کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9761593 | 1498420 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Redox stability of phases based on bismuth oxide studied by voltammetry on microsamples
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Cyclic voltammetry on microsamples was applied to bismuth tungsten oxides and bismuth molybdenum oxides to check their stability to reduction and define their limit of use. In this study, different mechanisms of reduction of bismuth were observed. Aurivillius Bi2WO6 derivatives exhibit a two-step mechanism (Bi0âBi2+ and Bi2+âBi3+), similar to pure bismuth oxide. In contrast, the investigated bismuth molybdenum oxides (Bi26Mo10O69-related phases and Bi2Mo3O12) revealed a one-step mechanism (Bi0âBi3+). A better stability was therefore revealed for bismuth-molybdenum oxides, which are well known for their catalytic properties. This makes these materials attractive for use as membrane for catalytic dense membrane reactor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 176, Issues 19â22, June 2005, Pages 1769-1773
Journal: Solid State Ionics - Volume 176, Issues 19â22, June 2005, Pages 1769-1773
نویسندگان
M. Malys, G. Fafilek, C. Pirovano, R.N. Vannier,