کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9781280 | 1510835 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Properties of Ce-Zr-La-O nano-system with ruthenium modified surface
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Structural peculiarities of Ce-Zr-La-O and Ce-Zr-La-O/Ru samples in mean of catalytic properties are compared. The samples (Ce:Zr = 1:1, La = 10÷30 mol.%, Ru = 1.5 wt.%) were obtained by sol-gel method (X-samples) and co-precipitation (P-samples). It is shown that Ce0.45Zr0.45La0.1O2âδ/Ru X-samples are characterized by high thermal stability and the highest catalytic activity in partial methane oxidation reaction. According to XRD, BET, FTIR, EPR and XPS data it is concluded that the difference in the samples catalytic activity is caused by various disposition of Ru-containing phase on the support surface. The distinction in the dimension of Ru-containing particles (3D or 2D) is conditioned by structural peculiarities of Ce0.45Zr0.45La0.1O2âδ and Ce0.35Zr0.35La0.3O2âδP- and X-samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Solid State Chemistry - Volume 33, Issues 2â4, 2005, Pages 317-325
Journal: Progress in Solid State Chemistry - Volume 33, Issues 2â4, 2005, Pages 317-325
نویسندگان
Elena V. Frolova, M. Ivanovskaya, V. Sadykov, G. Alikina, A. Lukashevich, S. Neophytides,