Threshold character of temperatures on deuterium thermal desorption in Mg-V composite grown atom-by-atom

Neklyudov, I. M.; Morozov, Oleksandr; Kulish, V.G.; Zhurba, Volodymyr; Galitskiy, A G; Lomino, N.S.; Куприн, А.С.; Овчаренко, В.Д.; Reshetnyak, E.N.

doi:10.1088/1757-899x/38/1/012061

Cited by 1 publication

(4 citation statements)

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“…The deuterium desorption data obtained using Mg-Ti, Mg-V [7] and Mg-Zr [8] composites provide a support for further research into the hydrogen storage materials containing not readily soluble chemical elements in the alloy components.…”

Section: Discussionmentioning

confidence: 74%

“…In our opinion among them are not readily soluble chemical elements or elements which can not interact with components of the composites formed. The literature data confirm that investigations in this direction are promising [5][6][7]. The purpose of this work is to make Mg-Ti composites by the method of atom-by-atom mixing of components and to study the mechanisms of hydrogen storage and its thermoactivated release from the samples obtained.…”

Section: Introductionmentioning

confidence: 77%

“…Behavior of hydrogen in the magnesium-based alloys arouses intense scientific and applied interest that is confirmed by many publications [1][2][3][4][5][6][7][8]. However, the use of such alloys is accompanied by some difficulties, one of which is a high hydrogen desorption temperature (550-600 K).…”

Section: Introductionmentioning

confidence: 99%

“…An exclusive significance of nanocrystalline materials as hydrogen storage materials is due to their unique structural properties which can provide a high sorption capacitance and potentially high concentrations of hydrogen storage. Therefore, naturally, that the reports about investigations of the hydrogen behavior in the nanocrystalline materials are frequent in the literature [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Deuterium desorption temperature of Mg-Ti composites prepared by the method of atom-by-atom component mixing

Morozov¹,

Kulish²,

Zhurba³

et al. 2013

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. The plasma evaporation-sputtering method has been applied to obtain composite materials of the Mg-Ti system. Variations in the temperature of the ion-implanted deuterium desorption as a function of the component concentration are studied. It has been established, that introduction of titanium into magnesium leads to the significant decrease of deuterium desorption temperature, namely, to 400-450 K as compared to ~800 K in the case of deuterium release (desorption) from magnesium. The step-like shape of the deuterium desorption temperature curve evidences on the existence of two different structural states of the Mg-Ti composite depending on the ratio of components. The deuterium temperature drop can be caused by filamentary inclusions composed of titanium atoms in magnesium (insoluble component in magnesium) produced in the process of composite formation and providing the deuterium release from the sample at lower temperature (channels for deuterium diffusion and desorption through the surface barrier). The deuterium desorption data obtained on the example of Mg-Ti composites provide a support for further research into hydrogen storage materials containing not readily soluble chemical elements in the alloy components.

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Section: Discussionmentioning

confidence: 74%

Section: Introductionmentioning

confidence: 77%