کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1488383 | 1510722 | 2014 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Porous Fe3O4/CuI/PANI nanosheets with excellent microwave absorption and hydrophobic property Porous Fe3O4/CuI/PANI nanosheets with excellent microwave absorption and hydrophobic property](/preview/png/1488383.png)
• New method to prepare porous nanosheets with multifunction.
• Porous Fe3O4/CuI/PANI nanosheets perform great microwave absorption property.
• Morphology of the samples can be adjusted by changing the molar ratios of Cu2+/aniline.
• Excellent hydrophobic property may enhance the stability of the samples.
Novel porous Fe3O4/CuI/PANI nanosheets were successfully synthesized by a facile in situ redox reaction at room temperature. Remarkably, the morphology and properties of the nanocomposites can be adjusted by changing the molar ratios of Cu2+/aniline. The porous nanocomposite sheets with the molar ratios of Cu2+/aniline at 1:1 exhibit excellent microwave absorption property, which display strong reflection loss over a wide frequency range that can be manipulated by the absorber thickness. The nanocomposites with a coating layer thickness of 2.8 mm exhibit a maximum absorption of −35.3 dB at 13.28 GHz, and show a bandwidth of 3.2 GHz (from frequency of 12.1–15.3 GHz) corresponding to reflection loss at −10 dB. The Fe3O4/CuI/PANI nanocomposites also show excellent hydrophobic property, which may result in stability enhancement of the porous Fe3O4/CuI/PANI nanosheets. Our findings pave a new way to design and prepare porous sheet-like microwave absorption materials based on polyaniline, inorganic semiconducting materials, and Fe3O4 microspheres.
Novel porous nanosheets display strong reflection loss over a wide frequency range that can be manipulated by the absorber thickness. The nanocomposites with a coating layer thickness of 2.8 mm exhibit a maximum absorption of −35.3 dB at 13.28 GHz, and show a bandwidth of 3.2 GHz (from frequency of 12.1–15.3 GHz) corresponding to reflection loss at −10 dB.Figure optionsDownload as PowerPoint slide
Journal: Materials Research Bulletin - Volume 53, May 2014, Pages 58–64