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Lin J, Wu Q, Qiao J, Zheng S, Liu W, Wu L, Liu J, Zeng Z. A review on composite strategy of MOF derivatives for improving electromagnetic wave absorption. iScience 2023; 26:107132. [PMID: 37456858 PMCID: PMC10338214 DOI: 10.1016/j.isci.2023.107132] [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: 07/18/2023] Open
Abstract
To address the electromagnetic wave (EMW) pollution issues caused by the development of electronics and wireless communication technology, it is urgent to develop efficient EMW-absorbing materials. With controllable composition, diverse structure, high porosity, and large specific surface area, metal-organic framework (MOF) derivatives have sparked the infinite passion and creativity of researchers in the electromagnetic field. Against the challenges of poor inherent impedance matching and insufficient attenuation capability of pure MOF derivative, designing and developing MOF derivative-based composites by compounding MOF with other materials, such as graphene, CNTs, MXene, and so on, has been an effective strategy for constructing high-efficiency EMW absorbing materials. This review systematically expounds the research progress of MOF derivative-based composite strategies, and discusses the challenges and opportunities faced by MOF derivatives in the field of EMW absorption. This work can provide some good ideas for researchers to design and prepare high-efficiency MOF-based EMW absorbing materials in applications of next-generation electronics and aerospace.
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Affiliation(s)
- Jingpeng Lin
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, PR China
| | - Qilei Wu
- Science and Technology on Electromagnetic Compatibility Laboratory, China Ship Development and Design Centre, Wuhan 430064, PR China
| | - Jing Qiao
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, PR China
| | - Sinan Zheng
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, PR China
| | - Wei Liu
- Institute of Crystal Materials, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
- Shenzhen Research Institute of Shandong University, Shenzhen 518063, PR China
| | - Lili Wu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, PR China
| | - Jiurong Liu
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, PR China
| | - Zhihui Zeng
- Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, PR China
- Suzhou Research Institute of Shandong University, Suzhou 215123, PR China
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2
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Shu R, Zhao Z, Yang X. Synthesis of hollow CuFe 2O 4 microspheres decorated nitrogen-doped graphene hybrid composites for broadband and efficient electromagnetic absorption. J Colloid Interface Sci 2023; 648:66-77. [PMID: 37295371 DOI: 10.1016/j.jcis.2023.06.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/02/2023] [Accepted: 06/04/2023] [Indexed: 06/12/2023]
Abstract
The development of graphene-based electromagnetic wave (EMW) absorbers with broad bandwidth, strong absorption and low filling ratio remains a big challenge. In this work, hollow copper ferrite microspheres decorated nitrogen-doped reduced graphene oxide (NRGO/hollow CuFe2O4) hybrid composites were prepared by a two-step route of solvothermal reaction and hydrothermal synthesis. Results of microscopic morphology analysis showed that the NRGO/hollow CuFe2O4 hybrid composites had a special entanglement structure between hollow CuFe2O4 microspheres and wrinkled NRGO. Moreover, the EMW absorption properties of as-prepared hybrid composites could be regulated by changing the additive amounts of hollow CuFe2O4. It was worth noting that when the additive amount of hollow CuFe2O4 was 15.0 mg, the attained hybrid composites showed the optimal EMW absorption performance. The minimum reflection loss reached up to -34.18 dB at a thin matching thickness of 1.98 mm and a low filling ratio of 20.0 wt%, and the corresponding effective absorption bandwidth was as large as 5.92 GHz, covering almost the whole Ku band. Furthermore, when the matching thickness was increased to 3.02 mm, the EMW absorption capacity was significantly enhanced, and the optimal reflection loss value of -58.45 dB was achieved. In addition, the possible EMW absorption mechanisms were proposed. Therefore, the structural design and composition regulation strategy presented in this work would provide a great reference value for the preparation of broadband and efficient graphene-based EMW absorbing materials.
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Affiliation(s)
- Ruiwen Shu
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, 232001, China; School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, China; Joint National-Local Engineering Research Centre for Safe and Precise Coal Mining, Anhui University of Science and Technology, Huainan, 232001, China.
| | - Ziwei Zhao
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, China
| | - Xunhong Yang
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, China
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3
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Li W, Li B, Zhao Y, Wei X, Guo F. Facile synthesis of Fe 3O 4 nanoparticles/reduced graphene oxide sandwich composites for highly efficient microwave absorption. J Colloid Interface Sci 2023; 645:76-85. [PMID: 37146381 DOI: 10.1016/j.jcis.2023.04.131] [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: 02/01/2023] [Revised: 03/31/2023] [Accepted: 04/24/2023] [Indexed: 05/07/2023]
Abstract
Component regulation and microstructure design are two effective strategies to adjust electromagnetic parameters and improve the microwave absorption performance of materials. In this study, a facile synthesis strategy consisting of ultrasonic dispersion, blast drying, and roasting is proposed to build a sandwich-like graphene-based absorbent, in which Fe3O4 nanoparticles with adjustable content are sandwiched uniformly between reduced graphene oxide nanosheets. The sandwich structure can form multiple interfaces, prevent the aggregation of nanoparticles, facilitate interface polarization, and endow the material with multiple electromagnetic loss mechanisms, which is very beneficial for impedance matching and microwave attenuation. Notably, the effective absorption bandwidth achieves 5.7 GHz, and the minimum reflection loss value is -49.9 dB. In addition, the synthesis process is simple and suitable for large-scale production and possible industrial applications. Thus, this facile route to fabricate sandwich-like graphene-based absorbents provides new ideas and approaches for designing new graphene-based nanocomposites.
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Affiliation(s)
- Wanxi Li
- Department of Materials Science and Engineering, Jinzhong University, Jinzhong 030619, PR China.
| | - Boqiong Li
- Department of Materials Science and Engineering, Jinzhong University, Jinzhong 030619, PR China
| | - Yali Zhao
- Department of Materials Science and Engineering, Jinzhong University, Jinzhong 030619, PR China
| | - Xiaoqin Wei
- Department of Materials Science and Engineering, Jinzhong University, Jinzhong 030619, PR China
| | - Fang Guo
- Department of Materials Science and Engineering, Jinzhong University, Jinzhong 030619, PR China
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4
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Li W, Guo F, Zhao Y, Liu Y. A Sustainable and Low-Cost Route to Design NiFe 2O 4 Nanoparticles/Biomass-Based Carbon Fibers with Broadband Microwave Absorption. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4063. [PMID: 36432351 PMCID: PMC9693991 DOI: 10.3390/nano12224063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/13/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
Carbon-based microwave-absorbing materials with a low cost, simple preparation process, and excellent microwave absorption performance have important application value. In this paper, biomass-based carbon fibers were prepared using cotton fiber, hemp fiber, and bamboo fiber as carbon sources. Then, the precise loading of NiFe2O4 nanoparticles on biomass-based carbon fibers with the loading amount in a wide range was successfully realized through a sustainable and low-cost route. The effects of the composition and structure of NiFe2O4/biomass-based carbon fibers on electromagnetic parameters and electromagnetic absorption properties were systematically studied. The results show that the impedance matching is optimized, and the microwave absorption performance is improved after loading NiFe2O4 nanoparticles on biomass-based carbon fibers. In particular, when the weight percentage of NiFe2O4 nanoparticles in NiFe2O4/carbonized cotton fibers is 42.3%, the effective bandwidth of NiFe2O4/carbonized cotton fibers can reach 6.5 GHz with a minimum reflection loss of -45.3 dB. The enhancement of microwave absorption performance is mainly attributed to the appropriate electromagnetic parameters with the ε' ranging from 9.2 to 4.8, and the balance of impedance matching and electromagnetic loss. Given the simple synthesis method, low cost, high output, and excellent microwave absorption performance, the NiFe2O4/biomass-based carbon fibers have broad application prospects as an economic and broadband microwave absorbent.
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Li W, Guo F, Zhao Y, Liu Y, Du Y. Facile Synthesis of Metal Oxide Decorated Carbonized Bamboo Fibers with Wideband Microwave Absorption. ACS OMEGA 2022; 7:39019-39027. [PMID: 36340137 PMCID: PMC9631727 DOI: 10.1021/acsomega.2c04767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Aiming at the disadvantages of high cost, complex processes, low yield, and narrow bandwidth of carbon-based microwave absorbing materials, this paper provides a novel and efficient method for synthesizing metal oxide/carbonized bamboo fibers using renewable natural bamboo fibers as a carbon source. The results suggested that the metal oxides such as NiO and Fe3O4 were uniformly dispersed on the carbonized bamboo fibers and proved that the dielectric component NiO and magnetic component Fe3O4 can significantly improve the microwave absorption performance of the carbonized bamboo fibers. As expected, the NiO/carbonized bamboo fibers showed excellent microwave absorption performance due to the appropriate complex permittivity, high impedance matching, and attenuation coefficient. A wide effective bandwidth of 6.4 GHz with 2.2 mm thickness is achieved, covering the entire Ku-band. Remarkably, the reflection loss (RL) values less than -10 dB covered the whole X-band at a thickness of 3.0 mm. This work reveals the potential of carbonized bamboo fibers-based composite as an economic and broadband microwave absorbent and offers a new strategy for designing promising microwave absorption materials.
