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Properties of adsorbed supercritical methane film in nanopores

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dc.contributor.author Romanos, Jimmy
dc.contributor.author Abou Dargham, Sara
dc.contributor.author Roukos, Roy
dc.contributor.author Pfeifer, Peter
dc.date.accessioned 2019-10-10T08:34:27Z
dc.date.available 2019-10-10T08:34:27Z
dc.date.copyright 2018 en_US
dc.identifier.issn 2158-3226 en_US
dc.identifier.uri http://hdl.handle.net/10725/11405
dc.description.abstract Adsorbed natural gas technology is an efficient technology for storing natural gas at low pressure and room temperature. This work investigates the properties of the adsorbed methane film in nanopores where methane is adsorbed by strong van der Waals forces in pores of few molecular diameter as a high-density fluid. BET surface area, porosity, and pore size distribution were measured using sub-critical nitrogen adsorption. The adsorbed film thickness, the film density, specific surface area, and methane average binding energy were extracted from a single supercritical methane adsorption isotherm using Langmuir and Ono-Kondo models. In addition, this method does not require a conversion between gravimetric excess adsorption and absolute adsorption. The adsorbed film thickness is between 4.2 and 4.4 Å and the density of the adsorbed film at maximum capacity is between 302 and 340 g/L. Specific surface areas obtained from supercritical isotherms are consistent with BET surface areas from subcritical nitrogen adsorption. The binding energies obtained from the two models are compared to the ones obtained from Clausius-Clapeyron method. en_US
dc.language.iso en en_US
dc.title Properties of adsorbed supercritical methane film in nanopores 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 AIP Advances en_US
dc.journal.volume 8 en_US
dc.journal.issue 12 en_US
dc.article.pages 125011 en_US
dc.keywords Nanomaterials en_US
dc.keywords Fuels en_US
dc.keywords Carbon based materials en_US
dc.keywords Crystalline solids en_US
dc.keywords Adsorption isotherm en_US
dc.keywords Clausius-Clapeyron relation en_US
dc.identifier.doi https://doi.org/10.1063/1.5074086 en_US
dc.identifier.ctation Romanos, J., Abou Dargham, S., Roukos, R., & Pfeifer, P. (2018). Properties of adsorbed supercritical methane film in nanopores. AIP Advances, 8(12), 125011. 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://aip.scitation.org/doi/full/10.1063/1.5074086 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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