Intermetallic Compounds for Hydrogen Storage: Current Status and Future Perspectives

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 6, 2024

Abstract Intermetallic compounds are an emerging class of materials with intriguing hydrogen activation and storage capabilities garnering attention for their application in low‐temperature metal hydride batteries. However, none the existing intermetallic have met gravimetric capacity target 5.5 wt.%. Some A 2 B‐type compounds, like Mg Ni, Co, Fe, approach this but require high temperatures desorption limiting use automotive applications. Conversely, some ZrV LaNi 5 , exhibit at ambient conditions comparatively lower capacities. This review article provides a comprehensive account different types synthesis using solidification‐based solid‐state diffusion‐based approaches, metallurgical structural properties. It examines complex interdependencies between parameters performance. definitive non‐linear correlation is identified void volume capacities while lattice structure, evolution structure absorption, enthalpy formation, reactivities as critical governing

Language: Английский

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Study on catalytic mechanism of Yb2O3 on RE-Mg based hydrogen storage alloys

Journal of Alloys and Compounds, Journal Year: 2023, Volume and Issue: 971, P. 172777 - 172777

Published: Nov. 7, 2023

Language: Английский

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Properties of Ti-Based Hydrogen Storage Alloy

Journal of Power and Energy Engineering, Journal Year: 2024, Volume and Issue: 12(03), P. 99 - 114

Published: Jan. 1, 2024

An efficient and safe hydrogen storage method is one of the important links for large-scale development in future. Because its low price simple design, Ti-based alloys are considered to be suitable practical applications. In this paper, we review latest research on alloys. Firstly, machine learning density functional theory introduced provide theoretical guidance optimization Then, order improve performance, briefly introduce AB type AB2 alloys, focusing doping elements adaptive after treatment. Finally, suggestions future proposed.

Language: Английский

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Anti-oxidation Effect of Chromium Addition for TiFe Hydrogen Storage Alloys

Journal of Alloys and Compounds, Journal Year: 2024, Volume and Issue: unknown, P. 176634 - 176634

Published: Sept. 1, 2024

Language: Английский

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Hydrogen Storage Materials: Promising Materials for Kazakhstan’s Hydrogen Storage Industry

Eurasian Chemico-Technological Journal, Journal Year: 2024, Volume and Issue: 26(3), P. 113 - 132

Published: Oct. 22, 2024

Hydrogen, widely recognized as an efficient and clean energy carrier, holds significant promise for transforming future systems. Despite advances in hydrogen production cost reduction, challenges storage continue to impede its widespread adoption. Traditional methods, such high-pressure tanks liquid hydrogen, have limitations related high resource costs. Solid-state materials offer a safer more reliable alternative under various operating conditions. This review article provides in-depth analysis of materials, focusing on metal hydrides, complex carbon-based with particular attention their thermodynamic, structural, kinetic properties. Additionally, the explores potential application certain Kazakhstan's market, highlighting country's rich mineral resources existing industrial infrastructure. By leveraging these resources, Kazakhstan can play crucial role advancing technologies contributing global decarbonization efforts. The aims comprehensive insights into current state prospects solid-state emphasizing relevance impact sector.

Language: Английский

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A review of body-centered cubic-structured alloys for hydrogen storage: composition, structure, and properties

Rare Metals, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 2, 2024

Language: Английский

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Production of TiFe Hydrogen-Storage Material by Direct Reduction of Ilmenite Mineral Sand

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: 8(3), P. 1580 - 1588

Published: Jan. 29, 2025

The transition to a hydrogen-based economy necessitates the development of safe, cost-effective hydrogen storage media at an industrial scale. equiatomic intermetallic titanium–iron (TiFe) alloy is prime candidate for stationary applications due its high volumetric density, nontoxicity, and safety attributes. However, conventional synthesis TiFe relies on purity titanium iron metal feedstocks, which must first be extracted from their respective ores before being alloyed in ratio. This complex, multistep process posing environmental economic challenges associated with extraction metallurgical-grade titanium. Here, we propose alternate straightforward pathway through direct calciothermic reduction ilmenite sand (FeTiO3). Initial small-scale experiments have achieved maximum yield approximately 52 wt %, similar yields observed when scaling up 100 g samples. produced via this demonstrated capacity 0.71 % after activation 65 bar, indicating that metallothermic represents attractive alternative production route alloys, offers sustainability advantages over existing pathway.

Language: Английский

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Effect on the activation and hydrogen storage properties of Y–TiFe-based composites with vanadium via mechanical milling

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 106, P. 686 - 699

Published: Feb. 5, 2025

Language: Английский

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Tuning TiFe_1–xNi_x Hydride Thermodynamics through Compositional Tailoring

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: 8(4), P. 2135 - 2144

Published: Feb. 6, 2025

In this study, we investigate how structural modifications induced by Fe substitution with Ni in the TiFe intermetallic alloy affect thermodynamics of hydride formation and decomposition. The primary goal substituting was to reduce plateau pressure TiFe, a crucial parameter for reversible solid-state hydrogen storage applications under near-ambient conditions (below 150 °C 50 bar). Alloy compositions TiFe1–xNix x ≤ 0.30 were synthesized arc melting. morphological properties characterized using powder X-ray diffraction scanning electron microscopy energy-dispersive spectroscopy. thermodynamic investigated through volumetric measurements Sieverts' apparatus calorimetric analysis high-pressure differential calorimeter. We show that incorporation effectively lowers pressure, stabilizing due more negative enthalpy formation. Moreover, entropy increases content, resulting linear correlation between values determined at different compositions. enthalpy–entropy compensation effect analyzed determine whether it arises from statistical artifacts or is genuine system, as our findings suggest.

Language: Английский

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The Effect of Annealing on the First Hydrogenation Behavior of Atomized Ti48.8Fe46.0Mn5.2 Alloy

Metals, Journal Year: 2025, Volume and Issue: 15(3), P. 251 - 251

Published: Feb. 26, 2025

In this paper, we report the effect of annealing on first hydrogenation behavior Ti48.8Fe46.0Mn5.2 alloy. This alloy was produced by gas atomization, and a portion powder subjected to vacuum at 1120 °C for 1 h. The goal investigate usefulness atomized hydrogen storage also annealing. Scanning electron microscopy (SEM) images revealed that both annealed alloys exhibit two-phase structure. consists main TiFe matrix filamentous Ti2Fe-like phase. After annealing, microstructure is globular. addition microstructure, there change in chemical composition secondary phase after room temperature samples required cold rolling. However, kinetics much slower sample compared sample. hydrogenation, XRD analysis identified phases as TiFe, TiFeH0.94, Ti2FeH3, indicating Ti2Fe participated absorption during hydrogenation.

Language: Английский

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