Review
Materials Science, Multidisciplinary
Hang Yang, Zhao Ding, Yu-Ting Li, Shao-Yuan Li, Ping-Keng Wu, Quan-Hui Hou, Yang Zheng, Biao Gao, Kai-Fu Huo, Wen-Jia Du, Leon L. Shaw
Summary: Developing safer and more efficient hydrogen storage technology is crucial for the realization of the hydrogen economy. MgH2 has been extensively studied as a promising solid-state hydrogen storage material due to its lightweight, high storage density, and abundant reserves. However, practical applications have been hindered by issues such as stable thermodynamics, sluggish kinetics, and rapid capacity decay.
Article
Chemistry, Physical
A. Cousins, F. T. Zohra, E. MacA. Gray, C. J. Webb, M. Kochanek, S. Edwards, L. Schoeman
Summary: Metal hydrides are a potential method for compressing hydrogen using waste heat. They absorb low-pressure hydrogen at low temperatures and release it at a higher pressure when the temperature is raised. Achieving higher compression ratios may require multiple stages of compression. The challenge lies in finding alloy pairs that can effectively work together to achieve the desired compression. The paper evaluates the selection of 33 hydrides for hydrogen compression, but none of the potential pairs meet the compression target. Modification of parameters or alloy properties could potentially resolve this issue. Overall, the paper highlights the importance of finding suitable alloy pairs for efficient hydrogen compression.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
E. Math. Gray
Summary: A thermodynamic model is proposed to aid in selecting compatible pairs of hydrogen storage alloys for multi-stage metal-hydride compressors. The model is based on ideal compressor concept with constraints on alloy selection due to thermodynamic characteristics, including pressure hysteresis and plateau slope. Experimentally determined effects such as curved van ?t Hoff line are considered in a case study of a two-stage compressor.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Hui Yong, Shuai Wang, Jiangwei Ma, Kewei Zhang, Dongliang Zhao, Jifan Hu, Yanghuan Zhang
Summary: The Mg-based hydrogen storage alloy with multiple platforms, prepared by ball milling Co powder and Mg-RE-Ni precursor alloy, exhibits improved hydrogen absorption and desorption kinetics. The alloy shows optimal hydrogen absorption at 200 degrees C, absorbing 5.5 wt. % H-2 within 40 s, and can desorb 5.0 wt. % H-2 within 60 min at 260 degrees C.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Terry D. Humphries, Mark Paskevicius, Ali Alamri, Craig E. Buckley
Summary: Thermal batteries are efficient for storing renewable energies, utilizing reversible thermochemical reactions to drive a heat engine. Studies on the SrH2-2Al system have shown promising properties for high efficiency operation, which could enhance technological applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Environmental
Mingxing Wei, Yijin Liu, Xiaofei Xing, Zhao Zhang, Tong Liu
Summary: By introducing a specially designed and synthesized high-entropy alloy catalyst, the hydrogen storage properties of MgH2 have been significantly improved, resulting in faster absorption and desorption rates, lower activation energy, and high capacity retention.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Shuai Wang, Hui Yong, Jiwei Yao, Jiangwei Ma, Baosheng Liu, Jifan Hu, Yanghuan Zhang
Summary: The Mg90Ce5Y5 alloy was prepared by vacuum induction melting, and Mo, MoO2, and MoO3 were added to it through mechanical ball milling. The microstructure, phase evolution, hydrogen storage thermodynamics, and kinetics were studied using XRD, SEM, TEM, PCT, and DSC methods. The results showed that the internal phases of the Mo catalyzed alloy transformed into MgH2, CeH2.73, YH3, and Mo phases upon hydrogen absorption, while the hydrogenated alloy consisted of MgH2, CeO2, YH3, MgO, and Mo phases for the MoO2 catalyzed alloy, and MgH2, MgO, CeO2, Y2O3, and Mo phases for the MoO3 catalyzed alloy. REDOX reactions occurred between MoO2, MoO3, and the inner phase of the alloy. Compared to the others, the Mo catalyzed alloy exhibited a higher hydrogen absorption saturation ratio, and the MoO2 catalyzed alloy required less time to release H2 compared to the Mo and MoO3 catalyzed alloys. The dehydrogenation activation energy (Edes) of the samples showed an increasing trend in the order of MoO2 catalyzed alloy (110.18 kJ/mol).
