61315 20200221144310.0 doi 10.1039/C6CP01950A sideral 94821 ART-2016-94821 eng Jagiello, J. Structural analysis of IPC zeolites and related materials using positron annihilation spectroscopy and high-resolution argon adsorption 2016 Access copy available to the general public Unrestricted The advanced investigation of pore networks of isoreticular zeolites and mesoporous materials related to the IPC family was performed using high-resolution argon adsorption experiments coupled with the development of a state-of-the-art non-linear density functional theory approach. The optimization of a kernel for model sorption isotherms for materials possessing the same layer structure, differing only in the interlayer connectivity (e.g. oxygen bridges, single- or double- four-ring building units, mesoscale pillars etc.) revealed remarkable differences in their porous systems. Using high- resolution adsorption data, the bimodal pore size distribution consistent with crystallographic data for IPC-6, IPC-7 and UTL samples is shown for the first time. A dynamic assessment by positron annihilation lifetime spectroscopy (PALS) provided complementary insights, simply distinguishing the enhanced accessibility of the pore network in samples incorporating mesoscale pillars and revealing the presence of a certain fraction of micropores undetected by gas sorption. Nonetheless, subtle differences in the pore size could not be discriminated based on the widely-applied Tao-Eldrup model. The combination of both methods can be useful for the advanced characterization of microporous, mesoporous and hierarchical materials. info:eu-repo/grantAgreement/EC/FP7/312483/EU/Enabling Science and Technology through European Electron Microscopy/ESTEEM 2 info:eu-repo/semantics/openAccess by-nc http://creativecommons.org/licenses/by-nc/3.0/es/ 4.123 2016 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL 6 / 35 = 0.171 2016 Q1 T1 CHEMISTRY, PHYSICAL 38 / 145 = 0.262 2016 Q2 T1 1.685 2016 Physics and Astronomy (miscellaneous) 2016 Q1 Physical and Theoretical Chemistry 2016 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Sterling, M. Eliášová, P. Opanasenko, M. Zukal, A. Morris, R. (orcid)0000-0001-7702-9619 Navarro, M. (orcid)0000-0002-5229-2717 Mayoral, A. Crivelli, P. Warringham, R. Mitchell, S. Perez-Ramirez, J. Cejka, J. 18 (2016), 15269-15277 Phys. chem. chem. phys. Physical chemistry chemical physics. 1463-9076 1915988 http://zaguan.unizar.es/record/61315/files/texto_completo.pdf Postprint 70604 http://zaguan.unizar.es/record/61315/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:61315 articulos driver 2020-02-21-13:36:48 ARTICLE