کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1419956 986073 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and characterization of stable room temperature bulk ferromagnetic graphite
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Synthesis and characterization of stable room temperature bulk ferromagnetic graphite
چکیده انگلیسی

A novel and inexpensive chemical route leading to obtain macroscopic quantities of room temperature magnetic carbon is reported. This route consists of a controlled etching on the graphite structure, performed by a redox reaction in a closed system between graphite and CuO. X-ray diffraction suggests that this modified graphite could be represented by the coexistence of a matrix of pristine graphite and a foamy-like graphitic structure compressed along the c-axis. This material has a stable and strong ferromagnetic response even at room temperature where it can be attracted by any commercial magnet. At T = 300 K, the saturation magnetic moment, the coercive field and the remnant magnetization are 0.25 emu/g, 350 Oe and 0.04 emu/g, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 44, Issue 3, March 2006, Pages 565–569
نویسندگان
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