Gas-phase applications of metal hydrides

Lototskyy, Mykhaylo; Тарасов, Б. П.; Yartys, V.A.

doi:10.1016/j.est.2023.108165

Cited by 15 publications

(2 citation statements)

References 300 publications

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“…Metal hydrides (MHs) able to reversibly and selectively interact with hydrogen both from a gas and an electrolyte are characterised by unique properties, including extremely high-volume density of H atoms accommodated in the metal matrix, reversibility and fast kinetics of hydrogenation/dehydrogenation, selectivity of hydrogen uptake, significant changes of physical properties of the host metal (alloy) in the course of its hydrogenation, catalytic activity in hydrogen transfer reactions. The MH technologies utilising these features can provide very efficient solutions, particularly in energy storage and conversion technologies [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Effect of preparation routes on the performance of a multi-component AB₂-type hydrogen storage alloy

Davids,

Martin,

Fursikov

et al. 2024

J. Phys. Energy

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This article presents experimental results on the preparation and characterisation of a multi-component AB2–type intermetallic hydrogen storage alloy (A = Ti0.85Zr0.15, B = Mn1.22Ni0.22Cr0.2V0.3Fe0.06). The alloy samples were prepared by induction melting using Y2O3-lined alumo-silica and graphite crucibles. The characterisation results were compared with the ones for the reference sample of the same composition prepared by arc melting. It has been shown that the induction-melted samples exhibit reduced hydrogen sorption capacities and sloping plateaux on the pressure composition isotherms (PCI’s). The origin of the observed effects has been shown to be in the inhomogeneity of the induction-melted alloys and their contamination due to crucible—melt interaction, particularly pronounced for the alloy melted in the alumo-silica crucible; this alloy was additionally characterised by the decrease of Zr/Ti ratio and, in turn, higher plateau pressures of the PCI’s.

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Section: Introductionmentioning

confidence: 99%

Effect of preparation routes on the performance of a multi-component AB₂-type hydrogen storage alloy

Davids,

Martin,

Fursikov

et al. 2024

J. Phys. Energy

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show abstract

“…Thus, the solid-state storage technique has attracted increasing attention; it possesses the extra advantages of being lightweight, high-capacity, reliable, easy to operate and cost-effective compared to other techniques [10,11]. It is worth pointing out that metal hydrides are widely researched and developed because they show high hydrogen-storage densities, excellent sorption reversibility and fast kinetic performance [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Enhanced Hydrogen-Storage Properties of MgH2 Catalyzed via a Cerium Doped TiCrV BCC Alloy

Xiao,

Zhang,

et al. 2024

Metals

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In this work, Ce-doped Ti6Cr14V80 BCC hydrogen-storage alloys have been synthesized as catalysts to enhance the hydrogen-storage performance of MgH2 based on its room-temperature activation features and excellent durability. The Ti6Cr14V80Ce1 alloy was pre-ball milled under a hydrogen atmosphere into a Ti6Cr14V80Ce1Hx hydride. Different amounts of the Ti6Cr14V80Ce1Hx hydride were incorporated into MgH2 by ball milling to obtain the MgH2 + y wt%Ti6Cr14V80Ce1Hx (y = 0, 3, 5, 10, 15) nano-composites. With an optimization doping of 10 wt%Ti6Cr14V80Ce1Hx, the initial dehydrogenated temperature was decreased to 160 °C. Moreover, the composite can rapidly release 6.73 wt% H2 within 8 min at 230 °C. Also, it can absorb 2.0 wt% H2 within 1 h even at room temperature and uptake 4.86 wt% H2 within 10 s at 125 °C. In addition, the apparent dehydrogenated activation energy of the MgH2 + 10 wt%Ti6Cr14V80Ce1Hx composite was calculated to be 62.62 kJ mol−1 fitted by the JMAK model. The capacity retention was kept as 84% after 100 cycles at 300 °C. The ball milled Ti6Cr14V80Ce1Hx transformed from the initial FCC phase structure into a BCC phase after complete dehydrogenation and back into an FCC phase when fullly hydrogenated. A catalyst mechanism analysis revealed that the ‘autocatalytic effect’ originating in Ti6Cr14V80Ce1Hx plays a crucial role in boosting the de-/hydrogenation properties of MgH2. This work provides meaningful insights into rational designs of nano-compositing with different hydrogen-storage alloy catalyzed MgH2.

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Advancements in sorption-based materials for hydrogen storage and utilization: A comprehensive review

Qureshi,

Yusuf,

Ahmed

et al. 2024

Energy

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Gas-phase applications of metal hydrides

Cited by 15 publications

References 300 publications

Effect of preparation routes on the performance of a multi-component AB₂-type hydrogen storage alloy

Effect of preparation routes on the performance of a multi-component AB₂-type hydrogen storage alloy

Enhanced Hydrogen-Storage Properties of MgH2 Catalyzed via a Cerium Doped TiCrV BCC Alloy

Advancements in sorption-based materials for hydrogen storage and utilization: A comprehensive review

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Gas-phase applications of metal hydrides

Cited by 15 publications

References 300 publications

Effect of preparation routes on the performance of a multi-component AB2-type hydrogen storage alloy

Effect of preparation routes on the performance of a multi-component AB2-type hydrogen storage alloy

Enhanced Hydrogen-Storage Properties of MgH2 Catalyzed via a Cerium Doped TiCrV BCC Alloy

Advancements in sorption-based materials for hydrogen storage and utilization: A comprehensive review

Contact Info

Product

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Effect of preparation routes on the performance of a multi-component AB₂-type hydrogen storage alloy

Effect of preparation routes on the performance of a multi-component AB₂-type hydrogen storage alloy