Browsing by Author "Avramova, I."
Now showing items 1-5 of 5
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CeOx/Al2O3 thin films on stainless steel substrate-dynamical X-ray photoelectron spectroscopy investigations
(Elsevier, 2013)The CeOx/Al2O3 thin films on stainless steel with different ceria loading were subjected to a.c. (square wave) pulses at various frequencies in the range 10- 3 to 100 kHz while recording X-ray photoelectron spectra. The ... -
Combined XPS and contact angle studies of ethylene vinyl acetate and polyvinyl acetate blends
(Elsevier, 2011-09-01)In this study, we prepared thin films by blending ethylene vinyl acetate copolymers (EVA) containing 12-33 (wt.%) vinyl acetate (VA) with polyvinyl acetate (PVAc) and high density polyethylene homopolymers. Large area ... -
Spectroscopic characterization of gold supported on tungstated zirconia
(Elsevier, 2012)Gold catalysts supported on tungstated zirconia (containing 5–20 wt% WO3) are prepared by cationic adsorption from aqueous solution of [Au(en)2]Cl3 complex. The materials are characterized by XRD, DRUV–vis spectroscopy ... -
Structural and optical properties of Cu-doped ZnAl2O4 and its application as photocatalyst for Cr(VI) reduction under sunlight
(Elsevier, 2020)Cu-doped ZnAl2O4 spinel oxides (Zn(1-x)CuxAl2O4, 0.0 ≤ x ≤ 1.0) were synthesized by co-precipitation method at 800 °C. The X-ray diffraction analysis of the as-prepared powders confirmed a spinel structure with a space ... -
Structural and optical properties of Cu-substitution of NiAl2O4 and their photocatalytic activity towards Congo red under solar light irradiation
(Elsevier, 2018)The present work focuses on the effect of Cu substitution on the crystal structure and photocatalytic activity of nano-spinel oxides Ni(1−x)CuxAl2O4 (x = 0.0-1.0). The synthesized compounds by co-precipitation route are ...
