کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10245098 | 47713 | 2005 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization and catalytic studies of PVD synthesized Mo/V/Nb/Te oxide catalysts
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Characterization and catalytic studies of PVD synthesized Mo/V/Nb/Te oxide catalysts Characterization and catalytic studies of PVD synthesized Mo/V/Nb/Te oxide catalysts](/preview/png/10245098.png)
چکیده انگلیسی
Multicomponent Mo/V/Nb/Te oxide catalysts were synthesized using physical vapor deposition (PVD) onto the substrates of Si wafers and of honeycomb cordierites. The PVD films were prepared at different metal deposition sequences and were subsequently calcined at different temperatures and environment (air or N2). The PVD films on Si wafer were characterized using several surface techniques, including X-ray photoelectron spectroscopy (XPS), near-edge X-ray absorption fine structure (NEXAFS), and secondary ion mass spectrometry (SIMS). In parallel, PVD films on cordierites were evaluated in a fixed-bed reactor for the selective oxidation of propane to acrylic acid. The combined synthesis, characterization, and reactor studies provided clear evidence that the surface compositions and the catalytic properties of the Mo/V/Nb/Te oxide catalysts depend strongly on the metal deposition sequence, calcination temperature, and calcination environment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Catalysis - Volume 229, Issue 1, 1 January 2005, Pages 12-23
Journal: Journal of Catalysis - Volume 229, Issue 1, 1 January 2005, Pages 12-23
نویسندگان
A.M. Gaffney, S. Chaturvedi, M.B. Jr., S. Han, D. Le, S.A. Rykov, J.G. Chen,