Record number :
Title of article :
TiO2 nanocrystal particles and electrodes. The combined role of pH and metal substrate
Author/Authors :
Ardizzone، نويسنده , , S. and Cappelletti، نويسنده , , G. and Minguzzi، نويسنده , , A. and Rondinini، نويسنده , , S. and Vertova، نويسنده , , A.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
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Abstract :
In this work titania nanoparticles and layers, deposited onto metal supports (Ti and Au), have been prepared by combining a sol–gel precipitation with hydrothermal growth steps. This composite route implying also a final calcination at 300 °C yields nanocrystalline anatase which shows the presence of electron trap sites localized within the band gap. The powders and layers are characterized for phase composition, crystallinity (XRD) and morphology (SEM). The role played by metal substrate and pH on the features of the electrodes were investigated by CV and impedance measurements.
Keywords :
Trap sites , Electrochemical impedance spectroscopy , Cyclic voltammetry , TiO2 layers , TiO2 nanocrystals
Journal title :
Journal of Electroanalytical Chemistry
Serial Year :
Link To Document :