Removal pathways of surface nitrogen in a steady-state NO + CO reaction on Pd(110) and Rh(110): Angular and velocity distribution studies

Izabela Irena Rzeznicka, Yunsheng Ma, Gengyu Cao, Tatsuo Matsushima

研究成果: Article

29 引用 (Scopus)

抄録

The angular and velocity distributions of desorbing products N2 and O2 were studied in a steady-state NO + CO reaction on Pd(110) and Rh(110) by cross-correlation time-of-flight techniques. The CO2 desorption sharply collimated along the surface normal on both surfaces. On the other hand, N2 desorption on Pd(110) sharply collimated along about 40° off the surface normal in the plane along the [001] direction below around 650 K, yielding a translational temperature of about 3600 K. At higher temperatures, the normally directed desorption was relatively enhanced. On Rh(110), desorbing N2 sharply collimated along the surface normal, yielding a translational temperature of about 2500 K. The inclined desorption was assigned to the decomposition of the intermediate, N2O(a) → N2(g) + O(a), and the normally directed component was proposed to be due to the associative desorption of adsorbed nitrogen atoms, 2N(a) → N2(g). The branching of these pathways was analyzed on Pd(110).

元の言語English
ページ(範囲)14232-14243
ページ数12
ジャーナルJournal of Physical Chemistry B
108
発行部数38
DOI
出版物ステータスPublished - 2004 9 23
外部発表Yes

Fingerprint

Angular distribution
Carbon Monoxide
Velocity distribution
Desorption
Nitrogen
angular distribution
velocity distribution
desorption
nitrogen
nitrogen atoms
Temperature
cross correlation
adatoms
Decomposition
decomposition
Atoms
temperature
products

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

これを引用

@article{1f32d8c27d4b4941b1008ae45ce95d4a,
title = "Removal pathways of surface nitrogen in a steady-state NO + CO reaction on Pd(110) and Rh(110): Angular and velocity distribution studies",
abstract = "The angular and velocity distributions of desorbing products N2 and O2 were studied in a steady-state NO + CO reaction on Pd(110) and Rh(110) by cross-correlation time-of-flight techniques. The CO2 desorption sharply collimated along the surface normal on both surfaces. On the other hand, N2 desorption on Pd(110) sharply collimated along about 40° off the surface normal in the plane along the [001] direction below around 650 K, yielding a translational temperature of about 3600 K. At higher temperatures, the normally directed desorption was relatively enhanced. On Rh(110), desorbing N2 sharply collimated along the surface normal, yielding a translational temperature of about 2500 K. The inclined desorption was assigned to the decomposition of the intermediate, N2O(a) → N2(g) + O(a), and the normally directed component was proposed to be due to the associative desorption of adsorbed nitrogen atoms, 2N(a) → N2(g). The branching of these pathways was analyzed on Pd(110).",
author = "Rzeznicka, {Izabela Irena} and Yunsheng Ma and Gengyu Cao and Tatsuo Matsushima",
year = "2004",
month = "9",
day = "23",
doi = "10.1021/jp0379603",
language = "English",
volume = "108",
pages = "14232--14243",
journal = "Journal of Physical Chemistry B Materials",
issn = "1520-6106",
publisher = "American Chemical Society",
number = "38",

}

TY - JOUR

T1 - Removal pathways of surface nitrogen in a steady-state NO + CO reaction on Pd(110) and Rh(110)

T2 - Angular and velocity distribution studies

AU - Rzeznicka, Izabela Irena

AU - Ma, Yunsheng

AU - Cao, Gengyu

AU - Matsushima, Tatsuo

PY - 2004/9/23

Y1 - 2004/9/23

N2 - The angular and velocity distributions of desorbing products N2 and O2 were studied in a steady-state NO + CO reaction on Pd(110) and Rh(110) by cross-correlation time-of-flight techniques. The CO2 desorption sharply collimated along the surface normal on both surfaces. On the other hand, N2 desorption on Pd(110) sharply collimated along about 40° off the surface normal in the plane along the [001] direction below around 650 K, yielding a translational temperature of about 3600 K. At higher temperatures, the normally directed desorption was relatively enhanced. On Rh(110), desorbing N2 sharply collimated along the surface normal, yielding a translational temperature of about 2500 K. The inclined desorption was assigned to the decomposition of the intermediate, N2O(a) → N2(g) + O(a), and the normally directed component was proposed to be due to the associative desorption of adsorbed nitrogen atoms, 2N(a) → N2(g). The branching of these pathways was analyzed on Pd(110).

AB - The angular and velocity distributions of desorbing products N2 and O2 were studied in a steady-state NO + CO reaction on Pd(110) and Rh(110) by cross-correlation time-of-flight techniques. The CO2 desorption sharply collimated along the surface normal on both surfaces. On the other hand, N2 desorption on Pd(110) sharply collimated along about 40° off the surface normal in the plane along the [001] direction below around 650 K, yielding a translational temperature of about 3600 K. At higher temperatures, the normally directed desorption was relatively enhanced. On Rh(110), desorbing N2 sharply collimated along the surface normal, yielding a translational temperature of about 2500 K. The inclined desorption was assigned to the decomposition of the intermediate, N2O(a) → N2(g) + O(a), and the normally directed component was proposed to be due to the associative desorption of adsorbed nitrogen atoms, 2N(a) → N2(g). The branching of these pathways was analyzed on Pd(110).

UR - http://www.scopus.com/inward/record.url?scp=5044222050&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=5044222050&partnerID=8YFLogxK

U2 - 10.1021/jp0379603

DO - 10.1021/jp0379603

M3 - Article

AN - SCOPUS:5044222050

VL - 108

SP - 14232

EP - 14243

JO - Journal of Physical Chemistry B Materials

JF - Journal of Physical Chemistry B Materials

SN - 1520-6106

IS - 38

ER -