کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
701345 1460819 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development of Fe-doped carbon electrode for mass-producing high-yield single-wall carbon nanotubes
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
Development of Fe-doped carbon electrode for mass-producing high-yield single-wall carbon nanotubes
چکیده انگلیسی

High crystallinity single-wall carbon nanotubes (SWNTs) can be synthesized by arc discharge evaporation of Fe-doped carbon electrode in hydrogen mixed gas, but the purity of as-grown SWNTs is strongly affected by the kinds of Fe-doped carbon electrode. Various carbon materials (artificial graphite powder, carbon black, calcined coke, etc.) have been tried to prepare Fe-doped carbon electrodes. The calcined coke, a kind of graphitizing carbon, is suitable for preparing high-quality Fe-doped carbon electrode. Moreover, the heat-treatment of Fe-doped carbon electrode in vacuum at the temperature of 1600 °C also plays an important role. At present, the best carbon electrode containing 1 at.% Fe catalyst is capable of continuously generating SWNTs at a production rate of 8 mg/min, which can be easily purified to obtain high purity SWNTs.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Diamond and Related Materials - Volume 16, Issues 4–7, April–July 2007, Pages 1101–1105
نویسندگان
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