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Affiliation(s)
- Wanxi Li
- Department
of Materials Science and Engineering, Jinzhong
University, Jinzhong030619, P.R. China
| | - Fang Guo
- Department
of Materials Science and Engineering, Jinzhong
University, Jinzhong030619, P.R. China
| | - Yali Zhao
- Department
of Materials Science and Engineering, Jinzhong
University, Jinzhong030619, P.R. China
| | - Yanyun Liu
- Department
of Materials Science and Engineering, Jinzhong
University, Jinzhong030619, P.R. China
| | - Yien Du
- Department
of Chemistry and Chemical Engineering, Jinzhong
University, Jinzhong030619, P.R. China
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6
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Chand K, Zhang X, Chen Y. Recent Progress in MXene and Graphene based Nanocomposites for Microwave Absorption and EMI Shielding. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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7
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Deng L, Shu R, Zhang J. Fabrication of ultralight nitrogen-doped reduced graphene oxide/nickel ferrite composite foams with three-dimensional porous network structure as ultrathin and high-performance microwave absorbers. J Colloid Interface Sci 2022; 614:110-119. [DOI: 10.1016/j.jcis.2022.01.104] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 01/16/2022] [Accepted: 01/17/2022] [Indexed: 11/16/2022]
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Ferromagnetic Ti 3CNCl 2-decorated RGO aerogel: From 3D interconnecting conductive network construction to ultra-broadband microwave absorber with thermal insulation property. J Colloid Interface Sci 2021; 604:402-414. [PMID: 34271492 DOI: 10.1016/j.jcis.2021.05.166] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 05/02/2021] [Accepted: 05/27/2021] [Indexed: 11/22/2022]
Abstract
It remains urgent challenges to adopt suitable strategies to consume unwanted microwave pollution emitted by high-tech electronic devices satisfactorily. Confronted with narrow effective absorption bandwidth (EAB) and high filler loading bottlenecks of MXene-Based microwave absorber, herein, we employ Lewis molten salt etching approach to both exfoliate Ti3AlCN powders into Ti3CNCl2 suspension and intercalate ferromagnetic composition into interlamination simultaneously. By utilizing the crosslinking effect of dopamine, the Ti3CNCl2 are anchored on the surfaces of graphene oxide (GO) nanosheets, constructing interconnecting microstructure. Both the 3D conductive network and the modification of MXene manifest crucial impacts on enhancing microwave absorption performance of the resulting ultra-lightweight reduced GO (RGO)-based aerogel. The minimum intensity of reflection loss achieves -62.62 dB with the absorber mass loading of 0.7 wt%. Remarkably, more than 90% of the incident microwave is qualified to be absorbed over the whole Ku band. The EAB is broadened while tailoring the thickness to 3 mm, ranging from 10.2 to 18 GHz. Besides, the aerogel presents valuable thermal insulation properties. Our methodology of synthesizing MXene/RGO aerogel not only provides promising insights into microstructural construction but also endows the possibility for integrating thermal insulation property towards next-generation high-performance microwave absorption devices.
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Fu M, Chen W, Yu H, Gao M, Liu Q. General Synthesis of Two-Dimensional Porous Metal Oxides/Hydroxides for Microwave Absorbing Applications. Inorg Chem 2021; 61:678-687. [PMID: 34894676 DOI: 10.1021/acs.inorgchem.1c03430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metal oxides/hydroxides with a two-dimensional (2D) porous structure have extensive applications in catalysis, microwave absorption, and energy storage fields due to their large specific surface areas, massive exposed active sites, and good structural integrities. Herein, a general surfactant-assisted vapor diffusion-deposition self-assembly method is developed to synthesize various 2D porous metal oxides/hydroxides. Benefiting from the structure-directing effect of surfactants and the precise tuning of nucleation and growth process that results from this vapor diffusion-deposition strategy, a 2D porous structure is constructed. To explore the advantages of such 2D porous structure, electromagnetic characteristics and absorbing properties of as-obtained materials are investigated. The minimum reflection loss (RL) of 2D porous NiFe2O4 is -23.1 dB at 6.4 GHz, and the effective absorption bandwidth (EAB) is 5.1 GHz. However, the minimum RL is only -15.0 dB at 8.7 GHz and the EAB is 3.9 GHz for NiFe2O4 particles. In addition, the as-obtained 2D porous NiFe2O4 exhibits superior absorbing properties compared with many previously reported nickel ferrites. Furthermore, the microwave absorbing mechanism of 2D porous NiFe2O4 is investigated.
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Affiliation(s)
- Min Fu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Wei Chen
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Hao Yu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Meng Gao
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Qingyun Liu
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China
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10
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Wang X, Liao J, Du R, Wang G, Tsidaeva N, Wang W. Achieving super-broad effective absorption bandwidth with low filler loading for graphene aerogels/raspberry-like CoFe2O4 clusters by N doping. J Colloid Interface Sci 2021; 590:186-198. [DOI: 10.1016/j.jcis.2021.01.069] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/20/2021] [Accepted: 01/21/2021] [Indexed: 01/26/2023]
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11
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Li T, Xia L, Yang H, Wang X, Zhang T, Huang X, Xiong L, Qin C, Wen G. Construction of a Cu-Sn Heterojunction Interface Derived from a Schottky Junction in Cu@Sn/rGO Composites as a Highly Efficient Dielectric Microwave Absorber. ACS APPLIED MATERIALS & INTERFACES 2021; 13:11911-11919. [PMID: 33682404 DOI: 10.1021/acsami.0c22049] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Developing high-performance dielectric absorbers, low filler loading, and a broad absorption band remains a great challenge for wireless data communication systems, household appliances, local area network, and so on. Herein, we report a facile green method to design and fabricate a copper-coated tin/reduced graphene oxide (Cu@Sn/rGO) composites with a heterojunction obtained by modifying a Schottky junction. The unique heterojunction can enable an appropriate balance between impedance and strong loss capacity. Meanwhile, it can not only promote the carrier migration but also obtain the rich interfaces. Consequently, a Cu@Sn/rGO composite with a heterojunction exhibits superior absorption intensity, far surpassing that of other absorbing materials reported. With a weight content of only 5 wt %, the maximum absorptivity reaches -49.19 dB at 6.08 GHz, and an effective absorption bandwidth (RL < -10 dB) of 13.94 GHz is achieved when the absorber's thickness ranges from 1.7 to 5.5 mm. This study provides new insights into the design and synthesis of a novel microwave absorption material with lightweight, smaller filler loading, and strong reflection loss.
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Affiliation(s)
- Tiantian Li
- School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, China
| | - Long Xia
- School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, China
| | - Hua Yang
- School of Science, Lanzhou University of Technology, Lanzhou 730050, China
| | - Xinyu Wang
- School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, China
| | - Tao Zhang
- School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, China
| | - Xiaoxiao Huang
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Li Xiong
- School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, China
| | - Chunlin Qin
- 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
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Shu R, Zhao C, Zhang J, Liu W, Cao X, Li Y, Liu S. Facile synthesis of nitrogen-doped reduced graphene oxide/nickel ferrite hybrid nanocomposites with superior electromagnetic wave absorption performance in the X-band. J Colloid Interface Sci 2021; 585:538-548. [DOI: 10.1016/j.jcis.2020.10.034] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/08/2020] [Accepted: 10/11/2020] [Indexed: 02/06/2023]
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13
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Lv SQ, Han PZ, Zhang XJ, Wang GS. Graphene-wrapped pine needle-like cobalt nanocrystals constructed by cobalt nanorods for efficient microwave absorption performance. RSC Adv 2021; 11:31499-31504. [PMID: 35496876 PMCID: PMC9041652 DOI: 10.1039/d1ra06050c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 09/03/2021] [Indexed: 11/28/2022] Open
Abstract
Magnetic metal nanocrystals tend to be advanced microwave absorption substances as they possess simultaneous dielectric and magnetic losses. In this study, the metallic cobalt (Co) nanocrystals with a pine needle-like nanostructure constructed by one-dimensional Co nanorods have been successfully prepared through the polyol approach. By regulating the amount of reduced graphene oxide (rGO), rGO/Co nanocomposites with different mass ratios were acquired. Experimental results demonstrate that the rGO/Co nanocomposites display excellent microwave attenuation capacity. The minimum reflection loss value can reach −57.8 dB at 12.43 GHz with a filler loading of 20 wt% at 1.8 mm. Moreover, the effective absorption bandwidth covers the frequency range of 4.2–15.5 GHz with an integrated thickness of 1.5–4.0 mm. The main absorption mechanisms include dielectric loss caused by dipole and interfacial polarization and magnetic loss arising from ferromagnetic resonance and eddy current loss. In addition, the special nanostructure effect is also beneficial to improve the EM wave absorption performance. Magnetic metal nanocrystals tend to be advanced microwave absorption substances as they possess simultaneous dielectric and magnetic losses.![]()
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Affiliation(s)
- Shu-Qing Lv
- School of Civil Engineering and Architecture, Northeast Electric Power University, Jilin 132012, PR China
| | - Peng-Zhao Han
- School of Chemistry, Beihang University, Beijing 1000191, PR China
| | - Xiao-Juan Zhang
- College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing 100048, PR China
| | - Guang-Sheng Wang
- School of Chemistry, Beihang University, Beijing 1000191, PR China
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14
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Li W, Guo F, Wei X, Du Y, Chen Y. Preparation of Ni/C porous fibers derived from jute fibers for high-performance microwave absorption. RSC Adv 2020; 10:36644-36653. [PMID: 35517929 PMCID: PMC9057028 DOI: 10.1039/d0ra06817a] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 10/01/2020] [Indexed: 11/21/2022] Open
Abstract
Composites obtained by incorporating magnetic nanoparticles into porous carbon materials are promising in serving as microwave absorbing materials. In this study, Ni/C porous fibers were successfully synthesized through a simple in situ template method by using low-cost jute fibers as carbon source and template. The results showed that the Ni nanoparticles were uniformly loaded on the surface and hollow porous structure of the Ni/C porous fibers. Meanwhile, the content and size of the Ni nanoparticles on the Ni/C porous fibers can be controlled. Due to a suitable filling content, the synergistic effect of dielectric loss, interface polarization loss, magnetic loss and porous structure of the Ni/C porous fibers, an excellent microwave absorption performance was achieved. The minimum reflection loss value reached -43.0 dB, and a reflection loss value less than -10 dB was in the frequency range of 11.2-16.1 GHz with 2.0 mm thickness. In particular, under matching thickness (1.5-3.5 mm), the values of all the reflection loss peaks were below -20.0 dB. It is believed that this work can not only provide a new way to design excellent carbon-based microwave absorbing materials, but also offer an effective design strategy to synthesize biomass nanocomposites.
