1 Ocak 2016 Dergi makalesi Açık Erişim

Korkut, Sibel Eken; Akyuz, Duygu; Ozdogan, Kemal; Yerli, Yusuf; Koca, Atif; Sener, M. Kasim

Dublin Core

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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Korkut, Sibel Eken</dc:creator>
  <dc:creator>Akyuz, Duygu</dc:creator>
  <dc:creator>Ozdogan, Kemal</dc:creator>
  <dc:creator>Yerli, Yusuf</dc:creator>
  <dc:creator>Koca, Atif</dc:creator>
  <dc:creator>Sener, M. Kasim</dc:creator>
  <dc:date>2016-01-01</dc:date>
  <dc:description>Zinc(II) phthalocyanine (TEMPO-ZnPc), peripherally functionalized with 2,2,6,6-tetramethyl-1-piperidinyloxy (TEMPO) radicals is synthesized and its magneto structural and electrochemical behaviors are investigated. TEMPO-ZnPc shows multi-electron ring based reduction reactions and a TEMPO based oxidation reaction. Spectroelectrochemical measurements support these peak assignments. TEMPO-ZnPc is tested as a homogeneous and heterogeneous ascorbic acid (AA) sensor. Disappearance of TEMPO-ZnPc based reduction processes and the observation of new waves at around 0 and 1.20 V with respect to increasing AA concentration indicate the interaction of TEMPO-ZnPc with AA and usability of the complex as an electrochemical AA sensor. For practical usage as heterogeneous electrocatalysts for AA sensing, a glassy carbon electrode (GCE) is coated with TEMPO-ZnPc (GCE/TEMPO-ZnPc) and this modified electrode is tested as a heterogeneous AA sensor. The redox peak of GCE/TEMPO-ZnPc at 0.81 V decreases the peak current while a new wave is observed at 0.65 V during the titration of the electrolyte with AA. GCE/TEMPO-ZnPc sense AA with 1.75 x 10(-6) mol dm(-3) LOD with a sensitivity of 1.89 x 10(3) A cm mol(-1).</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/59873</dc:identifier>
  <dc:identifier>oai:zenodo.org:59873</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>DALTON TRANSACTIONS 45(7) 3086-3092</dc:source>
  <dc:title>TEMPO-functionalized zinc phthalocyanine: synthesis, magnetic properties, and its utility for electrochemical sensing of ascorbic acid</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>