کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10569554 973770 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Defect structure of the mixed ionic-electronic conducting Sr[Ti,Fe]Ox solid-solution system - Change in iron oxidation states and defect complexation
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Defect structure of the mixed ionic-electronic conducting Sr[Ti,Fe]Ox solid-solution system - Change in iron oxidation states and defect complexation
چکیده انگلیسی
The oxidation/reduction behavior of iron in the Sr[Ti1 − yFey]Ox solid-solution system, for y ∈ [0.002; 0.05], under various oxygen partial pressures was examined through the use of electron paramagnetic resonance (EPR) spectroscopy. The results indicate that iron has been induced to move between di- tri- and tetravalent oxidation states. This results with the centers functioning as either a source (oxidation) or as a sink (reduction) for electrons. In particular it is shown that the reducibility of iron decreases with increasing iron content.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 184, Issue 1, 3 March 2011, Pages 47-51
نویسندگان
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