Movies related to AZNano

Diffusion of oxygen vacancies on TiO₂(110) surfaces

Very little is known about the diffusion of defects on transition-metal oxide surfaces, but recent STM dynamics studies resulted in unprecedented, new insight into this important problem. The model system studied was the rutile TiO2(110) surface. The distinct surface features, imaged as the bright spots observed between Ti rows, are assigned to hydroxyl groups on the bridging oxygen.
A movie (3.9 Mb) show the water-mediated hydroxyl jumps in a big area
A smaller region shows the a water molecule moving a hydroxyl group to an adjacent oxygen row (0.7 Mb)
A third movie (3.1 Mb) shows hydroxyl-group jumps on a TiO2(110) surface with Au clusters.
See also Thought Leader Series