title: Adsorption of molecular hydrogen on coordinatively unsaturated Ni(II) sites in a nanoporous hybrid material.
abstract: A porous hybrid inorganic/organic material, NaNi3(OH)(SIP)2 [SIP = 5-sulfoisophthalate][1], is shown to strongly bind molecular hydrogen at coordinatively unsaturated metal sites. A combination of H2 sorption isotherms, temperature programmed desorption, and inelastic neutron scattering spectroscopy show the existence of a considerable number of such strong binding sites in [1] along with other sites where hydrogen is more weakly physisorbed. The overall capacity for hydrogen of this material as well as the much stronger binding of hydrogen than in typical porous material represent an important step toward a possible utilization of porous media for hydrogen storage.
authors.affiliation: Mineral Physics Institute, 255 Earth and Space Sciences Building, Stony Brook University, Stony Brook, NY 11794-2100, USA.
authors.forename: Paul M
authors.initials: PM
authors.lastname: Forster
authors.forename: Juergen
authors.initials: J
authors.lastname: Eckert
authors.forename: Brandon D
authors.initials: BD
authors.lastname: Heiken
authors.forename: John B
authors.initials: JB
authors.lastname: Parise
authors.forename: Ji Woong
authors.initials: JW
authors.lastname: Yoon
authors.forename: Sung Hwa
authors.initials: SH
authors.lastname: Jhung
authors.forename: Jong-San
authors.initials: JS
authors.lastname: Chang
authors.forename: Anthony K
authors.initials: AK
authors.lastname: Cheetham
mesh_terms: D000327:Adsorption; D001665:Binding Sites; D018360:Crystallography, X-Ray; D006859:Hydrogen / Q000737:chemistry*; D008958:Models, Molecular; D049329:Nanostructures / Q000737:chemistry*; D033363:Neutron Diffraction; D009532:Nickel / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D016062:Porosity; D012964:Sodium / Q000737:chemistry; D013499:Surface Properties; D013696:Temperature
chemical_list: D009942:Organometallic Compounds; D009532:Nickel; D006859:Hydrogen; D012964:Sodium