Desorption dynamics in N2O decomposition on Pd(110)

被引：25
|
作者：
Ohno, Y [1 ]
Kobal, I
Horino, H
Rzeznicka, I
Matsushima, T
机构：
[1] Hokkaido Univ, Catalysis Res Ctr, Sapporo, Hokkaido 0600811, Japan
[2] Hokkaido Univ, Grad Sch Environm Earth Sci, Sapporo, Hokkaido 0600811, Japan
来源：
APPLIED SURFACE SCIENCE | 2001年 / 169卷
关键词：
thermal desorption; nitrogen oxides; palladium; surface chemical reaction; single-crystal surfaces;
D O I：
10.1016/S0169-4332(00)00668-1
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The decomposition of N2O was studied on Pd(110) through analysis of the angular and velocity distributions of desorbing products by means of angle-resolved thermal desorption combined with time-of-flight techniques. Both desorption and decomposition of N2O(a) were completed below 170 K, simultaneously emitting N-2. N-2 Showed two desorption peaks, beta (1)-N-2 at 152 K and beta (2)-N-2 at 134-140 K. The former revealed an inclined emission at +/-43 degrees off the normal in a plane along the (001) direction and a hyper-thermal translational energy, whereas the latter showed a cosine angular distribution without an excess translational energy. Different desorption channels were proposed to yield these desorption. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：273 / 276
页数：4
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