Interaction of nitric oxide with Pt(1 0 0). A fast X-ray photoelectron spectroscopy study

• Tipo: Artigo em Revista Científica Internacional
• Data: 2002

Autores

Rienks, EDL (Autor) Outra; Bakker, JW (Autor) Outra; Baraldi, A (Autor) Outra; Sónia Carabineiro (Autor) Outra; Lizzit, S (Autor) Outra; Weststrate, CJ (Autor) Outra; Nieuwenhuys, BE (Autor) Outra

Revista

Título: Surface Science

Vol. 516

Páginas: 109-117

ISSN: 0039-6028

Editora: Elsevier

Indexação

Scopus - 24 Citações

Outras Informações

ID Authenticus: P-008-PB5

DOI: 10.1016/s0039-6028(02)01910-6

Abstract (EN): The interaction of nitric oxide (NO) with the clean, reconstructed (1 0 0) surface of platinum is studied using synchrotron X-ray photoelectron spectroscopy. It is found that molecular adsorption at 200 K yields two different molecular NO species. Above 250 K, NO is found to adsorb both dissociatively and molecularly, giving rise to an oxygen/NO coadsorption structure with a molecular coverage that is half of that at 200 K. At 375 K, adsorption is found to be exclusively dissociative. Furthermore, it is found that NO dissociation yields two different atomic oxygen species. No significant coverage of atomic nitrogen is observed indicating fast combination of nitrogen atoms upon NO dissociation.

Idioma: Inglês

Tipo (Avaliação Docente): Científica