Hydrogen sorption properties of compounds based on BCC Ti1−xV1−yCr1+x+y alloys

Miraglia, S.; Rango, Patricia de; Rivoirard, Sophie; Fruchart, D.; Charbonnier, Jean; Skryabina, N. E.

doi:10.1016/j.jallcom.2012.05.008

Cited by 55 publications

(35 citation statements)

References 14 publications

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“…After the incubation time, the absorption proceeds quite rapidly and full capacity is reached in less than 300 s for both pure vanadium and vanadium substituted alloys. The maximum capacity is close to 3.2 wt % of hydrogen, which is slightly higher than other Ti-V based materials that was reported in the literature [24][25][26][27]. Rietveld refinements were performed on the three patterns and results are shown in Table 2.…”

Section: Crystal Structurementioning

confidence: 78%

Replacement of Vanadium by Ferrovanadium in a Ti-Based Body Centred Cubic (BCC) Alloy: Towards a Low-Cost Hydrogen Storage Material

2018

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Featured Application: Cost reduction of metal hydrides for hydrogen storage. Abstract:We report here the effect on hydrogen sorption behavior of replacing vanadium by ferrovanadium (FeV) in Ti-V-Cr Body Centred Cubic (BCC) solid solution alloys. The compositions studied were Ti 1.56 V 0.36 Cr 1.08 and Ti 1.26 V 0.63 Cr 1.11 . Both of the alloys were synthesized by melting with 4 wt % of Zr 7 Ni 10 in order to enhance the first hydrogenation (i.e., activation) kinetics. The ferrovanadium substitution leads to the same microstructure as the vanadium pristine alloys and no significant change in the lattice parameters was found. However, a longer incubation time was observed in the activation process for the FeV substituted alloy. Finally, the replacement of vanadium by ferrovanadium did not have a noticeable impact on the hydrogen capacities, heat of formation, and entropy.

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Section: Crystal Structurementioning

confidence: 78%

Replacement of Vanadium by Ferrovanadium in a Ti-Based Body Centred Cubic (BCC) Alloy: Towards a Low-Cost Hydrogen Storage Material

2018

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“…The TieVeCr alloys exhibit rather fast hydrogen sorption kinetics and a good hydrogen absorbing capacity, up to 3.7 w% under a few MPa H 2 -gas pressure [49e53]. Besides, it was found that small amount additions of Zr 7 Ni 10 (for~4 wt.%) to TieVeCr alloys leads to further accelerate the hydrogen sorption kinetics [53]. Consequently, these new composite alloys exhibit a larger reversible storage capacity under a given H 2 pressure.…”

Section: Hydrogen Diffusion In Tievecr Alloysmentioning

confidence: 99%

Hydrogen diffusion in metal-hydrogen systems via NMR and DFT

Shelyapina

Vyvodtceva

Klyukin

et al. 2015

International Journal of Hydrogen Energy

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“…Different approaches have been taken to overcome this drawback. These include heat treatment [12], addition of Zr 7 Ni 10 [12][13][14][15][16], or Zr [17,18] and by element substitution [19,20]. Another approach was made by Edalati K. et al [21] who used high-pressure torsion to induce microstructural modification and so enhancing hydrogen storage properties of Ti-V BCC alloys.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Hydrogen Storage Properties of Ti1V0.9Cr1.1 Alloy with Addition of x wt % Zr (x = 0, 2, 4, 8, and 12)

Sleiman

Huot

2017

Inorganics

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Abstract:The effect of adding Zr on microstructure and hydrogen storage properties of BCC Ti 1 V 0.9 Cr 1.1 synthesized by arc melting was studied. The microstructures of samples with Zr were multiphase with a main BCC phase and secondary Laves phases C15 and C14. The abundance of secondary phases increased with increasing amount of zirconium. We found that addition of Zr greatly enhanced the first hydrogenation kinetics. The addition of 4 wt % of Zr produced fast kinetics and high hydrogen storage capacity. Addition of higher amount of Zr had for effect of decreasing the hydrogen capacity. The reduction in hydrogen capacity might be due to the increased secondary phase abundance. The effect of air exposure was also studied. It was found that, for the sample with 12 wt % of Zr, exposure to the air resulted in appearance of an incubation time in the first hydrogenation and a slight reduction of hydrogen capacity.

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Hydrogen sorption properties of compounds based on BCC Ti1−xV1−yCr1+x+y alloys

Cited by 55 publications

References 14 publications

Replacement of Vanadium by Ferrovanadium in a Ti-Based Body Centred Cubic (BCC) Alloy: Towards a Low-Cost Hydrogen Storage Material

Replacement of Vanadium by Ferrovanadium in a Ti-Based Body Centred Cubic (BCC) Alloy: Towards a Low-Cost Hydrogen Storage Material

Hydrogen diffusion in metal-hydrogen systems via NMR and DFT

Microstructure and Hydrogen Storage Properties of Ti1V0.9Cr1.1 Alloy with Addition of x wt % Zr (x = 0, 2, 4, 8, and 12)

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