Selectivity and mechanism shifts in the reactions of acetaldehyde on oxidized and reduced TiO2(001) surfaces Academic Article uri icon


  • Depending on the oxidation state of the TiO2(001) surface, acetaldehyde can form C4 products by either aldol condensation or reductive coupling routes. Aldol condensation generates crotonaldehyde and crotyl alcohol, and is favored on oxidized, stoichiometric surfaces. Reductive coupling produces butene, and occurs only on reduced surfaces. The switch-over in selectivity with increasing extents of surface oxidation provides important insights into the active site requirements for each of these reactions.

published proceedings


author list (cited authors)

  • Idriss, H., & Barteau, M. A.

citation count

  • 74

complete list of authors

  • Idriss, H||Barteau, MA

publication date

  • September 1996