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Engineered porous carbon for high volumetric methane storage

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dc.contributor.author Romanos, J.
dc.contributor.author Sweany, S.
dc.contributor.author Rash, T.
dc.contributor.author Frilej, L.
dc.contributor.author Kuchta, B.
dc.contributor.author Idrobo, J.C.
dc.contributor.author Pfeifer, P.
dc.date.accessioned 2019-10-10T12:00:17Z
dc.date.available 2019-10-10T12:00:17Z
dc.date.copyright 2014 en_US
dc.identifier.issn 2048-4038 en_US
dc.identifier.uri http://hdl.handle.net/10725/11413
dc.description.abstract This paper covers the optimization of methane volumetric storage capacity by controlling the sub-nanometre (<1 nm) and supra-nanometre (1–5 nm) pore volumes. Nanospace engineering of KOH activated carbon generates an ideal structure for methane storage in which gas molecules are adsorbed as a high-density fluid by strong van der Waals forces into pores that are a few molecules in diameter. High specific surface areas, porosities, sub-nanometre (<1 nm) and supra-nanometre (1–5 nm) pore volumes are quantitatively selected by controlling the degree of carbon consumption and metallic potassium intercalation into the carbon lattice during the activation process. The formation of tuneable sub-nanometre and supra-nanometre pores is validated by sub-critical nitrogen adsorption. Aberration-corrected scanning transmission electron microscopy data show the atomic structure of high-surface-area activated carbon (2600 m2/g). While high surface area and high porosity are optimal for gravimetric methane storage, the results indicate that an exclusive sub-nanometre region, a low porosity and an acceptable surface area (approximately 2000 m2/g) are ideal for methane volumetric storage, storing 120 g CH4/l (184 vol/vol) at 35 bar and room temperature (22 °C). High-pressure methane isotherms up to 150 bar at 30, −25 and −50 °C on optimal activated carbons are presented. Methane volumetric storage capacity at 35 bar reaches 176 g/l (269 vol/vol) and 202 g/l (309 vol/vol) at −25 and −50 °C, respectively. en_US
dc.language.iso en en_US
dc.title Engineered porous carbon for high volumetric methane storage en_US
dc.type Article en_US
dc.description.version Published en_US
dc.author.school SAS en_US
dc.author.idnumber 201306300 en_US
dc.author.department Natural Sciences en_US
dc.description.embargo N/A en_US
dc.relation.journal Adsorption Science & Technology en_US
dc.journal.volume 32 en_US
dc.journal.issue 8 en_US
dc.article.pages 681-691 en_US
dc.identifier.doi https://doi.org/10.1260/0263-6174.32.8.681 en_US
dc.identifier.ctation Romanos, J., Sweany, S., Rash, T., Firlej, L., Kuchta, B., Idrobo, J. C., & Pfeifer, P. (2014). Engineered porous carbon for high volumetric methane storage. Adsorption Science & Technology, 32(8), 681-691. en_US
dc.author.email jimmy.romanos@lau.edu.lb en_US
dc.identifier.tou http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php en_US
dc.identifier.url https://journals.sagepub.com/doi/abs/10.1260/0263-6174.32.8.681 en_US
dc.orcid.id https://orcid.org/0000-0002-5408-1657 en_US
dc.author.affiliation Lebanese American University en_US


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