کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10639962 | 995862 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
One-step synthesis of titanium oxide nanoparticles by spray pyrolysis of organic precursors
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
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چکیده انگلیسی
Titanium oxide (titania) nanoparticles (with a nominal size of about 10Â nm) were synthesized directly from three organic precursors: titanium tetraisopropoxide (TTIP), and water-soluble titanium sources TC-300® and TC-400®, by using a low-pressure spray pyrolysis (LPSP) method. Effects of temperature, solvent, concentration and precursor type have been investigated systematically. We found that a higher temperature and a higher concentration were beneficial for the formation of nanoparticles. Addition of ethanol as a co-solvent improved breakup of droplets, and subsequently formation of nanoparticles. Water-soluble titanium sources showed great potentials for preparation of titania nanoparticles. The nominal size of nanoparticles calculated from electron microscopical images agreed well with that estimated from corresponding X-ray diffraction patterns, implying that nanoparticles were single crystals. The possible mechanism of particle formation in the LPSP process is also provided.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: B - Volume 123, Issue 3, 25 November 2005, Pages 194-202
Journal: Materials Science and Engineering: B - Volume 123, Issue 3, 25 November 2005, Pages 194-202
نویسندگان
Wei-Ning Wang, I. Wuled Lenggoro, Yoshitake Terashi, Tae Oh Kim, Kikuo Okuyama,