Jump to main content
Jump to site search

Issue 90, 2015
Previous Article Next Article

Pt–CeO2/reduced graphene oxide nanocomposite for the electrooxidation of formic acid and formaldehyde

Author affiliations

Abstract

The Pt–CeO2/reduced graphene oxide nanocomposite on the carbon-ceramic electrode (Pt–CeO2/RGO/CCE) was prepared by a two-step electrodeposition process. RGO was deposited on the CCE through a simple electrochemical method using graphene oxide and CCE as the precursor and electrode substrate, respectively. Then, RGO/CCE was used as a support for the Pt–CeO2 nanoparticle deposition by another electrochemical process to form the nanocomposite based electrocatalyst; Pt–CeO2/RGO/CCE. The obtained electrocatalyst was characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray diffraction and cyclic voltammetric techniques. The electrocatalytic activity of the Pt–CeO2/RGO/CCE toward the oxidation of formic acid and formaldehyde was investigated by cyclic voltammetry and chronoamperometry in 0.1 M H2SO4 solution. It was found that the Pt–CeO2/RGO/CCE is electrocatalytically more active than the Pt–CeO2/CCE, Pt/RGO/CCE and Pt/CCE electrocatalysts. The increased electrocatalytic efficiency of Pt in Pt–CeO2/RGO/CCE is likely to result from its combination with CeO2 to form Pt–CeO2 nanoparticles and their deposition on/in the RGO layers at the CCE surface. From the obtained results, it could be concluded that the Pt–CeO2/RGO/CCE can be used as a potential and effective electrocatalyst for direct liquid fuel cell applications.

Graphical abstract: Pt–CeO2/reduced graphene oxide nanocomposite for the electrooxidation of formic acid and formaldehyde

Back to tab navigation

Publication details

The article was received on 27 May 2015, accepted on 24 Aug 2015 and first published on 24 Aug 2015


Article type: Paper
DOI: 10.1039/C5RA09770C
Author version
available:
Download author version (PDF)
RSC Adv., 2015,5, 73639-73650

  •   Request permissions

    Pt–CeO2/reduced graphene oxide nanocomposite for the electrooxidation of formic acid and formaldehyde

    B. Habibi and N. Delnavaz, RSC Adv., 2015, 5, 73639
    DOI: 10.1039/C5RA09770C

Search articles by author

Spotlight

Advertisements