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Affiliation(s)
- Wanxi Li
- College of Chemistry and Chemical Engineering, Jinzhong University Jinzhong 030619 P. R. China
| | - Fang Guo
- College of Chemistry and Chemical Engineering, Jinzhong University Jinzhong 030619 P. R. China
| | - Xiaoqin Wei
- College of Chemistry and Chemical Engineering, Jinzhong University Jinzhong 030619 P. R. China
| | - Yien Du
- College of Chemistry and Chemical Engineering, Jinzhong University Jinzhong 030619 P. R. China
| | - Yongqiang Chen
- College of Chemistry and Chemical Engineering, Jinzhong University Jinzhong 030619 P. R. China
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15
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Bao S, Tang W, Song Z, Jiang Q, Jiang Z, Xie Z. Synthesis of sandwich-like Co 15Fe 85@C/RGO multicomponent composites with tunable electromagnetic parameters and microwave absorption performance. NANOSCALE 2020; 12:18790-18799. [PMID: 32970071 DOI: 10.1039/d0nr04615a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Magnetic particle/carbon hybrid structures are promising candidates for high performance microwave absorbing materials with light weight and strong absorption. However, it remains a great challenge to balance the permittivity and permeability to realize impedance matching and further improve their absorption bandwidth. Herein, an effective strategy is designed to fabricate sandwich-like Co15Fe85@C/RGO composites. By introducing RGO sheets in the hybrid structures, the electromagnetic parameters, impedance matching and microwave absorption properties of the final materials can be well controlled. The optimized Co15Fe85@C/RGO composite shows an excellent microwave absorption performance, the strongest reflection loss (RL) of the sample is up to -33.38 dB at 10.72 GHz with a matching thickness of 2.5 mm, and the effective bandwidth (RL < -10 dB) can reach 9.2 GHz (8.64-17.84 GHz). With a single thickness, such a wide absorption band is rarely reported. Their excellent performance can be ascribed to the synergetic effect of the chemical composition and unique sandwich-like structures, which will improve impendence matching and strong microwave attenuation constants of the composites. Our results provide a facile strategy for tuning the electromagnetic parameters and microwave absorption properties of magnetic metal/carbon hybrid structures.
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Affiliation(s)
- Susu Bao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
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16
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Wang Y, Suo B, Shi Y, Yuan H, Zhu C, Chen Y. General Fabrication of 3D Hierarchically Structured Bamboo-like Nitrogen-Doped Carbon Nanotube Arrays on 1D Nitrogen-Doped Carbon Skeletons for Highly Efficient Electromagnetic Wave Energy Attenuation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:40692-40701. [PMID: 32786225 DOI: 10.1021/acsami.0c12413] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hierarchically three-dimensional (3D) micro-nanostructures have promising applications in multifarious fields. Herein, we report a general strategy, that is, in situ catalysis process, for fabrication of nitrogen-doped carbon nanotube (NCNT) arrays on one-dimensional (1D) nitrogen-doped carbon (NC) skeletons. The NCNT arrays branch out from the 1D NC surfaces, resulting in the formation of hierarchically 3D micro-nanostructures. The strategy is involved in the pyrolysis of M-precursor (M = Fe, Co, and Ni) nanowires with the assistance of dicyandiamide. During the synthesis process, the metal components in the precursors serve as catalysts for growing NCNTs, while dicyandiamide provides carbon and nitrogen sources. With the ongoing reaction, the NCNTs were catalytically grown and branched out from 1D NC skeletons. Through the strategy, three kinds of hierarchically 3D structures with encapsulated Fe/Fe3C, Co, and Ni nanoparticles, respectively, were fabricated successfully. As functional materials for attenuating electromagnetic wave energy, these hierarchically 3D structures exhibit satisfactory performances even at a low matching thickness, exceeding most of the carbon-based materials. Typically, the minimal reflection losses of the 3D structures can reach -10.0 dB even as the matching thickness is in the range of 1.4-2.0 mm. Experimental results demonstrate that the excellent attenuation properties toward electromagnetic wave energy are relative to high conduction loss at a low frequency and high dielectric relaxations at a high frequency as well as better impedance matching with the input impedance of the free space. Our method presented here opens a general way for the development of hierarchically 3D carbon-based micro-nanostructures for their practical applications.
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Affiliation(s)
- Yuping Wang
- Key Laboratory of In-Fiber Integrated Optics, and College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
| | - Bing Suo
- Key Laboratory of In-Fiber Integrated Optics, and College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
| | - Yanan Shi
- Key Laboratory of In-Fiber Integrated Optics, and College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
| | - Haoran Yuan
- Key Laboratory of In-Fiber Integrated Optics, and College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
| | - Chunling Zhu
- College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China
| | - Yujin Chen
- Key Laboratory of In-Fiber Integrated Optics, and College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
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17
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Li Z, Yang E, Qi X, Xie R, Jing T, Qin S, Deng C, Zhong W. Outstanding comprehensive performance versus facile synthesis: Constructing core and shell-interchangeable nanocomposites as microwave absorber. J Colloid Interface Sci 2020; 565:227-238. [DOI: 10.1016/j.jcis.2020.01.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/02/2020] [Accepted: 01/02/2020] [Indexed: 02/06/2023]
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18
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Fan M, Liao D, Aboud MFA, Shakir I, Xu Y. A Universal Strategy toward Ultrasmall Hollow Nanostructures with Remarkable Electrochemical Performance. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000352] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Minmin Fan
- School of EngineeringWestlake University Hangzhou 310024 Zhejiang Province China
- Institute of Advanced TechnologyWestlake Institute for Advanced Study Hangzhou 310024 Zhejiang Province China
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification TechnologySchool of Chemistry and Chemical EngineeringGuangxi University Nanning 530004 China
| | - Dankui Liao
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification TechnologySchool of Chemistry and Chemical EngineeringGuangxi University Nanning 530004 China
| | - Mohamed F. Aly Aboud
- Sustainable Energy Technologies CenterCollege of EngineeringKing Saud University Riyadh 11421 Kingdom of Saudi Arabia
| | - Imran Shakir
- Sustainable Energy Technologies CenterCollege of EngineeringKing Saud University Riyadh 11421 Kingdom of Saudi Arabia
| | - Yuxi Xu
- School of EngineeringWestlake University Hangzhou 310024 Zhejiang Province China
- Institute of Advanced TechnologyWestlake Institute for Advanced Study Hangzhou 310024 Zhejiang Province China
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19
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Fan M, Liao D, Aboud MFA, Shakir I, Xu Y. A Universal Strategy toward Ultrasmall Hollow Nanostructures with Remarkable Electrochemical Performance. Angew Chem Int Ed Engl 2020; 59:8247-8254. [DOI: 10.1002/anie.202000352] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Minmin Fan
- School of EngineeringWestlake University Hangzhou 310024 Zhejiang Province China
- Institute of Advanced TechnologyWestlake Institute for Advanced Study Hangzhou 310024 Zhejiang Province China
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification TechnologySchool of Chemistry and Chemical EngineeringGuangxi University Nanning 530004 China
| | - Dankui Liao
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification TechnologySchool of Chemistry and Chemical EngineeringGuangxi University Nanning 530004 China
| | - Mohamed F. Aly Aboud
- Sustainable Energy Technologies CenterCollege of EngineeringKing Saud University Riyadh 11421 Kingdom of Saudi Arabia
| | - Imran Shakir
- Sustainable Energy Technologies CenterCollege of EngineeringKing Saud University Riyadh 11421 Kingdom of Saudi Arabia
| | - Yuxi Xu
- School of EngineeringWestlake University Hangzhou 310024 Zhejiang Province China
- Institute of Advanced TechnologyWestlake Institute for Advanced Study Hangzhou 310024 Zhejiang Province China
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20
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Shu R, Wan Z, Zhang J, Wu Y, Liu Y, Shi J, Zheng M. Facile Design of Three-Dimensional Nitrogen-Doped Reduced Graphene Oxide/Multi-Walled Carbon Nanotube Composite Foams as Lightweight and Highly Efficient Microwave Absorbers. ACS APPLIED MATERIALS & INTERFACES 2020; 12:4689-4698. [PMID: 31889438 DOI: 10.1021/acsami.9b16134] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Graphene foams with three-dimensional (3D) network structure, high porosity, and ultralow density have been regarded as lightweight microwave absorption materials. Herein, nitrogen-doped reduced graphene oxide/multi-walled carbon nanotube composite foams were prepared through a two-step strategy of hydrothermal self-assembly and subsequent high-temperature calcination. Morphology analysis indicated that the 3D networks were composed of overlapped flaky reduced graphene oxide. In addition, the influences of nitrogen doping, calcination temperature, and filler ratios on microwave absorption of composite foams were explored. Results manifested that the microwave absorption of composite foams was remarkably improved with the calcination temperature increased. Dramatically, it was noteworthy that the composite foam obtained under 600 °C calcination (bulk density of ∼10.8 mg/cm3) with an 8 wt % mass filler ratio presented the strongest microwave absorption of -69.6 dB at 12.5 GHz and broadest absorption bandwidth achieved 4.3 GHz (13.2-17.5 GHz) at an extremely low matching thickness equal to 1.5 mm. Moreover, the microwave absorption performance could be conveniently adjusted through modifying the thicknesses, filler ratios, and calcination temperature. The excellent microwave absorption performance of as-prepared composite foams was greatly derived from a well-constructed 3D network structure, significant nitrogen doping, enhanced polarization relaxation, and improved conduction loss. This work proposed a new strategy for fabricating graphene-based composites with a 3D network structure as high-efficiency microwave absorbers.
