Modification of a commercial activated carbon with nitrogen and boron: Hydrogen storage application

dc.contributor.authorMorande, Arturo
dc.contributor.authorLillo, Patricio
dc.contributor.authorBlanco, Elodie
dc.contributor.authorPazo, Cesar
dc.contributor.authorBelen Dongil, Ana
dc.contributor.authorZarate, Ximena
dc.contributor.authorSaavedra-Torres, Mario
dc.contributor.authorSchott, Eduardo
dc.contributor.authorCanales, Roberto
dc.contributor.authorVidela, Alvaro
dc.contributor.authorEscalona, Nestor
dc.date.accessioned2025-01-20T20:14:50Z
dc.date.available2025-01-20T20:14:50Z
dc.date.issued2023
dc.description.abstractThe present study evaluates the effect of heteroatom doping (N and B) and thermal treatment modification of activated carbon, in different sequences over hydrogen storage capacity. All the materials were characterized by N2-physisorption, XRD, TPD, and XPS. H2 adsorption was measured at-196 degrees C and correlated with physico-chemical properties, while a density-functional theory model was employed to analyze the hydrogen adsorp-tion. Results have shown that there is an effect of the modification order on the storage capacity, which was related to increments of the specific surface area or the nature of the functional groups. An optimum nitrogen doping temperature was detected at 500 degrees C and was associated with the presence of pyridone groups. This sample had the highest hydrogen capacity ca. 2.34 % at 0.93 bar. Such value was extrapolated to 7.86 wt% at 30 bar using the Dubinin-Astakhov adsorption model, making it a promising material for hydrogen storage.
dc.description.funderANID Chile
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.est.2023.107193
dc.identifier.eissn2352-1538
dc.identifier.issn2352-152X
dc.identifier.urihttps://doi.org/10.1016/j.est.2023.107193
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/92223
dc.identifier.wosidWOS:000969952600001
dc.language.isoen
dc.revistaJournal of energy storage
dc.rightsacceso restringido
dc.subjectHydrogen adsorption
dc.subjectActivated carbon
dc.subjectNitrogen
dc.subjectBoron
dc.subjectDoping
dc.titleModification of a commercial activated carbon with nitrogen and boron: Hydrogen storage application
dc.typeartículo
dc.volumen64
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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