期刊
ENERGY & ENVIRONMENTAL SCIENCE
卷 5, 期 8, 页码 8294-8303出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2ee22037g
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资金
- CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico - Brazil)
- DAAD (Deutscher Akademischer Austausch Dienst - Germany)
- CarboTech AC GmbH
As a basis for the evaluation of hydrogen storage by physisorption, adsorption isotherms of H-2 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 m(2) g(-1) and a micropore volume of >1.58 cm(3) g(-1).
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