Fabrication of carbon-doped ZnCo2O4 yolk-shell microspheres compounded with magnetic graphene for enhanced electromagnetic wave absorption performance
Source abstract
Abstract
Abstract Carbon-doped ZnCo 2 O 4 (ZnCo 2 O 4 /C) yolk-shell microspheres are synthesized by a method of thermally decomposing precursor and then successfully compounded with magnetic graphene (MG) via co-precipitation in combination with a reduction pathway. The fabrication processes and characterizations (XRD, XPS, TEM, EDS and SEM) are described and explained in detail. It is confirmed that amorphous carbon (in situ decomposition from PVP) is uniformly doped into ZnCo 2 O 4 yolk-shell microspheres. In addition, the reflection loss (RL) and electromagnetic (EM) wave absorption mechanisms of as-prepared ZnCo 2 O 4 /C/MG composites are calculated and analyzed exhaustively. The results show that absorption bandwidth with RL exceeding -10 dB reaches up to 4.48 GHz with a matching thickness of 3.5 mm while the maximum RL is up to -52.9 dB at 7.52 GHz with a matching thickness of 3.9 mm. Enhanced EM wave absorption performance can be attributed to good dielectric and magnetic loss, excellent impedance matching, diverse interfacial polarization and multiple reflections caused by special structures.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Advanced Antenna and Metasurface Technologies · Metamaterials and Metasurfaces Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (74)
Show source-provided references
1. Rational design of core-shell Co@C microspheres for high-performance microwave absorption10.1016/j.carbon.2016.10.059 ↗
2. A facile fabrication and highly tunable microwave absorption of 3D flower-like Co3O4-rGO hybrid-architectures10.1016/j.cej.2018.01.152 ↗
3. Confinedly tailoring Fe3O4 clusters-NG to tune electromagnetic parameters and microwave absorption with broadened bandwidth10.1016/j.cej.2017.09.101 ↗
4. Electromagnetic characteristics and microwave absorption properties of carbon-encapsulated cobalt nanoparticles in 2–18 GHz frequency range10.1016/j.carbon.2014.08.044 ↗
5. A facile synthesis of FeNi3@C nanowires for electromagnetic wave absorber10.1016/j.jallcom.2013.10.063 ↗
6. Fe3O4@LAS/RGO composites with a multiple transmission-absorption mechanism and enhanced electromagnetic wave absorption performance10.1016/j.cej.2018.07.064 ↗
7. The flaky porous Fe3O4 with tunable dimensions for enhanced microwave absorption performance in X and C bands10.1088/1361-6528/aac0de ↗
8. Facile preparation, high microwave absorption and microwave absorbing mechanism of RGO–Fe3O4 composites10.1039/c3ra43359e ↗
9. Enhanced electromagnetic wave absorption of three-dimensional porous Fe3O4/C composite flowers10.1021/acssuschemeng.8b03097 ↗
10. Development of Fe/Fe3O4@C composite with excellent electromagnetic absorption performance10.1016/j.jallcom.2018.02.255 ↗
11. Electromagnetic wave absorption in reduced graphene oxide functionalized with Fe3O4/Fe nanorings10.1007/s12274-016-1092-z ↗
12. Confinedly implanted NiFe2O4-rGO: cluster tailoring and highly tunable electromagnetic properties for selective-frequency microwave absorption10.1007/s12274-017-1758-1 ↗
13. Synthesis of ZnS quantum dots and CoFe2O4 nanoparticles co-loaded with graphene nanosheets as an efficient broad band EM wave absorber10.1016/j.cej.2016.09.065 ↗
14. Laminated magnetic graphene with enhanced electromagnetic wave absorption properties10.1039/C2TC00159D ↗
15. Hydrothermal synthesis of magnetic Fe3O4/graphene composites with good electromagnetic microwave absorbing performances10.1016/j.jmmm.2016.11.063 ↗
16. Quaternary nanocomposites consisting of graphene, Fe3O4@Fe core@shell, and ZnO nanoparticles: synthesis and excellent electromagnetic absorption properties10.1021/am3021697 ↗
17. 3D ferromagnetic graphene nanocomposites with ZnO nanorods and Fe3O4 nanoparticles co-decorated for efficient electromagnetic wave absorption10.1016/j.compositesb.2017.10.029 ↗
18. Hierarchical graphene@Fe3O4 nanocluster@carbon@MnO2 nanosheet array composites: synthesis and microwave absorption performance10.1039/C4CP05556J ↗
19. Synthesis of hierarchical core-shell NiFe2O4@MnO2 composite microspheres decorated graphene nanosheet for enhanced microwave absorption performance10.1016/j.ceramint.2017.05.344 ↗
