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Surface-nitrogen Removal Studied from Desorption Dynamics

Trend 2002 Surface nitrogen removal.pdf4.25 MBPDF見る/開く

タイトル: Surface-nitrogen Removal Studied from Desorption Dynamics
著者: Kobal, Ivan 著作を一覧する
Kokalj, Anton 著作を一覧する
Horino, Hideyuki 著作を一覧する
Ohno, Yuichi 著作を一覧する
Matsushima, Tatsuo 著作を一覧する
発行日: 2002年
出版者: Research Trends
誌名: Trends in Chemical Physics
巻: 10
開始ページ: 139
終了ページ: 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.
Rights: Copyright (c) 2002 Research Trends
資料タイプ: article (author version)
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 松島 龍夫


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