Structure-Reactivity Relationships of Anatase and Rutile TiO2 Nanocrystals Measured by In Situ Vibrational Spectroscopy
|Periodical||Solid State Phenomena (Volume 162)|
|Main Theme||Solid State Chemistry and Photocatalysis of Titanium Dioxide|
|Edited by||Maria K. Nowotny and Janusz Nowotny|
|Citation||Lars Österlund, 2010, Solid State Phenomena, 162, 203|
|Online since||June, 2010|
|Keywords||Anatase, Formate, Formic Acid, Fourier Transform Infrared, Nanocrystal, Rutile, Spectroscopy, TiO2|
A comprehensive analysis of structural-reactivity relations on TiO2 nanocrystals is presented. Using an interplay between TEM, X-ray diffraction and vibrational spectroscopy of well-defined anatase and rutile TiO2 nanocrystals correlations between the adsorbate structure of formic acid and the corresponding photo-induced decomposition rate are described. It is demonstrated that the detailed bonding configuration determines the decomposition rate. Generalizations and implications of the findings are discussed.