Solid-Phase Hydrogen Storage Based on NH3BH3-SiO2 Nanocomposite for Thermolysis

Jin, Joon-Hyung; Shin, Seung-Hun; Jung, Jihoon

doi:10.1155/2019/6126031

Cited by 6 publications

(4 citation statements)

References 37 publications

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“…The chemical dopant destabilization strategy is based on grain-to-grain contact between the dopant and ammonia borane, and nanosizing the dopant allows increased contacts. In this way, elsewhere, silicon [228], silica [229] and nickel [230] were used in the form of nanosized dopants. Some of the studied dopants contain oxygen and protic hydrogen.…”

Section: Chemical Doping Of Solid Ammonia Boranementioning

confidence: 99%

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: Chemical Doping Of Solid Ammonia Boranementioning

confidence: 99%

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

Demirci

2020

Energies

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“…Other additives have also been added to NH 3 BH 3 to enhance its hydrogen storage performance. More than 12 wt % H 2 was found to be released below 90 °C within 1 min during the dehydrogenation processes of NH 3 BH 3 with a cotton-structured SiO 2 nanoadditive . With the addition of a Si nanoparticle, the induction period of NH 3 BH 3 was reduced and the amount of released hydrogen was increased .…”

Section: Aminoboranenh3bh3mentioning

confidence: 99%

“…More than 12 wt % H 2 was found to be released below 90 °C within 1 min during the dehydrogenation processes of NH 3 BH 3 with a cotton-structured SiO 2 nanoadditive. 267 With the addition of a Si nanoparticle, the induction period of NH 3 BH 3 was reduced and the amount of released hydrogen was increased. 268 Additionally, altering the polarity and intermolecular interactions of NH 3 BH 3 was demonstrated to be an effective path to produce a substantially improved dehydrogenation profile, where one H atom in the [NH 3 ] group was substituted in BH 3 NH 3 with a more electrondonating element.…”

Section: Enhancements Of Hydrogenmentioning

confidence: 99%

A Review of High Density Solid Hydrogen Storage Materials by Pyrolysis for Promising Mobile Applications

Huang

Cheng

Zhang

2021

Ind. Eng. Chem. Res.

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Hydrogen is one of the cleanest energies with potential to have zero carbon emission. Hydrogen storage is a challenging phase for the hydrogen energy application. The safety, cost, and transportation of compressed and liquified hydrogen hinder the widespread application of hydrogen energy. Chemical absorption of hydrogen in solid hydrogen storage materials is a promising hydrogen storage method due to its high storage and transportation performance. Hydrogen storage density, dehydrogenation temperature, and dehydrogenation dynamics are the main challenges for the hydrogen storage materials. The ultimate goal of the system gravimetric capacity was set by the Department of Energy to be 6.5 wt % with a working temperature from −40 to 60 °C. The theoretical densities of most present hydrogen storage materials are even lower than 6.5 wt %, which make it impossible to reach the system gravimetric capacity goal. Only hydrogen storage materials with high theoretical density (≥10 wt %) with further modification have the possibility to reach the goal. However, most of the reviews focus on the research progress of general hydrogen storage materials investigated, many of which have low density. Hydrogen storage materials with high theoretical density including metal borohydrides, metal alanates, ammonia borane, metal amides, and amine metal borohydrides have been reviewed in this article. The pyrolysis and hydrogen absorption conditions of the hydrogen storage materials have been summarized, especially the improvements of the hydrogen storage materials. Furthermore, the challenges of the hydrogen storage materials have been pointed out. Potential hydrogen storage materials and possible modification methods have also been presented and discussed.

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“…In physical-based hydrogen storage systems, hydrogen can be stored in three categories: compressed gas, cold/cryo compressed and liquid hydrogen [7,51,52]. In material-based hydrogen storage systems, the hydrogen stored in various categories such as adsorbent (e.g., metal-organic framework) [53][54][55], liquid organic [56][57][58] (e.g., BN-methyl cyclopentane), interstitial hydride (e.g., LaNi 5 H 6 ) [59,60], elemental hydride (e.g., MgH 2 ) [61][62][63][64], complex hydride (e.g., NaAlH 4 ) [65][66][67] and chemical hydrogen (NH 3 BH 3 ) [7,51,[68][69][70] (Hydrogen Storage, Hydrogen and Fuel Cell Technologies Office, US-DOE-https://www.energy.gov/eere/ fuelcells/hydrogen-storage, accessed on 2 April 2022). Pressurized hydrogen gas is commonly used in various applications in the present scenario.…”

Section: Significance Of Magnesium Hydride and Benefits Of Polymeric ...mentioning

confidence: 99%

Impact of Polymers on Magnesium-Based Hydrogen Storage Systems

Thangarasu

2022

Polymers

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In the present scenario, much importance has been provided to hydrogen energy systems (HES) in the energy sector because of their clean and green behavior during utilization. The developments of novel techniques and materials have focused on overcoming the practical difficulties in the HES (production, storage and utilization). Comparatively, considerable attention needs to be provided in the hydrogen storage systems (HSS) because of physical-based storage (compressed gas, cold/cryo compressed and liquid) issues such as low gravimetric/volumetric density, storage conditions/parameters and safety. In material-based HSS, a high amount of hydrogen can be effectively stored in materials via physical or chemical bonds. In different hydride materials, Mg-based hydrides (Mg–H) showed considerable benefits such as low density, hydrogen uptake and reversibility. However, the inferior sorption kinetics and severe oxidation/contamination at exposure to air limit its benefits. There are numerous kinds of efforts, like the inclusion of catalysts that have been made for Mg–H to alter the thermodynamic-related issues. Still, those efforts do not overcome the oxidation/contamination-related issues. The developments of Mg–H encapsulated by gas-selective polymers can effectively and positively influence hydrogen sorption kinetics and prevent the Mg–H from contaminating (air and moisture). In this review, the impact of different polymers (carboxymethyl cellulose, polystyrene, polyimide, polypyrrole, polyvinylpyrrolidone, polyvinylidene fluoride, polymethylpentene, and poly(methyl methacrylate)) with Mg–H systems has been systematically reviewed. In polymer-encapsulated Mg–H, the polymers act as a barrier for the reaction between Mg–H and O2/H2O, selectively allowing the H2 gas and preventing the aggregation of hydride nanoparticles. Thus, the H2 uptake amount and sorption kinetics improved considerably in Mg–H.

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Solid-Phase Hydrogen Storage Based on NH₃BH₃-SiO₂ Nanocomposite for Thermolysis

Cited by 6 publications

References 37 publications

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

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

A Review of High Density Solid Hydrogen Storage Materials by Pyrolysis for Promising Mobile Applications

Impact of Polymers on Magnesium-Based Hydrogen Storage Systems

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