title: High methane storage capacity in aluminum metal-organic frameworks.
abstract: The use of porous materials to store natural gas in vehicles requires large amounts of methane per unit of volume. Here we report the synthesis, crystal structure and methane adsorption properties of two new aluminum metal-organic frameworks, MOF-519 and MOF-520. Both materials exhibit permanent porosity and high methane volumetric storage capacity: MOF-519 has a volumetric capacity of 200 and 279 cm(3) cm(-3) at 298 K and 35 and 80 bar, respectively, and MOF-520 has a volumetric capacity of 162 and 231 cm(3) cm(-3) under the same conditions. Furthermore, MOF-519 exhibits an exceptional working capacity, being able to deliver a large amount of methane at pressures between 5 and 35 bar, 151 cm(3) cm(-3), and between 5 and 80 bar, 230 cm(3) cm(-3).
authors.affiliation: Department of Chemistry, University of California-Berkeley , Materials Sciences Division, Lawrence Berkeley National Laboratory , and Kavli Energy NanoSciences Institute at Berkeley, University of California-Berkeley , Berkeley, California 94720, United States.
authors.forename: Felipe
authors.initials: F
authors.lastname: Gándara
authors.forename: Hiroyasu
authors.initials: H
authors.lastname: Furukawa
authors.forename: Seungkyu
authors.initials: S
authors.lastname: Lee
authors.forename: Omar M
authors.initials: OM
authors.lastname: Yaghi
mesh_terms: D000535:Aluminum / Q000737:chemistry*; D008697:Methane / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D000535:Aluminum; D008697:Methane