Development and experimental validation of kinetic models for the hydrogenation/dehydrogenation of Mg/Al based metal waste for energy storage

Passing, M.; Pistidda, Claudio; Capurso, Giovanni; Jepsen, Julian; Metz, Oliver; Dornheim, Martin; Klassen, Thomas

doi:10.1016/j.jma.2021.12.005

Cited by 18 publications

(4 citation statements)

References 58 publications

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“…A value of n between 3 and 2.5 indicates the 2D growth of MgH 2 during ball milling. On the other hand, when n ranges from 4 to 3, the hydrogenation kinetics of MgH 2 is controlled by three-dimensional random growth due to irregular diffusion and bonding between crystalline structures and atoms. , Thus, it can be deduced that the hydrogenation of Mg@CNTs-Pd is three-dimensional with the dimensionality decreasing as the milling intensity increases.…”

Section: Results and Discussionmentioning

confidence: 99%

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

Duan,

Wu,

Liang

et al. 2024

Energy Fuels

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The hydrogen storage potential and cost-effectiveness of MgH 2 have rendered it a desirable material for hydrogen storage. However, its application has been hindered by limitations in thermal stability and dehydrogenation kinetics. In this study, the carbon nanotube-Pd bifunctional catalyst was prepared by using hydrothermal and calcination technology, significantly improving the kinetics of Mg/MgH 2 during hydrogen adsorption/desorption. The activation energy for the Mg@ CNTs-Pd was reduced to 42.73 kJ/mol, as determined by fitting the Avrami−Erofeev model with the Arrhenius equation. Additionally, the activation energy during dehydrogenation was found to be 73.98 kJ/mol based on the Johnson−Mehl−Avrami−Kolmogorov equation and the Arrhenius equation. It is worth noting that the dynamic enhancement persists even after 10 cycles. This groundbreaking research has paved the way for potential applications of MgH 2 as a hydrogen storage material, providing it with broader development opportunities.

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Section: Results and Discussionmentioning

confidence: 99%

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

Duan,

Wu,

Liang

et al. 2024

Energy Fuels

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“…Not only that, many metallic elements were found to form different types of alloys with Mg. Recent studies have shown that metals such as Al [ 41 ], Ce [ 42 ], Pr [ 43 ] and Gd [ 44 ] could also be alloyed with Mg and the resulting alloys possessed good hydrogen storage performance.…”

Section: Improvement Of Hydrogen Storage Performance Of Mg/mgh ...mentioning

confidence: 99%

“…Passing et al [ 41 ] found that Mg-Al alloys possessed good thermodynamic/kinetic performance and at the same time, the alloy could store about 5.8 wt.% of hydrogen. However, Mg 90 Ce 3 Ni 7 alloy [ 42 ], Pr-Mg-Ni-based alloy [ 43 ] and Gd 5 Mg 95-x Ni x type alloy [ 44 ] did not exhibit good hydrogen storage capacity.…”

Section: Improvement Of Hydrogen Storage Performance Of Mg/mgh ...mentioning

confidence: 99%

Hydrogen Storage Performance of Mg/MgH2 and Its Improvement Measures: Research Progress and Trends

Yang

Zhang

et al. 2023

Materials

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Due to its high hydrogen storage efficiency and safety, Mg/MgH2 stands out from many solid hydrogen storage materials and is considered as one of the most promising solid hydrogen storage materials. However, thermodynamic/kinetic deficiencies of the performance of Mg/MgH2 limit its practical applications for which a series of improvements have been carried out by scholars. This paper summarizes, analyzes and organizes the current research status of the hydrogen storage performance of Mg/MgH2 and its improvement measures, discusses in detail the hot studies on improving the hydrogen storage performance of Mg/MgH2 (improvement measures, such as alloying treatment, nano-treatment and catalyst doping), and focuses on the discussion and in-depth analysis of the catalytic effects and mechanisms of various metal-based catalysts on the kinetic and cyclic performance of Mg/MgH2. Finally, the challenges and opportunities faced by Mg/MgH2 are discussed, and strategies to improve its hydrogen storage performance are proposed to provide ideas and help for the next research in Mg/MgH2 and the whole field of hydrogen storage.

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“…Magnesium hydride is considered a suitable material for hydrogen storage applications, due to a hydrogen content of 7.6 wt.% associated with hydrogenation/dehydrogenation reaction enthalpy of about 74 kJ/molH 2 , and to a high degree of reversibility. The adsorption and desorption of hydrogen in the magnesium hydrogen tank should take place in an environment with a temperature higher than 250 • C. High strain will lead to reactive hydrogen leakage from the magnesium hydrogen tank due to tank rupture [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Real-Time Micro-Monitoring of Surface Temperature and Strain of Magnesium Hydrogen Tank through Self-Made Two-In-One Flexible High-Temperature Micro-Sensor

Lee¹,

Shen²,

Chiu³

et al. 2022

Micromachines

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The adsorption and desorption of hydrogen in the magnesium powder hydrogen tank should take place in an environment with a temperature higher than 250 °C. High temperature and high strain will lead to reactive hydrogen leakage from the magnesium hydrogen tank due to tank rupture. Therefore, it is very important to monitor in real time the volume expansion, temperature change, and strain change on the surface of the magnesium hydrogen tank. In this study, the micro-electro-mechanical systems (MEMS) technology was used to innovatively integrate the micro-temperature sensor and the micro-strain sensor into a two-in-one flexible high-temperature micro-sensor with a small size and high sensitivity. It can be placed on the surface of the magnesium hydrogen tank for real-time micro-monitoring of the effect of hydrogen pressure and powder hydrogen absorption expansion on the strain of the hydrogen storage tank.

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Development and experimental validation of kinetic models for the hydrogenation/dehydrogenation of Mg/Al based metal waste for energy storage

Cited by 18 publications

References 58 publications

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

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

Hydrogen Storage Performance of Mg/MgH2 and Its Improvement Measures: Research Progress and Trends

Real-Time Micro-Monitoring of Surface Temperature and Strain of Magnesium Hydrogen Tank through Self-Made Two-In-One Flexible High-Temperature Micro-Sensor

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Development and experimental validation of kinetic models for the hydrogenation/dehydrogenation of Mg/Al based metal waste for energy storage

Cited by 18 publications

References 58 publications

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

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

Hydrogen Storage Performance of Mg/MgH2 and Its Improvement Measures: Research Progress and Trends

Real-Time Micro-Monitoring of Surface Temperature and Strain of Magnesium Hydrogen Tank through Self-Made Two-In-One Flexible High-Temperature Micro-Sensor

Contact Info

Product

Resources

About

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

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