کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1583662 | 1514888 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrothermal synthesis and characterization of rare earth doped ceria nanoparticles
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Hydrothermal synthesis and characterization of rare earth doped ceria nanoparticles Hydrothermal synthesis and characterization of rare earth doped ceria nanoparticles](/preview/png/1583662.png)
چکیده انگلیسی
Ceria (CeO2) and rare earth doped ceria (REÂ =Â Pr, Gd and Sm) of different doping concentration (10, 20 and 30Â mol%) were synthesized by hydrothermal synthesis method, achieving nano-particles with weak agglomeration. The nano-particles were studied using X-ray diffraction (XRD), transmission electron microscopy (TEM), BET specific surface area measurement and thermal analysis. The size of all doped nano-particles was in the range of 13-25Â nm, while the un-doped ceria nano-particles were in the range of 12-16Â nm. The effect of precursor concentration on microstructure and morphology of the final powder is reported in this paper. The increase of precursor concentration led to decreases in crystallite size, increase in lattice parameter and increase in the BET specific surface area with Ce3+ from 0.005 to 0.015Â M. The highest rare earth doping ratio is found to be 20, 10 and 20Â mol% for Pr, Gd and Sm, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 466, Issues 1â2, 25 September 2007, Pages 223-229
Journal: Materials Science and Engineering: A - Volume 466, Issues 1â2, 25 September 2007, Pages 223-229
نویسندگان
A.I.Y. Tok, S.W. Du, F.Y.C. Boey, W.K. Chong,