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Affiliation(s)
- Ruiwen Shu
- School of Chemical Engineering , Anhui University of Science and Technology , Huainan 232001 , P. R. China
- School of Earth and Environment , Anhui University of Science and Technology , Huainan 232001 , P. R. China
| | - Zongli Wan
- School of Chemical Engineering , Anhui University of Science and Technology , Huainan 232001 , P. R. China
| | - Jiabin Zhang
- School of Chemical Engineering , Anhui University of Science and Technology , Huainan 232001 , P. R. China
| | - Yue Wu
- School of Chemical Engineering , Anhui University of Science and Technology , Huainan 232001 , P. R. China
| | - Yin Liu
- School of Materials Science and Engineering , Anhui University of Science and Technology , Huainan 232001 , P. R. China
| | - Jianjun Shi
- School of Chemical Engineering , Anhui University of Science and Technology , Huainan 232001 , P. R. China
| | - Mingdong Zheng
- School of Chemical Engineering , Anhui University of Science and Technology , Huainan 232001 , P. R. China
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21
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Kang J, Yan F, Li C, Qi L, Geng B, Wang Y, Zhu C, Chen Y. NiFe 2O 4 hollow nanoparticles of small sizes on carbon nanotubes for oxygen evolution. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01241f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
CNT-supported Ni–Fe bimetallic oxide hollow nanoparticles with an ultra-small size based on Kirkendall effect are fabricated and this catalyst exhibits excellent OER performances and robust stability, superior to the benchmark IrO2 catalyst.
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Affiliation(s)
- Jianyu Kang
- Key Laboratory of In-Fiber Integrated Optics
- Ministry of Education
- and College of Physics and Optoelectronic Engineering
- Harbin Engineering University
- Harbin 150001
| | - Feng Yan
- Key Laboratory of In-Fiber Integrated Optics
- Ministry of Education
- and College of Physics and Optoelectronic Engineering
- Harbin Engineering University
- Harbin 150001
| | - Chunyan Li
- Key Laboratory of In-Fiber Integrated Optics
- Ministry of Education
- and College of Physics and Optoelectronic Engineering
- Harbin Engineering University
- Harbin 150001
| | - Lihong Qi
- Key Laboratory of In-Fiber Integrated Optics
- Ministry of Education
- and College of Physics and Optoelectronic Engineering
- Harbin Engineering University
- Harbin 150001
| | - Bo Geng
- College of Chemistry and Chemical Engineering
- Harbin Engineering University
- Harbin 150001
- China
| | - Yue Wang
- Key Laboratory of In-Fiber Integrated Optics
- Ministry of Education
- and College of Physics and Optoelectronic Engineering
- Harbin Engineering University
- Harbin 150001
| | - Chunling Zhu
- College of Chemistry and Chemical Engineering
- Harbin Engineering University
- Harbin 150001
- China
| | - Yujin Chen
- Key Laboratory of In-Fiber Integrated Optics
- Ministry of Education
- and College of Physics and Optoelectronic Engineering
- Harbin Engineering University
- Harbin 150001
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22
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Zhou Y, Wang N, Qu X, Huang F, Duan Y, Zhang X, Dong X, Zhang Z. Arc-discharge synthesis of nitrogen-doped C embedded TiCN nanocubes with tunable dielectric/magnetic properties for electromagnetic absorbing applications. NANOSCALE 2019; 11:19994-20005. [PMID: 31603171 DOI: 10.1039/c9nr07111c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The development of novel composites consisting of ceramic and C materials to alleviate increasingly serious electromagnetic radiation is of great significance in the microwave absorption (MA) field, considering their superior anti-oxidation/corrosion performances and good mechanical strength as well as adjustable dielectric loss capabilities. However, it is still a great challenge to broaden their effective absorption bandwidth (reflection loss value ≤-10 dB) and strengthen the absorption intensity simultaneously, which is mostly attributed to the unreliable impedance matching degree at the absorber/air interface. Herein, a feasible strategy is adopted to synthesize TiCN@N-doped C nanocubes, whose low graphitization degree provides desirable impedance matching conditions. In the meantime, masses of core/shell hetero interfaces ensure strong microwave absorption capability. Experimental results reveal that the optimal effective absorption bandwidth of the prepared TiCN@N-doped C nanocubes can reach up to 5.44 GHz with a thickness of 1.88 mm. Our work demonstrates that the TiCN@N-doped C nanocubes have potential for electromagnetic absorbing applications.
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Affiliation(s)
- Yuanliang Zhou
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116023, China.
| | - Ning Wang
- Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Xinghao Qu
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116023, China.
| | - Feirong Huang
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116023, China.
| | - Yuping Duan
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116023, China.
| | - Xuefeng Zhang
- Institute of Advanced Magnetic Materials, Hangzhou DianZi university, Hangzhou, 310012, China
| | - Xinglong Dong
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116023, China.
| | - Zhidong Zhang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning 110015, China.
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23
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Zhang X, Xu J, Yuan H, Zhang S, Ouyang Q, Zhu C, Zhang X, Chen Y. Large-Scale Synthesis of Three-Dimensional Reduced Graphene Oxide/Nitrogen-Doped Carbon Nanotube Heteronanostructures as Highly Efficient Electromagnetic Wave Absorbing Materials. ACS APPLIED MATERIALS & INTERFACES 2019; 11:39100-39108. [PMID: 31571475 DOI: 10.1021/acsami.9b13751] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Herein, we use reduced graphene oxide as a substrate and NiFe as a catalyst to fabricate three-dimensional (3D) nitrogen-doped carbon nanotube (NCNT)/reduced graphene oxide heteronanostructures (3D NiFe/N-GCTs). The 3D NiFe/N-GCTs are composed of two-dimensional (2D) reduced graphene oxide-supported one-dimensional (1D) NiFe nanoparticle-encapsulated NCNT arrays. The NCNTs exhibit bamboo-like shapes with the length and diameter of 3-10 μm and 15-45 nm, respectively. Besides integration of advantages of 1D and 2D nanomaterials, the 3D NiFe/N-GCT heteronanostructure possesses interconnected network structures, sufficient interfaces, numerous defects, hundreds of void spaces enclosed by bamboo joints and the walls of the NCNT in an individual carbon nanotube, and large surface areas, which can improve their dielectric losses toward electromagnetic wave. Thus, the 3D NiFe/N-GCTs show satisfied property toward electromagnetic wave absorption. Typically, the optimized 3D NiFe/N-GCT displays excellent minimal reflection loss (-40.3 dB) and outstanding efficient absorption bandwidth (4.5 GHz), outperforming most of the reported absorbers. Remarkably, the synthesis of 3D NiFe/N-GCTs only involves vacuum freeze-drying and subsequent thermal treatment process at a high temperature, and thus, the large-scale production of 3D NiFe/N-GCTs can be achieved in each batch, affording the possibility of the practical applications of the 3D NiFe/N-GCTs.
