کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1648566 | 1007560 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A facile method to synthesize hierarchical SiO2@CdSe and CdSe hollow spheres
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
In this paper, a facile method was developed to synthesize SiO2@CdSe particles by using silica colloidal spheres which efficiently avoided complex prior surface modification. In the experiment, ammonia was introduced to activate silica colloidal spheres with negative charge, which acted as active sites for the nucleation of CdSe nanocrystals around silica colloidal spheres. Then the corresponding CdSe hollow spheres were obtained by dissolving the silica cores. The TEM results exhibited CdSe hollow spheres were consisted of nanorods. On the basis of experimental results, the formation process of the hollow spheres was studied and possible growth mechanism for one-step coating process was proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 65, Issue 11, 15 June 2011, Pages 1601–1604
Journal: Materials Letters - Volume 65, Issue 11, 15 June 2011, Pages 1601–1604
نویسندگان
Yongqiang Wang, Bingfang Zou, Guihui Li, Shaomin Zhou,