Clean Method for the Synthesis of Reduced Graphene Oxide-Supported PtPd Alloys with High Electrocatalytic Activity for Ethanol Oxidation in Alkaline Medium

2014 ◽  
Vol 6 (5) ◽  
pp. 3607-3614 ◽  
Author(s):  
Fangfang Ren ◽  
Huiwen Wang ◽  
Chunyang Zhai ◽  
Mingshan Zhu ◽  
Ruirui Yue ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Alkaline Medium ◽  
Electrocatalytic Activity ◽  
Ethanol Oxidation ◽  
Reduced Graphene

Fabrication of dog-bone shaped Au NRcore–Pt/Pdshell trimetallic nanoparticle-decorated reduced graphene oxide nanosheets for excellent electrocatalysis

2016 ◽  
Vol 4 (10) ◽  
pp. 3765-3776 ◽  
Author(s):  
Soumen Dutta ◽  
Chaiti Ray ◽  
Anup Kumar Sasmal ◽  
Yuichi Negishi ◽  
Tarasankar Pal
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrocatalytic Activity ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Graphene Oxide Nanosheets ◽  
Ethanol Oxidation Reaction ◽  
Dog Bone ◽  
Reduced Graphene

Dog-bone shaped Au NRcore–Pt/Pdshell decorated reduced graphene oxide nanocomposites (GMTs) exhibit outstanding electrocatalytic activity and durability towards ethanol oxidation reaction.

PdxAgy alloy nanoparticles supported on reduced graphene oxide as efficient electrocatalyst for ethanol oxidation in alkaline medium

RSC Advances ◽  
2015 ◽  
Vol 5 (62) ◽  
pp. 49899-49903 ◽  
Author(s):  
Cheng Peng ◽  
Mingrui Liu ◽  
Yongli Hu ◽  
Wenke Yang ◽  
Jiaojiao Guo ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hydrothermal Synthesis ◽  
Reduced Graphene Oxide ◽  
Alkaline Medium ◽  
Ethanol Oxidation ◽  
Synthesis Method ◽  
Alloy Nanoparticles ◽  
Reduced Graphene

Well-dispersed PdxAgy alloy nanoparticles supported on reduced graphene oxide (RGO) sheets (PdxAgy/RGO) are successfully synthesized by in situ reduction precipitation using hydrothermal synthesis method.

scholarly journals Enhanced Electrocatalytic Activity of Pt Particles Supported on Reduced Graphene Oxide/Poly(3,4-ethylenedioxythiophene) RGO/PEDOT Composite towards Ethanol Oxidation

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Juanito Raphael F. Foronda ◽  
Stellar Marie R. Cabrera ◽  
Darrel L. Cumpas ◽  
Paolo Gio A. Villar ◽  
Joshua L. Tan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Fuel Cells ◽  
Reduced Graphene Oxide ◽  
Electrocatalytic Activity ◽  
Ethanol Oxidation ◽  
Hybrid Composites ◽  
Anodic Current Density ◽  
Direct Ethanol Fuel Cells ◽  
Reduced Graphene ◽  
Platinum Particles

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 HClO4electrolyte. 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−2at 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.

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