کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
5021073 1369688 2018 10 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Facile fabrication of boron and nitrogen co-doped carbon@Fe2O3/Fe3C/Fe nanoparticle decorated carbon nanotubes three-dimensional structure with excellent microwave absorption properties
کلمات کلیدی
3-Dimensional reinforcement; Microstructures; Surface analysis; Heat treatment; Carbon@Fe2O3/Fe3C/Fe nanoparticles; Enhanced microwave absorption;
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Facile fabrication of boron and nitrogen co-doped carbon@Fe2O3/Fe3C/Fe nanoparticle decorated carbon nanotubes three-dimensional structure with excellent microwave absorption properties
چکیده انگلیسی

•Three-dimensional boron and nitrogen (3D B/N) co-doped C@Fe2O3/Fe3C/Fe nanoparticle decorated CNTs are fabricated.•These 3D B/N co-doped C@Fe2O3/Fe3C/Fe-CNTs are fabricated via a facile thermal treatment process.•These 3D B/N co-doped C@Fe2O3/Fe3C/Fe-CNTs exhibit excellent microwave absorption properties.

Herein, we report a facile process to massively synthesize three-dimensional (3D) boron and nitrogen co-doped carbon@Fe2O3/Fe3C/Fe nanoparticle decorated carbon nanotubes (B/N co-doped C@Fe2O3/Fe3C/Fe-CNTs). The fabrication involved a simple one-step chemical vapor deposition process. These as-synthesized 3D B/N co-doped C@Fe2O3/Fe3C/Fe-CNTs based absorbers exhibited excellent microwave absorption properties with tunable strong absorption wavebands in the frequency range of 2–18 GHz. A minimum reflection loss (RL) value of −42.6 dB was observed at 6.88 GHz with absorber thickness of 3.5 mm. Moreover, the absorption bandwidth for RL less than −10 dB was as large as 4.14 GHz when the absorber thickness dropped to 2.0 mm. A possible absorption mechanism was proposed in detail, which can be attributed to the synergy of the impedance matching and enhancement of multiple reflection among 3D B/N co-doped C@Fe2O3/Fe3C/Fe nanoparticles.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 132, 1 January 2018, Pages 141-150
نویسندگان
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