Opomnik: Vabilo na Preglov kolokvij / Invitation to the Pregl colloquium, Četrtek / Thursday 29. 6. 2017, ob / at 14:00

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Vabilo na Preglov kolokvij / Invitation to the Pregl colloquium


Prof. Bunsho Ohtani
Institute for Catalysis, Hokkaido University, Sapporo, Japan
Email: ohtani at cat.hokudai.ac.jp<mailto:ohtani at cat.hokudai.ac.jp>

Četrtek / Thursday 29. 6. 2017, ob / at 14:00

Velika predavalnica Kemijskega inštituta /
Great Lecture Hall, National Institute of Chemistry;
Hajdrihova 19, Ljubljana



A Novel Concept of Identification of Metal-oxide Powders
by Energy-resolved Density of Electron Traps

Energy-resolved distribution of electron traps (ERDT) as well as conduction-band bottom (CBB) in metal oxide particles as a function of energy from valence-band (VB) top has been evaluated by newly developed reversed double-beam photoacoustic spectroscopy (RDB-PAS), in which photoabsorption of electrons in ETs directly excited from VB by irradiation of intense continuous light is measured by photoacoustic spectroscopy (PAS) using modulated LED light at 625 nm.  In this study, how to use ERDT/CBB patterns as a finger print for identification of metal oxide (titania, niobia and the others) particles having band gap and ETs by weighted degree of coincidence multiplied by the degrees of coincidence of ERDT patterns, total density of ETs and CBB, and correlation between degree of coincidences of ERDT/CBB patterns and photocatalytic activities are discussed.
info: natasa.novak.tusar at ki.si<mailto:natasa.novak.tusar at ki.si>



Brigita Pirc
Odnosi z javnostmi / Public Relations

[KI]

[KI]



Kemijski inštitut / National Institute of Chemistry
Hajdrihova 19
SI-1000 Ljubljana
Slovenija / Slovenia
Telefon / Phone: 00386 1 476 02 25
brigita.pirc at ki.si<mailto:brigita.pirc at ki.si>     www.ki.si<http://www.ki.si/>





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