8 citations · 24 across the 6 of their papers we have counts for
6 papers
Activity of Pd (n = 1-5) Clusters on Alumina Film on NiAl(111) for CO Oxidation: A Molecular Beam Study
Georges Sitja, Claude Henry
Single atom catalyst (SAC) is a vivid new area of research in catalysis. However, the activity in CO oxidation of isolated Pt or Pd atoms, generally supported on an oxide powder, i…
Modifications of statistics under dimer diffusion
Georges Sitja
The diffusion, "explosion" and "evaporation" of dimers and the subsequent coalescence are treated in a formal way by identifying and solving the differential equations deduced from…
Statistics modification under monomer diffusion
Georges Sitja
The diffusion and coalescence of individual atoms on a nanostructured surface are treated in a purely statistical way. From this, analytical formulas are derived which, from a know…
Molecular Beam Study of the CO Adsorption on a Regular Array of PdAu Clusters on Alumina
Georges Sitja, Claude R Henry
The adsorption kinetics of CO on PdAu bimetallic clusters, containing 140 12 atoms and a composition varying between 0% and 55% of Pd atoms, is investigated by a pulsed molec…
Particle size effect on the Langmuir-Hinshelwood barrier for CO oxidation on regular arrays of Pd clusters supported on ultrathin alumina films
Georges Sitja, Héloïse Tissot, Claude Henry
The Langmuir-Hinshelwood barrier (ELH) and the pre-exponential factor (LH) for CO oxidation have been measured at high temperature on hexagonal arrays of Pd clusters supported o…
Regular Arrays of Pt Clusters on Alumina: A New Superstructure on AlO/NiAl (111)
Georges Sitja, Aude Bailly, Maurizio de Santis +2
Alumina ultrathin films obtained by high temperature oxidation of a NiAl (111) surface are a good template to grow regular arrays of metal clusters. Up to now two hexagonal org…