In-situ synthesis of carbon nanotubes decorated by magnetite nanoclusters and their applications as highly efficient and enhanced microwave absorber

Lan, Yingying; Li, Xinghua; Zong, Yan; Li, Laurent; Sun, Yong; Tan, Guoguo; Feng, Juan; Ren, Zhaoyu; Zheng, Xinliang

doi:10.1016/j.ceramint.2016.09.072

Cited by 39 publications

(13 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In detail, the RL loss peak of this sample is constructed by two subpeaks located at the C-band (4−8 GHz) and Ku-band (12− 18 GHz). 5 More details about reflection loss data are shown in Table 2. Recently, the enhancement of microwave absorption performance caused by interfacial polarization has attracted wide attention.…”

Section: Resultsmentioning

confidence: 99%

“…16 Moreover, it has been demonstrated that the EM wave absorption ability of Fe 3 O 4 strongly depends on its crystalline quality, grain size, and morphology. 17−20 Accordingly, extensive efforts have been devoted to synthesizing Fe 3 O 4 by different methods and processes, including coprecipitation, 21 solvothermal method, 22 sol−gel method, 23 electrospinnning, 15 reflux heating, 5 and microwave assisted synthesis. 24 However, the crystallinity of the particles obtained by the coprecipitation method is relatively poor with its grains agglomerated, resulting in uneven particle size.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electromagnetic Wave Absorption Performance on Fe₃O₄ Polycrystalline Synthesized by the Synergy Reduction of Ethylene Glycol and Diethylene Glycol

Huang

Yin

et al. 2018

J. Phys. Chem. C

View full text Add to dashboard Cite

Fe3O4 nanoparticles were synthesized by hydrothermal method with the synergy reduction of ethylene glycol (MEG) and diethylene glycol (DEG). The purity, grain size, magnetism, and the microwave absorption performance of the samples can be controlled by the concentration of DEG in the precursor solution. Under the optimized condition of synthesis, the product is a highly crystallized cubic Fe3O4 and the crystallite size of Fe3O4 is about 44–60 nm with the saturation magnetization of about 96 emu/g. The Fe3O4 paraffin composites exhibit excellent microwave absorption properties at the frequency range of 1–18 GHz, which are attributed to the electron transition resonance, natural resonance, and polarization of Fe3O4. The minimum reflection loss of Fe3O4 synthesized under the MEG and DEG content of 3.58 and 2.10 mol/L, respectively, can reach −42 dB at a thickness of 2.1 mm. And the effective absorption bandwidth of the samples can reach 3.9 GHz (7.3–11.2 GHz) at a thickness of 2.5 mm. The result demonstrates that Fe3O4 nanoparticles synthesized with DEG as auxiliary reducing agent and surfactant have a good microwave absorption performance.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electromagnetic Wave Absorption Performance on Fe₃O₄ Polycrystalline Synthesized by the Synergy Reduction of Ethylene Glycol and Diethylene Glycol

Huang

Yin

et al. 2018

J. Phys. Chem. C

View full text Add to dashboard Cite

show abstract

“…In which the ferrites have been widely used as the microwave absorber due to the special magnetic property, high Curie temperature, thermo-stable, anti-abrasion, and lower cost etc. [14]. As a kind of magnetic recording materials, the MnFe 2 O 4 is a common ferrite with spinel structure and has been used in the field of microwave absorption for the past few years [15].…”

Section: Introductionmentioning

confidence: 99%

Preparation of SiO2-MnFe2O4 Composites via One-Pot Hydrothermal Synthesis Method and Microwave Absorption Investigation in S-Band

et al. 2019

View full text Add to dashboard Cite

MnFe2O4 NPs are successfully decorated on the surface of SiO2 sheets to form the SiO2-MnFe2O4 composite via one-pot hydrothermal synthesis method. The phase identification, morphology, crystal structure, distribution of elements, and microwave absorbing properties in S-band (1.55~3.4 GHz) of the as-prepared composite were investigated by XRD, SEM, TEM, and Vector Network Analyzer (VNA) respectively. Compared with the pure MnFe2O4 NPs, the as-prepared SiO2-MnFe2O4 composite exhibits enhanced microwave absorption performance in this frequency band due to the strong eddy current loss, better impedance matching, excellent attenuation characteristic, and multiple Debye relaxation processes. The maximum reflection loss of −14.87 dB at 2.25 GHz with a broader −10 dB bandwidth over the frequency range of 1.67~2.9 GHz (1.23 GHz) can be obtained at the thickness of 4 mm. Most importantly, the preparation method used here is relatively simple, hence such composite can be served as a potential candidate for effective microwave absorption in S-band.

