Ammonia borane with polyvinylpyrrolidone as a hydrogen storage material: Comparison of different molecular weights

Seemaladinne, Ramanjaneyulu; Pati, Sahithya; Kharel, Krishna; Bafana, Adarsh; al-Wahish, Amal; Wujcik, Evan K.; Günaydın-Şen, Özge

doi:10.1016/j.jpcs.2017.05.033

Cited by 11 publications

(4 citation statements)

References 32 publications

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“…Poly(methyl acrylate) is a possible scaffold [280]. The as-obtained nanophase released hydrogen and some ammonia from 70 • C. Comparable behaviors were reported for polyacrylamide and polyvinylpyrrolidone [281,282]. With hyper-crosslinked porous polymers, ammonia borane is infiltrated by the capillary effect.…”

Section: Nanoconfinement Of Ammonia Boranementioning

confidence: 96%

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: 96%

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

Demirci

2020

Energies

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“…Other findings were reported in further studies [297,298], in which PEO also prevented the foaming of AB, and the formation of a crystalline intermediate during the dehydrogenation of the composite. Seemaladinne et al [299] used polyvinylpyrrolidone (PVP) embedded with AB particles. The apparent activation energy of the composites decreased in comparison with pristine AB.…”

Section: Polymersmentioning

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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“…Previous studies have employed liquid ,− and solid-state oxidizers or surrogate exothermic reactions to alter the condensed phase decomposition intermediate of AB, to enhance its energy release rate by inhibiting BNH x formation. However, this limits the use of AB in propulsion systems using air as an oxidizer. , Some studies have reported that the interaction with polymer binders can generate NH 3 and H 2 from AB instead of BZ. − However, those studies are lacking in evidence and discussion on the fate of the boron atoms during AB decomposition.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Cleavage of the Dative Bond of Ammonia Borane by Polymeric Carbonyl Groups for Enhanced Energy Generation

et al. 2023

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Dissociation of the dative (B–N) bond of ammonia borane (NH3BH3/AB) is essential to prevent its thermochemical oligomerization to chemically resistant BNH x compounds, for its applicability as a fuel in high-energy propulsion systems. We show that when AB is incorporated into polymer matrices containing carbonyl functional groups, thermal activation causes the carbonyl groups to engage in nucleophilic interactions with AB. Such interactions catalyze the lysis of the dative B–N bond resulting in the decomposition of AB to NH3 and B2H6 gases, with no evidence of oligomerization. We find that the carbonyl groups function as catalysts and do not participate in any net reaction. In situ high-heating rate (∼105 K/s) characterizations demonstrate that facile-synthesized hierarchical (micro/nano) composite particles of AB/carbonyl-based polymers completely gasify to NH3 and B2H6 at ∼510 K, followed by spontaneous ignition in the air with negligible delay. Thus, the current chemical pathway enables the solid-state storage of reactive fuels, NH3 and B2H6, and their controlled on-demand release for high-energy applications.

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Ammonia borane with polyvinylpyrrolidone as a hydrogen storage material: Comparison of different molecular weights

Cited by 11 publications

References 32 publications

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

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

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

Catalytic Cleavage of the Dative Bond of Ammonia Borane by Polymeric Carbonyl Groups for Enhanced Energy Generation

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