Defect formation during high-energy ball milling in TiO2 and its relation to the photocatalytic activity

Authors :: Amade, Roger
Heitjans, Paul
Indris, Sylvio
Finger, Mina
Haeger, Andreas
Hesse, Diethard
Source :: Journal of Photochemistry & Photobiology A: Chemistry. Sep2009, Vol. 207 Issue 2/3, p231-235. 5p.
Publication Year :: 2009
Abstract: Abstract: High-energy ball milled nanocrystalline TiO2 (anatase) was analyzed by means of electrochemical impedance spectroscopy in a temperature range from 473K to 873K and under reducing and oxidizing atmospheres. The electrical properties are compared with the photocatalytic activity of the samples. [Copyright &y& Elsevier]

Subjects :: *PHOTOCATALYSIS
*TITANIUM dioxide
*MECHANICAL alloying
*NANOCRYSTALS
*ELECTROCHEMICAL analysis
*IMPEDANCE spectroscopy
*PHOTOCONDUCTIVITY
*PHASE transitions

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