1 Ocak 2016 Dergi makalesi Açık Erişim

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

Citation Style Language JSON

{
  "DOI": "10.1039/c5dt04513d", 
  "abstract": "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).", 
  "author": [
    {
      "family": "Korkut", 
      "given": " Sibel Eken"
    }, 
    {
      "family": "Akyuz", 
      "given": " Duygu"
    }, 
    {
      "family": "Ozdogan", 
      "given": " Kemal"
    }, 
    {
      "family": "Yerli", 
      "given": " Yusuf"
    }, 
    {
      "family": "Koca", 
      "given": " Atif"
    }, 
    {
      "family": "Sener", 
      "given": " M. Kasim"
    }
  ], 
  "container_title": "DALTON TRANSACTIONS", 
  "id": "59873", 
  "issue": "7", 
  "issued": {
    "date-parts": [
      [
        2016, 
        1, 
        1
      ]
    ]
  }, 
  "page": "3086-3092", 
  "title": "TEMPO-functionalized zinc phthalocyanine: synthesis, magnetic properties, and its utility for electrochemical sensing of ascorbic acid", 
  "type": "article-journal", 
  "volume": "45"
}