show abstract

“…At this stage, MAMs have already been extensively investigated; they include carbon materials [5,6,7], conducting polymers [8,9,10], ceramic materials [11,12,13], magnetic metals and alloys [14,15,16], ferrites [17,18,19], etc. Among these materials, ferrites are widely used as MAMs for their advantages of high Curie temperature, special magnetic property, good chemical and thermo-stability, and low costs [20]. However, pure magnetic ferrites are not sufficient as efficient microwave absorbers due to the unilateral magnetic loss mechanism resulting in a poor impedance matching condition.…”

Section: Introductionmentioning

confidence: 99%

Two-Step Solvothermal Synthesis of (Zn0.5Co0.5Fe2O4/Mn0.5Ni0.5Fe2O4)@C-MWCNTs Hybrid with Enhanced Low Frequency Microwave Absorbing Performance

Yin

Zhang

et al. 2019

Nanomaterials

View full text Add to dashboard Cite

In this study, the quaternary hybrid of (Zn0.5Co0.5Fe2O4/Mn0.5Ni0.5Fe2O4)@C-MWCNTs with high-performance in low frequency electromagnetic absorption was synthesized via a facile two-step solvothermal synthesis method. The physicochemical properties as well as electromagnetic parameters and microwave absorption performance were characterized by XRD, SEM, TEM, RS, TGA, and VNA, respectively. The results indicate a nuclear-shell morphology of this hybrid for amorphous carbon coated on the surface of Zn0.5Co0.5Fe2O4 and Mn0.5Ni0.5Fe2O4 mixed polycrystalline ferrites. In addition, the MWCNTs synchronously enwind in the nuclear-shell NPs to form a special cross-linking structure. The outstanding low frequency microwave absorption property is attributed to the synergistic effect of dielectric and magnetic loss, better impedance matching condition, and excellent attenuation characteristics of the as-prepared paramagnetic quaternary hybrid. Maximum RL of −35.14 dB at 0.56 GHz with an effective absorption bandwidth in the range of 0.27–1.01 GHz can be obtained with thickness of 5 mm. This hybrid exhibits superior low frequency microwave absorption properties compared with other ferrite-carbon nanocomposites. This investigation provides a new route to prepare suitable candidates for the absorption of electromagnetic waves in a low frequency band on account of its good performance and simple preparation process.

show abstract

In-situ synthesis of carbon nanotubes decorated by magnetite nanoclusters and their applications as highly efficient and enhanced microwave absorber

Cited by 39 publications

References 41 publications

Electromagnetic Wave Absorption Performance on Fe₃O₄ Polycrystalline Synthesized by the Synergy Reduction of Ethylene Glycol and Diethylene Glycol

Electromagnetic Wave Absorption Performance on Fe₃O₄ Polycrystalline Synthesized by the Synergy Reduction of Ethylene Glycol and Diethylene Glycol

Preparation of SiO2-MnFe2O4 Composites via One-Pot Hydrothermal Synthesis Method and Microwave Absorption Investigation in S-Band

Two-Step Solvothermal Synthesis of (Zn0.5Co0.5Fe2O4/Mn0.5Ni0.5Fe2O4)@C-MWCNTs Hybrid with Enhanced Low Frequency Microwave Absorbing Performance

Contact Info

Product

Resources

About

In-situ synthesis of carbon nanotubes decorated by magnetite nanoclusters and their applications as highly efficient and enhanced microwave absorber

Cited by 39 publications

References 41 publications

Electromagnetic Wave Absorption Performance on Fe3O4 Polycrystalline Synthesized by the Synergy Reduction of Ethylene Glycol and Diethylene Glycol

Electromagnetic Wave Absorption Performance on Fe3O4 Polycrystalline Synthesized by the Synergy Reduction of Ethylene Glycol and Diethylene Glycol

Preparation of SiO2-MnFe2O4 Composites via One-Pot Hydrothermal Synthesis Method and Microwave Absorption Investigation in S-Band

Two-Step Solvothermal Synthesis of (Zn0.5Co0.5Fe2O4/Mn0.5Ni0.5Fe2O4)@C-MWCNTs Hybrid with Enhanced Low Frequency Microwave Absorbing Performance

Contact Info

Product

Resources

About

Electromagnetic Wave Absorption Performance on Fe₃O₄ Polycrystalline Synthesized by the Synergy Reduction of Ethylene Glycol and Diethylene Glycol

Electromagnetic Wave Absorption Performance on Fe₃O₄ Polycrystalline Synthesized by the Synergy Reduction of Ethylene Glycol and Diethylene Glycol