Demonstration of the nanosize effect of carbon nanomaterials on the dehydrogenation temperature of ammonia borane

So, Soon Hyeong; Jang, Jun Ho; Sung, Sae Jin; Yang, Seung Jae; Nam, Ki Tae; Park, Chong Rae

doi:10.1039/c9na00501c

Cited by 14 publications

(5 citation statements)

References 33 publications

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“…First, Tang et al [261] clearly showed that nanoparticles with a diameter of 4 nm were able to dehydrogenate starting from 50 °C, whereas larger nanoparticles (diameter of 10 nm) dehydrogenated from 67 °C. So et al [262] showed that the dehydrogenation of ammonia borane Third, the ammonia borane nanophase is amorphous and, accordingly, it has an altered dihydrogen N−H δ+ •••H δ− −B network [253], and more mobile and active molecules [174].…”

Section: Nanoconfinement Of Ammonia Boranementioning

confidence: 99%

“…The positive effects described for the silica scaffolds are valid for the carbon scaffolds (Figure 15). First, Tang et al [261] clearly showed that nanoparticles with a diameter of 4 nm were able to dehydrogenate starting from 50 • C, whereas larger nanoparticles (diameter of 10 nm) dehydrogenated from 67 • C. So et al [262] showed that the dehydrogenation of ammonia borane could be tuned by controlling the scaffold pore size in such a way that the narrower the pore size is, the lower the peak temperature of the H 2 release. In other words, microporosity (a pore size of <2 nm) should be favored [263].…”

Section: Nanoconfinement Of Ammonia Boranementioning

confidence: 99%

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Ammonia Borane: An Extensively Studied, Though Not Yet Implemented, Hydrogen Carrier

Demirci

2020

Energies

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Ammonia borane H3N−BH3 (AB) was re-discovered, in the 2000s, to play an important role in the developing hydrogen economy, but it has seemingly failed; at best it has lagged behind. The present review aims at analyzing, in the context of more than 300 articles, the reasons why AB gives a sense that it has failed as an anodic fuel, a liquid-state hydrogen carrier and a solid hydrogen carrier. The key issues AB faces and the key challenges ahead it has to address (i.e., those hindering its technological deployment) have been identified and itemized. The reality is that preventable errors have been made. First, some critical issues have been underestimated and thereby understudied, whereas others have been disproportionally considered. Second, the potential of AB has been overestimated, and there has been an undoubted lack of realistic and practical vision of it. Third, the competition in the field is severe, with more promising and cheaper hydrides in front of AB. Fourth, AB has been confined to lab benches, and consequently its technological readiness level has remained low. This is discussed in detail herein.

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Section: Nanoconfinement Of Ammonia Boranementioning

confidence: 99%

Section: Nanoconfinement Of Ammonia Boranementioning

confidence: 99%

Ammonia Borane: An Extensively Studied, Though Not Yet Implemented, Hydrogen Carrier

Demirci

2020

Energies

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“…NaBH4 [49,74,216,236,241], Mg(BH4)2 [42,55,61,70,105,126,132,151,159,207,216,220,224,236,242,243], Ca(BH4)2 [116,216,236,243] and (TM)(BH4)x [150,216], ammonia-borane NH3.BH3 [36,38,63,64,75,85,86,88,90,139,[140][141][142][143][144]153,154,156,162,171,175,197,213,[244]…”

Section: Tm-hydridesmentioning

confidence: 99%

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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“…Other details about the infiltration method; the onset dehydrogenation temperature, T onset ; the peak at which H 2 is released, T peak ; the activation energy, E a ; and the byproducts detected from the sample are given, when available. [278] used different carbons with different pore size distribution to confine AB. They found that carbon with pores of about 0.4 nm presented the best performance in their study.…”

Section: Silicon-based Scaffoldsmentioning

confidence: 99%

Destabilization of Boron-Based Compounds for Hydrogen Storage in the Solid-State: Recent Advances

et al. 2021

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Boron-based materials have been widely studied for hydrogen storage applications. Examples of these compounds are borohydrides and boranes. However, all of these present some disadvantages that have hindered their potential application as hydrogen storage materials in the solid-state. Thus, different strategies have been developed to improve the dehydrogenation properties of these materials. The purpose of this review is to provide an overview of recent advances (for the period 2015–2021) in the destabilization strategies that have been considered for selected boron-based compounds. With this aim, we selected seven of the most investigated boron-based compounds for hydrogen storage applications: lithium borohydride, sodium borohydride, magnesium borohydride, calcium borohydride, ammonia borane, hydrazine borane and hydrazine bisborane. The destabilization strategies include the use of additives, the chemical modification and the nanosizing of these compounds. These approaches were analyzed for each one of the selected boron-based compounds and these are discussed in the present review.

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Demonstration of the nanosize effect of carbon nanomaterials on the dehydrogenation temperature of ammonia borane

Abstract: This study aims to clarify the correlation between the particle size of ammonia borane and the H2 desorption temperature.

Cited by 14 publications

References 33 publications

Ammonia Borane: An Extensively Studied, Though Not Yet Implemented, Hydrogen Carrier

Ammonia Borane: An Extensively Studied, Though Not Yet Implemented, Hydrogen Carrier

Recent Development in Nanoconfined Hydrides for Energy Storage

Destabilization of Boron-Based Compounds for Hydrogen Storage in the Solid-State: Recent Advances

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