Nano-synergy enables highly reversible storage of 9.2 wt% hydrogen at mild conditions with lithium borohydride

Zhang, Xin; Zhang, Lingchao; Zhang, Wenxuan; Ren, Zhuanghe; Huang, Zhenguo; Hu, Jianjiang; Gao, Mingxia; Pan, Hongge; Liu, Yongfeng

doi:10.1016/j.nanoen.2021.105839

Cited by 60 publications

(19 citation statements)

References 48 publications

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“…A series of notable advances have been observed for complex hydrides as well, although their details are beyond the scope of this review. In short, metal tetrahydridoaluminates/alanates [14,51]: LiAlH 4 [54,81,96,99,101,111,113,135,166,178], NaAlH 4 [33,45,50,69,74,82,[127][128][129]167,214,234,235], tetrahydridoborates/borohydrides [3,12,14,42]: LiBH 4 [42,45,47,54,56,70,78,81,87,89,91,93,99,100,104,106,108,120,123,130,…”

Section: Discussionmentioning

confidence: 99%

“…The overall enhancement of kinetic and thermodynamic parameters can be tuned by utilization of catalysts. This is usually implemented to improve behavior of systems that already show promising results including recyclability (Table 9) [19,20,34,43,57,65,68,77,82,92,102,108,113,118,120,125,131,132,134,136,139,143,147,158,160,[166][167][168]172,[183][184][185][186][187][188][189][190][191][192]194,[196][197][198][199][200][201][202][203]…”

Section: (Nano)catalyst Additionmentioning

confidence: 99%

“…tetrahydridoborates/borohydrides [3,12,14,42]: LiBH4 [42,45,47,54,56,70,78,81,87,89,91,93,99,100,104,106,108,120,123,130,134,135,161,216,[230][231][236][237][238][239][240],…”

Section: Tm-hydridesmentioning

confidence: 99%

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Recent Development in Nanoconfined Hydrides for Energy Storage

Comănescu

2022

IJMS

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Hydrogen is the ultimate vector for a carbon-free, sustainable green-energy. While being the most promising candidate to serve this purpose, hydrogen inherits a series of characteristics making it particularly difficult to handle, store, transport and use in a safe manner. The researchers’ attention has thus shifted to storing hydrogen in its more manageable forms: the light metal hydrides and related derivatives (ammonia-borane, tetrahydridoborates/borohydrides, tetrahydridoaluminates/alanates or reactive hydride composites). Even then, the thermodynamic and kinetic behavior faces either too high energy barriers or sluggish kinetics (or both), and an efficient tool to overcome these issues is through nanoconfinement. Nanoconfined energy storage materials are the current state-of-the-art approach regarding hydrogen storage field, and the current review aims to summarize the most recent progress in this intriguing field. The latest reviews concerning H2 production and storage are discussed, and the shift from bulk to nanomaterials is described in the context of physical and chemical aspects of nanoconfinement effects in the obtained nanocomposites. The types of hosts used for hydrogen materials are divided in classes of substances, the mean of hydride inclusion in said hosts and the classes of hydrogen storage materials are presented with their most recent trends and future prospects.

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Section: Discussionmentioning

confidence: 99%

Section: (Nano)catalyst Additionmentioning

confidence: 99%

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Recent Development in Nanoconfined Hydrides for Energy Storage

Comănescu

2022

IJMS

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“…Pore size distribution (PSD) and pore geometry should always play a decisive role in nanoconfinement results, especially for C-nanoscaffolds where microporosity percentage could be dominant [ 351 ]. The nano-synergy effect has recently made possible a reversible hydrogen capacity of 9.2 wt.% [ 352 ]. Investigation of possible side-pathways in a dehydrogenation reaction and particularly establishing the nature of intermediate species (such as Li 2 B 12 H 12 ) could trigger new directions in nanoconfined borohydride materials [ 41 , 323 , 324 , 325 ].…”

Section: Model Systems For Hydrogen Storage Of Mbh and Other Rmh (Rea...mentioning

confidence: 99%

Complex Metal Borohydrides: From Laboratory Oddities to Prime Candidates in Energy Storage Applications

