کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9567513 | 1503718 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electron energy-loss spectroscopic study of the surface of ceria abrasives
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electron energy-loss spectroscopic study of the surface of ceria abrasives Electron energy-loss spectroscopic study of the surface of ceria abrasives](/preview/png/9567513.png)
چکیده انگلیسی
Surfaces of ceria (CeO2) particles have been studied by electron energy-loss spectroscopy in a field-emission gun scanning transmission electron microscope. All the ceria particles analyzed contained Ce3+ at the surface. Rare-earth impurities such as La were enriched at the surface and were observed for particles ranging from tens to hundreds of nanometers in size. Fluorine in the abrasives corresponded to a lower average cerium valence. Time series investigations indicate that fluorine substitutes on the oxygen sub-lattice and is charge-balanced by some cerium changing from Ce4+ to Ce3+.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 241, Issues 1â2, 28 February 2005, Pages 61-67
Journal: Applied Surface Science - Volume 241, Issues 1â2, 28 February 2005, Pages 61-67
نویسندگان
Shelley R. Gilliss, James Bentley, C. Barry Carter,