کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1649410 | 1007581 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of bismuth micro- and nanospheres by a simple refluxing method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Well-separated bismuth micro- and nanospheres were successfully prepared from bismuth citrate and urea by a simple refluxing reaction at 198 °C in ethylene glycol in the presence of poly(vinyl pyrrolidone) (PVP). The products were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray microanalysis (EDX). The larger Brunauer–Emmett–Teller (BET) surface area of these micro- and nanospheres was found to be 17.34 m2/g by the results of N2 adsorption. It was found that the amount of PVP have an influence on the morphologies of bismuth nanostructure. The possible growth mechanism of bismuth micro- and nanospheres was also discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 63, Issue 26, 31 October 2009, Pages 2239–2242
Journal: Materials Letters - Volume 63, Issue 26, 31 October 2009, Pages 2239–2242
نویسندگان
Gang Cheng, Jiliang Wu, Feng Xiao, Hui Yu, Zhong Lu, Xianglin Yu, Rong Chen,