Synthesis of hydrous ruthenium oxide supported platinum catalysts for direct methanol fuel cells

Zhenguo Chen, Xinping Qiu, Bin Lu, Shichao Zhang, Wentao Zhu, Liquan Chen

Research output: Contribution to journalArticle

80 Citations (Scopus)

Abstract

Hydrous ruthenium oxide supported platinum catalysts, i.e., Pt/RuO 2 • xH2O, were synthesized by a feasible solution-phase method. X-ray diffraction (XRD) and transmission electron microscope (TEM) investigations showed that the uniform Pt nanoparticles were highly dispersed on the support materials. Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) analyses revealed that RuO2 • xH2O has the structure of RuO2 • 0.25H 2O. This support material is believed to be more active than Ru 0 as part of Pt-Ru alloy catalysts. As proved by the cyclic voltammetry (CV) results, the Pt/RuO2 • xH2O electrode shows higher reactivity towards methanol than that of E-TEK Pt-Ru black electrode. This can be interpreted as that the remarkable boundaries of Pt nanoparticles to RuO2 • xH2O support provide active sites for complete methanol electro-oxidation.

Original languageEnglish (US)
Pages (from-to)593-596
Number of pages4
JournalElectrochemistry Communications
Volume7
Issue number6
DOIs
StatePublished - Jun 1 2005

Fingerprint

Ruthenium
Direct methanol fuel cells (DMFC)
Platinum
Methanol
Nanoparticles
Electrodes
Catalysts
Oxides
Electrooxidation
Cyclic voltammetry
Thermogravimetric analysis
Differential scanning calorimetry
Electron microscopes
X ray diffraction
platinum oxide
ruthenium dioxide

Keywords

  • Direct methanol fuel cells
  • Methanol oxidation
  • Pt/RuO • xHO catalysts
  • Solution-phase synthesis method

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Analytical Chemistry
  • Electrochemistry

Cite this

Synthesis of hydrous ruthenium oxide supported platinum catalysts for direct methanol fuel cells. / Chen, Zhenguo; Qiu, Xinping; Lu, Bin; Zhang, Shichao; Zhu, Wentao; Chen, Liquan.

In: Electrochemistry Communications, Vol. 7, No. 6, 01.06.2005, p. 593-596.

Research output: Contribution to journalArticle

Chen, Zhenguo ; Qiu, Xinping ; Lu, Bin ; Zhang, Shichao ; Zhu, Wentao ; Chen, Liquan. / Synthesis of hydrous ruthenium oxide supported platinum catalysts for direct methanol fuel cells. In: Electrochemistry Communications. 2005 ; Vol. 7, No. 6. pp. 593-596.
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AU - Chen, Liquan

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