Search
Now showing items 1-10 of 13
First principles calculations of oxygen reduction reaction at fuel cell cathodes
(Elsevier B.V., 2020)
The efficiency of solid oxide fuel cells (SOFC) depends critically on materials, in particular for the cathode where the oxygen reduction reaction (ORR) occurs. Typically, mixed conducting perovskite ABO3-type materials ...
First-Principles Modelling of N-Doped Co3O4
(Sciendo, 2018)
N-doped Co3O4 is a promising electrocatalyst. By means of first-principles calculations, various concentrations and spatial arrangements of NO atoms were modelled. Mutual interaction of the dopant atoms was analysed with ...
Surface termination effects on the oxygen reduction reaction rate at fuel cell cathodes
(Royal Society of Chemistry, 2018)
The results of first principles calculations of oxygen vacancy and oxygen adsorbate concentrations are analyzed and compared for the polar (La,Sr)O and MnO2 (001) terminations of (La,Sr)MnO3 fuel cell cathode materials. ...
Theoretical investigations of nitrogen doping on Co 3 O 4 for water dissociation catalytically activity
(Institute of Physics Publishing, 2018)
We report the results of theoretical investigations of nitrogen doping on Co 3 O 4 (100) bulk by means of the plane-wave periodic density functional theory (DFT) calculations combined with the Hubbard-U approach and ...
First-Principles Modeling of Oxygen Adsorption on Ag-Doped LaMnO3 (001) Surface
(Springer Nature Switzerland AG, 2020)
The density functional theory (DFT) method has been used to calculate oxygen adsorption on the Ag-doped MnO2- and LaO-terminated (001) LaMnO3 surfaces. The catalytic effect of Ag doping is revealed by comparison of the ...
Ab Initio Modeling of Y and O Solute Atom Interaction in Small Clusters within the bcc Iron Lattice
(Wiley-VCH GmbH, 2018)
Small yttrium and oxygen complexes in the body‐centred cubic (bcc) iron matrix are modeled by performing density functional theory (DFT) calculations. The interaction between Y and O in isolated molecule, rock‐salt crystal ...
Oxygen evolution reaction on a N-doped Co0.5-terminated Co3O4 (001) surface
(De Gruyter, Latvian Academy of Sciences, 2020)
Recent experimental findings suggest that the catalytic activity of Co3O4 for oxygen evolution reaction (OER) could be improved by nitrogen doping. We present preliminary OER modelling on a N-doped Co3O4 surface, with ...
Water Splitting on Multifaceted SrTiO3 Nanocrystals: Computational Study
(Multidisciplinary Digital Publishing Institute (MDPI), 2021)
Recent experimental findings suggest that strontium titanate SrTiO3 (STO) photocatalytic activity for water splitting could be improved by creating multifaceted nanoparticles. To understand the underlying mechanisms and ...
Oxygen Vacancy Formation and Migration within the Antiphase Boundaries in Lanthanum Scandate-Based Oxides: Computational Study
(MDPI, 2022)
The atomic structure of antiphase boundaries in Sr-doped lanthanum scandate (La1−xSrxScO3−δ) perovskite, promising as the proton conductor, was modelled by means of DFT method. Two structural types of interfaces formed by ...
Sr Doping and Oxygen Vacancy Formation in La1−xSrxScO3−δ Solid Solutions: Computational Modelling
(MDPI, 2022)
Sr-doped lanthanum scandate La1−xSrxScO3−δ (LSS) is a promising perovskite-type material for electrochemical applications such as proton conductors. Oxygen vacancy is a common defect in ABO3-type perovskites. It controls ...