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Enhanced Electrocatalytic Activity of Pt Particles Supported on Reduced Graphene OxidePoly(3,4-ethylenedioxythiophene) RGOPEDOT Composite towards Ethanol Oxidation
Joint Authors
Tongol, Bernard John V.
Foronda, Juanito Raphael F.
Villar, Paolo Gio A.
Tan, Joshua L.
Cabrera, Stellar Marie R.
Cumpas, Darrel L.
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-10-28
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Catalysts in fuel cells are normally platinum based because platinum exhibits high electrocatalytic activity towards ethanol oxidation in acidic medium.
However, bulk Pt is expensive and rare in nature.
To reduce the consumption of Pt, a support material or matrix is needed to disperse Pt on its surface as micro- or nanoparticles with potential application as anode material in direct ethanol fuel cells (DEFCs).
In this study, a composite material consisting of platinum particles dispersed on reduced graphene oxide/poly(3,4-ethylenedioxythiophene) (RGO/PEDOT) support was electrochemically prepared for ethanol oxidation in sulfuric acid electrolyte.
PEDOT, a conductive polymer, was potentiodynamically polymerized from the corresponding monomer, 0.10 M EDOT in 0.10 M HClO4 electrolyte.
The PEDOT-modified electrode was used as a substrate for exfoliated graphene oxide (EGO) which was prepared by electrochemical exfoliation of graphite from carbon rod of spent batteries and subsequently reduced to form RGO.
The Pt/RGO/PEDOT composite gave the highest electrocatalytic activity with an anodic current density of 2688.7 mA·cm−2 at E = 0.70 V (versus Ag/AgCl) towards ethanol oxidation compared to bare Pt electrode and other composites.
Scanning electron microscopy (SEM) revealed the surface morphology of the hybrid composites while energy dispersive X-ray (EDX) confirmed the presence of all the elements for the Pt/RGO/PEDOT composite.
American Psychological Association (APA)
Foronda, Juanito Raphael F.& Cabrera, Stellar Marie R.& Cumpas, Darrel L.& Villar, Paolo Gio A.& Tan, Joshua L.& Tongol, Bernard John V.. 2013. Enhanced Electrocatalytic Activity of Pt Particles Supported on Reduced Graphene OxidePoly(3,4-ethylenedioxythiophene) RGOPEDOT Composite towards Ethanol Oxidation. Journal of Chemistry،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-476623
Modern Language Association (MLA)
Foronda, Juanito Raphael F.…[et al.]. Enhanced Electrocatalytic Activity of Pt Particles Supported on Reduced Graphene OxidePoly(3,4-ethylenedioxythiophene) RGOPEDOT Composite towards Ethanol Oxidation. Journal of Chemistry No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-476623
American Medical Association (AMA)
Foronda, Juanito Raphael F.& Cabrera, Stellar Marie R.& Cumpas, Darrel L.& Villar, Paolo Gio A.& Tan, Joshua L.& Tongol, Bernard John V.. Enhanced Electrocatalytic Activity of Pt Particles Supported on Reduced Graphene OxidePoly(3,4-ethylenedioxythiophene) RGOPEDOT Composite towards Ethanol Oxidation. Journal of Chemistry. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-476623
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-476623