Electroanalytical Study of Methanol Oxidation and Oxygen Reduction at Carbon Nanohorns-Pt Nanostructured Electrodes

Zéhira Hamoudi, Brahim Aissa, My Ali ElKhakani, Mohamed Mohamedi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

This work reports a comprehensive electroanalytical study of carbon nanohorns (CNHs) in electrochemical applications. Compared to other types of carbons, the bare CNHs electrode exhibited higher peak current densities and lowest anodic peak-to-cathodic peak separation of less than 50mV for the [Fe(CN)4-]6/[Fe(CN)3-]6 redox couple. Furthermore, CNHs exhibited excellent electrocatalyst supporting properties for porous Pt film towards methanol oxidation reaction reaching a peak current density of 127mAcm-2 or peak current mass activity 184mAmgPt -1. Regarding oxygen reduction reaction, an onset potential as positive as 0. 77V vs. Ag/AgCl was achieved with CNHs/porous Pt film.

Original languageEnglish
Pages (from-to)538-545
Number of pages8
JournalElectroanalysis
Volume25
Issue number2
DOIs
Publication statusPublished - Feb 2013
Externally publishedYes

Fingerprint

Nanohorns
Methanol
Carbon
Oxygen
Oxidation
Electrodes
Current density
Electrocatalysts

Keywords

  • Carbon nanohorns
  • Electrocatalyst support
  • Methanol oxidation
  • Nanoparticles
  • Oxygen reduction

ASJC Scopus subject areas

  • Analytical Chemistry
  • Electrochemistry

Cite this

Electroanalytical Study of Methanol Oxidation and Oxygen Reduction at Carbon Nanohorns-Pt Nanostructured Electrodes. / Hamoudi, Zéhira; Aissa, Brahim; ElKhakani, My Ali; Mohamedi, Mohamed.

In: Electroanalysis, Vol. 25, No. 2, 02.2013, p. 538-545.

Research output: Contribution to journalArticle

Hamoudi, Zéhira ; Aissa, Brahim ; ElKhakani, My Ali ; Mohamedi, Mohamed. / Electroanalytical Study of Methanol Oxidation and Oxygen Reduction at Carbon Nanohorns-Pt Nanostructured Electrodes. In: Electroanalysis. 2013 ; Vol. 25, No. 2. pp. 538-545.
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