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Assessment of hydrogen storage by physisorption in porous materials

  • As a basis for the evaluation of hydrogen storage by physisorption, adsorption isotherms of H2 were experimentally determined for several porous materials at 77 K and 298 K at pressures up to 15 MPa. Activated carbons and MOFs were studied as the most promising materials for this purpose. A noble focus was given on how to determine whether a material is feasible for hydrogen storage or not,As a basis for the evaluation of hydrogen storage by physisorption, adsorption isotherms of H2 were experimentally determined for several porous materials at 77 K and 298 K at pressures up to 15 MPa. Activated carbons and MOFs were studied as the most promising materials for this purpose. A noble focus was given on how to determine whether a material is feasible for hydrogen storage or not, dealing with an assessment method and the pitfalls and problems of determining the viability. For a quantitative evaluation of the feasibility of sorptive hydrogen storage in a general analysis, it is suggested to compare the stored amount in a theoretical tank filled with adsorbents to the amount of hydrogen stored in the same tank without adsorbents. According to our results, an “ideal” sorbent for hydrogen storage at 77 K is calculated to exhibit a specific surface area of >2580 m2 g−1 and a micropore volume of >1.58 cm3 g−1.show moreshow less

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Author:Moises Bastos-Neto, Christin Patzschke, Marcus Lange, Jens MöllmerGND, Andreas Möller, Sven Fichtner, Christian Schrage, Daniel Lässig, Jörg Lincke, Reiner StaudtGND, Harald Krautscheid, Roger Gläser
Creating Corporation:Royal Society of Chemistry
Year of Publication:2012
Language:English
GND Keyword:Adsorption; Porosität; Wasserstoffspeicherung
Parent Title (English):Energy & Environmental Science
Volume:5
Issue:8
ISSN:1754-5692
First Page:8294
Last Page:8303
Document Type:Article (reviewed)
Open Access:Frei zugänglich
Institutes:Bibliografie
Release Date:2019/10/24
Licence (German):License LogoEs gilt das UrhG
DOI:https://doi.org/10.1039/c2ee22037g