Heterojunction synergistic catalysis of MXene-supported PrF3 nanosheets for the efficient hydrogen storage of AlH3

Liang, Long; Zhao, Shaolei; Wang, Chunli; Yin, Dongming; Wang, Shaohua; Wang, Qingshuang; Liang, Fei; Li, Shouliang; Wang, Limin; Cheng, Yong

doi:10.1007/s12274-023-5875-8

Cited by 25 publications

(2 citation statements)

References 39 publications

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“…[3,4] For hydrogen storage material, different kinds of alloys including rare earth-based, Ti-based, Zr-based, Mg-based and V-based solid solution alloys, have been extensively investigated for electrochemical hydrogen storage and alkaline secondary batteries. [5][6][7][8][9] Recently, Co-based alloy becomes the hot spot and shows great development prospects due to its high theoretical capacity. The Co-containing materials (such as CoÀ B, CoÀ C, CoÀ Cu-Si, CoÀ P, CoÀ S, etc.)…”

Section: Introductionmentioning

confidence: 99%

Preparation of CO₂‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co₉S₈ Material

Jia,

Li,

Wang

et al. 2023

ChemistrySelect

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In this work, Co9S8 hydrogen storage material was synthesized by mechanical alloying. To improve the electrocatalytic activity and conductivity of Co9S8, a series of porous reduced graphene oxide (PRGO) materials were fabricated via a facile CO2 activation treatment of RGO at different processing times. The composites of Co9S8 doping with different amount of PRGO were manufactured through ball milling. During the electrochemical hydrogen storage test, the porous Co9S8+PRGO exhibited higher discharge capacity than Co9S8+NRGO and conventional Co9S8. Moreover, the CO2 activation time and additive amount of PRGO had significant impact on the electrochemical properties of Co9S8. Ultimately, the electrode of 6 wt.% PRGO‐2 modified Co9S8 attained the optimum discharge capacity of 653 mAh/g. The special porous structure and high specific surface area of porous graphene could provide more electrochemical active sites and facilitate the hydrogen diffusion. After PRGO modification, the cycling stability, high‐rate dischargeability (HRD) and kinetic properties of Co9S8 were also enhanced. It can be concluded that porous graphene possesses better effect than conventional graphene in improving the performance of hydrogen storage alloy.

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Section: Introductionmentioning

confidence: 99%

Preparation of CO₂‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co₉S₈ Material

Jia,

Li,

Wang

et al. 2023

ChemistrySelect

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“…Various storage techniques have been proposed, including physical (compressed gas and liquid hydrogen) and chemical (material-based) methods. , While physical storage provides high gravimetric capacity, it often incurs energy penalties from compression or liquefaction. Alternatively, chemical storage like metal hydrides, , nanomaterials, , graphene materials, , and organic compounds , are being developed. Among them, promising room-temperature hydrogen storage alloys such as LaNi 5 , TiMn 2 , , TiFe, LaMgNi, − and body-centered cubic (BCC)-type alloys − have emerged for both stationary and mobile applications.…”

Section: Introductionmentioning

confidence: 99%

Development of V-Free BCC Structured Alloys for Hydrogen Storage

Hu,

Tang,

Xiao

et al. 2023

ACS Appl. Energy Mater.

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V-free body-centered cubic (BCC) structured hydrogen storage alloys have gained significant attention for their low cost and high theoretical hydrogen storage capacity (3.8 wt %). However, before practical application, critical challenges, such as low dehydriding capacity, activation difficulty, and poor cyclic stability, need to be solved. In this work, an easily activated and high-performance V-free BCC-type alloy (Ti40Cr50Mo10Ce1) was successfully synthesized by heat treatment and Ce doping. The heat treatment significantly increased its dehydriding capacity to 2.5 wt %, attributed to a reduced slope factor (0.76–0.17), making it comparable to V-based BCC-type alloys. And the V-free BCC-type alloy, after Ce doping, enabled room-temperature hydrogen absorption, eliminating the need for high-temperature activation. Ce doping did not significantly affect the activation energy, enthalpy change, or hysteresis factor of the alloy during de/hydrogenation. Additionally, the V-free BCC-type alloy, after heat treatment and Ce doping, exhibited excellent cyclic stability, with a capacity retention rate of 90% after 100 cycles. This study provides valuable guidance for designing innovative and cost-effective hydrogen storage alloys.

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MXenes and MXene‐Based Metal Hydrides for Solid‐State Hydrogen Storage: A Review

ur Rehman,

Akram Khan,

Mansha

et al. 2024

Chemistry An Asian Journal

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Hydrogen‐driven energy is fascinating among the everlasting energy sources, particularly for stationary and onboard transportation applications. Efficient hydrogen storage presents a key challenge to accomplishing the sustainability goals of hydrogen economy. In this regard, solid‐state hydrogen storage in nanomaterials, either physically or chemically adsorbed, has been considered a safe path to establishing sustainability goals. Though metal hydrides have been extensively explored, they fail to comply with the set targets for practical utilization. Recently, MXenes, both in bare form and hybrid state with metal hydrides, have proven their flair in ascertaining the hydrides′ theoretical and experimental hydrogen storage capabilities far beyond the fancy materials and current state‐of‐the‐art technologies. This review encompasses the significant accomplishments achieved by MXenes (primarily in 2019–2024) for enhancing the hydrogen storage performance of various metal hydride materials such as MgH2, AlH3, Mg(BH4)2, LiBH4, alanates, and composite hydrides. It also discusses the bottlenecks of metal hydrides for hydrogen storage, the potential use of MXenes hybrids, and their challenges, such as reversibility, H2 losses, slow kinetics, and thermodynamic barriers. Finally, it concludes with a detailed roadmap and recommendations for mechanistic‐driven future studies propelling toward a breakthrough in solid material‐driven hydrogen storage using cost‐effective, efficient, and long‐lasting solutions.

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Heterojunction synergistic catalysis of MXene-supported PrF3 nanosheets for the efficient hydrogen storage of AlH3

Cited by 25 publications

References 39 publications

Preparation of CO₂‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co₉S₈ Material

Preparation of CO₂‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co₉S₈ Material

Development of V-Free BCC Structured Alloys for Hydrogen Storage

MXenes and MXene‐Based Metal Hydrides for Solid‐State Hydrogen Storage: A Review

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Heterojunction synergistic catalysis of MXene-supported PrF3 nanosheets for the efficient hydrogen storage of AlH3

Cited by 25 publications

References 39 publications

Preparation of CO2‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co9S8 Material

Preparation of CO2‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co9S8 Material

Development of V-Free BCC Structured Alloys for Hydrogen Storage

MXenes and MXene‐Based Metal Hydrides for Solid‐State Hydrogen Storage: A Review

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Preparation of CO₂‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co₉S₈ Material

Preparation of CO₂‐activated Porous Graphene for Enhancing the Electrochemical Hydrogen Storage Properties of Co₉S₈ Material