کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10632039 | 992381 | 2005 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic ordering of ferric oxide within SiO2-based mesoporous materials
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Magnetic ordering of ferric oxide within SiO2-based mesoporous materials Magnetic ordering of ferric oxide within SiO2-based mesoporous materials](/preview/png/10632039.png)
چکیده انگلیسی
Nanostructural ferric oxide was encapsulated within one-dimensional (1-D) silicate mesoporous molecular materials, resulting in the formation of nanocomposites. The resulting nanocomposites were characterized by UV-vis, IR, TEM, EPR and X-ray diffraction. The occluded Fe2O3 nanostructures were found to evince optical spectra and magnetic properties that were significantly different from that of bulk Fe2O3. EPR measurements indicate that the various nanocomposites (whose dimensions were controllable by the pore sizes of the silicate materials), when sufficiently loaded with small Fe2O3 nanoparticles, possess nonzero absorptions at zero applied magnetic field, as well as significant microwave absorption capacities as a function of applied magnetic field strength.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 40, Issue 10, 6 October 2005, Pages 1713-1725
Journal: Materials Research Bulletin - Volume 40, Issue 10, 6 October 2005, Pages 1713-1725
نویسندگان
Haiquan Guo, Xiaoming Zhang, Min-Hui Cui, Renu Sharma, Nan-Loh Yang, Daniel L. Akins,