Preparation and microwave absorbing property of Ni–Zn ferrite-coated hollow glass microspheres with polythiophene

Li, Lindong; Chen, Xingliang; Qi, Shuhua

doi:10.1016/j.jmmm.2016.05.101

Cited by 22 publications

(6 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure b shows the spherical particles made with different materials as the function of RC min and EAB. For hollow glass spheres, Fe 3 O 4 @C, HCM-microspindles, their pristine high densities limit their practical applications. Other metal oxide (ZnO spheres, MnO 2 microspheres, Ni@SnO 2 core–shell sphere, porous Co/CoO sphere) and metal sulfide (CuS hollow sphere, ZnS sphere) all show good EM wave absorption performance.…”

Section: Resultsmentioning

confidence: 99%

“…Meanwhile, this special structure is benefit for its lower density . As a result, hollow MnO 2 spheres, hollow glass spheres coated Ni–Zn ferrite, hollow ZnO spheres, hollow CdSe nanospheres, yolk–shell Ni@SnO 2 , and flowerlike CuS hollow spheres are being developed. ,− Compared with these metal oxides, carbon material with lower pristine density and better resistance to chemical corrosion can be an ideal candidate. Actually, porous carbon, − hollow carbon spheres, , and yolk shell carbon spheres have been investigated.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Carbon Hollow Microspheres with a Designable Mesoporous Shell for High-Performance Electromagnetic Wave Absorption

Yin

Zhu

et al. 2017

ACS Appl. Mater. Interfaces

444

192

View full text Add to dashboard Cite

In this work, mesoporous carbon hollow microspheres (PCHMs) with designable mesoporous shell and interior void are constructed by a facile in situ stöber templating approach and a pyrolysis-etching process. The PCHMs are characterized by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectra, Raman spectroscopy, and nitrogen adsorption and desorption system. A uniform mesoporous shell (pore size 4.7 nm) with a thickness of 55 nm and a cavity size of 345 nm is realized. The composite of paraffin mixed with 20 wt % PCHMs exhibits a minimum reflection coefficient (RC) of -84 dB at 8.2 GHz with a sample thickness of 3.9 mm and an effective absorption bandwidth (EAB) of 4.8 GHz below -10 dB (>90% electromagnetic wave is attenuated). Moreover, the composite of phenolic resin mixed with 20 wt % PCHMs exhibits an ultrawide EAB of 8 GHz below -10 dB with a thinner thickness of 2.15 mm. Such excellent electromagnetic wave absorption properties are ascribed to the large carbon-air interface in the mesoporous shell and interior void, which is favorable for the matching of characteristic impedance as compared with carbon hollow microspheres and carbon solid microspheres. Considering the excellent performance of PCHMs, we believe the as-fabricated PCHMs can be promising candidates as highly effective microwave absorbers, and the design philosophy can be extended to other spherical absorbers.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Carbon Hollow Microspheres with a Designable Mesoporous Shell for High-Performance Electromagnetic Wave Absorption

Yin

Zhu

et al. 2017

ACS Appl. Mater. Interfaces

444

192

View full text Add to dashboard Cite

show abstract

“…Besides, detailed microwave absorption mechanisms will be further explained in the following section. Moreover, the comparison of electromagnetic wave absorption performance between Ni 0.3 Mn 0.7 Fe 2 O 4 /carbonized chaff-N 2 and other ferrite composites reported in recent literature has been listed in the Table . − It can be noted that the microwave absorption performance of ferrites in the GHz range can be improved by compositing them with other materials processing different loss mechanisms; however, the frequency position of absorbing peak corresponding to the Ni 0.3 Mn 0.7 Fe 2 O 4 /carbonized chaff-N 2 composite prepared here is obviously the lowest.…”

Section: Results and Discussionmentioning

confidence: 85%

Novel Microwave Absorber of Ni_xMn_1–xFe₂O₄/Carbonized Chaff (x = 0.3, 0.5, and 0.7) Based on Biomass

