کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5426010 1395872 2006 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The catalytic reduction of NO by H2 on Ru(0 0 0 1): Observation of NHads species
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
The catalytic reduction of NO by H2 on Ru(0 0 0 1): Observation of NHads species
چکیده انگلیسی

Adsorption of NO and the reaction between NO and H2 were investigated on the Ru(0 0 0 1) surface by X-ray photoelectron spectroscopy (XPS). Surface composition was measured after NO adsorption and after the selective catalytic reduction of nitric oxide with hydrogen in steady-state conditions at 320 K and 390 K in a 30:1 mixture of H2 and NO (total pressure = 10−4 mbar). After steady-state NO reduction, molecularly adsorbed NO in both the linear on-top and threefold coordinations, NHads and Nads species were identified by XPS. The coverage of the NHads and Nads species was higher after the reaction at 390 K than the corresponding values at 320 K. Strong destabilisation of Nads by Oads was detected. A possible reaction mechanism is discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 600, Issue 2, 15 January 2006, Pages 370-379
نویسندگان
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