Adsorption of molecular hydrogen on coordinatively unsaturated Ni(II) sites in a nanoporous hybrid material.
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.
Forster
Paul M
PM
Mineral Physics Institute, 255 Earth and Space Sciences Building, Stony Brook University, Stony Brook, NY 11794-2100, USA.
Eckert
Juergen
J
Heiken
Brandon D
BD
Parise
John B
JB
Yoon
Ji Woong
JW
Jhung
Sung Hwa
SH
Chang
Jong-San
JS
Cheetham
Anthony K
AK
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
D009942:Organometallic Compounds; D009532:Nickel; D006859:Hydrogen; D012964:Sodium