RT Journal Article
T1 Identifying zeolite topologies for Storage and release of hydrogen
A1 Martin Calvo, Ana
A1 Gutiérrez Sevillano, Juan José
A1 Matito Martos, Ismael
A1 Vlugt, Thijs J. H.
A1 Calero, Sofía
K1 Hydrogen
K1 Molecular simulation
K1 Adsorption
K1 Zeolites
AB We present a molecular simulation study on the most suitable zeolite topologies for hydrogen adsorption and storage. We combine saturation capacities, pore size distributions, preferential adsorption sites and curves of heat of adsorption of hydrogen as function of temperature (we call them HoA-curve) to identify the optimal zeolites for storage and release of hydrogen. Then we analyze the relation between the shape of the HoA-curve and the topology of the materials. We also evaluate the influence of incorporating Feynman-Hibbs effect on the adsorption behavior. We can stablish different shapes on the HoA-curve depending on the uniformity or not of the pores of the zeolites. Parabola-like curves are observed in structures with one or similarly sized pores, while deviations from the parabola are found at low temperature for structures combining large and small pores. The Feynman-Hibbs quantum correction reduces the adsorption capacity of the materials affecting not only the saturation capacity but also the shape of the isotherms. From our results the zeolites studied in this work can be considered potential candidates for the storage and release of hydrogen.
PB American Chemical Society
YR 2018
FD 2018-05-18
LK https://hdl.handle.net/10433/19976
UL https://hdl.handle.net/10433/19976
LA en
NO J. Phys. Chem. C 2018, 122, 23, 12485–12493
NO This work has been supported by the Spanish “Ministerio de Economia y Competitividad” (CTQ2016-80206-P) and by the “Junta de Andalucia” (P12-FQM-1851). JJ.G-S thanks the Research Council of Ghent University for his BOF-postdoctoral fellowship. I.M-M acknowledges the Spanish “Ministerio de Educación Cultura y Deporte” for his predoctoral fellowship (FPU13/00281). TJH.V is grateful to NWO-CW for his VICI grant.
NO This document is the Accepted Manuscript version of a Published Work that appeared in final form in J. Phys. Chem. C 2018, 122, 23, 12485–12493Publication Date:May 18, 2018https://doi.org/10.1021/acs.jpcc.8b02263Copyright © 2018 American Chemical Society
NO Departamento de Sistemas Físicos, Químicos y Naturales
DS RIO
RD May 9, 2026