کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
75089 | 49108 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructural analysis of the effects of polyvinyl alcohol content on the porosity of sol–gel derived alumina ceramics
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Microstructural analysis of the effects of polyvinyl alcohol content on the porosity of sol–gel derived alumina ceramics Microstructural analysis of the effects of polyvinyl alcohol content on the porosity of sol–gel derived alumina ceramics](/preview/png/75089.png)
چکیده انگلیسی
Macro- and mesoporous alumina materials were prepared from aluminium triisopropylate by acid catalyzed sol–gel process as non-supported porous membranes and as bulk alumina. The thermal behavior of the bulk alumina gel produced with and without polyvinyl alcohol (PVA) was studied by thermal analysis. The effects of different PVA contents at two different calcination temperatures on the characteristics of the prepared materials were investigated. The variation of mesoporous texture, pore size and morphology, were determined by nitrogen adsorption/desorption analysis and TEM. Macroporous size distribution determined using mercury porosimetry. SEM was used to observe the pore structure of these samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microporous and Mesoporous Materials - Volume 118, Issues 1–3, 1 February 2009, Pages 453–457
Journal: Microporous and Mesoporous Materials - Volume 118, Issues 1–3, 1 February 2009, Pages 453–457
نویسندگان
Zoltán Ecsedi, Ioan Lazău, Cornelia Păcurariu,