Preparation of hollow glass microspheres from sol–gel derived glass for application in hydrogen gas storage

Schmitt, Melodie L.; Shelby, J. E.; Hall, Matthew M.

doi:10.1016/j.jnoncrysol.2005.11.057

Cited by 50 publications

(13 citation statements)

References 9 publications

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“…Furthermore, hydrogen release at sufficient rates, high temperatures are required that exceed about 250 8C (depending on the exact material parameters and sizes), which creates additional problems during use. Although doping of glasses has been proposed to allow infrared-radiation-enhanced diffusion, [149] the overall disadvantages, such as low volumetric capacity and kinetics and the necessity to handle solids, will probably prevent technical applications of such systems.…”

Section: Reforming Of Methanolmentioning

confidence: 99%

Chemical and Physical Solutions for Hydrogen Storage

Eberle¹,

2009

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Hydrogen is a promising energy carrier in future energy systems. However, storage of hydrogen is a substantial challenge, especially for applications in vehicles with fuel cells that use proton-exchange membranes (PEMs). Different methods for hydrogen storage are discussed, including high-pressure and cryogenic-liquid storage, adsorptive storage on high-surface-area adsorbents, chemical storage in metal hydrides and complex hydrides, and storage in boranes. For the latter chemical solutions, reversible options and hydrolytic release of hydrogen with off-board regeneration are both possible. Reforming of liquid hydrogen-containing compounds is also a possible means of hydrogen generation. The advantages and disadvantages of the different systems are compared.

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Section: Reforming Of Methanolmentioning

confidence: 99%

Chemical and Physical Solutions for Hydrogen Storage

Eberle¹,

2009

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“…Schließlich sind für ausreichende Geschwindigkeiten bei der Freisetzung des Wasserstoffs Temperaturen über 250 °C (abhängig von den genauen Materialparametern und Größen) notwendig, was während der Nutzung zusätzliche Probleme verursacht. Ein Vorschlag lautete, die Gläser zu dotieren, um eine Verbesserung der Diffusion durch IR‐Bestrahlung zu ermöglichen 149. Wahrscheinlich aber werden die Nachteile, wie niedrige volumetrische Speicherkapazität, Kinetik und die Notwendigkeit, Feststoffe zu handhaben, den Einsatz solcher Systeme in der Praxis verhindern.…”

Section: Verfügbare Speichertechnikenunclassified

Chemische und physikalische Lösungen für die Speicherung von Wasserstoff

Eberle¹,

2009

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Wasserstoff ist ein vielversprechender Energieträger für zukünftige Energiesysteme, allerdings ist seine Speicherung eine große Herausforderung, besonders beim Einsatz in Fahrzeugen mit Polymer‐Elektrolyt‐Membran‐Brennstoffzellen. Verschiedene Methoden der Wasserstoffspeicherung werden diskutiert, einschließlich der Hochdruck‐ und Flüssigwasserstoffspeicherung, der Speicherung durch Adsorption an Materialien mit großen Oberflächen, der chemischen Speicherung in Metallhydriden und komplexen Hydriden oder der Speicherung in Borwasserstoffverbindungen. Für die letzteren Lösungen sind sowohl reversible Methoden als auch die hydrolytische Freisetzung des Wasserstoffs mit späterer Wiederaufbereitung möglich. Ebenso ist die Reformierung von flüssigen, wasserstoffhaltigen Verbindungen ein möglicher Weg zur Wasserstofferzeugung. Die Vor‐ und Nachteile der verschiedenen Systeme werden einander gegenübergestellt.

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“…Powder insulation uses hollow glass microspheres (HGMs), which is a new type of high-performance non-metal powder insulation material with the characteristics of lightweight, low thermal conductivity, high mechanical strength, and low dielectric constant. The inner particle diameter of HGMs is usually tens to hundreds of micrometers, and the internal gas convection can be neglected, [30][31][32] so the sensitivity to vacuum changes is low, and even when the vacuum is broken, it can still maintain excellent insulation performance. [33][34][35] However, considering that the ratio of sensible heat (from the boiling point to room temperature 300 K) to latent heat is as high as 7.82 when the storage pressure is 0.1 MPa, the ratio continues to increase with the increase in storage pressure, resulting in a large amount of cold energy wasted when low-temperature hydrogen is discharged.…”

Section: Doi: 101002/ente202000591mentioning

confidence: 99%

A Novel Composite Insulation System of Hollow Glass Microspheres and Multilayer Insulation with Self‐Evaporating Vapor Cooled Shield for Liquid Hydrogen Storage

Yang

et al. 2020

Energy Tech

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The efficient storage method of hydrogen energy is a major concern in its practical application. Compared with other hydrogen storage methods, liquid hydrogen (LH2) storage has the advantages of high energy storage density and low storage pressure. However, the temperature of LH2 is significantly lower than room temperature, and heat leakage causes it to evaporate continuously. Thus, an efficient thermal insulation technology is a key to LH2 storage. Herein, based on the traditional multilayer insulation (MLI), a novel insulation system combining hollow glass microspheres (HGMs) that is not sensitive to vacuum with self‐evaporating vapor cooled shield (VCS) that can recover hydrogen cold‐energy is introduced and analyzed. Based on the layer‐by‐layer method, a thermodynamic calculation model is established, and related experimental verification is completed. The results show that the heat leakage of the proposed insulation system is decreased by 45% under high vacuum (10−3 Pa) and 81% under low vacuum (1 Pa) compared with the traditional MLI. The influences of the VCS position, LH2 storage pressure, hot boundary temperature, and vacuum on the thermal insulation performance of the composite thermal insulation system are also analyzed.

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Preparation of hollow glass microspheres from sol–gel derived glass for application in hydrogen gas storage

Cited by 50 publications

References 9 publications

Chemical and Physical Solutions for Hydrogen Storage

Chemical and Physical Solutions for Hydrogen Storage

Chemische und physikalische Lösungen für die Speicherung von Wasserstoff

A Novel Composite Insulation System of Hollow Glass Microspheres and Multilayer Insulation with Self‐Evaporating Vapor Cooled Shield for Liquid Hydrogen Storage

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