Montes-Andres, HelenaLeo, PedroOrcajo, GiselaRodríguez-Dieguez, AntonioChoquesillo-Lazarte, DuaneMartos, CarmenBotas, Juan ÁngelMartínez, FernandoCalleja, Guillermo2024-11-152024-11-152019-01-18H. Montes-Andrés, P. Leo, G. Orcajo, A. Rodríguez-Diéguez, D. Choquesillo-Lazarte, C. Martos, J. Á. Botas, F. Martínez, G. Calleja, ChemPhysChem 2019, 20, 1334.1439-4235 (print)1439-7641 (online)https://hdl.handle.net/10115/41645A novel URJC-3 material based on cobalt and 5,5′-(diazene-1,2-diyl)diisophthalate ligand, containing Lewis acid and basic sites, has been synthesized under solvothermal conditions. Compound URJC-3, with polyhedral morphology, crystallizes in the tetragonal and P43212 space group, exhibiting a three-dimensional structure with small channels along a and b axes. This material was fully characterized, and its hydrogen adsorption properties were estimated for a wide range of temperatures (77–298 K) and pressures (1–170 bar). The hydrogen storage capacity of URJC-3 is quite high in relation to its moderate surface area, which is probably due to the confinement effect of hydrogen molecules inside its reduced pores of 6 Å, which is close the ionic radii of hydrogen molecules. The storage capacity of this material is not only higher than that of active carbon and purified single-walled carbon nanotubes, but also surpasses the gravimetric hydrogen uptake of most MOF materials.engMOFURJC-3acid-basehydrogenadsorptioninfo:eu-repo/semantics/article10.1002/cphc.201801151info:eu-repo/semantics/openAccess