Vanadium-based BCC alloys: phase-structural characteristics and hydrogen sorption properties

Lototsky, M.V.; Yartys, V.A.; Zavaliy, I.Yu.

doi:10.1016/j.jallcom.2005.01.139

Cited by 72 publications

(24 citation statements)

References 14 publications

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“…The materials under investigation included Mg (Fluka, 991%; grit 50-150 mesh), Mg-20Ni-8Mm eutectic alloy [11] mixed with 10-35 wt% of the BCC-type V 75 Ti 10 Zr 7.5 Cr 7.5 alloy [12] (for simplicity we will mark it as V alloy in the paper). One sample also contained 5 wt% of graphite (Fluka, 991%; powder, p20 m).…”

Section: Methodsmentioning

confidence: 99%

“…During the in situ SR XRD experiments the as prepared composites were first dehydrogenated by heating the hydrides in dynamic vacuum to 4001C; obtained samples were then re-hydrogenated at temperatures 25-1001C and pressures 6-12.5 bar H 2 . For the hydrogenated V-based BCC alloy three different hydride phases were identified from the SR XRD data: (1) [12].…”

Section: Synchrotron X-ray Diffractionmentioning

confidence: 99%

See 1 more Smart Citation

Combustion-type hydrogenation of nanostructured Mg-based composites for hydrogen storage

Lototsky

Denys

Yartys

2009

Int. J. Energy Res.

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SUMMARYIn this study Reactive Ball Milling in hydrogen gas was used to synthesize nanostructured hydrogenated composites of Mg and V-based alloy. After hydrogen desorption, the nanocomposites exhibited a dramatic facilitation of the rate of H absorption by Mg and reduction of the temperature of onset of hydrogenation. These favourable changes were caused by a synergy of catalytic effect of the V-based alloy on hydrogen absorption by Mg and heat release caused by exothermic hydrogen absorption by the V-based alloy. When the initial interaction temperature exceeded a threshold, rather low, value of 20-1251C, depending on the H 2 pressure, composition of the sample and its total amount, a combustion-type hydrogenation took place. With optimal interaction parameters applied, H absorption was completed in just 5-70 s and was accompanied by a significant heat release. The observed features can be utilized to reach fast recharge of the Mg-based H stores and to develop efficient heat management systems.

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Section: Methodsmentioning

confidence: 99%

Section: Synchrotron X-ray Diffractionmentioning

confidence: 99%

Combustion-type hydrogenation of nanostructured Mg-based composites for hydrogen storage

Lototsky

Denys

Yartys

2009

Int. J. Energy Res.

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show abstract

“…Vanadium-based alloys with BCC structure have high hydrogen storage capacities, good kinetics, and absorb/desorb hydrogen at room temperature, then arose popular interests [1][2][3][4][5]. One of problems to confine the application of such alloys was the high cost of pure vanadium metal.…”

Section: Introductionmentioning

confidence: 99%

Hydrogen storage properties of V–Ti–Cr–Fe alloys

Yan

Chen

Liang

et al. 2008

Journal of Alloys and Compounds

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“…Vanadium-based alloys with BCC structures have high hydrogen storage capacities, good kinetics properties, and can absorb/desorb hydrogen at room temperature [1][2][3][4][5]. One of the problems to confine the applications of these alloys was the high cost of pure vanadium metal.…”

Section: Introductionmentioning

confidence: 99%