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

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

Research output: Contribution to journalConference articlepeer-review

24 Citations (Scopus)


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
Issue number1-3 PART 2
Publication statusPublished - 2004 Sept 20
Externally publishedYes
EventProceedings of the 22nd European Conference on Surface Science - Prague, Czech Republic
Duration: 2003 Sept 72003 Sept 12


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

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry


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