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Affiliation(s)
| | | | | | | | | | | | - Xitian Zhang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, and School of Physics and Electronic Engineering , Harbin Normal University , Harbin 150025 , China
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24
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Liu P, Gao S, Wang Y, Huang Y, Wang Y, Luo J. Core-Shell CoNi@Graphitic Carbon Decorated on B,N-Codoped Hollow Carbon Polyhedrons toward Lightweight and High-Efficiency Microwave Attenuation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:25624-25635. [PMID: 31268285 DOI: 10.1021/acsami.9b08525] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Lightweight and high-efficiency microwave attenuation are two major challenges in the exploration of carbon-based absorbers, which can be achieved simultaneously by manipulating their chemical composition, microstructure, or impedance matching. In this work, core-shell CoNi@graphitic carbon decorated on B,N-codoped hollow carbon polyhedrons has been constructed by a facile pyrolysis process using metal-organic frameworks as precursors. The B,N-codoped hollow carbon polyhedrons, originated from the calcination of Co-Ni-ZIF-67, are composed of carbon nanocages and BN domains, and CoNi alloy is encapsulated by graphitic carbon layers. With a filling loading of 30 wt %, the absorber exhibits a maximum RL of -62.8 dB at 7.2 GHz with 3 mm and the effective absorption bandwidth below -10 dB remarkably reaches as strong as 8 GHz when the thickness is only 2 mm. The outstanding microwave absorption performance stems from the hollow carbon polyhedrons and carbon nanocages with interior cavities, the synergistic coupling effect between the abundant B-C-N heteroatoms, the strong dipolar/interfacial polarizations, the multiple scatterings, and the improved impedance matching. This study demonstrates that the codoped strategy provides a new way for the rational design of carbon-based absorbers with lightweight and superior microwave attenuation.
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Affiliation(s)
- Panbo Liu
- MOE Key Laboratory of Material Physics and Chemistry under Extrodinary Conditions, School of Science , Northwestern Polytechnical University , Xi'an 710129 , China
| | - Sai Gao
- MOE Key Laboratory of Material Physics and Chemistry under Extrodinary Conditions, School of Science , Northwestern Polytechnical University , Xi'an 710129 , China
| | - Yang Wang
- MOE Key Laboratory of Material Physics and Chemistry under Extrodinary Conditions, School of Science , Northwestern Polytechnical University , Xi'an 710129 , China
| | - Ying Huang
- MOE Key Laboratory of Material Physics and Chemistry under Extrodinary Conditions, School of Science , Northwestern Polytechnical University , Xi'an 710129 , China
| | - Yan Wang
- School of Materials and Chemical Engineering , Xi'an Technological University , Xi'an 710021 , China
| | - Juhua Luo
- School of Material Science and Engineering , Yancheng Institute of Technology , Yancheng 224051 , China
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25
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Wei S, Wang X, Zheng Y, Chen T, Zhou C, Chen S, Liu J. Facile Preparation of Snowflake-Like MnO 2 @NiCo 2 O 4 Composites for Highly Efficient Electromagnetic Wave Absorption. Chemistry 2019; 25:7695-7701. [PMID: 30947364 DOI: 10.1002/chem.201900352] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 03/25/2019] [Indexed: 11/05/2022]
Abstract
Snowflake-like MnO2 @NiCo2 O4 composites were successfully fabricated by employing crossed snowflake-like MnO2 nanorods as cores and one-dimensional (1D) NiCo2 O4 nanoneedles as shells. Impressively, the MnO2 @NiCo2 O4 composites exhibited a highly efficient electromagnetic wave (EMW) absorbing capability, and the minimum reflection loss (RL) value reached -58.4 dB at 6.8 GHz for a thickness of 4.0 mm. The reasons for the improved EMW absorption capability of snowflake-like MnO2 @NiCo2 O4 composites were analyzed. The unique core-shell structure, good impedance matching, and high dielectric loss were all found to be important contributors. Moreover, the interfacial polarization mainly stemmed from the heterostructure, a microcurrent generated from the 1D MnO2 nanorods and NiCo2 O4 nanoneedles under alternating electromagnetic fields, and the synergistic effect from the different components were all beneficial to improve the EMW absorption performance. These results demonstrated that snowflake-like MnO2 @NiCo2 O4 composites could be utilized as promising materials for practical EMW absorbing applications.
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Affiliation(s)
- Shuang Wei
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao, 266071, P.R. China.,School of Material Science and Engineering, Ocean University of China, Qingdao, 266100, P.R. China
| | - Xiaoxia Wang
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao, 266071, P.R. China
| | - Yiwei Zheng
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao, 266071, P.R. China
| | - Tao Chen
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao, 266071, P.R. China
| | - Congli Zhou
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao, 266071, P.R. China
| | - Shougang Chen
- School of Material Science and Engineering, Ocean University of China, Qingdao, 266100, P.R. China
| | - Jingquan Liu
- College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Qingdao University, Qingdao, 266071, P.R. China
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26
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Cheng X, Zhou X, Wang S, Liu Z, Liu Q, Zhang Y, Liu Q, Li B. Fabrication of NiO/NiCo 2O 4 Mixtures as Excellent Microwave Absorbers. NANOSCALE RESEARCH LETTERS 2019; 14:155. [PMID: 31065819 PMCID: PMC6505032 DOI: 10.1186/s11671-019-2988-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 04/22/2019] [Indexed: 06/09/2023]
Abstract
The NiO/NiCo2O4 mixtures with unique yolk-shell structure were synthesized by a simple hydrothermal route and subsequent thermal treatment. The elemental distribution, composition, and microstructure of the samples were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), and scanning electron microscope (SEM), respectively. The microwave absorption property was investigated by using vector network analysis (VNA). The results indicated that the excellent electromagnetic wave absorption property of the NiO/NiCo2O4 mixtures was achieved due to the unique yolk-shell structure. In detail, the maximum reflection loss (RL) value of the sample reached up to - 37.0 dB at 12.2 GHz and the absorption bandwidth with RL below - 10 dB was 4.0 GHz with a 2.0-mm-thick absorber. In addition, the NiO/NiCo2O4 mixtures prepared at high temperature, exhibited excellent thermal stability. Possible mechanisms were investigated for improving the microwave absorption properties of the samples.
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Affiliation(s)
- Xiankun Cheng
- School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000 People’s Republic of China
| | - Xiangbo Zhou
- School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000 People’s Republic of China
| | - Shipeng Wang
- School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000 People’s Republic of China
| | - Zhongliang Liu
- School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000 People’s Republic of China
| | - Qinzhuang Liu
- School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000 People’s Republic of China
| | - Yongxing Zhang
- School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000 People’s Republic of China
| | - Qiangchun Liu
- School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000 People’s Republic of China
| | - Bing Li
- School of Physics and Electronic Information, Huaibei Normal University, Huaibei, 235000 People’s Republic of China
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27
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Xu X, Ran F, Fan Z, Lai H, Cheng Z, Lv T, Shao L, Liu Y. Cactus-Inspired Bimetallic Metal-Organic Framework-Derived 1D-2D Hierarchical Co/N-Decorated Carbon Architecture toward Enhanced Electromagnetic Wave Absorbing Performance. ACS APPLIED MATERIALS & INTERFACES 2019; 11:13564-13573. [PMID: 30882206 DOI: 10.1021/acsami.9b00356] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Metal-organic framework (MOF)-derived magnetic metal/carbon nanocomposites have shown tremendous potential for lightweight electromagnetic wave (EMW) absorption. However, it is a challenge but highly significant to design and construct mixed-dimensional hierarchical architectures with synergistically integrated characteristics from individual MOFs for advancing the EMW absorption performance. Inspired by the structure of cactus, a novel hierarchical one-dimensional (1D)-two-dimensional (2D) mixed-dimensional Co/N-decorated carbon architecture comprising carbon nanotubes grafted on carbon flakes (abbreviated as CoNC/CNTs) has been fabricated by the pyrolysis of bimetallic CoZn-ZIF-L. The CoNC/CNTs integrate the advantages of 1D nanotubes for the extra polarization of EMW and 2D nanoflakes with an interconnected porous structure for multiple reflection losses of EMW and optimization of impedance matching. The resultant CoNC/CNTs demonstrate excellent EMW absorbing performance. For the optimal EMW absorbing material of CoNC/CNT-3/1, minimum reflection loss reaches -44.6 dB at 5.20 GHz with a low filler loading of 15 wt %. Moreover, the largest effective bandwidth range achieves 4.5 GHz with a thickness of 1.5 mm and a filled ratio of 20 wt %. These findings indicate that such a mixed 1D-2D hierarchical architecture synergistically enhances EMW absorbing performance. This work sheds light on the rational design of a mixed-dimensional carbon architecture derived from MOFs for desirable functionalities.
