Dynamical Study of the Adsorption of Hydrogen on the W(001) Surface (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• Dynamical Study of the Adsorption of Hydrogen on the W(001) Surface (Articolo in rivista) (literal)

Anno

• 1992-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1016/0039-6028(92)91250-F (literal)

Alternative label

• A. Forni, M.C. Desjonqueres, D. Spanjaard, G.F. Tantardini (1992)
  Dynamical Study of the Adsorption of Hydrogen on the W(001) Surface
  in Surface science; Elsevier Science Publishers B.V., Amsterdam (Paesi Bassi)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• A. Forni, M.C. Desjonqueres, D. Spanjaard, G.F. Tantardini (literal)

Pagina inizio

• 201 (literal)

Pagina fine

• 206 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni

• Impact Factor 1992: 2.668; SJR 1999: Physical and Theoretical Chemistry, Q1 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://www.sciencedirect.com.pros.lib.unimi.it/science/article/pii/003960289291250F (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 269 (literal)

Rivista

• Surface science (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 6 (literal)

Note

• ISI Web of Science (WOS) (literal)
• Scopus (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• DIPARTIMENTO CHIM FIS & ELETTROCHIM, VIA GOLGI 19, MILAN, ITALY CENS, SRSM, DRECAM, DSM, F-91190 GIF SUR YVETTE, FRANCE UNIV PARIS 11, PHYS SOLIDES LAB, F-91405 ORSAY, FRANCE (literal)

Titolo

• Dynamical Study of the Adsorption of Hydrogen on the W(001) Surface (literal)

Abstract

• The interaction energy of molecular hydrogen with the W(001) surface is expressed by means of a tight-binding model potential. The binding energies of the H atom with the W(001) surface are: 3.03, 2.43 and 1.84 eV, for the four-fold, bridge and top sites, respectively. The potential is used in stochastic quasi-classical trajectories calculations to study the adsorption dynamics of H-2 on the W(001) surface. We have found that the dissociative adsorption probability P(a) decreases rapidly from 67% to 50% when the collision kinetic energy E(col) increases from 0.1 to 0.25 eV, and then it increases slowly to 55% for E(col) = 1 eV. This trend is typical of dynamical processes which proceed by means of a precursor state mechanism, where the molecule is trapped, with no activation energy, in a potential well before dissociation. When thermal beams are simulated, P(a) decreases slowly for increasing values of the beam temperature, as observed experimentally. From our calculations, it comes out that: the H-2 ro-vibrational energy is more effective than the translational one in dissociative adsorption; P(a) follows the total kinetic energy scaling, being practically independent on the angle of incidence of the H-2 beam; some corrugation effects are present on the W(001) surface. (literal)

Editore

• Elsevier Science Publishers B.V. (Editore)

Prodotto di

• Istituto di scienze e tecnologie molecolari (ISTM) (Istituto)
• Nanoingegneria chimica di sistemi assemblati mediante interazioni intermolecolari specifiche (PM.P07.002.002) (Modulo)

Autore CNR

• ALESSANDRA FORNI (Unità di personale interno)

Incoming links:

Prodotto

• Istituto di scienze e tecnologie molecolari (ISTM) (Istituto)
• Nanoingegneria chimica di sistemi assemblati mediante interazioni intermolecolari specifiche (PM.P07.002.002) (Modulo)

Autore CNR di

• ALESSANDRA FORNI (Unità di personale interno)

Editore di

• Elsevier Science Publishers B.V. (Editore)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Surface science (Rivista)