1 Ocak 2016 Dergi makalesi Açık Erişim

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

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        "affiliation": "Yildiz Tekn Univ, Dept Chem, TR-34210 Istanbul, Turkey", 
        "name": "Korkut, Sibel Eken"
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      {
        "affiliation": "Marmara Univ, Dept Chem Engn, TR-34722 Istanbul, Turkey", 
        "name": "Akyuz, Duygu"
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      {
        "affiliation": "Yildiz Tekn Univ, Dept Phys, TR-34210 Istanbul, Turkey", 
        "name": "Ozdogan, Kemal"
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      {
        "name": "Yerli, Yusuf"
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      {
        "affiliation": "Marmara Univ, Dept Chem Engn, TR-34722 Istanbul, Turkey", 
        "name": "Koca, Atif"
      }, 
      {
        "affiliation": "Yildiz Tekn Univ, Dept Chem, TR-34210 Istanbul, Turkey", 
        "name": "Sener, M. Kasim"
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    "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).", 
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      "issue": "7", 
      "pages": "3086-3092", 
      "title": "DALTON TRANSACTIONS", 
      "volume": "45"
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    "publication_date": "2016-01-01", 
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    "title": "TEMPO-functionalized zinc phthalocyanine: synthesis, magnetic properties, and its utility for electrochemical sensing of ascorbic acid"
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