Light-weight solid-state hydrogen storage materials characterized by neutron scattering

Remarkable catalysis of spinel ferrite XFe2O4 (X = Ni, Co, Mn, Cu, Zn) nanoparticles on the dehydrogenation properties of LiAlH4: An experimental and theoretical study

An overview of reactive hydride composite (RHC) for solid-state hydrogen storage materials

Magnesium-based transition-metal hydrides are attractive hydrogen energy materials because of their relatively high gravimetric and volumetric hydrogen storage capacities combined with low material costs. However, most of them are too stable to release the hydrogen under moderate conditions. Here we synthesize the hydride of Mg2FexSi1-x, which consists of Mg2FeH6 and Mg2Si with the same cubic structure. For silicon-rich hydrides (x < 0.5), mostly the Mg2Si phase is observed by X-ray diffraction, and Mössbauer spectroscopy indicates the formation of an octahedral FeH6 unit. Transmission electron microscopy measurements indicate that Mg2FeH6 domains are nanometer-sized and embedded in a Mg2Si matrix. This synthesized metallographic structure leads to distortion of the Mg2FeH6 lattice, resulting in thermal destabilization. Our results indicate that nanometer-sized magnesium-based transition-metal hydrides can be formed into a matrix-forced organization induced by the hydrogenation of nonequilibrium Mg-Fe-Si composites. In this way, the thermodynamics of hydrogen absorption and desorption can be tuned, which allows for the development of lightweight and inexpensive hydrogen storage materials.

Application of machine learning to thermal management of solid-state hydrogen storage: A comprehensive review

Unraveling the Potential of Solid-State Hydrogen Storage Materials: Insights from First Principle Calculations

Interface effects in NaAlH4–carbon nanocomposites for hydrogen storage

Advanced reactor concept for complex hydrides: Hydrogen desorption at fuel cell relevant boundary conditions

Superior de/hydriding kinetics and cycling stability of Mg-CeAl3@CeH2 nanocomposites

Effect of adding different percentages of HfCl4 on the hydrogen storage properties of MgH2

Ultrafast hydrogenation of magnesium enabled by tetragonal ZrO2 hierarchical nanoparticles

We describe the successful synthesis of the first mixed-cation (pseudoternary) amidoborane, Na[Li(NH(2)BH(3))(2)], with theoretical hydrogen capacity of 11.1 wt%. Na[Li(NH(2)BH(3))(2)] crystallizes triclinic (P1) with a = 5.0197(4) Å, b = 7.1203(7) Å, c = 8.9198(9) Å, α = 103.003(6)°, β = 102.200(5)°, γ = 103.575(5)°, and V = 289.98(5) Å(3) (Z = 2), as additionally confirmed by Density Functional Theory calculations. Its crystal structure is topologically different from those of its orthorhombic LiNH(2)BH(3) and NaNH(2)BH(3) constituents, with distinctly different coordination spheres of Li (3 N atoms and 1 hydride anion) and Na (6 hydride anions). Na[Li(NH(2)BH(3))(2)], which may be viewed as a product of a Lewis acid (LiNH(2)BH(3))/Lewis base (NaNH(2)BH(3)) reaction, is an important candidate for a novel lightweight hydrogen storage material. The title material decomposes at low temperature (with onset at 75 °C, 6.0% mass loss up to 110 °C, and an additional 3.0% up to 200 °C) while evolving hydrogen contaminated with ammonia.

Boosting the hydrogen storage performance of MgH2 by Vanadium based complex oxides

Enhancing hydrogen storage performance of MgH2 through the addition of BaMnO3 synthesized via solid-state method

Cu₂ZnSnS₄ (CZTS), well-known for its use in photovoltaic and photocatalytic systems, has been studied as a solid-state hydrogen storage material. At 10 bar hydrogen pressure, structural and spectroscopic analysis revealed unambiguous lattice changes in the form of enhanced lattice parameters (a = 5.41 Å, c = 10.754 Å), a reduction in crystallite size from 66.37 nm to 56.70 nm. Raman and FTIR spectra confirmed hydrogen incorporation through vibrational mode changes and S–H stretching band emergence. A-mode near 336 cm⁻¹, including intensity changes and slight shifts, reflecting hydrogen-induced strain and defect interactions within the lattice. Through the emergence of an S–H stretching band around 2369 cm⁻¹, which was absent in the pristine sample. The material was observed with a high specific surface area, enhancing the adsorption kinetics for hydrogen. Storage capacity was 0.9 wt%, and the rate of desorption was 0.0108 m³/h at 200 °C. TGA demonstrated enhanced mass loss behavior in hydrogenated samples, suggesting modified thermal stability after hydrogen treatment. Gas chromatography analysis confirmed clean and selective hydrogen release. These findings make CZTS a low-cost and structurally versatile material with a promising reversible hydrogen storage solution in energy conversion applications.

Magnesium-based hydrogen storage alloys have attracted significant attention as promising materials for solid-state hydrogen storage due to their high hydrogen storage capacity, abundant reserves, low cost, and reversibility. However, the widespread application of these alloys is hindered by several challenges, including slow hydrogen absorption/desorption kinetics, high thermodynamic stability of magnesium hydride, and limited cycle life. This comprehensive review provides an in-depth overview of the recent advances in magnesium-based hydrogen storage alloys, covering their fundamental properties, synthesis methods, modification strategies, hydrogen storage performance, and potential applications. The review discusses the thermodynamic and kinetic properties of magnesium-based alloys, as well as the effects of alloying, nanostructuring, and surface modification on their hydrogen storage performance. The hydrogen absorption/desorption properties of different magnesium-based alloy systems are compared, and the influence of various modification strategies on these properties is examined. The review also explores the potential applications of magnesium-based hydrogen storage alloys, including mobile and stationary hydrogen storage, rechargeable batteries, and thermal energy storage. Finally, the current challenges and future research directions in this field are discussed, highlighting the need for fundamental understanding of hydrogen storage mechanisms, development of novel alloy compositions, optimization of modification strategies, integration of magnesium-based alloys into hydrogen storage systems, and collaboration between academia and industry.