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Affiliation(s)
- Xueqing 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 , Heilongjiang 150001 , P. R. China
| | - Feitian Ran
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin , Heilongjiang 150001 , P. R. China
| | - Zhimin 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 , Heilongjiang 150001 , P. R. China
| | - Hua Lai
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin , Heilongjiang 150001 , P. R. China
| | - Zhongjun Cheng
- Natural Science Research Center, Academy of Fundamental and Interdisciplinary National Key Laboratory of Science and Technology on Advanced Composites in Special Environments , Harbin Institute of Technology , Harbin , Heilongjiang 150090 , P. R. China
| | - Tong Lv
- Aerospace Institute of Advanced Material & Processing Technology , Beijing 100074 , P. R. China
| | - Lu Shao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin , Heilongjiang 150001 , P. R. China
| | - Yuyan 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 , Heilongjiang 150001 , P. R. China
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28
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Wei W, Liu X, Lu W, Zhang H, He J, Wang H, Hou Y. Light-weight Gadolinium Hydroxide@polypyrrole Rare-Earth Nanocomposites with Tunable and Broadband Electromagnetic Wave Absorption. ACS APPLIED MATERIALS & INTERFACES 2019; 11:12752-12760. [PMID: 30848117 DOI: 10.1021/acsami.8b21516] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Light-weight and highly efficient nanocomposite absorbing materials are gaining tremendous interest in recent years. Because of the unique electronic structure characteristics, nanoscale rare-earth materials are of great significance in the development of advanced functional materials. Herein, gadolinium hydroxide/polypyrrole (Gd(OH)3@PPy) nanocomposites were synthesized by a facial chemical solution route. The composites could achieve an absorbing performance of -51.4 dB at 16.2 GHz with a bandwidth of 4.8 GHz, covering the entire Ku band at a thickness of only 2.2 mm. Furthermore, the absorption intensity and bandwidth can be effectively tuned by adjusting the concentration of Gd(OH)3 in the composite. Because of the improvement of impedance matching, dual-loss mechanism, and the synergistic effect of rare-earth hydroxides and conductive polymers, light-weight gadolinium hydroxide@polypyrrole composites are considered as promising candidates for strong and broadband electromagnetic wave absorption.
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Affiliation(s)
| | | | | | | | - Jun He
- Institute of Functional Materials , Central Iron & Steel Research Institute , Beijing 100081 , P. R. China
| | | | - Yanglong Hou
- Beijing Key Laboratory for Magnetoelectric Materials and Devices (BKLMMD), Beijing Innovation Center for Engineering Science and Advanced Technology (BIC-ESAT), Department of Materials Science and Engineering, College of Engineering , Peking University , Beijing 100871 , China
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29
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Novel nanocomposites of cobalt ferrite covalently-grafted on graphene by amide bond as superior electromagnetic wave absorber. J Colloid Interface Sci 2019; 540:218-227. [PMID: 30640069 DOI: 10.1016/j.jcis.2019.01.025] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 01/06/2019] [Accepted: 01/07/2019] [Indexed: 11/24/2022]
Abstract
Unique covalently bonded cobalt ferrite (CoFe2O4)/graphene nanocomposites are successfully fabricated via an amino-ester-amide reaction process. The morphology, component, functional groups and electromagnetic properties are detected by Transmission Electron Microscope (TEM), Scanning Electron Microscope (SEM), X-ray Photoelectron Spectroscopy (XPS), Fourier Transform Infrared Spectra (FTIR), Vibrating Sample Magnetometer (VSM) and Vector Network Analyzer (VNA). Compared to non-covalently bonded nanocomposites, the covalently bonded CoFe2O4/graphene nanocomposites have outstanding electromagnetic wave absorption properties. We found that the maximum reflection loss value reached at -55.2 dB and the absorption bandwidth with reflection loss below -10 dB was about 5.4 GHz at 1.7 mm of thickness. The efficiency is attributed to the introduction of amide bonds in the nanocomposites. As a stable carrier channel, amide bonds can promote the migration rate of electrons and binding degree between CoFe2O4 and graphene nanosheets, which provide a crucial impact on electromagnetic parameters and polarization modes of materials, thus improving the absorption capacity of electromagnetic waves. It can be inferred that the nanocomposites have a broad application prospect in the field of electronic instruments, aerospace, military radars and national defense security fields.
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30
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Qin Y, Zhang Y, Qi N, Wang Q, Zhang X, Li Y. Preparation of Graphene Aerogel with High Mechanical Stability and Microwave Absorption Ability via Combining Surface Support of Metallic-CNTs and Interfacial Cross-Linking by Magnetic Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2019; 11:10409-10417. [PMID: 30776887 DOI: 10.1021/acsami.8b22382] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The preparation of graphene aerogel by hydrothermal or chemical reduction has been one of the hot topics of research. But in the process of assembly, the random weak connection of GO flakes leads to irreversible deformation under compression, and the mechanical stability of aerogel based on graphene is one of its drawbacks that is hard to overcome. Here, a novel method to prepare graphene aerogel with high mechanical stability was proposed via combining surface support brought by metallic-CNT networks and interfacial cross-linking of GO sheets achieved by nanoparticle selective absorption. Thoroughly dispersed metallic-CNTs absorbed on the basal plane of GO flakes formed continuous network structures, which not only improve the mechanical performance of flakes but also provide steric effects to impel the adsorption of metallic oxide magnetic nanoparticles concentrated on the edge of GO flakes, thereby guaranteeing the interfacial connection of adjacent rGO flakes by nanoparticle cross-linking. Meanwhile, the surface and interface reinforce approach can greatly improve the electrical conductivity and mechanical stability of composites. Owing to the light weight, abundant interface, high electrical conductivity, combined with the superparamagnetic properties brought by the magnetic nanoparticles, composite aerogel with high mechanical stability and excellent microwave absorption was achieved, of which the effective absorption bandwidth of the aerogel is 4.4-18 GHz and the maximum value can reach -49 dB. This approach could not only be used to prepare microwave absorption materials with light weight and high performance but also be meaningful to enlarge the construction and application of carbon-based materials.
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Affiliation(s)
- Yan Qin
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry , Shandong University , Jinan 250100 , China
| | - Yan Zhang
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry , Shandong University , Jinan 250100 , China
| | - Na Qi
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry , Shandong University , Jinan 250100 , China
| | - Qiaozhi Wang
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry , Shandong University , Jinan 250100 , China
| | - Xuejie Zhang
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry , Shandong University , Jinan 250100 , China
| | - Ying Li
- Key Laboratory of Colloid and Interface Chemistry of State Education Ministry , Shandong University , Jinan 250100 , China
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Sun Y, Zhang J, Zong Y, Deng X, Zhao H, Feng J, He M, Li X, Peng Y, Zheng X. Crystalline-Amorphous Permalloy@Iron Oxide Core-Shell Nanoparticles Decorated on Graphene as High-Efficiency, Lightweight, and Hydrophobic Microwave Absorbents. ACS APPLIED MATERIALS & INTERFACES 2019; 11:6374-6383. [PMID: 30673262 DOI: 10.1021/acsami.8b18875] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The exploration of high-efficiency microwave absorption materials with lightweight and hydrophobic features is highly expected to reduce or eliminate the electromagnetic pollution. Graphene-based nanocomposites are universally acknowledged as promising candidates for absorbing microwaves due to their remarkable dielectric properties and lightweight characteristic. However, the hydrophilicity of graphene may reduce their stability and restrict the applications in moist environment. Herein, a well-designed heterostructure composed of crystalline permalloy core and amorphous iron oxide shell was uniformly adhered on oleylamine-modified graphene nanosheets by a one-pot thermal decomposition method. Compared with the recognized hydrophilic graphene-based hybrid materials, the permalloy@iron oxide/graphene nanocomposites show excellent hydrophobic and water-resistant features with a water contact angle of 136.5°. Besides, the nanocomposites show high-efficiency microwave absorption performance, benefiting from the tunneling effect, polarization, interface interaction, impedance matching condition, and synergistic effect between core-shell permalloy@iron oxide nanoparticles and graphene nanosheets. A broad effective absorption bandwidth with reflection loss (RL) value exceeding -10 dB can be obtained from 4.25 to 18 GHz, covering about 86% measured frequency range when the absorber thickness is 2.0-5.0 mm. Also, the microwave absorption performance of nanocomposites can be tuned by changing the amount of graphene. More importantly, a greatly improved microwave absorption effectiveness of -71.1 dB can be achieved for the nanocomposites in comparison with the bare permalloy@iron oxide nanoparticles (-5.6 dB) and oleylamine-modified GO nanosheets (-3.56 dB). The lightweight and hydrophobic permalloy@iron oxide/graphene nanocomposites with high-efficiency microwave absorption performance are highly promising to improve the environmental adaptability of electric devices, especially in the wet environment.
