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  Global Journal of Physical Chemistry 2012, 3: 8
  Research Article
Electrochemical activity testing of Pt/MOx/GC electrodes for ethylene glycol oxidation: SnO2 in comparison to CeO2 and WO3
  A.A. El-Shafeia,b, H.A. Mostafaa, A.A. Ibrahima, A.M.A. Ouf a,c  
a Chemistry Department, Faculty of Science, Mansoura University, 35516 Mansoura, Egypt
b Chemistry Department, College of Science, King Faisal University, Al-Hassa, Saudi Arabia
c Chemistry Department, College of Science, Taibah University, Al-Olla, Saudi Arabia

  Stable metal oxides insoluble in acidic medium have been prepared and characterized. The influence of metal oxide (MOx type) on the activity of Pt towards ethylene glycol (EG) oxidation in acidic medium has been examined. All modified Pt/MOx/glassy carbon (GC) electrodes exhibited a better activity compared to Pt/GC. While Pt/SnO2/GC electrode exhibited the highest activity, Pt/CeO2/GC revealed the best tolerance against poisoning process.
  Ethylene glycol; Direct alcohol; Pt/MOX Composite electrode; Acidic medium  

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