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  1. 1 Acta Physica Polonica A

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  1. 1 2010

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  1. 1 Skowroński J.

  2. 1 Urbaniak J.

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Investigation of Electrocatalytic Properties of Pt/Mo - Expanded Graphite Composite Derived from Graphite Intercalation Compound

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Urbaniak J., Skowroński J.
Acta Physica Polonica A
|
2010
|
vol. 118
|
issue 3
442-446
EN
In the present work, electrocatalytic properties of Pt-EG and Pt/Mo-EG composite electrodes are studied. These composites were prepared by a three-step synthesis. First, stage-1 HClO_4-GIC was synthesized using the chronopotentiometric method. Then, HClO_4-GIC was heat treated to obtain expanded graphite. Finally, expanded graphite was coated with platinum catalyst from a water-alcohol solution of H_2PtCl_6. MoCl_5-GIC synthesized in parallel was subjected to thermal exfoliation to get Mo-EG composite onto which platinum catalyst was dispersed. The X-ray diffraction and energy dispersive X-ray analyses coupled with scanning electron microscopy were applied for characterizing the obtained GICs and EG-based composites, whereas cyclic voltammetry was used to study electrocatalytic properties of Pt/EG and Pt/Mo-EG composite electrodes in sulfuric acid and sulfuric acid admixed with methanol.
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