Journal
JOURNAL OF POWER SOURCES
Volume 233, Issue -, Pages 252-258Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2013.01.144
Keywords
Flower-like gold palladium nanoparticles; Carbon fiber cloth; Hydrogen peroxide; Electroreduction; Acid medium
Funding
- Fundamental Research Funds for the Central Universities [HEUCFT1205]
- Harbin Science and Technology Innovation Fund for Excellent Academic Leaders [2012RFXXG103]
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A novel synthesis of Au-Pd alloy nanoparticles supported on carbon fiber cloth (Au-Pd NPs/CFC) via a potential pulse technique is presented. Different composition stoichiometry of Au-Pd nanoparticles are deposited from the aqueous solutions of HAuCl4/PdCl2 mixtures in molar ratios of 5:1, 2:1, 1:1, 1:2 and 1:5. The electrode is characterized by scanning electron microscopy coupled to energy dispersive X-ray analysis (SEM EDX), transmission electron microscopy (TEM) and X-ray diffractometer (XRD). H2O2 electroreduction in H2SO4 solution on Au-Pd nanoparticles is studied by linear sweep voltammetry and chronoamperometry. The catalytic performance on different composition stoichiometry of Au-Pd nanoparticles increases with the increase of Pd content. Additionally, the flower-like Au-Pd NPs/CFC electrode exhibits the excellent catalytic properties and good stability to H2O2 electroreduction in acid solution, and it outperforms pure Au or Pd catalyst supported on carbon fiber cloth. (C) 2013 Elsevier B.V. All rights reserved.
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