کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9607857 | 46064 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Reduction behavior of nanostructured gold catalysts supported on mesoporous titania and zirconia
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Reduction behavior of nanostructured gold catalysts supported on mesoporous titania and zirconia Reduction behavior of nanostructured gold catalysts supported on mesoporous titania and zirconia](/preview/png/9607857.png)
چکیده انگلیسی
The reduction behavior of gold supported catalysts on mesoporous titania and zirconia was studied. The TPR, ESR, HRTEM and XPS methods were applied for the characterization of the state and structure of the catalysts. It was established that the nature of support plays a decisive role in the reactivity of the catalysts, in particular in their redox properties. The mesoporous nanostructured materials used in this study as supports for gold nanoparticles show very different behavior under hydrogen treatment. The ability of nanostructured zirconia to create F-centers leads to different charging of the supports surface, i.g. the supported gold nanoparticles which is the main reason for the observed differences between the both studied gold supported catalysts on mesoporous titania and zirconia.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis A: General - Volume 291, Issues 1â2, 12 September 2005, Pages 85-92
Journal: Applied Catalysis A: General - Volume 291, Issues 1â2, 12 September 2005, Pages 85-92
نویسندگان
L. Ilieva, J.W. Sobczak, M. Manzoli, B.L. Su, D. Andreeva,