Browsing by Author "45cb56a1-743e-42e6-adbb-e77768988601"
Now showing items 1-13 of 13
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Degradation mechanisms of MEA characteristics during water electrolysis in solid polymer electrolyte cells
Grigoriev, S.A.; Bessarabov, D.G.; Fateev, V.N. (Springer, 2017)The processes contributing to degradation of characteristics of membrane-electrode assemblies (MEA) of water electrolyzers with solid polymer electrolyte (SPE) are considered. Particularly, the life tests of an electrolysis ... -
Development of a Pt/stainless steel mesh catalyst and its application in catalytic hydrogen combustion
Du Preez, S.P.; Bessarabov, D.G.; Falch, A.; Jones, D.R.; Mota das Neves Quaresma, C. (Elsevier, 2019)In this paper, different methods to prepare a Pt/stainless steel mesh catalyst for catalytic hydrogen combustion are reported. Pt was deposited as a thin layer onto stainless steel mesh as a support matrix. Thermal treatment ... -
The effects of bismuth and tin on the mechanochemical processing of aluminum-based composites for hydrogen generation purposes
Du Preez, S.P.; Bessarabov, D.G. (Elsevier, 2019)The work described in this paper forms part of a study on the mechanochemical processing of Al with dissimilar metals for hydrogen generation purposes. Here, in an effort to contain the cost of the activation of Al, we ... -
Hydrogen generation by means of hydrolysis using activated Al-In-Bi-Sn composites for electrochemical energy applications
Du Preez, S.P.; Bessarabov, D.G. (ESG, 2017)Effective activation compounds are developed to produce hydrogen via hydrolysis of ball-milled Al-In-Bi-Sn composites in tap water at room temperature. Al-In-Bi-Sn composites are successfully activated by 3 h of milling. ... -
Hydrogen generation by the hydrolysis of mechanochemically activated aluminum-tin-indium composites in pure water
Du Preez, S.P.; Bessarabov, D.G. (Elsevier, 2018)This paper presents results of our continuing project on the mechanochemical activation of Al-based composites for hydrogen generation [1,2]. A series of bi- and ternary Al, Sn, and/or In composites were mechanochemically ... -
Hydrogen generation of mechanochemically activated Al-Bi-In composites
Du Preez, S.P.; Bessarabov, D.G. (Elsevier, 2017)The individual and combined effects of Bi and In on the morphology change and reactivity towards hydrogen release of Al during mechanochemical preparation of binary and ternary Al composites were determined. Subsequently, ... -
Math hydrogen catalytic recombiner: engineering model for dynamic full-scale calculations
Avdeenkov, A.V.; Malakhov, A.A.; Bessarabov, D.G.; Sergeev, V.V.; Stepanov, A.V. (Elsevier, 2018)To protect a hermetic enclosure and the equipment and systems of a reactor installation housed in it from damage caused by the ignition (explosion) of hydrogen, most nuclear power plants with pressurized water reactors are ... -
Mathematical methodology and software package for investigation of nonstationary hydrogen permeability in membranes used in electrolysers and hydrogen fuel cells
Beckman, I.N.; Bessarabov, D.G.; Buntseva, I.M. (Elsevier, 2017)As part of the methodology to control gas permeability of functional materials, mathematical approach is considered that takes into account a diffusion process through a plate with the boundary conditions of the 1st and ... -
Nonequilibrium poroelectroelastic theory for polymer electrolytes under conditions of water electrolysis
Kalinnikov, A.A.; Bessarabov, D.G.; Grigoriev, S.A. (Elsevier, 2019)The paper deals with the nonequilibrium poroelectroelastic theory (PEET) for polymer electrolytes (PE) under the conditions of water electrolysis with a view of further use in the theoretical description of mass transfer ... -
On the contamination of membrane-electrode assembles of water electrolyzers with solid polymer electrolyte by the elements of titanium alloys
Grigoriev, S.A.; Bessarabov, D.G.; Glukhov, A.S. (Springer, 2017)The aspects of contamination of membrane–electrode assemblies of water electrolyzers with solid polymer electrolyte by the elements of titanium alloys (Ti and Fe) are considered. These alloys are used as the material for ... -
On the contamination of membrane-electrode assemblies of water electrolysers based on proton exchange membrane in the course of operation.
Grigoriev, S.A.; Bessarabov, D.G.; Grigoriev, A.S.; Kuleshov, N.V.; Fateev, V.N. (BAS, 2018)The issues of contamination of membrane-electrode assemblies (MEAs) of water electrolysers based on proton exchange membrane (PEM) currently pose a subject for investigation. The analysis of structure and chemical composition ... -
Preparation of anodized aluminium oxide at high temperatures using low purity aluminium (Al6082)
Kozhukhova, A.E.; Du Preez, S.P.; Bessarabov, D.G. (Elsevier, 2019)A rapid two-step anodization process was developed to prepare semi-ordered nanoporous anodized aluminium oxide (AAO) layers using an inexpensive aluminium (Al) alloy, Al6082 (97.53% Al) as the Al source material. Al anodizing ... -
Thermodynamical model for hydrogen storage capacity in carbon nanostructures
Avdeenkov, A.V.; Bessarabov, D.G.; Tokarev, A.; Bodrenko, I.V.; Bibikov, A.V. (Elsevier, 2015)A simple thermodynamical model taking into account non-ideality and inhomogeneity of absorbed hydrogen molecular gas has been proposed to calculate hydrogen storage capacity in carbon nanostructures as a function of ...