کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5396472 | 1505751 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation of coordination changes in substituted transition-metal oxides by K-edge XANES: Beyond the pre-edge
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Investigation of coordination changes in substituted transition-metal oxides by K-edge XANES: Beyond the pre-edge Investigation of coordination changes in substituted transition-metal oxides by K-edge XANES: Beyond the pre-edge](/preview/png/5396472.png)
چکیده انگلیسی
Transition-metal oxides are important materials whose properties can be tuned through selective substitution of the constituent elements. For oxygen deficient materials, substitution can lead to variations in coordination number (CN). To understand these changes in CN, the pre-edge peak intensity, resulting primarily from a 1s to n-1d transition, from first-row transition-metal K-edge XANES spectra can be used. However, investigation of these peaks from spectra of second-row transition-metals can be difficult owing to lower spectral resolutions. It is shown here, through examination of Ca2Fe2âxGaxO5, SrFe1âxZrxO3âδ, and (ZrO2)x(SiO2)1âx, that changes in CN also lead to significant variations of the main absorption edge.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electron Spectroscopy and Related Phenomena - Volume 184, Issues 3â6, April 2011, Pages 192-195
Journal: Journal of Electron Spectroscopy and Related Phenomena - Volume 184, Issues 3â6, April 2011, Pages 192-195
نویسندگان
Michael W. Gaultois, John E. Greedan, Andrew P. Grosvenor,