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Affiliation(s)
- Yong Sun
- School of Physics , Northwest University , Xi'an 710069 , China
| | - Junwei Zhang
- Key Laboratory of Magnetism and Magnetic Materials of the Ministry of Education , Lanzhou University , Lanzhou 730000 , China
| | - Yan Zong
- School of Physics , Northwest University , Xi'an 710069 , China
| | - Xia Deng
- Key Laboratory of Magnetism and Magnetic Materials of the Ministry of Education , Lanzhou University , Lanzhou 730000 , China
| | - Hongyang Zhao
- School of Science , Xi'an Jiaotong University , Xi'an , Shaanxi 710054 , China
| | - Juan Feng
- School of Physics , Northwest University , Xi'an 710069 , China
| | - Mi He
- School of Physics , Northwest University , Xi'an 710069 , China
| | - Xinghua Li
- School of Physics , Northwest University , Xi'an 710069 , China
| | - Yong Peng
- Key Laboratory of Magnetism and Magnetic Materials of the Ministry of Education , Lanzhou University , Lanzhou 730000 , China
| | - Xinliang Zheng
- School of Physics , Northwest University , Xi'an 710069 , China
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32
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Li W, Qi H, Guo F, Niu X, Du Y, Chen Y. NiFe2O4 nanoparticles supported on cotton-based carbon fibers and their application as a novel broadband microwave absorbent. RSC Adv 2019; 9:29959-29966. [PMID: 35531530 PMCID: PMC9072117 DOI: 10.1039/c9ra05844c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 09/15/2019] [Indexed: 11/28/2022] Open
Abstract
In this work, NiFe2O4 nanoparticles were successfully supported on cotton-based carbon fibers through a flexible two-step approach consisting of calcination of cotton in a N2 atmosphere and subsequent hydrothermal reaction. The incorporation of the NiFe2O4 nanoparticles into cotton-based carbon fibers resulted in better impedance matching, leading to better microwave absorption performance than cotton-based carbon fibers and NiFe2O4 nanoparticles. For NiFe2O4/carbon fibers, reflection loss (RL) values less than −10 dB were obtained in the frequency range of 11.5–18 GHz with 2.4 mm thickness, which covered the entire Ku-band (from 12 to 18 GHz). Meanwhile, when the matching thickness was 3.2 mm, the RL values less than −10 dB were in the range of 8.0–12.7 GHz, which covered the entire X-band (from 8 to 12 GHz). This excellent and interesting microwave absorption performance can satisfy multiple applications. Owing to the characteristics of a cost-effective synthetic route, low density and excellent microwave absorption, the NiFe2O4/carbon fibers have a promising future in X-band and Ku-band absorption. NiFe2O4 nanoparticles supported on cotton-based carbon fibers exhibited excellent microwave absorption performance in the X-band and Ku-band.![]()
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Affiliation(s)
- Wanxi Li
- College of Chemistry and Chemical Engineering
- Jinzhong University
- Jinzhong 030619
- China
| | - Hongxue Qi
- College of Chemistry and Chemical Engineering
- Jinzhong University
- Jinzhong 030619
- China
| | - Fang Guo
- College of Chemistry and Chemical Engineering
- Jinzhong University
- Jinzhong 030619
- China
| | - Xianjun Niu
- College of Chemistry and Chemical Engineering
- Jinzhong University
- Jinzhong 030619
- China
| | - Yien Du
- College of Chemistry and Chemical Engineering
- Jinzhong University
- Jinzhong 030619
- China
| | - Yongqiang Chen
- College of Chemistry and Chemical Engineering
- Jinzhong University
- Jinzhong 030619
- China
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33
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Zhang N, Huang Y, Wang M, Liu X, Zong M. Design and microwave absorption properties of thistle-like CoNi enveloped in dielectric Ag decorated graphene composites. J Colloid Interface Sci 2019; 534:110-121. [DOI: 10.1016/j.jcis.2018.09.016] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 08/19/2018] [Accepted: 09/05/2018] [Indexed: 11/29/2022]
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Wang S, Zhao Y, Gao M, Xue H, Xu Y, Feng C, Shi D, Liu K, Jiao Q. Green Synthesis of Porous Cocoon-like rGO for Enhanced Microwave-Absorbing Performances. ACS APPLIED MATERIALS & INTERFACES 2018; 10:42865-42874. [PMID: 30449085 DOI: 10.1021/acsami.8b15416] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A novel porous cocoon-like reduced graphene oxide (rGO) with high porosity and low density was fabricated by a simple and green reduction reaction using ascorbic acid as the reductant in combination with a freeze-drying process without annealing. The bulk density of porous cocoon-like rGO is only 28.49 mg/cm3, and the porosity reaches 94.57%. The reaction times have an important influence on the formation of porous cocoon-like rGO and the reduction degree of rGO. The porous cocoon-like rGO exhibits an excellent microwave-absorbing property with a low mass filling ratio of 7.0 wt %; its minimum reflection loss (RL) is -29.05 dB at 15.96 GHz with a sample thickness of 2.0 mm and the effective absorption bandwidth (RL < -10 dB) is 5.27 GHz. The microwave-absorbing property of porous cocoon-like rGO is much better than that of GO and other porous rGO. The in-depth analyses of the reduction degree, porosity, and microwave-absorbing performance illustrate that the microwave-absorbing performance of rGO is significantly related to the reduction degree and porosity. In addition, the synthetic route for porous cocoon-like rGO is simple, has low energy consumption, and is environmentally friendly. Our work demonstrates that the porous cocoon-like rGO is a promising lightweight microwave absorber with high performance.
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Affiliation(s)
- Shanshan Wang
- School of Chemistry and Chemical Engineering , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Yun Zhao
- School of Chemistry and Chemical Engineering , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Meimei Gao
- School of Chemistry and Chemical Engineering , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Haoliang Xue
- School of Chemistry and Chemical Engineering , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Yingchun Xu
- School of Chemistry and Chemical Engineering , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Caihong Feng
- School of Chemistry and Chemical Engineering , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Daxin Shi
- School of Chemistry and Chemical Engineering , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | - Kaihui Liu
- State Key Laboratory for Mesoscopic Physics, School of Physics , Peking University , Beijing 100871 , China
| | - Qingze Jiao
- School of Chemistry and Chemical Engineering , Beijing Institute of Technology , Beijing 100081 , P. R. China
- School of Materials and the Environment , Beijing Institute of Technology , Zhuhai 519085 , P. R. China
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35
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Zhang Y, Ma HL, Cao K, Wang L, Zeng X, Zhang X, He L, Liu P, Wang Z, Zhai M. Gamma Irradiation-Induced Preparation of Graphene⁻Ni Nanocomposites with Efficient Electromagnetic Wave Absorption. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E2145. [PMID: 30384443 PMCID: PMC6266599 DOI: 10.3390/ma11112145] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 10/25/2018] [Accepted: 10/26/2018] [Indexed: 12/04/2022]
Abstract
A facile and environmentally friendly method is proposed to prepare reduced graphene oxide⁻nickel (RGO⁻Ni) nanocomposites using γ-ray irradiation. Graphene oxide (GO) and Ni2+ are reduced by the electrons which originated from the gamma radiolysis of H₂O. The structure and morphology of the obtained RGO⁻Ni nanocomposites were analyzed using X-ray diffraction (XRD) and Raman spectroscopy. The results show that Ni nanoparticles were dispersed uniformly on the surface of the RGO nanosheets. As expected, the combination of RGO nanosheets and Ni nanoparticles improved the electromagnetic wave absorption because of the better impedance matching. RGO⁻Ni nanocomposites exhibited efficient electromagnetic wave absorption performance. The minimum reflection loss (RL) of RGO⁻Ni reached -24.8 dB, and the highest effective absorption bandwidth was up to 6.9 GHz (RL < -10 dB) with a layer thickness of 9 mm.
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Affiliation(s)
- Youwei Zhang
- Aviation Key Laboratory of Science and Technology on Stealth Materials, Beijing Institute of Aeronautical Materials, Beijing 100095, China.
| | - Hui-Ling Ma
- Beijing Key Laboratory of Clothing Materials R&D and Assessment, School of Materials Science & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China.