20. Controlled synthesis of Fe3O4@SnO2/RGO nanocomposite for microwave absorption enhancement10.1016/j.ceramint.2016.03.180 ↗
21. Microwave absorption enhancement of multifunctional composite microspheres with spinel Fe3O4 cores and anatase TiO2 shells10.1002/smll.201102245 ↗
22. Magnetic graphene@PANI@porous TiO2 ternary composites for high-performance electromagnetic wave absorption10.1039/C6TC01718E ↗
23. Recent advancements of polyaniline-based nanocomposites for supercapacitors10.1016/j.jpowsour.2019.03.094 ↗
24. Enhanced microwave absorption performances of polyaniline/graphene aerogel by covalent bonding10.1016/j.compositesb.2019.04.008 ↗
25. Covalently bonded polyaniline/graphene composites as high-performance electromagnetic (EM) wave absorption materials10.1016/j.compositesa.2017.04.016 ↗
26. Layer structured graphene/porous ZnCo2O4 composite film for high performance flexible lithium-ion batteries10.1016/j.cej.2018.03.001 ↗
27. ZnCo2O4-reduced graphene oxide composite with balanced capacitive performance in asymmetric supercapacitors10.1016/j.apsusc.2018.02.152 ↗
28. ZnCo2O4 nanoparticles derived from dual-metal-organic-frameworks embedded in multiwalled carbon nanotubes: a favorable electrocatalyst for the water splitting10.1016/j.electacta.2017.10.080 ↗
29. Graphene-loaded porous ZnCo2O4 nanosheets composite as counter electrode for dye-sensitized solar cells10.1016/j.matlet.2017.07.005 ↗
30. Role of N doping on the electrochemical performances of ZnCo2O4 quantum dots/reduced graphene oxide composite nanosheets10.1016/j.cej.2017.06.084 ↗
31. Morphology-controlled synthesis and excellent microwave absorption performance of ZnCo2O4 nanostructures via a self-assembly process of flake units10.1039/C8NR08601J ↗
32. Incorporation of CoO@Co yolk-shell nanoparticles and ZnO nanoparticles with graphene sheets as lightweight and high-performance electromagnetic wave absorbing material10.1016/j.jallcom.2017.04.061 ↗
33. Rational design of yolk-shell C@C microspheres for the effective enhancement in microwave absorption10.1016/j.carbon.2015.11.054 ↗
34. The construction of carbon-coated Fe3O4 yolk-shell nanocomposites based on volume shrinkage from the release of oxygen anions for wide-band electromagnetic wave absorption10.1016/j.jcis.2017.10.018 ↗
35. Synthesis and microwave absorption properties of yolk-shell microspheres with magnetic iron oxide cores and hierarchical copper silicate shells10.1021/am3030432 ↗
36. In situ construction of yolk–shell zinc cobaltite with uniform carbon doping for high performance asymmetric supercapacitors10.1039/C8TA01759J ↗
37. Preparation of graphitic oxide10.1021/ja01539a017 ↗
38. Hierarchical shell-core structures of concave spherical NiO nanospines@carbon for high performance supercapacitor electrodes10.1016/j.electacta.2018.10.112 ↗
39. Rational construction of bowl-like MnO2 nanosheets with excellent electrochemical performance for supercapacitor electrodes10.1016/j.cej.2018.05.169 ↗
40. Synthesis of PPy/Ni/RGO and enhancement on its electromagnetic wave absorption performance10.1016/j.ceramint.2018.03.046 ↗
41. Hydrothermally synthesized Zn ferrite/multi-walled carbon nanotubes composite with enhanced electromagnetic-wave absorption performance10.1016/j.jallcom.2017.09.317 ↗
42. Facile synthesis of porous Fe3O4@C core/shell nanorod/graphene for improving microwave absorption properties10.1039/C8RA01838C ↗
43. Enhanced microwave absorption properties of ferroferric oxide/graphene composites with a controllable microstructure10.1039/C5RA22254K ↗
44. Construction of CuS nanoflakes vertically aligned on magnetically decorated graphene and their enhanced microwave absorption properties10.1021/acsami.5b10511 ↗
45. Fe3O4@polyaniline yolk-shell micro/nanospheres as bifunctional materials for lithium storage and electromagnetic wave absorption10.1016/j.apsusc.2017.09.118 ↗
46. Metal organic framework (ZIF-67)-derived hollow CoS2/N-doped carbon nanotube composites for extraordinary electromagnetic wave absorption10.1016/j.compositesb.2018.11.008 ↗
47. Controllable synthesis of porous NiCo2O4/NiO/Co3O4 nanoflowers for asymmetric all-solid-state supercapacitors10.1016/j.cej.2019.02.191 ↗
