candidate for designing remarkable microwave absorbers with strong absorption and wide band. Herein, novel multiple-structured tubular carbon nanofibers@TiO2 (TCNFs@TiO2) hybrids were constructed via the sequential steps of hydrolysis and pyrolysis. The dielectric properties of the as-prepared composites can be tuned by adjusting the relative content of the TiO2 shell and carbonaceous temperature to enhance the impedance matching behavior. Notably, the minimum reflection loss (RLmin) value reaches up to -61.2 dB with an effective absorption bandwidth (EAB) of 3.2 GHz at 3 mm, and the EAB can cover 5.3 GHz with a thickness of merely 2 mm when 1.3 mL of tetrabutyl titanate (TBT) and 700 °C pyrolysis temperature are optimized, respectively. Delightedly, the mixing ratio is only 10 wt %, outperforming that of the most-related composites. The heterogeneous interfaces in TCNFs-TiO2 are beneficial for the interfacial polarization relaxation. Besides, the hybrids are enriched with numerous pores to favor the lightweight absorbers. The desirable design in the microstructure can provide a promising route in wide-band and lightweight microwave absorbents.
Collapse
Affiliation(s)
- Shuai Kang
- College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Shiya Qiao
- Shanghai Collaborative Innovation Center for High Performance Fiber Composites, Donghua University, Shanghai 201620, China
| | - Yutong Cao
- Sinochem International Corporation, Shanghai 200126, China
| | - Zuming Hu
- College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China
| | - Junrong Yu
- College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China
| | - Yan Wang
- College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Jing Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China
| |
Collapse
|
19
|
Zhao H, Xu X, Wang Y, Fan D, Liu D, Lin K, Xu P, Han X, Du Y. Heterogeneous Interface Induced the Formation of Hierarchically Hollow Carbon Microcubes against Electromagnetic Pollution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2003407. [PMID: 33015974 DOI: 10.1002/smll.202003407] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/08/2020] [Indexed: 05/25/2023]
Abstract
Carbon materials with multilevel structural features are showing great potentials in electromagnetic (EM) pollution precaution. With ZIF-67 microcubes as a self-sacrificing precursor, hierarchical carbon microcubes with micro/mesoporous shells and hollow cavities have been successfully fabricated with the assistance of rigid SiO2 coating layers. It is found that the SiO2 layer can effectively counteract the inward shrinkage of organic frameworks during high-temperature pyrolysis due to intensive interfacial interaction. The obtained hollow porous carbon microcubes (HPCMCs) exhibit larger Brunauer-Emmett-Teller surface area and pore volume than porous carbon microcubes (PCMCs) directly derived from ZIF-67 microcubes. The unique microstructure is confirmed to be favorable for conductive loss and interfacial polarization, thus boosting the overall dielectric loss capability of carbon materials. Besides, hollow cavity will also promote multiple reflection of incident EM waves and intensify the dissipation of EM energy. As expected, HPCMCs harvest better microwave absorption performance, including strong reflection loss intensity and broad response bandwidth, than many traditional microporous/mesoporous carbon materials. This study provides a new strategy for the construction of hierarchical carbon materials and may inspire the design of carbon-based composites with excellent EM functions.
