کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1526959 1511850 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dispersion and field emission properties of multi-walled carbon nanotubes by high-energy milling
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Dispersion and field emission properties of multi-walled carbon nanotubes by high-energy milling
چکیده انگلیسی

Multi-walled carbon nanotubes (MWNTs) were high-energy milled for 2 h in texanol after a polycarboxylic acid polymeric dispersant had been added in order to enhance the dispersion. The degree of MWNT dispersion was significantly enhanced by high-energy milling compared to the intact sample, which increased the density of surface-exposed MWNTs with a screen-printed paste. However, the emission properties of high-energy milled MWNTs did not show such a high emission current density relative to their increased surface-exposed density. Further investigation using Raman spectroscopy and X-ray diffraction evidenced the milling-induced MWNT damage, which explained the relatively lower emission current density of high-energy milled MWNTs.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 110, Issues 2–3, 15 August 2008, Pages 363–369
نویسندگان
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