Hydrogen storage capabilities of ionothermally synthesized covalent triazine frameworks (CTFs)

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dc.authoridSonmez, Turgut/0000-0002-3927-2551
dc.authoridKaskun Ergani, Songul/0000-0002-2760-2218
dc.authoridUecker, Jan/0000-0002-4261-4508
dc.contributor.authorErgani, Songul Kaskun
dc.contributor.authorSonmez, Turgut
dc.contributor.authorUecker, Jan
dc.contributor.authorArpa, Beyza
dc.contributor.authorPalkovits, Regina
dc.date.accessioned2024-09-29T15:57:20Z
dc.date.available2024-09-29T15:57:20Z
dc.date.issued2023
dc.departmentKarabük Üniversitesien_US
dc.description.abstractCovalent triazine frameworks (CTFs) represent an attractive new type of porous organic compounds demonstrating promising stability, nontoxicity, nitrogen functionalities and adjustable porosity. They have been greatly investigated in various applications; however, the hydrogen storage capacities of CTFs have been poorly described so far. Here, we present hydrogen storage capacities of a series of covalent triazine frameworks based on four different applied monomers (DCP, DCBP, mDCB and pDCB) synthesized via classical ionothermal route (ZnCl2, 400/600 degrees C). Among the synthesized CTFs, DCP shows the highest hydrogen storage capacity of 4.02 wt% at 20 bar, almost two times higher compared to the lowest value of 2.43 wt% for CTF DCBP. Furthermore, the CTF DCP outperforms with a H-2 uptake of 2.95 wt% at 1 bar pressure and 77 K state-of-the-art 2D porous organic polymers and shows very high uptake capability within the reported porous polymer materials. The high hydrogen storage capability of DCP is correlated to the high nitrogen (N) content of 20.4 wt%, high fraction of pyridinic N-sites (50.3%), the largest defect structure, highest crystallinity and microporosity among the synthesized CTFs. The specific surface area (SSA) and the total pore volume (TPV) seem to not have an influential impact on the H(2 )storage capacity as the CTF DCP exhibits the highest H-2 storage capacity with a SSA of 1737 m(2) g(-1) and a TPV of 0.9 cm(3) g(-1), the lowest values among the CTFs.(c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipCluster of Excellence Fuel Science Center [EXC 2186, 390919832]; Scientific and Technological Research Council of Turkey (TUBITAK), Republic of Turkey; Karabuk University Scientific Research Projects Coordination Unit [FYL-2020-2364]en_US
dc.description.sponsorshipThis work was supported by the Cluster of Excellence Fuel Science Center (EXC 2186, ID: 390919832) funded by the Excellence Initiative by the German federal and state governments to promote science and research at German universities. TS acknowledge The Scientific and Technological Research Council of Turkey (TUBITAK), Republic of Turkey for the postdoctoral fellowship. SKE and BA acknowledge Karabuk University Scientific Research Projects Coordination Unit for partly supporting this work by Project No. FYL-2020-2364. Authors also thank to Sabina Alexandra Nicolae and Timo Bisswanger for helping us to obtain XPS and Raman measurements, respectively.en_US
dc.identifier.doi10.1016/j.ijhydene.2023.05.168
dc.identifier.endpage34163en_US
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.issue87en_US
dc.identifier.scopus2-s2.0-85160833517en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage34154en_US
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2023.05.168
dc.identifier.urihttps://hdl.handle.net/20.500.14619/4744
dc.identifier.volume48en_US
dc.identifier.wosWOS:001086145200001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofInternational Journal of Hydrogen Energyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCovalent triazine frameworksen_US
dc.subjectHydrogen storageen_US
dc.subjectPhysisorptionen_US
dc.titleHydrogen storage capabilities of ionothermally synthesized covalent triazine frameworks (CTFs)en_US
dc.typeArticleen_US

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