1 January 2021
Nikolova, D., Gabrovska, M., Krstić, J., Kolev, H., Karakirova, Y., Radonjić, V., Tzvetkov, P..
(
Димитринка Николова;
Йорданка Каракирова;
Маргарита Габровска;
)
Abstract
The effect of cerium oxide modification of two different SiO2 supports diatomite (macroporous natural origin material) and commercial silica gel (mesoporous industrial material) was examined. UV-vis diffuse reflectance and X-ray photoelectron spectroscopy measurements were used for estimation of the surface electronic state at both modified SiO2 supports combine with data of X-ray diffraction, N2 physisorption technique and electron paramagnetic resonance. Ce3+ ions were found in the supported CeO2 structure over both SiO2 supports after calcination at 400 °C. The CeO2 modification reflects on the texture properties and surface electronic state by stronger Ce−O−Si bond in the case of modified CeO2-silica gel support.
Proceedings of the 15th Int. Conference on Fundamental and Applied Aspects of Physical Chemistry, Željko Čupić and Slobodan Anić (Eds.), Belgrade, Serbia, Society of Physical Chemists of Serbia, 2021, ISBN:978-86-82475-40-8, 163-166 Международно академи
https://cer.ihtm.bg.ac.rs/handle/123456789/8095?locale-attribute=en
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