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Article Dans Une Revue SCIENTIFIC WORLD JOURNAL Année : 2012

Development of Ternary and Quaternary Catalysts for the Electrooxidation of Glycerol

Résumé

This work consisted in the preparation of platinum-based catalysts supported on carbon (Vulcan XC-72) and investigation of their physicochemical and electrochemical properties. Catalysts of the C/Pt-Ni-Sn-Me (Me = Ru or Ir) type were prepared by the Pechini method at temperature of 350 degrees C. Four different compositions were homemade: C/Pt60Sn10Ni30, C/Pt60Sn10Ni20Ru10, C/Pt60Sn10Ni10Ru20, and C/Pt60Sn10Ni10Ir20. These catalysts were electrochemically and physically characterized by cyclic voltammetry (CV), chronoamperometry (CA) in the presence of glycerol 1.0 mol dm(-3), X-ray diffraction (XRD), and high-resolution transmission electron microscopy (HRTEM). XRD results showed the main peaks of face-centered cubic Pt. The particle sizes obtained from XRD and HRTEM experiments were close to values ranging from 3 to 8.5 nm. The CV results indicate behavior typical of Pt-based catalysts in acid medium. The CV and CA data reveal that quaternary catalysts present the highest current density for the electrooxidation of glycerol.

Dates et versions

hal-00826892 , version 1 (28-05-2013)

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Citer

L.M. Artemyev, D.M. Santos, A.R. de Andrade, K.B. Kokoh, C. Ribeiro. Development of Ternary and Quaternary Catalysts for the Electrooxidation of Glycerol. SCIENTIFIC WORLD JOURNAL, 2012, pp.502083. ⟨10.1100/2012/502083⟩. ⟨hal-00826892⟩
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