کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1491874 992362 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lamellar Fe/Al2O3 catalyst for high-yield production of multi-walled carbon nanotubes bundles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Lamellar Fe/Al2O3 catalyst for high-yield production of multi-walled carbon nanotubes bundles
چکیده انگلیسی

The lamellar Fe/Al2O3 catalysts were prepared by sol–gel method, and then with these prepared catalysts, carbon nanotubes (CNTs) were synthesized by catalytic chemical vapor deposition (CCVD) method using C2H2 as precursor. The as-prepared CNTs and Fe/Al2O3 catalysts were characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy and Raman spectrum. The results proved that the as-prepared CNTs actually existed in bundles. And the growth of CNTs bundles should be attributed to the lamellar catalysts, which supported the bottom growth mechanism of CNTs. The transition metal of Mo was not introduced in catalysts to produce CNTs bundles, which was different with others’ results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 44, Issue 2, 4 February 2009, Pages 422–425
نویسندگان
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