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
K. Malleswararao, Pramod Kumar, Pradip Dutta, S. Srinivasa Murthy
Summary: This study investigates the hydrogen storage characteristics and thermal storage performance of LaNi4.25Al0.75 alloy in the temperature range of 150°C-200°C. The alloy exhibits a hydrogen storage capacity of 1.20 wt% and can store a total thermal energy of 285.7 kJ.kg-1 and deliver heat at an average rate of 287.5 W.kg-1 with an efficiency of 64.1%.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Jiwei Yao, Hui Yong, Yang Zhao, Chengyan Sun, Xianliu Xu, Baosheng Liu, Dongliang Zhao, Jifan Hu, Yanghuan Zhang
Summary: The Mg90Ce5Y5 + x wt% ZnF2 (x = 3, 6, 10, 15) composites were prepared by mechanical ball-milling, and their effects on the hydrogen absorption and desorption properties of Mg90Ce5Y5 alloy were investigated. The addition of ZnF2 introduced MgF2 and MgZn2 phases, which acted as catalysts and improved the hydriding-dehydriding characteristics. Mg90Ce5Y5 + 6 wt% ZnF2 composites exhibited the fastest hydrogen adsorption/desorption kinetics and lower decomposition temperatures.
MATERIALS CHARACTERIZATION
(2023)
Article
Chemistry, Physical
Hui Yong, Xin Wei, Kewei Zhang, Shuai Wang, Dongliang Zhao, Jifan Hu, Yanghuan Zhang
Summary: The Mg90Y1.5Ce1.5Ni7 sample was successfully prepared by vacuum induction melting and mechanical milling, with a reversible hydrogen storage capacity of about 5.6 wt% released during hydrogenation and dehydrogenation processes. This study offers a scientific approach to promote the practical application of Mg-based alloys.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Green & Sustainable Science & Technology
Yongfeng Liu, Wenxuan Zhang, Xin Zhang, Limei Yang, Zhenguo Huang, Fang Fang, Wenping Sun, Mingxia Gao, Hongge Pan
Summary: Hydrogen storage remains a huge challenge for the development of a sustainable energy system, despite its importance. Light metal hydrides have high hydrogen densities but suffer from slow kinetics and poor reversibility due to strong bonds between metal atoms and hydrogen. Nanoscale particles offer a promising solution to tailor the properties of light metal hydrides and improve their performance. This review summarizes the preparation methods and hydrogen storage performance of nanostructured light metal hydrides, discusses the challenges, and explores future research prospects, highlighting the combination of nanostructuring and nanocatalysis for practical hydrogen carriers.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Chemistry, Physical
Jussara Barale, Erika M. Dematteis, Giovanni Capurso, Bettina Neuman, Stefano Deledda, Paola Rizzi, Fermin Cuevas, Marcello Baricco
Summary: This study focuses on the industrial production of the alloy TiFe0.85Mn0.05 as an H2 carrier in metal hydride-based hydrogen storage systems. The experimental results show that the alloy exhibits fast kinetics, good resistance to gas impurities, and storage stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Arnaud C. M. Griffond, M. Veronica Sofianos, Drew A. Sheppard, Terry D. Humphries, Anna-Lisa Sargent, Martin Dornheim, Kondo-Francois Aguey-Zinsou, Craig E. Buckley
Summary: The thermal energy storage properties of calcium hydride (CaH2) destabilized with silicon (Si) or CaxSiy compounds at various molar ratios were studied, revealing multi-step thermal decomposition reactions and identifying the most suitable compounds for concentrated solar power plants. The practical enthalpy of decomposition for Ca5Si3 was determined through pressure composition isothermal measurements, showing a discrepancy with the calculated value due to the formation of unwanted phases.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Dimitrios Apostolou
Summary: The high price of hydrogen fuel in the fuel cell vehicle refuelling market is determined by production costs and capital costs of refuelling station components. The dominant hydrogen storage technology uses high-pressure compressed tanks, but metal hydride storage shows potential for lower refuelling costs. However, storing more hydrogen in metal hydride tanks can lead to higher costs for consumers compared to compressed gas.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Sruthy Balakrishnan, Terry D. Humphries, Mark Paskevicius, Craig E. Buckley
Summary: Calcium hydride has shown potential as a hydrogen storage and thermochemical energy storage material, but its high operating temperature has limited its application and research on its hydrogen sorption thermodynamics. This study provides experimental data on the thermodynamic properties and activation energy of CaH2 in both solid and molten states, filling the gap in the thermodynamics of the Ca-H system for the first time in over 60 years.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Materials Science, Multidisciplinary
Fahim Karimi, Stefan Borries, P. Klaus Pranzas, Oliver Metz, Armin Hoell, Gokhan Gizer, Julian A. Puszkiel, Maria V. C. Riglos, Claudio Pistidda, Martin Dornheim, Thomas Klassen, Andreas Schreyer
Summary: The study investigated the LiBH2-MgH2 composite system with and without ScCl3 additive using synchrotron- and neutron-radiation-based probing methods to characterize their hydrogen storage properties. By combining neutron- and photon-based methods, the research provided insights into reaction mechanisms, interactions, material transport, and structural changes in the metal-hydrogen systems.
