Layer-by-layer uniformly confined Graphene-NaAlH4 composites and hydrogen storage performance

Huang, Yike; Shao, Huaxu; Zhang, Qiuyu; Zang, Lei; Guo, Hongwei; Liu, Yafei; Jiao, Lifang; Yuan, Huatang; Wang, Yijing

doi:10.1016/j.ijhydene.2020.03.241

Cited by 26 publications

(8 citation statements)

References 38 publications

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“…and non-pollution, hydrogen becomes one of the most promising new energy sources. [3][4][5] In recent years, many solid hydrogen storage materials have been developed, such as metal borohydrides, [6][7][8] metal alanates, [9,10] metal-nitrogenhydrogen systems, [11,12] ammonia-borane (NH 3 •BH 3 , AB) and its derivatives, [13] etc. Among them, AB with low molecular weight (30.87 g mol -1 ) exhibits non-toxicity, high hydrogen content (19.6 wt%), high stability in both air and aqueous solutions, and it is thus regarded as one of the ideal hydrogen storage materials.…”

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confidence: 99%

Ruthenium Supported on Cobalt‐Embedded Porous Carbon with Hollow Structure as Efficient Catalysts toward Ammonia‐Borane Hydrolysis for Hydrogen Production

Cui

Qiu

et al. 2021

Advanced Sustainable Systems

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Catalysts with high activity play an indispensable role in ammonia‐borane (AB) hydrolysis for hydrogen production. Supported catalysts are always used because proper support can effectively prevent metal particle agglomeration. In addition, the interaction between support and metal species can further enhance the catalytic activity. Herein, cobalt‐embedded porous carbon with polyhedral structure (CoPCP) is successfully synthesized by one‐step carbonization of a core‐shell structured ZIF‐8@ZIF‐67 composite. As support, Ru nanoparticles are loaded on CoPCP by in situ reduction to obtain Ru/CoPCP catalysts with a special hollow structure, effectively preventing Ru nanoparticles from agglomeration. Moreover, the existence of synergistic effect between Co metal and Ru nanoparticles in Ru/CoPCP catalyst is confirmed by a series of well‐designed control experiments. Both these factors endow the Ru/CoPCP catalyst with high activity and decent stability toward AB hydrolysis. A low activation energy (Ea = 31.25 kJ mol–1) and a high catalytic performance (turnover frequency = 243.4 molH2 molRu–1 min–1) are simultaneously achieved for Ru1/CoPCP‐1000 even with a low amount of Ru (1.88 wt%). This work represents a promising method to prepare the high‐activity catalysts with low content of noble metals for diverse applications in heterogeneous catalysis.

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confidence: 99%

Ruthenium Supported on Cobalt‐Embedded Porous Carbon with Hollow Structure as Efficient Catalysts toward Ammonia‐Borane Hydrolysis for Hydrogen Production

Cui

Qiu

et al. 2021

Advanced Sustainable Systems

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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 proper term for describing the materials resulting from the nanoconfinement of active hydride source into a nanoporous matrix is nanocomposite [4,41,52,54,60,66,[68][69][70]77,78].…”

Section: Nanocompositesmentioning

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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“…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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Layer-by-layer uniformly confined Graphene-NaAlH4 composites and hydrogen storage performance

Cited by 26 publications

References 38 publications

Ruthenium Supported on Cobalt‐Embedded Porous Carbon with Hollow Structure as Efficient Catalysts toward Ammonia‐Borane Hydrolysis for Hydrogen Production

Ruthenium Supported on Cobalt‐Embedded Porous Carbon with Hollow Structure as Efficient Catalysts toward Ammonia‐Borane Hydrolysis for Hydrogen Production

Recent Development in Nanoconfined Hydrides for Energy Storage

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

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