Jan 26, 2024 · Metal hydrides are good candidates for hydrogen storage in a large range of practical applications. A lot of research activities are currently taking place, focusing on finding new metal hydrides that will meet the needs of industry and also how the present metal hydrides could be modified to improve their present characteristics.

This study examines the thermal characteristics of metal hydride systems comprised of MgH2 and LaNi5, paired with LiNO3·3H2O and NaNo3 as a phase change material, through both analytical and computational approaches. Analytical methods were utilized to identify the most suitable volume and mass proportions of metal hydrides to PCM, whereas simulations calculated …

Mar 6, 2025 · Metal hydride-based hydrogen storage (MHHS) has been used for several purposes, including mobile and stationary applications. In general, the overall MHHS performance for both applications depends on three main factors, which are the appropriate selection of metal hydride material uses, design configurations of the MHHS based on the heat exchanger, and …

Dec 3, 2024 · The reaction for the storage (hydride formation) and release (hydride dissociation) of hydrogen in a metal hydride is known to produce or consume heat, respectively. The heat involved in these reactions can range from less than 10 kJ · ( mol H 2 ) − 1 to over 200 kJ · ( mol H 2 ) − 1 , depending on the chemical nature and composition of ...

Dec 11, 2023 · Metallic hydrides have proven useful for the development of metal hydride–hydrogen compressors [15,30,60]. This is successfully demonstrated by X. Zhang et al. (contribution 9) where the rare earth series AB 5 and Ti/Zr-based AB 2 hydrogen storage materials are investigated.

Sep 26, 2022 · The successful and fast start-up of proton exchange membrane fuel cells (PEMFCs) at subfreezing temperatures (cold start) is very important for the use of PEMFCs as energy sources for automotive applications. The effective thermal management of PEMFCs is of major importance. When hydrogen is stored in hydride-forming intermetallics, significant …

Dec 28, 2022 · Hydrogen is one of the energy carriers that has started to play a significant role in the clean energy transition. In the hydrogen ecosystem, storing hydrogen safely and with high volumetric density plays a key role. In this regard, metal hydride storage seems to be superior to compressed gas storage, which is the most common method used today. However, thermal …

Hydride-forming alloys are currently considered reliable and suitable hydrogen storage materials because of their relatively high volumetric densities, and reversible H2 absorption/desorption kinetics, with high storage capacity. Nonetheless, their practical use is obstructed by several factors, including deterioration and slow hydrogen absorption/desorption kinetics resulting from …

May 14, 2020 · Independent of the actual power train, efficiency and a high driving range in any weather conditions are two key requirements for future vehicles. Especially during summertime, thermally driven air conditioning systems can contribute to this goal as they can turn the exhaust heat of internal combustion engines, fuel cells or of any additional fuel-based heating system …

Apr 24, 2023 · Metal alloys and intermetallic compounds offer an attractive method for safely storing hydrogen (H2). The metal alloys absorb H2 into their structure, often swelling and fracturing as a result of phase transformation during hydride formation/decomposition cycles. The absorption of H2 is an exothermic process, requiring the effective and efficient removal of …