ADVANCED ENGINEERING MATERIALS
(2021)
Article
Chemistry, Physical
A. M. Neves, J. Puszkiel, G. Capurso, J. M. Bellosta von Colbe, C. Milanese, M. Dornheim, T. Klassen, J. Jepsen
Summary: This study develops a comprehensive gas-solid kinetic model for the Lithium-Boron Reactive Hydride Composite System, determining the limiting step of the hydrogenation reaction through thermodynamic measurements and kinetic analysis. The dependence of the reaction rate constant on pressure and temperature is calculated based on the model, providing insights for designing optimized hydrogen/energy storage vessels.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Thi-Thu Le, Claudio Pistidda, Julian Puszkiel, Maria Victoria Castro Riglos, David Michael Dreistadt, Thomas Klassen, Martin Dornheim
Summary: The addition of AlTi3 nanoparticles has been found to significantly improve the reaction rate of the Li-RHC system, particularly during the dehydrogenation process. The similar structural properties between AlTi3 and MgB2 phases provide an energetically favored path for the nucleation of MgB2, resulting in a substantial increase in reaction rate.
Article
Energy & Fuels
David Michael Dreistadt, Julian Puszkiel, Jose Maria Bellosta von Colbe, Giovanni Capurso, Gerd Steinebach, Stefanie Meilinger, Thi-Thu Le, Myriam Covarrubias Guarneros, Thomas Klassen, Julian Jepsen
Summary: In this paper, a gas-to-power (GtoP) system for power outages is digitally modeled and experimentally developed. The system consists of a solid-state hydrogen storage system and an air-cooled fuel cell, demonstrating fast, stable, and reliable responses.
Article
Chemistry, Physical
Arif Hariyadi, Suwarno Suwarno, Roman Denys, Jose Bellosta von Colbe, Tor Oskar Saetre, Volodymyr Yartys
Summary: Hydrides of the AB(2) Laves type alloys show efficient hydrogen storage capabilities and are suitable for designing high-performance hydrogen storage devices operating at ambient conditions. Experimental results indicate that the hydrogen absorption and desorption processes are jointly influenced by hydrogen diffusion and grain boundary nucleation, with increasing hydrogen content in the hydride leading to lower activation energies.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Clarissa Abetz, Prokopios Georgopanos, Claudio Pistidda, Thomas Klassen, Volker Abetz
Summary: Hydrogen is crucial for the transition to a sustainable future without CO2 emissions. It can be produced from renewable energy sources like solar and wind power and used to buffer energy fluctuations in all sectors. Safe and efficient storage options, such as metal hydride materials, are essential for hydrogen technology implementation.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Physical
Carmen Tenholt, Daniel Hoeche, Mauricio Schieda, Thomas Klassen
Summary: Most research on photo-electrochemical (PEC) cells for water splitting has been based on simulations and experiments on laboratory scales. This study investigates the effects of stepwise upscaling of PEC cells and develops a computer-aided reference model to predict their behavior on different scales. Machine learning via Bayesian optimization is employed to optimize the simulation model input parameters, resulting in good agreement with measured current-voltage curves.