Collapse
Affiliation(s)
- Honghong Zhao
- 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, China
| | - Xianzhu Xu
- 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, China
| | - Yahui Wang
- 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, China
| | - Dingge Fan
- 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, China
| | - Dawei Liu
- 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, China
| | - Kaifeng Lin
- 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, China
| | - Ping Xu
- 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, China
| | - Xijiang Han
- 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, China
| | - Yunchen Du
- 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, China
| |
Collapse
|
20
|
Lian Y, Han B, Liu D, Wang Y, Zhao H, Xu P, Han X, Du Y. Solvent-Free Synthesis of Ultrafine Tungsten Carbide Nanoparticles-Decorated Carbon Nanosheets for Microwave Absorption. NANO-MICRO LETTERS 2020; 12:153. [PMID: 34138171 PMCID: PMC7770940 DOI: 10.1007/s40820-020-00491-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 06/15/2020] [Indexed: 04/14/2023]
Abstract
Carbides/carbon composites are emerging as a new kind of binary dielectric systems with good microwave absorption performance. Herein, we obtain a series of tungsten carbide/carbon composites through a simple solvent-free strategy, where the solid mixture of dicyandiamide (DCA) and ammonium metatungstate (AM) is employed as the precursor. Ultrafine cubic WC1-x nanoparticles (3-4 nm) are in situ generated and uniformly dispersed on carbon nanosheets. This configuration overcomes some disadvantages of conventional carbides/carbon composites and is greatly helpful for electromagnetic dissipation. It is found that the weight ratio of DCA to AM can regulate chemical composition of these composites, while less impact on the average size of WC1-x nanoparticles. With the increase in carbon nanosheets, the relative complex permittivity and dielectric loss ability are constantly enhanced through conductive loss and polarization relaxation. The different dielectric properties endow these composites with distinguishable attenuation ability and impedance matching. When DCA/AM weight ratio is 6.0, the optimized composite can produce good microwave absorption performance, whose strongest reflection loss intensity reaches up to - 55.6 dB at 17.5 GHz and qualified absorption bandwidth covers 3.6-18.0 GHz by manipulating the thickness from 1.0 to 5.0 mm. Such a performance is superior to many conventional carbides/carbon composites.
Collapse
Affiliation(s)
- Yunlong Lian
- 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
| | - Binhua Han
- 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
| | - Dawei Liu
- 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
| | - Yahui Wang
- 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
| | - Honghong Zhao
- 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
| | - Ping Xu
- 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
| | - Xijiang Han
- 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.
| | - Yunchen Du
- 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.
| |
Collapse
|
21
|
Zhou P, Zhang J, Zhu H, Wang L, Wang X, Song Z, Zhang Q, Yu M, Liu Z, Xu T, Feng W, Feng X. Silica-Modified Ordered Mesoporous Carbon for Optimized Impedance-Matching Characteristic Enabling Lightweight and Effective Microwave Absorbers. ACS APPLIED MATERIALS & INTERFACES 2020; 12:23252-23260. [PMID: 32343542 DOI: 10.1021/acsami.9b23287] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Ordered mesoporous carbon (OMC) is considered to be a prospective carbon-based material for microwave absorption because of its abundant well-ordered mesoporous structures, high specific surface area, numerous active sites, and facile preparation process. However, its development has been seriously hindered by its poor impedance-matching characteristic. Herein, silica-modified OMC composites with a designable impedance-matching transition layer are successfully fabricated via a self-assembly method and succeeding calcination treatment. In addition, the silica in OMC@SiO2 composites can maintain the mesoporous structure, which facilitates the scattering and reflection of microwaves in the tunnel structure. The as-prepared sample OMC-5@SiO2 exhibits a minimum reflection loss (RL) value of -40.7 dB at 10.8 GHz with 2 mm and an effective absorption bandwidth (RL ≤ -10 dB) of 4.8 GHz with a thinner absorber thickness of 1.5 mm. We believe that the as-prepared OMC@SiO2 composites can be prospective candidates as high-efficiency and lightweight microwave absorbers.
Collapse
Affiliation(s)
- Panpan Zhou
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing 210009, China
| | - Jing Zhang
- China Geological Survey, Nanjing Center, Nanjing 210016, China
- Supervision and Testing Center of East China, Mineral Resources of the Ministry of Land and Resources, Nanjing 210016, China
| | - Hongli Zhu
- Institute 53 of China's Ordnance Industry, Jinan 250031, China
| | - Lixi Wang
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing 210009, China
| | - Xiaokang Wang
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Zhi Song
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Qitu Zhang
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China
- Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites, Nanjing 210009, China
| | - Mingxun Yu
- Institute 53 of China's Ordnance Industry, Jinan 250031, China
| | - Zhihao Liu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Tong Xu
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Wanxun Feng
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Xia Feng
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China
| |
Collapse
|
22
|
Han H, Lou Z, Wang P, Wang Q, Li R, Zhang Y, Li Y. Synthesis of Ultralight and Porous Magnetic g-C3N4/g-Carbon Foams with Excellent Electromagnetic Wave (EMW) Absorption Performance and Their Application as a Reinforcing Agent for 3D Printing EMW Absorbers. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00665] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- He Han
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Zhichao Lou
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
| | - Peng Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Qiuyi Wang
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Ru Li
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yao Zhang
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yanjun Li
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| |
Collapse
|