Activated carbon derived from tea waste: A promising supporting material for metal nanoparticles used as catalysts in hydrolysis of ammonia borane

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dc.authoridAkbayrak, Serdar/0000-0003-3858-2985
dc.authoridOZCIFCI, ZEHRA/0000-0001-8218-7136
dc.contributor.authorAkbayrak, Serdar
dc.contributor.authorOzcifci, Zehra
dc.contributor.authorTabak, Ahmet
dc.date.accessioned2025-03-23T19:41:57Z
dc.date.available2025-03-23T19:41:57Z
dc.date.issued2020
dc.departmentSinop Üniversitesi
dc.description.abstractActivated carbons with high porosity and high surface area are promising materials to be used in wide-range applications. They can easily be prepared from various biomass source following by simple and reproducible activation and carbonization steps. In this study, the woody part of tea which is highly available tea waste after the harvesting of tea leaves is considered as the precursor of highly porous activated carbon. In fact, activated carbon with well-ordered porous structure (micropore area = 1614.3 m(2) g(-1), micropore volume = 1.13 cm(3) g(-1)) and high surface area (2559 m(2) g(-1)) was achieved using this tea waste. The obtained activated carbon was used to support cobalt, nickel and copper nanoparticles which were used as catalysts in H-2 generation from aqueous ammonia borane. The results reveal that Co nanoparticles with an average particle size of 3.18 nm on activated carbon provide higher activity (TOF = 7.5 min(-1)) as compared to nickel (TOF = 4.8 min(-1)) and copper nanoparticles in this reaction. Herein, we report also the kinetic studies including the effect of temperature, metal concentration and metal loading on the catalytic activity in hydrolysis of ammonia borane.
dc.description.sponsorshipMETU Central Lab (Ankara/Turkey)
dc.description.sponsorshipMETU Central Lab (Ankara/Turkey) is gratefully acknowledged for the TEM and ICP-OES analyses. The authors thank to Prof. Dr. Saim _Ozkar at METU, Department of Chemistry, for lab facilities.
dc.identifier.doi10.1016/j.biombioe.2020.105589
dc.identifier.issn0961-9534
dc.identifier.issn1873-2909
dc.identifier.scopus2-s2.0-85084831691
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.biombioe.2020.105589
dc.identifier.urihttps://hdl.handle.net/11486/6688
dc.identifier.volume138
dc.identifier.wosWOS:000540918100001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofBiomass & Bioenergy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250323
dc.subjectCobalt
dc.subjectActivated carbon
dc.subjectTea waste
dc.subjectAmmonia borane
dc.subjectHydrogen
dc.titleActivated carbon derived from tea waste: A promising supporting material for metal nanoparticles used as catalysts in hydrolysis of ammonia borane
dc.typeArticle

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