کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5438903 | 1398189 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spectral properties of spherical boron nitride prepared using carbon spheres as template
ترجمه فارسی عنوان
خواص طیفی کربنیک نیترید بور با استفاده از کربن به عنوان الگو ساخته شده است
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
نانومواد کروی، نیترید بور کربن، قالب، فوتولومینسانس،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
چکیده انگلیسی
Spherical boron nitride nanoparticles have been successfully fabricated by temperature-controlled pyrolysis procedure in a N2 atmosphere, using boron acid and urea as the precursors. The carbon spheres were prepared from glucose (C6H12O6) by a hydrothermal method as a template to be used. Comprehensive scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and Fourier infrared spectrum (IR) characterizations all confirm that the obtained products are spherical boron nitride. The amount of C6H12O6 and reaction time were found to affect the morphology and structure of the as-prepared products. The average diameter of the spherical boron nitride nanoparticles synthesized with the addition of C6H12O6 is about 0.3-1 µm. The spherical boron nitride has a high surface area of 176.78 m2gâ1 and ~3.5 nm pore size. The as-synthesized nanospheres also exhibit strong photoluminescence (PL) bands at 436, 454, 486, and 616 nm under 312 nm excitation, indicating that they could have potential application in novel optical devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 43, Issue 4, March 2017, Pages 3569-3575
Journal: Ceramics International - Volume 43, Issue 4, March 2017, Pages 3569-3575
نویسندگان
Weifang Han, Jiaping Wang, Shicai Liu, Chunhua Ge, Shiwei Cao, Bo Song, Jie Wang, Xiangdong Zhang,