کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
58820 | 47173 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Origin of transient species present on the surface of a PdO/γ-Al2O3 catalyst during the methane combustion reaction
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Operando DRIFTS was applied to the study of the evolution of surface species formed on a Pd (2 wt.%)/γ-Al2O3 catalyst in various conditions. No differences were observed as a function of the initial oxidation state of palladium. Formates/carbonates species were identified at low temperature (<400 °C) and disappeared when CO2 production started. These species come from the Pd-catalyzed interaction of CO with the alumina support, while CO2 induces hydrogenocarbonates formation at low temperature (<300 °C). Their presence does not explain the inhibiting effect of CO2 observed in CCM on Pd/γ-Al2O3 catalysts.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 112, Issues 1–4, 15 March 2006, Pages 153–156
Journal: Catalysis Today - Volume 112, Issues 1–4, 15 March 2006, Pages 153–156
نویسندگان
O. Demoulin, M. Navez, P. Ruiz,