Cobalt loaded organic acid modified kaolin clay for the enhanced catalytic activity of hydrogen release via hydrolysis of sodium borohydride

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dc.authoridEYGi, MUSTAFA SALiH/0000-0001-9467-9840
dc.contributor.authorSaka, Cafer
dc.contributor.authorEygi, Mustafa Salih
dc.contributor.authorBalbay, Asimm
dc.date.accessioned2024-12-24T19:27:15Z
dc.date.available2024-12-24T19:27:15Z
dc.date.issued2021
dc.departmentSiirt Üniversitesi
dc.description.abstractInorganic acids such as hydrochloric acid (HCl), nitric acid (HNO3) and sulphuric acid (H2SO4) are generally used in the acid modification of clays. Here, CoB catalyst was synthesized on the acetic acid-activated kaolin support material (CH3COOH -kaolin- CoB) with an alternative approach. This prepared catalyst, firstly, was used to catalyze the hydrolysis of NaBH4 (NaBH4-HR). The structure of the raw kaolin, kaolin-CH3COOH, and CH3COOH-kaolin-CoB samples were characterized by X-ray diffraction spectroscopy (XRD), Fourier transforms infrared spectroscopy (FTIR), scanning electron microscope (SEM), and nitrogen adsorption. At the same time, this catalyst performance was examined by Co loading, NaBH4 concentration, NaOH concentration, temperature and reusability parameters. The end times of this hydrolysis reaction using raw kaolin-CoB and CH3COOH-kaolin-CoB were found to be approximately 140 and 245 min, respectively. The maximum hydrogen generation rates (HGRs) obtained at temperatures 30 degrees C and 50 degrees C were 1533 and 3400 mL/min/g(catalyst), respectively. At the same time, the activation energy was found to be 49.41 kJ/mol. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
dc.description.sponsorshipSiirt University [2017-SIUSYO-51]
dc.description.sponsorshipThis study was supported by the Siirt University with 2017-SIUSYO-51.
dc.identifier.doi10.1016/j.ijhydene.2020.10.201
dc.identifier.endpage3886
dc.identifier.issn0360-3199
dc.identifier.issn1879-3487
dc.identifier.issue5
dc.identifier.scopus2-s2.0-85098649592
dc.identifier.scopusqualityQ1
dc.identifier.startpage3876
dc.identifier.urihttps://doi.org/10.1016/j.ijhydene.2020.10.201
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6564
dc.identifier.volume46
dc.identifier.wosWOS:000607367100010
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofInternational Journal of Hydrogen Energy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectKaolin
dc.subjectAcetic acid
dc.subjectActivation
dc.subjectSupport material
dc.subjectCobalt-boron
dc.subjectHydrogen
dc.titleCobalt loaded organic acid modified kaolin clay for the enhanced catalytic activity of hydrogen release via hydrolysis of sodium borohydride
dc.typeArticle

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