Second International Conference on the Structure of Surfaces (CSOS-II)
Atomic oxygen forms a metastable c(2×2) phase on Pd(100) under conditions of rapid adsorption (high pressure) and slow diffusion (low sample temperature). One possible explanation is that oxygen molecules require an 8-fold ensemble of empty sites for dissociative chemisorption, and that subsequent adatom motion is limited and creates no neighboring pairs of filled sites. We describe the properties of the adlayer predicted by such a model.
Chang, S. -L.; Sanders, D. E.; Evans, James W.; and Thiel, Patricia A., "Surface Structures Determiend by Kinetic Processes: Adsorption and Diffusion of Oxygen on Pd(100)" (1988). Ames Laboratory Conference Papers, Posters, and Presentations. 72.