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SUMMARY:Titanium dioxide: Interplay between non-stoichiometry\, point and 
 planar bulk defects and surface structure and reactivity - Roger Bennett\,
  Department of Physics\, University of Reading
DTSTART:20101021T150000Z
DTEND:20101021T160000Z
UID:TALK25546@talks.cam.ac.uk
CONTACT:Stephen Walley
DESCRIPTION:In this talk I will present a review of the current understand
 ing of the development of defect structure in the bulk and surface of ruti
 le titanium dioxide and how they relate to departure from ideal stoichiome
 try. Titanium dioxide is the prototypical reducible transition metal oxide
  for academic study and has applications in self cleaning glass\, odour re
 duction and photocatalysis. In our recent work we have related the electro
 nic and geometric structure of the surface by scanning tunneling microscop
 y and photoemission spectroscopy to departure from stoichiometry and ident
 ified the key reaction pathways by which oxidation and reduction occur.
LOCATION:Mott Seminar Room\, Cavendish Laboratory\, Department of Physics
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