Peng

Zhang

et al. 2019

ACS Omega

View full text Add to dashboard Cite

A novel magnetic nanocomposite of Ni x Mn 1– x Fe 2 O 4 /carbonized chaff ( x = 0.3, 0.5, and 0.7) has been synthesized successfully via the co-carbonization and hydrothermal method. The microstructure, morphology, complex permittivity and permeability, and microwave absorbing properties were systematically studied by X-ray diffraction, scanning electron microscopy, and a vector network analyzer. Compared to the pure Ni 0.5 Mn 0.5 Fe 2 O 4 NPs, the Ni 0.3 Mn 0.7 Fe 2 O 4 /carbonized chaff-N 2 composite exhibits an optimal microwave absorption property at 4 mm as the mass percent of carbonized chaff is 10 wt %, the maximum reflection loss of which can reach −14.58 dB at 1.91 GHz with the −10 dB frequency bandwidth in the range of 1.46–2.41 GHz (0.95 GHz). The enhanced electromagnetic wave absorbing performance is ascribed to the good synergistic effect among laminated structures, better impedance matching condition, strong natural resonance loss, Debye dipolar relaxation to some extent, and so forth. Most importantly, this study provides a novel way to prepare easily degradable, environment-friendly, and high-efficiency electromagnetic wave absorbers by utilizing the structural property of renewable biomaterials.

show abstract

“…New process for detoxification and reutilization of waste cathode ray tube (CRT) funnel glass development [119] The composite of HGMs coated by Ni 0.7 Zn 0.3 Fe 2 O 4 particles was fabricated via sol-gel method, and then the ternary composite (HMG/Ni 0.7 Zn 0.3 Fe 2 O 4 /PT) was synthesized by in situ polymerization by Li et al [120]. A temperature resistance buoyancy material was manufactured by means of a tertbutyl alcohol gel casting process with borosilicate glass (BG) and HGMs as the matrix and filler, respectively by Ren et al [121].…”

Section: Figure 22mentioning

confidence: 99%

Glass Microspheres

Karasu

DEMİREL

ÖZTUVAN

et al. 2019

El-Cezeri Fen Ve Mühendislik Dergisi

View full text Add to dashboard Cite

Glass microspheres are microscopic spheres of glass manufactured for a wide variety of uses in thermal insulation coating, putty, plastic casting polyester, radome, synthetic foam, adhesives, printed circuit board substrate, bowling, fan blades, and caulking materials, emulsion explosives, golf, sealant, pipeline insulation materials, artificial marble, PVC, low density oil drilling, light cement etc. Glass microspheres are usually between 1 and 1000 micrometres in diameter, although the sizes can range from 100 nanometres to 5 millimetres in diameter. Microspheres are spherical particles that can be distinguished into two categories; solid or hollow. This paper presented a general overview of glass microspheres.

show abstract

Preparation and microwave absorbing property of Ni–Zn ferrite-coated hollow glass microspheres with polythiophene

Cited by 22 publications

References 24 publications

Carbon Hollow Microspheres with a Designable Mesoporous Shell for High-Performance Electromagnetic Wave Absorption

Carbon Hollow Microspheres with a Designable Mesoporous Shell for High-Performance Electromagnetic Wave Absorption

Novel Microwave Absorber of Ni_xMn_1–xFe₂O₄/Carbonized Chaff (x = 0.3, 0.5, and 0.7) Based on Biomass

Glass Microspheres

Contact Info

Product

Resources

About

Preparation and microwave absorbing property of Ni–Zn ferrite-coated hollow glass microspheres with polythiophene

Cited by 22 publications

References 24 publications

Carbon Hollow Microspheres with a Designable Mesoporous Shell for High-Performance Electromagnetic Wave Absorption

Carbon Hollow Microspheres with a Designable Mesoporous Shell for High-Performance Electromagnetic Wave Absorption

Novel Microwave Absorber of NixMn1–xFe2O4/Carbonized Chaff (x = 0.3, 0.5, and 0.7) Based on Biomass

Glass Microspheres

Contact Info

Product

Resources

About

Novel Microwave Absorber of Ni_xMn_1–xFe₂O₄/Carbonized Chaff (x = 0.3, 0.5, and 0.7) Based on Biomass