The Preparation of Phosphazene Crosslinked Cyclen Microspheres as Host for Cu2+ Ions and Their Utilization as a Support Material for the Preparation of a Copper Nanocatalyst

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dc.authoridKoc, Omer Kaan/0000-0002-2573-5287
dc.authoridOzay, Hava/0000-0002-4184-7801
dc.contributor.authorSahin, Ozdem
dc.contributor.authorKoc, Omer Kaan
dc.contributor.authorOzay, Hava
dc.contributor.authorÖzay, Özgür
dc.date.accessioned2025-01-27T20:54:26Z
dc.date.available2025-01-27T20:54:26Z
dc.date.issued2017
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this study firstly, phosphazene crosslinked cyclen microspheres were synthesized. Then, supported copper nanoparticles were prepared on these phosphazene crosslinked cyclen microspheres for use as a metal catalyst. The prepared microparticles and microparticle-supported metal catalyst were characterized using FT-IR, SEM-EDX, TEM and XPS analysis. Also, the prepared metal composite was used as a catalyst for the reduction reaction of 4-nitrophenol in the presence of NaBH4 in aqueous media. The catalytic activity of the Cu-cyclen composite catalyst was investigated using UV-Vis spectroscopy. The reduction studies were completed at four different temperatures (30-60 A degrees C). The activation parameters were calculated from the obtained rate constants at the four different temperatures (30-60 A degrees C). The activation energy, activation enthalpy and activation entropy for the reduction reaction of 4-NP in the presence of Cu-cyclen composite catalyst were calculated as 39.88, 36.56 and -143.30 kJmol(-1), respectively. The total turnover frequency (TOF) for Cu-cyclen composite catalyst was 0.794 mol 4-NP (mol Cu)(-1) (min)(-1).
dc.identifier.doi10.1007/s10904-016-0453-0
dc.identifier.endpage130
dc.identifier.issn1574-1443
dc.identifier.issn1574-1451
dc.identifier.issue1
dc.identifier.scopus2-s2.0-84989181094
dc.identifier.scopusqualityQ1
dc.identifier.startpage122
dc.identifier.urihttps://doi.org/10.1007/s10904-016-0453-0
dc.identifier.urihttps://hdl.handle.net/20.500.12428/26076
dc.identifier.volume27
dc.identifier.wosWOS:000393030200015
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofJournal of Inorganic and Organometallic Polymers and Materials
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectPhosphazene microsphere
dc.subjectCyclen
dc.subjectMetal catalyst
dc.subject4-Nitrophenol
dc.subjectCatalytic reduction
dc.titleThe Preparation of Phosphazene Crosslinked Cyclen Microspheres as Host for Cu2+ Ions and Their Utilization as a Support Material for the Preparation of a Copper Nanocatalyst
dc.typeArticle

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