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Core-Shell Structured SiO 2 @NiFe LDH Composite for Broadband Electromagnetic Wave Absorption.

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  • معلومة اضافية
    • المصدر:
      Publisher: MDPI Country of Publication: Switzerland NLM ID: 101092791 Publication Model: Electronic Cited Medium: Internet ISSN: 1422-0067 (Electronic) Linking ISSN: 14220067 NLM ISO Abbreviation: Int J Mol Sci Subsets: MEDLINE
    • بيانات النشر:
      Original Publication: Basel, Switzerland : MDPI, [2000-
    • الموضوع:
      Silicon Dioxide* ; Absorption, Radiation*; Drug Contamination ; Microspheres ; Microwaves
    • نبذة مختصرة :
      In this work, a novel core-shell structure material, NiFe layered double hydroxide (NiFe LDH) loaded on SiO2 microspheres (SiO2@NiFe LDH), was synthesized by a one-step hydrothermal method, and the spontaneous electrostatic self-assembly process. The morphology, structure, and microwave absorption properties of SiO2@NiFe LDH nanocomposites with different NiFe element ratios were systematically investigated. The results show that the sample of SiO2@NiFe LDH-3 nanocomposite has excellent microwave absorption properties. It exhibits broadband effective absorption bandwidth (RL < −10 dB) of 8.24 GHz (from 9.76 GHz to 18.0 GHz) and the reflection loss is −53.78 dB at the matched thickness of 6.95 mm. It is expected that this SiO2@NiFe-LDH core-shell structural material can be used as a promising non-precious, metal-based material microwave absorber to eliminate electromagnetic wave contamination.
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    • Contributed Indexing:
      Keywords: LDH; SiO2 microspheres; core-shell structure; microwave absorption
    • الرقم المعرف:
      7631-86-9 (Silicon Dioxide)
    • الموضوع:
      Date Created: 20230108 Date Completed: 20230110 Latest Revision: 20230308
    • الموضوع:
      20230308
    • الرقم المعرف:
      PMC9820398
    • الرقم المعرف:
      10.3390/ijms24010504
    • الرقم المعرف:
      36613944