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Luminescence characteristics of magnesium aluminate spinel crystals of different stoichiometry
(Institute of Physics Publishing, 2019)
Magnesium aluminate spinel single crystals with different stoichiometry, MgAl2O4 (1:1 spinel) and MgO 2.5Al2O3 (1:2.5) were investigated using different optical methods (cathode-, photo- and thermally stimulated luminescence ...
Mass recovery of carbonated fabrics of glass fibres after isothermal heating
(Institute of Physics Publishing, 2019)
Leaching of Na+ ions in sodium oxide (Na2O) and silica (SiO2) containing glass is well investigated mainly due to its weak weathering. The object of this study was naturally (at room conditions) leached, steady state product ...
Electronic processes in doped ZnO nanopowders
(Institute of Physics Publishing, 2019)
ZnO nanocrystals, undoped and doped with Iridium or Indium were prepared by solar irradiation in Heliotron reactor in PROMES CNRS facilities, France. The comparative analysis of the excitonic spectra of ZnO single crystal ...
Electro-catalytic and photo-catalytic reformation of CO2–reactions and efficiencies processes (Review)
(Institute of Physics Publishing, 2019)
Energy harvesting with lowest environmental impact is one of key elements for cleaner future. Photocatalytic as well as electrocatalytic CO2 reformation processes are considered as prominent methods. Thus, extensive research ...
Different approaches in sulfonated poly (ether ether ketone) conductivity measurements
(Institute of Physics Publishing, 2019)
Ion conductivity of sulfonated poly (ether ether ketone) (SPEEK) membranes with various degree of sulfonation (DS) was investigated using impedance analysis with different measuring cell configuration and ion conductivity ...
PVA Hydrogel Electrolyte and Porous Polyisoprene Carbon Nanostructure Composite Based Pressure Sensitive Supercapacitor
(Institute of Physics Publishing, 2019)
Narrow operational voltage window can be considered as one of the greatest limitations for aqueous polymer electrolytes. Using freeze-thaw hydrogel preparation method we have synthesized wider potential window electrolytic ...
Optical properties of zinc-iridium oxide thin films
(Institute of Physics Publishing, 2019)
We present the results of an investigation of ultraviolet, visible, near-infrared (UV-Vis-NIR) and X-ray absorption spectroscopy absorption spectra for zinc-iridium oxide (Zn-Ir- O) thin films with various iridium ...
Synthesis and studying of reduced few-layered graphene coatings in gas sensor applications
(Institute of Physics Publishing, 2019)
In this work reduced few-layered graphene (rFLG) nanoparticles were synthesized using electrochemical pulse exfoliation method from waste graphite crucibles. The regular change in voltage polarity in the synthesis process ...
Pressure-induced structural changes in α-MoO3 probed by X-ray absorption spectroscopy
(Institute of Physics Publishing, 2019)
Energy-dispersive X-ray absorption spectroscopy at the Mo K-edge was used to study pressure-induced (up to 36 GPa) changes in the local atomic structure of 2D layered oxide α-MoO3. A linear combination analysis based on ...
Negative thermal expansion of ScF3: First principles vs empirical molecular dynamics
(Institute of Physics Publishing, 2019)
The crystal lattice of cubic scandium fluorine (ScF3) exhibits negative thermal expansion (NTE) over a wide range of temperatures from 10 K to 1100 K. Here the NTE effect in ScF3 is studied using atomistic simulations based ...