کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9577931 1505200 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Controlled synthesis, structure and magnetic properties of Fe1 − xNix alloy nanoparticles attached on carbon nanotubes
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Controlled synthesis, structure and magnetic properties of Fe1 − xNix alloy nanoparticles attached on carbon nanotubes
چکیده انگلیسی
Fe1 − xNix alloy nanoparticles (x = 0.25, 0.50, 0.75), with diameters in the range of 12-15 nm were uniformly attached on the surface of carbon nanotubes by wet chemistry, which were characterized by transmission electron microscopy, high-resolution transmission electron microscopy and X-ray powder diffraction. When x = 0.25, fcc and bcc structure coexist obviously, while when x = 0.50, 0.75, most of Fe1 − xNix alloy nanoparticles have fcc structure. Fe1 − xNix alloy nanoparticles attached on carbon nanotubes have soft magnetic in nature, and the coercivity decreases with increasing Ni concentration and with decreasing the nanoparticles size, the saturation magnetization varies with the Ni concentration changes. These demonstrate that the chemical method here is promising for fabricating Fe-Ni alloy nanoparticles coated on carbon nanotubes for magnetic storage applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics Letters - Volume 406, Issues 1–3, 23 April 2005, Pages 148-153
نویسندگان
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