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PtIr–WO3 nanostructured alloy for electrocatalytic oxidation of ethylene glycol and ethanol
- Source :
- Journal of Solid State Electrochemistry
- Publication Year :
- 2014
- Publisher :
- Springer Science and Business Media LLC, 2014.
-
Abstract
- In this article, we characterized tungsten oxide-decorated carbon-supported PtIr nanoparticles and tested it for the electrooxidation reactions of ethylene glycol and ethanol. Phase and morphological evaluation of the proposed electrocatalytic materials are investigated employing various characterization techniques including X-ray diffraction (XRD) and transmission electron microscopy (TEM). Electrochemical diagnostic measurements such as cyclic voltammetry, chronoamperometry, and linear sweep voltammetry revealed that the tungsten oxide-modified PtIr/Vulcan nanoparticles have higher catalytic activity for ethylene glycol and ethanol electrooxidation than that of PtIr/Vulcan. A significant enhancement for electrooxidation of CO-adsorbate monolayers occurred in the presence of a transition metal oxide relative to that of pure PtIr/Vulcan electrocatalyst. The likely reasons for this are modification on the Pt center electronic structure and/or increasing the population of reactive oxo groups at the PtIr/Vulcan electrocatalytic interface in different potential regions.
- Subjects :
- Materials science
Inorganic chemistry
Population
Nanoparticle
Electrocatalyst
chemistry.chemical_compound
Materials Science(all)
Transition metal
Ethylene glycol electrooxidation
Electrochemistry
General Materials Science
Electrical and Electronic Engineering
education
Original Paper
education.field_of_study
Tungsten oxide
Chronoamperometry
Condensed Matter Physics
chemistry
PtIr nanoparticles
Linear sweep voltammetry
Ethanol oxidation
Cyclic voltammetry
Electrocatalysis
Ethylene glycol
Nuclear chemistry
Subjects
Details
- ISSN :
- 14330768 and 14328488
- Volume :
- 18
- Database :
- OpenAIRE
- Journal :
- Journal of Solid State Electrochemistry
- Accession number :
- edsair.doi.dedup.....3782ce81da76b0fcbf90683354222909