Surface-nitrogen Removal Studied from Desorption Dynamics

Kobal, Ivan; Kokalj, Anton; Horino, Hideyuki; Ohno, Yuichi; Matsushima, Tatsuo

Surface-nitrogen Removal Studied from Desorption Dynamics

Kobal, Ivan; Kokalj, Anton; Horino, Hideyuki et al.

Trends in Chemical Physics, 2002, 10, 139-178

Permalink : https://hdl.handle.net/2115/14617

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アクセス権	open access
URI	https://hdl.handle.net/2115/14617
タイトル	Surface-nitrogen Removal Studied from Desorption Dynamics
著者	Kobal, Ivan ; Kokalj, Anton ; Horino, Hideyuki ; Ohno, Yuichi ; Matsushima, Tatsuo
著者名 Kobal, Ivan
著者名 Kokalj, Anton
著者名 Horino, Hideyuki
e-Rad_Researcher 80001725 著者名 Ohno, Yuichi
e-Rad_Researcher 30002116 著者名 Matsushima, Tatsuo
言語	英語
発行日	2002
出版者	Research Trends
収録物名	Trends in Chemical Physics
巻(号)	10
ページ	139-178
抄録	The removal of adsorbed nitrogen from catalyst surfaces is one of the key processes in proceeding efficient catalytic treatments of nitrogen oxides in exhaust gases from automotive and stationary sources. This review summarizes the typical characteristics of three removal processes of surface-nitrogen on metal surfaces, i.e., (i) 2N(a) → Nz(g), (ii) N(a) + NO(a) → N2O(a) → N2(g) + O(a) and (iii) NO(a) + O(a) → NO2(a) → NO3-(a) → N2(g). In the first process desorbing N2 is collimating along the surface normal direction and is vibrationally excited because a large amount of the binding energy is released in the associative process. N2 in the second process collimates into a highly inclined direction on flat surfaces because N2O lies on the surface immediately before dissociation. These characteristics are exemplified to be useful to examine the reaction pathway of NOx decomposition on catalysts.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	Copyright (c) 2002 Research Trends
PISSN	0972-4346