Improved reversible dehydrogenation performance of MgH2 by the synergistic effects of porous boron nitride and NbF5

Zhu, Lei; Liao, Yanxin; Zhong, Yujie; Cui, Jing; Wang, Desen; Wang, Kuikui

doi:10.1016/j.est.2020.101418

Cited by 17 publications

(3 citation statements)

References 63 publications

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“…Gaseous hydrogen storage is a method of storing hydrogen using high-pressure containers. According to the pressure level, storage containers can be divided into Type I (<20 MPa), Type II (20-30 MPa), Type III (30)(31)(32)(33)(34)(35)(36)(37)(38)(39)(40)(41)(42)(43)(44)(45), and Type IV (>45 MPa) [21,22]. Type I cylinders are usually made of seamless steel cylinders, and Type II cylinders are wound with glass-fiber-reinforced materials on the outside of the steel cylinders.…”

Section: Compressed Gaseous Hydrogen Storagementioning

confidence: 99%

“…There are many types of solid-state hydrogen storage materials, mainly including metal hydrides, complex hydrides, chemical hydrides, etc. Among them, metal hydrides have become the most studied and most promising type of application due to their high hydrogen storage capacity and good cyclic stability [42][43][44][45]. According to their chemical composition, metal hydrides can be further divided into AB 5 type (such as LaNi 5 ), AB 2 type (such as ZrV 2 ), AB type (such as TiFe), A 2 B type (such as Mg 2 Ni), etc.…”

Section: Hydrogen Storage Materialsmentioning

confidence: 99%

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Research Progress and Application Prospects of Solid-State Hydrogen Storage Technology

Xu,

Zhou,

et al. 2024

Molecules

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Solid-state hydrogen storage technology has emerged as a disruptive solution to the “last mile” challenge in large-scale hydrogen energy applications, garnering significant global research attention. This paper systematically reviews the Chinese research progress in solid-state hydrogen storage material systems, thermodynamic mechanisms, and system integration. It also quantitatively assesses the market potential of solid-state hydrogen storage across four major application scenarios: on-board hydrogen storage, hydrogen refueling stations, backup power supplies, and power grid peak shaving. Furthermore, it analyzes the bottlenecks and challenges in industrialization related to key materials, testing standards, and innovation platforms. While acknowledging that the cost and performance of solid-state hydrogen storage are not yet fully competitive, the paper highlights its unique advantages of high safety, energy density, and potentially lower costs, showing promise in new energy vehicles and distributed energy fields. Breakthroughs in new hydrogen storage materials like magnesium-based and vanadium-based materials, coupled with improved standards, specifications, and innovation mechanisms, are expected to propel solid-state hydrogen storage into a mainstream technology within 10–15 years, with a market scale exceeding USD 14.3 billion. To accelerate the leapfrog development of China’s solid-state hydrogen storage industry, increased investment in basic research, focused efforts on key core technologies, and streamlining the industry chain from materials to systems are recommended. This includes addressing challenges in passenger vehicles, commercial vehicles, and hydrogen refueling stations, and building a collaborative innovation ecosystem involving government, industry, academia, research, finance, and intermediary entities to support the achievement of carbon peak and neutrality goals and foster a clean, low-carbon, safe, and efficient modern energy system.

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Section: Compressed Gaseous Hydrogen Storagementioning

confidence: 99%

Section: Hydrogen Storage Materialsmentioning

confidence: 99%

Research Progress and Application Prospects of Solid-State Hydrogen Storage Technology

Xu,

Zhou,

et al. 2024

Molecules

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“…Lowering the operating temperature and increasing the rate of dehydrogenation of MgH 2 are key challenges for its application, which can be overcome by catalytic, alloying, nano-grading and nano-constraining methods ( Xia et al, 2015 ; Yu et al, 2017 ; Zhu et al, 2020a ). Adjusting the binding energy of the Mg-H bonds by the alloy element ( Edalati et al, 2018 ) or locally by additives is an effective way to alter the MgH 2 thermodynamics.…”

Section: Introductionmentioning

confidence: 99%

Revealing the effect of 2D carbides with different metal sites for improving hydrogen storage in MgH2

Ren

Wang

2022

Front. Chem.

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Two-dimensional (2D) carbon materials are considered as efficient catalysts for improving hydrogen storage in MgH2, but their catalytic mechanisms of different materials remain unclear. Herein we compare the hydrogen storage properties of MgH2 with doping different 2D carbon materials for revealing their catalytic effecting mechanisms. It can be seen that the effect of 2D metal carbides including Nb2C and Ti2C are superior to 2D graphene for improving hydrogen storage properties of MgH2, where the Ti2C exhibits the best catalytic effect with a remarkable decrease of activation energy (Ea) from ∼124 kJ/mol for doping graphene to ∼86 kJ/mol. This is related to the changes of individual metal and graphite chemical valence states of catalysts. The high catalytic activity of the hydrogen storage reaction originates from its unique layered structure and in situ formation of MHX, i.e., the tiny metal crystals can serve as a channel to facilitate hydrogen transport in MgH2 matrix. Moreover, the Ti catalytic effect is better than Nb, which originates from the surface of the multivalent Ti atoms is an intermediate of the electron moving between H− and Mg2+, thus leading to the Ti2C catalyzed MgH2 with superior hydrogen kinetic and cyclic performance.

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Review on Hydrogen Storage Performance of MgH₂: Development and Trends

2021

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Hydrogen storage technology is related to the process of hydrogen energy market. Efficient and safe hydrogen storage materials have always been the goal pursued by people. In the past few years, oceans of materials for hydrogen storage have been researched, MgH2 is considered to be one of the most potential hydrogen storage materials due to its high hydrogen storage capacity, good reversibility and price advantage. However, its development has been limited by its good thermodynamic stability and slow dehydrogenation kinetics. In this paper, the improvement of hydrogen storage performance of MgH2 is summarized from catalyst doping, MgH2 nanosizing, alloying and the construction of composite system. In particular, catalyst doping and MgH2 nanosizing will be more effective modification strategies. With the development of nanotechnology, monatomic catalyst will also become a research hotspot. In view of the changes in thermodynamic properties caused by the nanofabrication of MgH2, the loadless freestanding nano MgH2 will undoubtedly receive more attention.

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Improved reversible dehydrogenation performance of MgH2 by the synergistic effects of porous boron nitride and NbF5

Cited by 17 publications

References 63 publications

Research Progress and Application Prospects of Solid-State Hydrogen Storage Technology

Research Progress and Application Prospects of Solid-State Hydrogen Storage Technology

Revealing the effect of 2D carbides with different metal sites for improving hydrogen storage in MgH2

Review on Hydrogen Storage Performance of MgH₂: Development and Trends

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Improved reversible dehydrogenation performance of MgH2 by the synergistic effects of porous boron nitride and NbF5

Cited by 17 publications

References 63 publications

Research Progress and Application Prospects of Solid-State Hydrogen Storage Technology

Research Progress and Application Prospects of Solid-State Hydrogen Storage Technology

Revealing the effect of 2D carbides with different metal sites for improving hydrogen storage in MgH2

Review on Hydrogen Storage Performance of MgH2: Development and Trends

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Review on Hydrogen Storage Performance of MgH₂: Development and Trends