Article
Chemistry, Physical
Mahvash Afzal, Nandlal Gupta, Aashish Mallik, K. S. Vishnulal, Pratibha Sharma
Summary: This study continues the computational analysis of a reactor with hexagonal honeycomb-based heat transfer enhancements, investigating the performance of a metal alloy and the reactor experimentally. It determines the gravimetric capacity and reaction kinetics of the alloy La0.9Ce0.1Ni5, while also exploring the impact of operating conditions on reactor performance. Additionally, evaporative cooling is tested for the first time as a heat removal technique for metal hydride based hydrogen storage reactors and found to significantly improve heat transfer.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Chemistry, Physical
N. A. Ali, N. A. Sazelee, M. Ismail
Summary: Metal hydrides and complex hydrides are the most convenient method for hydrogen storage, offering high hydrogen capacity, but facing challenges of high operating temperature and low reversibility.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Materials Science, Multidisciplinary
Xin F. Tan, Manjin Kim, Kazuhiro Yasuda, Kazuhiro Nogita
Summary: Bulk Mg-based hydrogen storage materials have the potential to provide a low-cost solution for energy storage and transportation. They are safer and more oxidation resistant compared to nano powders. Various alloying elements and innovative processing methods can be used to improve the performance of bulk Mg alloys in terms of hydrogen sorption kinetics and stability.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Review
Energy & Fuels
Nejc Klopcic, Ilena Grimmer, Franz Winkler, Markus Sartory, Alexander Trattner
Summary: Efficient energy storage is crucial for the shift to renewable energies, and hydrogen storage in metal hydrides offers high energy densities and safety advantages. This work investigates the technical, economic, and environmental aspects of different metal hydride materials, including their properties, production methods, and potential enhancements. The impacts on material costs, raw material abundance, and import dependency are discussed, and the advantages and disadvantages of selected materials are derived for material selection. Further research on material properties and system-level improvements is needed for widespread application of metal hydrides.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Boris P. Tarasov, Pavel V. Fursikov, Alexey A. Volodin, Mikhail S. Bocharnikov, Yustinas Ya Shimkus, Aleksey M. Kashin, Volodymyr A. Yartys, Stanford Chidziva, Sivakumar Pasupathi, Mykhaylo V. Lototskyy
Summary: This article provides an overview of literature data and R&D activities on energy storage technologies using hydrogen and metal hydrides, with a focus on selecting metal hydride materials based on AB(5)- and AB(2)-type intermetallic compounds for hydrogen storage and compression applications. It also discusses features of integrated energy storage systems utilizing metal hydride hydrogen storage and compression components developed by IPCP and HySA Systems.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Yang Meng, Shunlong Ju, Wei Chen, Xiaowei Chen, Guanglin Xia, Dalin Sun, Xuebin Yu
Summary: By fabricating V4Nb18O55 microspheres, the H-2 desorption and absorption properties of MgH2 can be improved and the uniform formation of Nb/V interfaces can be achieved, resulting in the reduction of dehydrogenation temperature of MgH2 and the enhancement of hydrogenation reaction rate.
Article
Chemistry, Physical
A. G. Olabi, Adel Saleh Bahri, Aasim Ahmed Abdelghafar, Ahmad Baroutaji, Enas Taha Sayed, Abdul Hai Alami, Hegazy Rezk, Mohammad Ali Abdelkareem
Summary: Hydrogen has been identified as the most promising carrier of clean energy in the efforts to replace fossil fuels. Hydrogen generation technologies play a key role in the energy mix and integrating them with other renewable energy systems is becoming increasingly feasible. While progress has been made in large-scale production and storage of hydrogen, local conditions and multiple strategies may be needed to achieve significant production and storage.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Rui Shi, Haoxing Yan, Jiguang Zhang, Haiguang Gao, Yunfeng Zhu, Yana Liu, Xiaohui Hu, Yao Zhang, Liquan Li
Summary: A simple, cost-effective method of water treatment is proposed to produce highly reactive and air-stable bulk Mg-Ni-based hydrides in this study. The method can significantly decrease the dehydrogenation temperature and allow the hydrides to be stored under ambient conditions without losing activity, providing an alternative approach to design low-cost, highly active metal hydrides.
Article
Chemistry, Physical
Huang Liu, Jingxi Zhang, Pei Sun, Chengshang Zhou, Yong Liu, Zhigang Zak Fang
Summary: TiFe alloy is an excellent candidate for stationary hydrogen storage due to its superior properties. However, the need for high-temperature activation has hindered its practical application. This study investigates the activation of TiFe alloys with different ratios and finds that TiFe0.90 alloy can be activated at room temperature and moderate hydrogen pressure, while equimolar TiFe alloy has poor activation kinetics. The presence of Ti4Fe2O1-x phase in the TiFe0.9 alloy plays a critical role in the activation process, serving as a conduit for hydrogen absorption by TiFe.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
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
Volodymyr A. Yartys, Colin J. Webb, Fermin Cuevas
Summary: The paper provides an overview of advanced in situ diffraction studies for probing the structure and reacting mechanisms of hydrogen and energy storage materials. These studies utilize high flux diffraction beam and high resolution measurements to establish the mechanism of phase-structural transformations and their kinetics. Various conditions, such as hydrogen/deuterium pressures and temperatures, as well as different charge-discharge states, are considered. The paper also highlights the contributions of Dr. Michel Latroche and summarises a long-standing collaboration between the co-authors in the field.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Green & Sustainable Science & Technology
Alok Kumar, P. Muthukumar, Pratibha Sharma, E. Anil Kumar
Summary: Hydrogen is considered a reliable option for clean energy in a sustainable society. Absorption/adsorption based solid-state hydrogen storage technology is a safer alternative to compressed and liquefied hydrogen storage, using materials such as metal hydrides and complex hydrides. This review provides an overview of material options, alloy characteristics, and worldwide advancements in solid-state hydrogen storage.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Chemistry, Physical
Bruno Hessel Silva, Walter Jose Botta, Guilherme Zepon
Summary: Computational thermodynamic tools were used to design Ti-V-Nb-Cr alloys with good hydrogen storage properties. The phase diagram calculation and PCT diagram analysis helped identify suitable compositions. The synthesized alloys showed high hydrogen absorption capacity at room temperature without activation treatment. The Ti11V30Nb28Cr31 alloy exhibited good reversibility and stability, as demonstrated by cycling experiments and air exposure tests.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Huang Liu, Jingxi Zhang, Pei Sun, Chengshang Zhou, Yong Liu, Zhigang Zak Fang
Summary: In this study, the effect of oxygen addition on the phase composition and hydrogen storage properties of TiFe alloys was systematically investigated. The results showed that high oxygen content improved the initial hydrogen sorption of TiFe, but reduced the hydrogen capacity. Increasing oxygen content also slightly increased the hydrogenation equilibrium pressure, but had almost no impact on the thermodynamics of TiFe alloy.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
D. Pukazhselvan, David Alexandre Reis Silva, K. S. Sandhya, Sara Fateixa, Aliaksandr Shaula, Helena Nogueira, Igor Bdikin, Duncan Paul Fagg
Summary: This study demonstrates the transformation of zirconia additive into zirconium hydride and its significant impact on lowering the dehydrogenation temperature of magnesium hydride. The results provide evidence of the chemical transformation of zirconia and support the formation of an active in situ product, zirconium hydride, which enables low temperature dehydrogenation of magnesium hydride. The study also highlights the dispersion of tiny nanoparticles on the surface and the formation of highly active in situ nanocatalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)