48. Construction of carnations-like Mn3O4@NiCo2O4@NiO hierarchical nanostructures for high-performance supercapacitors10.1016/j.electacta.2019.04.048 ↗
49. Yolk-shelled ZnCo2O4 microspheres: surface properties and gas sensing application10.1016/j.snb.2017.11.041 ↗
50. Simple synthesis of yolk-shelled ZnCo2O4 microspheres towards enhancing the electrochemical performance of lithium-ion batteries in conjunction with a sodium carboxymethyl cellulose binder10.1039/c3ta13787b ↗
51. Yolk-shell, hollow, and single-crystalline ZnCo2O4 powders: preparation using a simple one-pot process and application in lithium-ion batteries10.1002/cssc.201300300 ↗
52. Two-dimensional mesoporous ZnCo2O4 nanosheets as a novel electrocatalyst for detection of o-nitrophenol and p-nitrophenol10.1016/j.bios.2018.03.021 ↗
53. High densities of magnetic nanoparticles supported on graphene fabricated by atomic layer deposition and their use as efficient synergistic microwave absorbers10.1007/s12274-014-0432-0 ↗
54. Networks constructed by metal organic frameworks (MOFs) and multiwall carbon nanotubes (MCNTs) for excellent electromagnetic waves absorption10.1016/j.matchemphys.2018.01.008 ↗
55. In situ preparation of carbon/Fe3C composite nanofibers with excellent electromagnetic wave absorption properties10.1016/j.compositesa.2016.10.033 ↗
56. Synthesis of flower-like CuS hollow microspheres based on nanoflakes self-assembly and their microwave absorption properties10.1039/C5TA00086F ↗
57. One-pot synthesis of CoFe2O4/graphene oxide hybrids and their conversion into FeCo/graphene hybrids for lightweight and highly efficient microwave absorber10.1039/C4TA05718J ↗
58. Fabrication of porous graphene-Fe3O4 hybrid composites with outstanding microwave absorption performance10.1016/j.compositesa.2017.01.015 ↗
59. Growth of γ-Fe2O3 nanosheet arrays on graphene for electromagnetic absorption applications10.1039/C4RA01082E ↗
60. Facile and green approach to the synthesis of zeolitic imidazolate framework nanosheet-derived 2D Co/C composites for a lightweight and highly efficient microwave absorber10.1016/j.jcis.2018.12.111 ↗
61. Synthesis of polyaniline nanorods and Fe3O4 microspheres on graphene nanosheets and enhanced microwave absorption performances10.1016/j.matchemphys.2018.01.062 ↗
62. Novel nanocapsules with Co–TiC twin cores and regulable graphitic shells for superior electromagnetic wave absorption10.1039/C8RA00040A ↗
63. Three dimensional hexagonal boron nitride nanosheet/carbon nanotube composites with light weight and enhanced microwave absorption performance10.1016/j.compositesa.2018.07.009 ↗
64. Design and microwave absorption properties of thistle-like CoNi enveloped in dielectric Ag decorated graphene composites10.1016/j.jcis.2018.09.016 ↗
65. Composition design and structural characterization of MOF-derived composites with controllable electromagnetic properties10.1021/acssuschemeng.7b01514 ↗
66. Synthesis of lightweight N-doped graphene foams with open reticular structure for high-efficiency electromagnetic wave absorption10.1016/j.cej.2019.02.193 ↗
67. Novel 3D microsheets contain cobalt particles and numerous interlaced carbon nanotubes for high-performance electromagnetic wave absorption10.1016/j.jallcom.2019.01.275 ↗
68. Enhanced microwave absorption in Ni/polyaniline nanocomposites by dual dielectric relaxations10.1063/1.2830995 ↗
69. Synthesis, magnetic and electromagnetic wave absorption properties of porous Fe3O4/Fe/SiO2 core/shell nanorods10.1063/1.3204958 ↗
70. Microwave absorption properties of carbon nanocoils coated with highly controlled magnetic materials by atomic layer deposition10.1021/nn304630h ↗
71. Influence of a graphite shell on the thermal and electromagnetic characteristics of FeNi nanoparticles10.1016/j.carbon.2009.11.011 ↗
72. In situ growth of core-sheath heterostructural SiC nanowire arrays on carbon fibers and enhanced electromagnetic wave absorption performance10.1021/acsami.6b15795 ↗
73. Small magnetic nanoparticles decorating reduced graphene oxides to tune the electromagnetic attenuation capacity10.1039/C6TC02020H ↗
74. Facile synthesis and microwave absorption properties of yolk-shell ZnO-Ni-C/RGO composite materials10.1016/j.cej.2017.09.139 ↗