Surface chemistry determines electron storage capabilities in alcoholic sols of titanium dioxide nanoparticles. A combined FTIR and room temperature EPR investigation

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Electron accumulation in TiO 2 ethanolic sols prepared by the HCl hydrolysis of a titanium alkoxide has been scrutinized by UV-vis and EPR spectroscopy. Unexpectedly, Ti(III) centers, g = 1.9551, formed after controlled monochromatic irradiation of the sols could be detected at room temperature by E...

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Detalles Bibliográficos
Autores principales: Iorio, Y.D., Aguirre, M.E., Brusa, M.A., Grela, M.A.
Formato: JOUR
Lenguaje:English
Materias:
Chloride ions
Electron accumulation
Electron storage
EPR spectroscopy
Ethoxides
FTIR
Hydroxylic groups
Molar ratio
Monochromatic irradiation
Paramagnetic signals
Production efficiency
Reducing species
Room temperature
Room temperature detection
TiO
Titanium alkoxides
Titanium dioxide nanoparticles
Titanium dioxide surfaces
Chlorine compounds
Oxides
Paramagnetic resonance
Paramagnetism
Sols
Surface chemistry
Titanium
Titration
Titanium dioxide
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_19327447_v116_n17_p9646_Iorio
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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