کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1526150 995367 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mo/MgO from avalanche-like reduction of MgMoO4 for high efficient growth of multi-walled carbon nanotubes by chemical vapor deposition
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Mo/MgO from avalanche-like reduction of MgMoO4 for high efficient growth of multi-walled carbon nanotubes by chemical vapor deposition
چکیده انگلیسی
MgMoO4 particles prepared from combustion were used as precursor of Mo/MgO catalyst for the growth of multi-walled carbon nanotubes (MWCNTs). The results showed that MgMoO4 particles can break into small particles in a few seconds in the presence of H2 at 1000 °C in an event similar to avalanche to form MgO particles enwrapped with Mo nanoparticles which favours the growth of nanotubes. The egregious high yield of the nanotubes up to 2000% after 40 min growth can be achieved for this specific catalyst system. A model called “avalanche-like reduction” of the MgMoO4 was proposed to explain the formation of high active Mo/MgO catalyst for the growth of nanotubes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 114, Issue 1, 15 March 2009, Pages 173-178
نویسندگان
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