SUSTAINABLE ENERGY & FUELS
(2022)
Article
Materials Science, Multidisciplinary
Goekhan Gizer, Fahim Karimi, Claudio Pistidda, Hujun Cao, Julian A. Puszkiel, Yuanyuan Shang, Eike Gericke, Armin Hoell, P. Klaus Pranzas, Thomas Klassen, Martin Dornheim
Summary: This study investigates the effect of particle size changes of additives on the hydrogen storage kinetics in amide-hydride hydrogen storage systems using advanced synchrotron-based techniques. The results show that adding potassium stabilizes the hydrogen storage capacity but reduces it after multiple cycles. The study also demonstrates that particle size growth deteriorates the reaction kinetics, but selecting lower absorption temperatures can mitigate this deterioration and result in a two times faster reaction kinetics.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Yuanyuan Shang, Ou Jin, Julian Atillio Puszkiel, Fahim Karimi, Palmarin Dansirima, Chongsutthamani Sittiwet, Rapee Utke, Siriwat Soontaranon, Thi Thu Le, Gokhan Gizer, Dorothee Vinga Szabo, Stefan Wagner, Christian Kuebel, Thomas Klassen, Martin Dornheim, Astrid Pundt, Claudio Pistidda
Summary: This study systematically investigates the effect of selected metal-based additives on the dehydrogenation properties of the reactive hydride composite (RHC) model system 2NaBH4+MgH2. The addition of 3TiCl3·AlCl3 enhances the dehydrogenation kinetics and changes the controlling mechanism of the second dehydrogenation step. Microstructural analysis using high-resolution transmission electron microscopy (HRTEM) reveals significant differences in the MgB2 morphology between the doped and undoped systems.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Biochemistry & Molecular Biology
Ou Jin, Yuanyuan Shang, Xiaohui Huang, Dorothee Vinga Szabo, Thi Thu Le, Stefan Wagner, Thomas Klassen, Christian Kuebel, Claudio Pistidda, Astrid Pundt
Summary: The addition of 3TiCl(3)center dot AlCl3 is found to improve the dehydrogenation kinetics of the reactive hydride composite LiBH4-MgH2. The growth process of MgB2 is studied, and it is observed that MgB2 prefers to form on TiB2 nanoparticles due to the creation of an interface that reduces the elastic strain energy density. The kinetics of MgB2 growth is described by the JMAK equation, and it is suggested that the nucleation center change from Mg to TiB2 leads to a transition from interface- to diffusion-controlled growth, resulting in a change in MgB2 morphology.
Article
Engineering, Environmental
A. M. Neves, J. Puszkiel, G. Capurso, J. M. Bellosta von Colbe, T. Klassen, J. Jepsen
Summary: In this study, a comprehensive kinetic model was developed using the separable variable method to describe the dehydrogenation behavior of MgH2 and LiBH4 under different operative conditions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Archa Santhosh, ShinYoung Kang, Nathan Keilbart, Brandon C. Wood, Thomas Klassen, Paul Jerabek, Martin Dornheim
Summary: This study investigates the growth and nature of oxide films on the surface of TiFe intermetallic compound using first-principles methods. Different structures and temperature effects of oxide phases are studied in detail. The interaction between the oxidized surface and hydrogen is evaluated, providing important insights for the design of activation methods for TiFe and related materials as hydrogen storage materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Review
Energy & Fuels
Luca Pasquini, Kouji Sakaki, Etsuo Akiba, Mark D. Allendorf, Ebert Alvares, Jose R. Ares, Dotan Babai, Marcello Baricco, Jose Bellosta von Colbe, Matvey Bereznitsky, Craig E. Buckley, Young Whan Cho, Fermin Cuevas, Patricia de Rango, Erika Michela Dematteis, Roman V. Denys, Martin Dornheim, J. F. Fernandez, Arif Hariyadi, Bjrn C. Hauback, Tae Wook Heo, Michael Hirscher, Terry D. Humphries, Jacques Huot, Isaac Jacob, Torben R. Jensen, Paul Jerabek, Shin Young Kang, Nathan Keilbart, Hyunjeong Kim, Michel Latroche, F. Leardini, Haiwen Li, Sanliang Ling, Mykhaylo V. Lototskyy, Ryan Mullen, Shin-ichi Orimo, Mark Paskevicius, Claudio Pistidda, Marek Polanski, Julian Puszkiel, Eugen Rabkin, Martin Sahlberg, Sabrina Sartori, Archa Santhosh, Toyoto Sato, Roni Z. Shneck, Magnus H. Sorby, Yuanyuan Shang, Vitalie Stavila, Jin-Yoo Suh, Suwarno Suwarno, Le Thi Thu, Liwen F. Wan, Colin J. Webb, Matthew Witman, ChuBin Wan, Brandon C. Wood, Volodymyr A. Yartys
Summary: This review summarizes the latest research progress on hydrides based on magnesium and intermetallic compounds for energy storage. It covers topics such as hydrogen sorption mechanisms, synthesis and processing techniques, catalysts, and the development of new compounds. The article highlights the important role of these hydrides in the clean energy transition and the deployment of hydrogen as an energy vector.
PROGRESS IN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Yuanyuan Shang, Claudio Pistidda, Chiara Milanese, Alessandro Girella, Alexander Schokel, Thi Thu Le, Annbritt Hagenah, Oliver Metz, Thomas Klassen, Martin Dornheim
Summary: This manuscript proposes a method for obtaining high-quality NaAlH4 from automotive recycled alloy, and comprehensively explores its hydrogen storage properties using various experimental techniques. The results show that NaAlH4 with comparable properties to high-purity commercial NaAlH4 was successfully synthesized.
