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Designing of an rGO-based heterostructure for highly efficient microwave absorption performance and flame retardancy.

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Title: Designing of an rGO-based heterostructure for highly efficient microwave absorption performance and flame retardancy.
Authors: Li, Ying-Ming1 (AUTHOR) 1129957803@qq.com, Li, Yi-Ran1 (AUTHOR), Hu, Wen-Juan1 (AUTHOR), Wang, De-Yi1,2,3 (AUTHOR)
Source: Ceramics International. Oct2023, Vol. 49 Issue 20, p32600-32610. 11p.
Subjects: Electromagnetic wave absorption, Fireproofing, Flame, Heat release rates, Magnetic flux leakage, Impedance matching, Iron-nickel alloys, Microwaves
Abstract: To meet the increasingly serious challenges of electromagnetic pollution and fire hazards, highly efficient electromagnetic absorbing materials with good flame retardancy have been accurately developed. A complex high-performance electromagnetic absorber was designed by doping graphene oxide heterostructures (including zero-dimensional nanoparticles and two-dimensional graphene) containing cobalt, nickel and iron oxyhydroxide through the coordination effect. When 20 wt% CNFO@rGO was incorporated into paraffin, the minimum reflection loss (RL) reached -51.6 dB at a thickness of 3.5 mm, showing a high electromagnetic absorption efficiency. It was concluded that the excellent impedance matching, the best dielectric loss and the higher magnetic loss caused by the heterostructure combined with the electromagnetic parameters, Cole-Cole semicircle, impedance matching (Z) and attenuation coefficient resulted in excellent electromagnetic wave absorption performance. Moreover, the peak heat release (PHRR) and heat release rate (HRC) decreased by 55.5% and 55.1%, respectively, when 10 wt% CNFO@rGO was incorporated into the epoxy resin (EP), indicating enormous potential for the enhancement of flame-retarding electromagnetic absorbing materials. [ABSTRACT FROM AUTHOR]
Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 171367914
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  Data: Designing of an rGO-based heterostructure for highly efficient microwave absorption performance and flame retardancy.
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  Data: <searchLink fieldCode="AR" term="%22Li%2C+Ying-Ming%22">Li, Ying-Ming</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 1129957803@qq.com</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Yi-Ran%22">Li, Yi-Ran</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hu%2C+Wen-Juan%22">Hu, Wen-Juan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+De-Yi%22">Wang, De-Yi</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Ceramics+International%22">Ceramics International</searchLink>. Oct2023, Vol. 49 Issue 20, p32600-32610. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Electromagnetic+wave+absorption%22">Electromagnetic wave absorption</searchLink><br /><searchLink fieldCode="DE" term="%22Fireproofing%22">Fireproofing</searchLink><br /><searchLink fieldCode="DE" term="%22Flame%22">Flame</searchLink><br /><searchLink fieldCode="DE" term="%22Heat+release+rates%22">Heat release rates</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+flux+leakage%22">Magnetic flux leakage</searchLink><br /><searchLink fieldCode="DE" term="%22Impedance+matching%22">Impedance matching</searchLink><br /><searchLink fieldCode="DE" term="%22Iron-nickel+alloys%22">Iron-nickel alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Microwaves%22">Microwaves</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: To meet the increasingly serious challenges of electromagnetic pollution and fire hazards, highly efficient electromagnetic absorbing materials with good flame retardancy have been accurately developed. A complex high-performance electromagnetic absorber was designed by doping graphene oxide heterostructures (including zero-dimensional nanoparticles and two-dimensional graphene) containing cobalt, nickel and iron oxyhydroxide through the coordination effect. When 20 wt% CNFO@rGO was incorporated into paraffin, the minimum reflection loss (RL) reached -51.6 dB at a thickness of 3.5 mm, showing a high electromagnetic absorption efficiency. It was concluded that the excellent impedance matching, the best dielectric loss and the higher magnetic loss caused by the heterostructure combined with the electromagnetic parameters, Cole-Cole semicircle, impedance matching (Z) and attenuation coefficient resulted in excellent electromagnetic wave absorption performance. Moreover, the peak heat release (PHRR) and heat release rate (HRC) decreased by 55.5% and 55.1%, respectively, when 10 wt% CNFO@rGO was incorporated into the epoxy resin (EP), indicating enormous potential for the enhancement of flame-retarding electromagnetic absorbing materials. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.ceramint.2023.07.227
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      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 32600
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      – SubjectFull: Electromagnetic wave absorption
        Type: general
      – SubjectFull: Fireproofing
        Type: general
      – SubjectFull: Flame
        Type: general
      – SubjectFull: Heat release rates
        Type: general
      – SubjectFull: Magnetic flux leakage
        Type: general
      – SubjectFull: Impedance matching
        Type: general
      – SubjectFull: Iron-nickel alloys
        Type: general
      – SubjectFull: Microwaves
        Type: general
    Titles:
      – TitleFull: Designing of an rGO-based heterostructure for highly efficient microwave absorption performance and flame retardancy.
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            NameFull: Li, Ying-Ming
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            NameFull: Li, Yi-Ran
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            NameFull: Hu, Wen-Juan
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            NameFull: Wang, De-Yi
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              Text: Oct2023
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              Y: 2023
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