کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10626645 | 989695 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation of ceria-zirconia and yttria-zirconia mixed oxides of unusual pore structures
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Preparation of ceria-zirconia and yttria-zirconia mixed oxides of unusual pore structures Preparation of ceria-zirconia and yttria-zirconia mixed oxides of unusual pore structures](/preview/png/10626645.png)
چکیده انگلیسی
Highly ordered particulate assemblies of mixed CeO2-ZrO2 and Y2O3-ZrO2 materials have been prepared using a gel-synthesis method. The majority of the particles observed have very regular shapes consisting of sandwiches of parallel pores perpendicular to layers of denser layers. These appear to form from polymeric units of hydrolysed zirconium precursors which facilitate directional growth of the macroscopic moieties. Detailed adsorption experiments and electron microscopy show that two types of pore systems exist in these materials with sizes below 10Â nm together with larger more macroscopic pores of the order of 100Â nm. The preparation is sensitive to the conditions used in synthesis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 31, Issue 7, 2005, Pages 929-935
Journal: Ceramics International - Volume 31, Issue 7, 2005, Pages 929-935
نویسندگان
Michael A. Morris, Helen M. Reidy,