Comănescu

2022

Materials

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Despite being the lightest element in the periodic table, hydrogen poses many risks regarding its production, storage, and transport, but it is also the one element promising pollution-free energy for the planet, energy reliability, and sustainability. Development of such novel materials conveying a hydrogen source face stringent scrutiny from both a scientific and a safety point of view: they are required to have a high hydrogen wt.% storage capacity, must store hydrogen in a safe manner (i.e., by chemically binding it), and should exhibit controlled, and preferably rapid, absorption–desorption kinetics. Even the most advanced composites today face the difficult task of overcoming the harsh re-hydrogenation conditions (elevated temperature, high hydrogen pressure). Traditionally, the most utilized materials have been RMH (reactive metal hydrides) and complex metal borohydrides M(BH4)x (M: main group or transition metal; x: valence of M), often along with metal amides or various additives serving as catalysts (Pd2+, Ti4+ etc.). Through destabilization (kinetic or thermodynamic), M(BH4)x can effectively lower their dehydrogenation enthalpy, providing for a faster reaction occurring at a lower temperature onset. The present review summarizes the recent scientific results on various metal borohydrides, aiming to present the current state-of-the-art on such hydrogen storage materials, while trying to analyze the pros and cons of each material regarding its thermodynamic and kinetic behavior in hydrogenation studies.

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“…Research and development of advanced hydrogen storage materials is of vital importance for the practical application of solid-state hydrogen storage. During the past decades, many light-weight hydrogen storage materials have been discovered and developed ( Li et al, 2019a ), for example, light binary metal hydrides ( Liu et al, 2020a ; Liu et al, 2021a ; Zhang et al, 2021a ; Huang et al, 2021 ; Jiang et al, 2021 ; Si et al, 2021 ), metal aluminum hydrides ( Huang et al, 2020 ; Li et al, 2020 ; Ren et al, 2021 ), metal borohydrides ( Zhang et al, 2021b ; Neves et al, 2021 ; Wang and Aguey-Zinsou, 2021 ; Xian et al, 2021 ), imides and amides ( Chao et al, 2020 ; Chen et al, 2020 ; Liu et al, 2021b ), etc.…”

Section: Introductionmentioning

confidence: 99%

Co-Addition of Mg2Si and Graphene for Synergistically Improving the Hydrogen Storage Properties of Mg−Li Alloy

et al. 2021

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Mg−Li alloy possesses a high hydrogen capacity. However, the hydrogenation and dehydrogenation performances are still far from practical application. In this work, Mg2Si (MS) and graphene (G) were employed together to synergistically improve the hydrogen storage properties of Mg−Li alloy. The structures of the samples were studied by XRD and SEM methods. The hydrogen storage performances of the samples were studied by nonisothermal and isothermal hydrogenation and dehydrogenation, thermal analysis, respectively. It is shown that the onset dehydrogenation temperature of Mg−Li alloy was synergistically reduced from 360°C to 310°C after co-addition of Mg2Si and graphene. At a constant temperature of 325°C, the Mg−Li−MS−G composite can release 2.7 wt.% of hydrogen within 2 h, while only 0.2 wt.% of hydrogen is released for the undoped Mg−Li alloy. The hydrogenation activation energy of the Mg−Li−MS−G composite was calculated to be 86.5 kJ mol−1. Microstructure and hydrogen storage properties studies show that graphene can act as a grinding aid during the ball milling process, which leads to a smaller particle size for the composites. This work demonstrates that coaddition of Mg2Si and graphene can synergistically improve the hydrogen storage properties of Mg−Si alloy and offers an insight into the role of graphene in the Mg−Li−MS−G composite.

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Nano-synergy enables highly reversible storage of 9.2 wt% hydrogen at mild conditions with lithium borohydride

Cited by 60 publications

References 48 publications

Recent Development in Nanoconfined Hydrides for Energy Storage

Recent Development in Nanoconfined Hydrides for Energy Storage

Complex Metal Borohydrides: From Laboratory Oddities to Prime Candidates in Energy Storage Applications

Co-Addition of Mg2Si and Graphene for Synergistically Improving the Hydrogen Storage Properties of Mg−Li Alloy

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