Қазақ ұлттық қыздар педагогикалық университеті / Казахский национальный женский педагогический университет

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  • Некоторые метрики заблокированы вашими 
    Тип записи:Публикация,
    Theoretical investigations of nitrogen doping on Co3O4for water dissociation catalytically activity
    (IOP Publishing, 2018-11-01) ;
    Yuri A. Mastrikov
    ;
    Eugene A. Kotomin
    ;
    ;
    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 statistical thermodynamics.Using accurate DFT+ U calculations, we have shown that bulk Co ions denote charges in value 0.017 – 0.57e. For further water adsorption process studies was selected structures with most changes in charges in Co ions: (3) structure for n = 25%, (2) structure forn = 12.5% and structure for (1) structure.
    Цитирования (OpenAlex) 1
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    Тип записи:Публикация,
    First-Principles Modelling of N-Doped Co 3 O 4
    (De Gruyter Open, 2018-10-01) ;
    Yuri A. Mastrikov
    ;
    Eugene A. Kotomin
    Abstract N-doped Co 3 O 4 is a promising electrocatalyst. By means of first-principles calculations, various concentrations and spatial arrangements of N O atoms were modelled. Mutual interaction of the dopant atoms was analysed with respect to single N O atom. Charge redistribution, caused by doping, was calculated.
    Цитирования (OpenAlex) 1Цитирования (OpenCitations) 1
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    Тип записи:Публикация,
    Oxygen Evolution Reaction on a N-Doped Co 0.5 -Terminated Co 3 o 4 (001) Surface
    (De Gruyter Open, 2020-12-01) ; ;
    Талгат Муратович Инербаев
    ;
    Yuri A. Mastrikov
    ;
    Eugene A. Kotomin
    Abstract Recent experimental findings suggest that the catalytic activity of Co 3 O 4 for oxygen evolution reaction (OER) could be improved by nitrogen doping. We present preliminary OER modelling on a N-doped Co 3 O 4 surface, with varying concentration of the dopant and its spatial distribution around Co oct and Co tet adsorption sites. The overpotential was calculated for two adsorption sites on seven types of N-doped Co 3 O 4 surface. The largest calculated overpotential value for a N-doped surface was ~1V.
    Цитирования (OpenAlex) 1