Flexible, Water-Resistant and Air-Stable LiBH4 Nanoparticles Loaded Melamine Foam With Improved Dehydrogenation

Fan, Yanping; Chen, Dandan; Yuan, Zhenluo; Chen, Qiang; Fan, Guangyin; Zhao, Dan; Liu, Baozhong

doi:10.3389/fchem.2020.00045

Cited by 10 publications

(5 citation statements)

References 27 publications

(31 reference statements)

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“…Before proceeding with calculations, we prune the dataset through manual inspection. We exclude LiBH 4 since it is a deliquescent solid-state material (melting point of 275 °C) at ambient conditions and is highly sensitive to water and oxygen 30 . We also remove NaCN because of its toxic and corrosive properties and its danger to the environment.…”

Section: Resultsmentioning

confidence: 99%

Identification of two-dimensional layered dielectrics from first principles

et al. 2021

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To realize effective van der Waals (vdW) transistors, vdW dielectrics are needed in addition to vdW channel materials. We study the dielectric properties of 32 exfoliable vdW materials using first principles methods. We calculate the static and optical dielectric constants and discover a large out-of-plane permittivity in GeClF, PbClF, LaOBr, and LaOCl, while the in-plane permittivity is high in BiOCl, PbClF, and TlF. To assess their potential as gate dielectrics, we calculate the band gap and electron affinity, and estimate the leakage current through the candidate dielectrics. We discover six monolayer dielectrics that promise to outperform bulk HfO2: HoOI, LaOBr, LaOCl, LaOI, SrI2, and YOBr with low leakage current and low equivalent oxide thickness. Of these, LaOBr and LaOCl are the most promising and our findings motivate the growth and exfoliation of rare-earth oxyhalides for their use as vdW dielectrics.

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Section: Resultsmentioning

confidence: 99%

Identification of two-dimensional layered dielectrics from first principles

et al. 2021

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“…PMMA has been considered one of the efficient host, encapsulation or composite polymer materials for different kinds of solid-state hydrogen storage systems such as intermetallic hydrides, elemental hydrides, complex hydrides and chemical hydrides [124,[147][148][149][150][151][152]. In the past two decades, the effectiveness of PMMA in Mg-based hydrogen storage has been proved by different approaches (such as the one-pot reduction process, laser ablation, mechanical milling and in situ solution reduction method), and it has shown numerous advantages because of its excellent functional properties [153][154][155].…”

Section: Poly(methyl Methacrylate)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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“…Plerdsranoy et al [154] increased the thermal stability of a scaffold based on (methyl methacrylate)-co-butyl methacrylate through the addition of MWCNT; however, sluggish kinetics were presented, probably due to poor hydrogen diffusion. Fan et al [155] synthesized an air-stable composite made of melamine foam and LiBH 4 nanoparticles. The composite presented hydrophobic behavior and it released 11 wt.…”

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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Flexible, Water-Resistant and Air-Stable LiBH4 Nanoparticles Loaded Melamine Foam With Improved Dehydrogenation

Cited by 10 publications

References 27 publications

Identification of two-dimensional layered dielectrics from first principles

Identification of two-dimensional layered dielectrics from first principles

Impact of Polymers on Magnesium-Based Hydrogen Storage Systems

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

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