کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1525269 | 1511839 | 2010 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Controlled synthesis of Nd(OH)3 and Nd2O3 nanoparticles by microemulsion method
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
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چکیده انگلیسی
Three morphological structures of neodymium hydroxide (Nd(OH)3) nanoparticles, i.e. cube, sphere, and oval-like, have been synthesized in microemulsion systems. Calcination of the Nd(OH)3 nanoparticles with different morphologies at 900 °C in air yields neodymium oxide (Nd2O3) nanoparticles with the same morphological structures as those of their Nd(OH)3 precursors. The Nd(OH)3 nanoparticles are characterized by DSC-TGA, XRD and TEM, and the Nd2O3 nanoparticles by XRD and TEM. The morphological structures of the Nd(OH)3 and Nd2O3 nanoparticles are controlled via the variation of the molar ratio of H2O to CTAB (Ï). Experimental results show that the stirring time has no effects on the morphological structures of the Nd(OH)3 nanoparticles, but rather has a significant impact on the sizes of the Nd(OH)3 nanoparticles under the same Ï. Possible formation mechanisms of the morphological structure of Nd(OH)3 are proposed and discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 122, Issues 2â3, 1 August 2010, Pages 362-367
Journal: Materials Chemistry and Physics - Volume 122, Issues 2â3, 1 August 2010, Pages 362-367
نویسندگان
Wenqing Zhu, Jin Ma, Lei Xu, Wenzhao Zhang, Yashao Chen,