Multi-directional N2 desorption in N2O decomposition on Rh(1 1 0)

Kenji Imamura, Hideyuki Horino, Izabela Irena Rzeznicka, Ivan Kobal, Anton Kokalj, Yuichi Ohno, Bernard E. Nieuwenhuys, Atsuko Hiratsuka, Tatsuo Matsushima

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The angular distribution of desorbing N2 was studied in the decomposition of N2O(a) on Rh(1 1 0) at 50-200 K with angle-resolved thermal desorption. N2 desorption showed five peaks at around 70 K (β5-N2), 95 K (β4-N2), 115 K (β3-N2), 140 K (β2-N2), and 160 K (β1-N2). β1-N2 yielded a cosine distribution, whereas the others involved desorption components that collimated at either 69±3° or 27±3° off normal into the [0 0 1] direction. The 27° component was suppressed on clean (1×1) facets. The 69° component is proposed to be due to decomposition of N 2O oriented in the [0 0 1] direction.

Original languageEnglish
Pages (from-to)1076-1081
Number of pages6
JournalSurface Science
Volume566-568
Issue number1-3 PART 2
DOIs
Publication statusPublished - 2004 Sep 20
Externally publishedYes

Fingerprint

Desorption
desorption
Decomposition
decomposition
Thermal desorption
Angular distribution
flat surfaces
angular distribution
Direction compound

Keywords

  • Angle resolved DIET (including electron stimulated desorption ion angular distribution (ESDIAD))
  • Catalysis
  • Nitrogen oxides
  • Rhodium
  • Surface chemical reaction
  • Thermal desorption

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Imamura, K., Horino, H., Rzeznicka, I. I., Kobal, I., Kokalj, A., Ohno, Y., ... Matsushima, T. (2004). Multi-directional N2 desorption in N2O decomposition on Rh(1 1 0). Surface Science, 566-568(1-3 PART 2), 1076-1081. https://doi.org/10.1016/j.susc.2004.06.054

Multi-directional N2 desorption in N2O decomposition on Rh(1 1 0). / Imamura, Kenji; Horino, Hideyuki; Rzeznicka, Izabela Irena; Kobal, Ivan; Kokalj, Anton; Ohno, Yuichi; Nieuwenhuys, Bernard E.; Hiratsuka, Atsuko; Matsushima, Tatsuo.

In: Surface Science, Vol. 566-568, No. 1-3 PART 2, 20.09.2004, p. 1076-1081.

Research output: Contribution to journalArticle

Imamura, K, Horino, H, Rzeznicka, II, Kobal, I, Kokalj, A, Ohno, Y, Nieuwenhuys, BE, Hiratsuka, A & Matsushima, T 2004, 'Multi-directional N2 desorption in N2O decomposition on Rh(1 1 0)', Surface Science, vol. 566-568, no. 1-3 PART 2, pp. 1076-1081. https://doi.org/10.1016/j.susc.2004.06.054
Imamura K, Horino H, Rzeznicka II, Kobal I, Kokalj A, Ohno Y et al. Multi-directional N2 desorption in N2O decomposition on Rh(1 1 0). Surface Science. 2004 Sep 20;566-568(1-3 PART 2):1076-1081. https://doi.org/10.1016/j.susc.2004.06.054
Imamura, Kenji ; Horino, Hideyuki ; Rzeznicka, Izabela Irena ; Kobal, Ivan ; Kokalj, Anton ; Ohno, Yuichi ; Nieuwenhuys, Bernard E. ; Hiratsuka, Atsuko ; Matsushima, Tatsuo. / Multi-directional N2 desorption in N2O decomposition on Rh(1 1 0). In: Surface Science. 2004 ; Vol. 566-568, No. 1-3 PART 2. pp. 1076-1081.
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AU - Kokalj, Anton

AU - Ohno, Yuichi

AU - Nieuwenhuys, Bernard E.

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AB - The angular distribution of desorbing N2 was studied in the decomposition of N2O(a) on Rh(1 1 0) at 50-200 K with angle-resolved thermal desorption. N2 desorption showed five peaks at around 70 K (β5-N2), 95 K (β4-N2), 115 K (β3-N2), 140 K (β2-N2), and 160 K (β1-N2). β1-N2 yielded a cosine distribution, whereas the others involved desorption components that collimated at either 69±3° or 27±3° off normal into the [0 0 1] direction. The 27° component was suppressed on clean (1×1) facets. The 69° component is proposed to be due to decomposition of N 2O oriented in the [0 0 1] direction.

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