par Visart de Bocarmé, Thierry
Référence Imaging & microscopy, 8, 1, page (19-21)
Publication Publié, 2006-03
Article sans comité de lecture
  • Catalytic Reactions on Crystallites: Imaging and In-situ Chemical Probing at the Nanometer Scale
Auteur:Visart de Bocarmé, Thierry
Informations sur la publication:Imaging & microscopy, 8, 1, page (19-21)
Statut de publication:Publié, 2006-03
Sujet CREF:Chimie
Chimie des solides
Chimie des surfaces et des interfaces
Catalyses hétérogène et homogène
Physique des phénomènes non linéaires
Physique des surfaces
Mots-clés:field ion microscopy
atom probe
Surface Reactions
Note générale:Most of the catalysts used in industry or in automotive pollution control are conditioned as a dispersion of small catalytic particles on a support of high specific area. Assuming a similar bulk composition, the extremity of a sharp metallic tip can mimic one of these catalytic particles. Field ion microscopy (FIM) is used to characterize these surfaces at the atomic scale at cryogenic temperatures and subsequently to image catalytic surface reactions at temperatures where they usually occur.