Improved hydrogen storage properties of TiFe alloy by doping (Zr+2V) additive and using mechanical deformation

Lv, Peng; Liu, Zhichen; Dixit, Viney

doi:10.1016/j.ijhydene.2019.08.249

Cited by 25 publications

(4 citation statements)

References 73 publications

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“…It was clear that the adjustment was better on desorption than adsorption, but the reason for that was not clear at this time. In other reports on TiFe IMC alloys, R 2 values ranged from 0.946 58 to 0.996 59 . Therefore, the adjustment from this study can be considered good.…”

Section: Kinetics Modelling Of the Hydrogenation Of Tife Imc Without Polymer Coveringmentioning

confidence: 71%

“…It has been previously observed 4 that the absorption kinetics of ball-milled TiFe IMC is also best fitted by the Jander model. In other investigations conducted on TiFe IMC with additives 58,59 , the GB-3D model was best fitted to the data. However, the Jander model was not considered by those authors.…”

Section: Kinetics Modelling Of the Hydrogenation Of Tife Imc Without Polymer Coveringmentioning

confidence: 99%

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Hydrogen Absorption/Desorption Behavior of a Cold-Rolled TiFe Intermetallic Compound

et al. 2021

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The (de)hydrogenation properties of a TiFe intermetallic compound (IMC) alloy activated by cold rolling inside a glovebox at ambient temperature were investigated by kinetic measurements, x-ray powder diffraction (XRD), and transmission electron microscopy (TEM). Rate-limiting steps were identified by testing kinetic models on hydrogen absorption and desorption curves. To prevent surface poisoning during air exposure, the TiFe IMC was also cold rolled with polytetrafluoroethylene (PTFE) and ultra-high molecular weight polyethylene (UHMWPE). The addition of either PTFE or UHMWPE to nanostructured TiFe by cold rolling did not produce a polymer-metal composite with O 2 poisoning resistance, regardless of the polymer-mixing way adopted. This occurred because large surfaces of the particles were not adequately coated with polymer. The results identify challenges to the TiFe IMC polymer-covered material that must be overcome before a methodology can significantly contribute to the formation of nanostructured TiFe-polymer composites with enhanced hydrogen storage properties. The diffusion-controlled reactions in the cold-rolled TiFe IMC without polymer were prevalent in all cases, as predicted by the Jander three-dimensional diffusion model. The main contribution of this work regards estimation of the amount of hydrogen released, which was 0.60% after 6 min and reproducible for the three subsequent cycles.

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Section: Kinetics Modelling Of the Hydrogenation Of Tife Imc Without Polymer Coveringmentioning

confidence: 71%

Section: Kinetics Modelling Of the Hydrogenation Of Tife Imc Without Polymer Coveringmentioning

confidence: 99%

Hydrogen Absorption/Desorption Behavior of a Cold-Rolled TiFe Intermetallic Compound

et al. 2021

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“…But if we compared the details of the two desorption cycles, it was clear from the first to seventh cycle, the initial kinetic rose with growing cycles but the maximum hydrogen desorption capacity decreased a little. The loss of capacity between the first and seventh absorption was very small, which may be explained by the nature of the apparatus during the measurement process [45]. More cycles for the alloy sample x = 0.6 need to be measured in the future.…”

Section: Cycle Propertiesmentioning

confidence: 99%

Study on Hydrogen Storage Properties, Anti-Oxide Ability and Rate Limiting Step of ZrCr-Based Alloy after Introducing Cobalt as Additive

Huang¹,

Lv²,

Zhong³

et al. 2023

Journal of Renewable Materials

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In this work, the microstructure, hydrogen storage properties, anti-oxide ability and rate limiting step of Zr(Cr 1 −x Co x ) 2 (x = 0, 0.2, 0.4 and 0.6) alloys have been investigated. After studying the crystal structure, we found that all alloy samples could show C14-type phase but the alloy sample x = 0 could also show a small amount of Cr phase. Rietveld fitting showed that lattice parameter and unit cell volume of C14-type phase decreased with increasing x. After further research, it was clear that the first hydrogen absorption capacity decreased with increasing x. But introducing more Co content had a positive influence on the effective hydrogen storage capacity and cyclic hydrogen absorption and desorption properties of the alloy sample. We also found that adding Co to ZrCr 2 alloy could improve its anti-oxide ability. In addition to this, the rate limiting step model was also studied.

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“…Recently, the possibility of other activation routes was investigated using severe plastic deformation methods. Mechanical activation of TiFe via HPT [120], groove rolling [122], forging [123] and ball milling [124] were presented. Significant improvement in the room temperature hydrogen absorption was observed after HPT processing [120,122].…”

Section: Non-magnesium-based Materialsmentioning

confidence: 99%

High-Pressure Torsion of Non-Equilibrium Hydrogen Storage Materials: A Review

Révész

Gajdics

2021

Energies

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As the most abundant element in the world, hydrogen is a promising energy carrier and has received continuously growing attention in the last couple of decades. At the very moment, hydrogen fuel is imagined as the part of a sustainable and eco-friendly energy system, the “hydrogen grand challenge”. Among the large number of storage solutions, solid-state hydrogen storage is considered to be the safest and most efficient route for on-board applications via fuel cell devices. Notwithstanding the various advantages, storing hydrogen in a lightweight and compact form still presents a barrier towards the wide-spread commercialization of hydrogen technology. In this review paper we summarize the latest findings on solid-state storage solutions of different non-equilibrium systems which have been synthesized by mechanical routes based on severe plastic deformation. Among these deformation techniques, high-pressure torsion is proved to be a proficient method due to the extremely high applied shear strain that develops in bulk nanocrystalline and amorphous materials.

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Improved hydrogen storage properties of TiFe alloy by doping (Zr+2V) additive and using mechanical deformation

Cited by 25 publications

References 73 publications

Hydrogen Absorption/Desorption Behavior of a Cold-Rolled TiFe Intermetallic Compound

Hydrogen Absorption/Desorption Behavior of a Cold-Rolled TiFe Intermetallic Compound

Study on Hydrogen Storage Properties, Anti-Oxide Ability and Rate Limiting Step of ZrCr-Based Alloy after Introducing Cobalt as Additive

High-Pressure Torsion of Non-Equilibrium Hydrogen Storage Materials: A Review

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