Magnesium-based energy materials: Progress, challenges, and perspectives

Simultaneously Enhanced Thermoelectric and Mechanical Performance in SnSe-Based Nanocomposites Produced via Sintering SnSe and KCu7S4 Nanomaterials

“…Confronting the increasing consumption of fossil fuels, it is crucial to establish a sustainable, green energy supply. Thermoelectric technology, enabling the direct conversion of heat to electricity and thus electricity generation from exhaust waste heat and solar heat, offers one of the promising solutions to the growing energy demand. , To meet the requirements for practical applications, improving the conversion efficiency of devices is central to thermoelectric research. Such efficiency depends heavily on the dimensionless figure of merit of constituent materials that is temperature ( T ) dependent, zT = S 2 σ T /κ, where the Seebeck coefficient, electrical conductivity, and thermal conductivity are the key transport properties and represented by S , σ, and κ, respectively. − Of note, the thermal conductivity is composed of electronic and lattice thermal conductivity, and the latter is a relatively independent property to optimize.…”

CNTs-Pd as Efficient Bidirectional Catalyst for Improving Hydrogen Absorption/Desorption Kinetics of Mg/MgH2

“…Currently, a variety of hydrogen storage materials are being continuously discovered and researched. − Metal or metal intermetallic compounds with high atomic mass are considered typical hydrogen storage materials. ,− In recent years, magnesium hydride (MgH 2 ) has garnered increased attention due to its high hydrogen capacity (7.6 wt %), surpassing the final target established by the US Department of Energy for onboard hydrogen storage systems (6.5 wt %), as well as its excellent reversibility, natural abundance (ranking as the eighth most abundant element in the Earth’s crust), low cost (priced at $3 per kilogram for magnesium), and environmental compatibility, making it as one of the most promising hydrogen storage materials. ,− Nonetheless, MgH 2 continues to face challenges with its high thermal stability (Δ H = 76 kJ/mol) and sluggish dehydrogenation kinetics, which impede its practical application. , To address these limitations, significant efforts have been undertaken, proposing and exploring various effective approaches, including nanomaterials, nanoconfinement, and catalyst doping. ,,− …”

“…Furthermore, the adsorption/desorption performance of H 2 in Mg/MgH 2 can be improved by incorporating nanocatalyst on carbon nanotube-confined materials in situ. This synergistic approach of catalyst doping and nanoconfinement has significantly improved the de/hydriding properties of Mg/MgH 2 . − , …”

“…This synergistic approach of catalyst doping and nanoconfinement has significantly improved the de/hydriding properties of Mg/MgH 2 . [25][26][27][28]30 Illustrated by the above reports, CNTs-Pd was synthesized via a chemical precipitation method with Mg subsequently loaded onto CNTs-Pd to form Mg@CNTs-Pd. The corresponding hydrogen absorption/desorption kinetics and reversibility were also investigated.…”

Effect of Zinc and Severe Plastic Deformation on Mechanical Properties of AZ61 Magnesium Alloy

“…In the aerospace, automotive, and green energy industries, the concept of employing large structural components has gained widespread acceptance due to their immense potential in enhancing operational efficiency, reducing carbon dioxide emissions, and achieving light-weighting. The pursuit of these characteristics has driven extensive research and development efforts [1][2][3][4]. Magnesium alloys, being the lightest structural metals, are considered a powerful choice for achieving industrial light-weighting.…”