- Beijing Key Laboratory of Radiation Advanced Materials, Beijing Research Center for Radiation Application, Beijing 100015, China.
| | - Ke Cao
- Beijing Key Laboratory of Radiation Advanced Materials, Beijing Research Center for Radiation Application, Beijing 100015, China.
| | - Liancai Wang
- Beijing Key Laboratory of Radiation Advanced Materials, Beijing Research Center for Radiation Application, Beijing 100015, China.
| | - Xinmiao Zeng
- Beijing Key Laboratory of Radiation Advanced Materials, Beijing Research Center for Radiation Application, Beijing 100015, China.
| | - Xiuqin Zhang
- Aviation Key Laboratory of Science and Technology on Stealth Materials, Beijing Institute of Aeronautical Materials, Beijing 100095, China.
| | - Lihua He
- Beijing Key Laboratory of Clothing Materials R&D and Assessment, School of Materials Science & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China.
| | - Pinggui Liu
- Beijing Key Laboratory of Clothing Materials R&D and Assessment, School of Materials Science & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China.
| | - Zhiyong Wang
- Beijing Key Laboratory of Clothing Materials R&D and Assessment, School of Materials Science & Engineering, Beijing Institute of Fashion Technology, Beijing 100029, China.
| | - Maolin Zhai
- Beijing National Laboratory for Molecular Sciences, Department of Applied Chemistry and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
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36
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Yan F, Kang J, Zhang S, Li C, Zhu C, Zhang X, Chen Y. Enhanced electromagnetic wave absorption induced by void spaces in hollow nanoparticles. NANOSCALE 2018; 10:18742-18748. [PMID: 30272082 DOI: 10.1039/c8nr07338d] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We developed a facile method for the growth of hollow structured NiCo2O4 nanoparticles on a graphene sheet (NiCo2O4-h/G). The hollow NiCo2O4 nanoparticles have an average diameter of approximately 10.0 nm and a shell thickness of merely 2.5 nm. The NiCo2O4-h/G hybrid exhibited excellent electromagnetic wave absorption with minimal reflection loss below -20 dB at absorber thickness ranging from 2.0 to 5.0 mm, outperforming the solid NiCo2O4 nanoparticles on the graphene sheet. Remarkably, even for a thickness as small as 1.5 mm, the efficient absorption bandwidth and the minimal reflection loss of the hybrid can reach 2.6 GHz and -20.3 dB, respectively. Experimental results and theoretical calculations indicate that the void space in the hollow NiCo2O4 nanoparticles plays a crucial role in the excellent electromagnetic wave absorption property, which greatly increases the dielectric loss and impedance matching characteristics. Our results demonstrate that growing the hollow nanoparticles on a graphene sheet is an efficient way to produce high-performance electromagnetic wave absorbers.
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Affiliation(s)
- Feng Yan
- Key Laboratory of In-Fiber Integrated Optics, Ministry of Education and College of Science, Harbin Engineering University, Harbin 150001, China.
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37
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Chen Y, Li S, Wei X, Tang R, Zhou Z. Infrared extinction and microwave absorption properties of hybrid Fe 3O 4@SiO 2@Ag nanospheres synthesized via a facile seed-mediated growth route. NANOTECHNOLOGY 2018; 29:375703. [PMID: 29926811 DOI: 10.1088/1361-6528/aace23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Fe3O4@SiO2@Ag ternary hybrid nanoparticles were synthesized via a facile seed-mediated growth route. X-ray diffraction, transmission electron microscopy and vibrating sample magnetometer measurements were used to characterize the as-prepared product. The results indicated that the nanoparticles exhibited excellent magnetic properties and an extremely dense structure with Ag layer thicknesses of 30, 40, and 50 nm. Furthermore, the microwave shielding effectiveness exceeded 20 dB over almost the entire frequency range (2-18 GHz), and the effectiveness obviously improved as the thickness of the Ag layer increased. In addition, the IR extinction coefficient of the nanoparticles was calculated by a finite-difference time-domain method, which showed that the nanoparticles can inherit the extinction performance of pure silver when the Ag shell thickness was 30 nm. Specifically, after assembling into chains, the peak position of the IR extinction curves displayed a significant redshift and an intensity increase as the number of nanoparticles increased in the chain, which dramatically promoted the IR extinction capability. As a result, the Fe3O4@SiO2@Ag nanoparticles are expected to be used as a new multispectral interference material.
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Affiliation(s)
- Yongpeng Chen
- State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, People's Republic of China
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38
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Zhang X, Yan F, Zhang S, Yuan H, Zhu C, Zhang X, Chen Y. Hollow N-Doped Carbon Polyhedron Containing CoNi Alloy Nanoparticles Embedded within Few-Layer N-Doped Graphene as High-Performance Electromagnetic Wave Absorbing Material. ACS APPLIED MATERIALS & INTERFACES 2018; 10:24920-24929. [PMID: 29974737 DOI: 10.1021/acsami.8b07107] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Magnetic metal nanostructures have exhibited good electromagnetic wave (EMW) absorption properties. However, the surface of the nanostructures is easily oxidized upon exposure to air, leading to the bad stability of the EMW absorption properties. We use metal-organic framework structure as a template to fabricate hollow N-doped carbon polyhedron containing CoNi alloy nanoparticles embedded within N-doped graphene (CoNi@NG-NCPs). The atomic ratio of Co/Ni can be tuned from 1:0.54 to 1:0.91 in the hollow CoNi@NG-NCPs. Experimental results demonstrate that the EMW absorption properties of the CoNi@NG-NCPs can be improved through the Ni introduction and increased with an increase of the Ni content. Typically, the minimal reflection loss of the optimal CoNi@NG-NCP can reach -24.03 dB and the effective absorption bandwidth (reflection loss below -10 dB) is as large as 4.32 GHz at the thickness of 2.5 mm. Furthermore, our CoNi@NG-NCPs exhibit favorably comparable or superior EMW absorption properties to other magnetic absorbers. In addition, because the CoNi alloy nanoparticles are coated with N-doped graphene layers, their surface oxidation behavior can be efficiently limited. The mechanism of the enhanced EMW absorption property is relevant to the enhanced dielectric loss and better impedance matching characteristic caused by the Ni incorporation.
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Affiliation(s)
- Xiao Zhang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, and School of Physics and Electronic Engineering , Harbin Normal University , Harbin 150025 , China
| | | | | | | | | | - Xitian Zhang
- Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, and School of Physics and Electronic Engineering , Harbin Normal University , Harbin 150025 , China
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39
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Liu Y, Chen Z, Zhang Y, Feng R, Chen X, Xiong C, Dong L. Broadband and Lightweight Microwave Absorber Constructed by in Situ Growth of Hierarchical CoFe 2O 4/Reduced Graphene Oxide Porous Nanocomposites. ACS APPLIED MATERIALS & INTERFACES 2018; 10:13860-13868. [PMID: 29589899 DOI: 10.1021/acsami.8b02137] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
A broadband and lightweight microwave absorber has attracted soaring research interest because of the increasing demand for electronic reliability and defense security. Lightweight ferrites/graphene porous composites with abundant interfaces are potential high-performance absorbers owing to their balanced attenuation ability and impedance matching. Herein, we synthesized hierarchical CoFe2O4/reduced graphene oxide (CFO/rGO) nanocomposites with a porous structure via an in situ solvothermal method. The electromagnetic parameters of CFO/rGO nanocomposites can be well-adjusted by modulating the weight fraction of rGO. The hierarchical porous structure and proper electromagnetic parameters result in the enhancement of impedance matching and attenuation ability. Benefiting from the controllable composition, hierarchical porous structure, and strong synergetic effect between CFO and rGO sheets, as expected, CFO/rGO nanocomposites exhibit superior microwave absorption performance with an ultrabroad bandwidth reaching 5.8 GHz (8.3-14.1 GHz) with a thin thickness of 2.8 mm. Meanwhile, a strong reflection loss of -57.7 dB at the same thickness is achieved. Considering the outstanding microwave absorption performance, the hierarchical CFO/rGO porous nanocomposites can be employed as a high-performance microwave absorber.
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Affiliation(s)
- Yang Liu
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , China
| | - Zhuo Chen
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , China
| | - Yang Zhang
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , China
| | - Rui Feng
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , China
| | - Xiao Chen
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , China
| | - Chuanxi Xiong
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , China
| | - Lijie Dong
- Center for Smart Materials and Devices, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing , Wuhan University of Technology , Wuhan 430070 , China
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40
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Fu C, He D, Wang Y, Zhao X. Facile synthesis of porous Fe3O4@C core/shell nanorod/graphene for improving microwave absorption properties. RSC Adv 2018; 8:15358-15365. [PMID: 35539449 PMCID: PMC9080006 DOI: 10.1039/c8ra01838c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 04/11/2018] [Indexed: 11/21/2022] Open
Abstract
Porous Fe3O4@C core/shell nanorods decorated with reduced graphene oxide were synthesized by a facile one-pot method, and exhibit high microwave absorption performance: maximum reflection loss reaches −48.6 dB.
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Affiliation(s)
- Chen Fu
- Key Laboratory of Luminescence and Optical Information
- Ministry of Education
- Institute of Optoelectronic Technology
- Beijing Jiaotong University
- Beijing 100044
| | - Dawei He
- Key Laboratory of Luminescence and Optical Information
- Ministry of Education
- Institute of Optoelectronic Technology
- Beijing Jiaotong University
- Beijing 100044
| | - Yongsheng Wang
- Key Laboratory of Luminescence and Optical Information
- Ministry of Education
- Institute of Optoelectronic Technology
- Beijing Jiaotong University
- Beijing 100044
| | - Xuan Zhao
- Key Laboratory of Luminescence and Optical Information
- Ministry of Education
- Institute of Optoelectronic Technology
- Beijing Jiaotong University
- Beijing 100044
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