کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1606608 | 1516231 | 2016 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Sandwich structures of graphene@Fe3O4@PANI decorated with TiO2 nanosheets for enhanced electromagnetic wave absorption properties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The novel sandwich structures of graphene@Fe3O4@PANI decorated with TiO2 nanosheets were firstly successfully prepared by simple hydrothermal method and in situ polymerization. VSM results reveal that the nanocomposites have a superparamagnetic behavior. Structure and morphology were characterized by X-ray diffraction, transmission electron microscopy, and field-emission scanning electron microscopy. Electron microscopy images show that TiO2 nanosheets are mostly grown upright on the top of graphene@Fe3O4@PANI support with a random orientation, and form hierarchical structures. Electromagnetic (EM) wave absorption properties of graphene@Fe3O4@PANI@TiO2 nanosheets containing 50wt% paraffin were investigated in the frequency region of 2-18 GHz. The maximum reflection loss of the nanocomposites is up to â41.8 dB at 14.4 GHz with a thickness of 1.6 mm, and the absorption bandwidth of RL < â10 dB is almost up to 3.5 GHz. Thus, the enhanced EM wave absorption properties of graphene@Fe3O4@PANI@TiO2 nanosheets can be used as promising EM wave absorbers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 662, 25 March 2016, Pages 63-68
Journal: Journal of Alloys and Compounds - Volume 662, 25 March 2016, Pages 63-68
نویسندگان
Panbo Liu, Ying Huang, Yiwen Yang, Jing Yan, Xiang Zhang,