کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7954287 1513770 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation of diameter-controlled multi-wall carbon nanotubes by an improved floating-catalyst chemical vapor deposition method
ترجمه فارسی عنوان
تهیه نانولوله های کربنی چند جداره تحت کنترل با قطر با استفاده از روش بهبود رسوب بخار شیمیایی شناور کاتالیست
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد شیمی مواد
چکیده انگلیسی
Multi-wall carbon nanotubes (MWCNTs) with controlled diameters were synthesized by an improved-floating catalyst chemical vapor deposition method, using toluene and ferrocene as a carbon source and catalyst precursor, respectively. Ferrocene was sublimed in a heater and carried as a gas mixed with toluene vapor into a reactor where MWCNTs were formed. The effects of the sublimation temperature, hydrogen content in the gas mixture and gas flow rate on the diameter and diameter distribution of the CNTs formed were investigated. Results indicated that the CNT diameter distributions could be controlled by changing the sublimation temperature. The higher the sublimation temperature, the narrower the distribution of CNT diameters. The average CNT diameter decreased and levelled off with increasing hydrogen content in the gas mixture from 0 to 40 vol%. The CNT diameter decreased with increasing gas flow rate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: New Carbon Materials - Volume 32, Issue 3, June 2017, Pages 234-241
نویسندگان
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