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

页码：273 / 276

页数：4

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