Published March 1, 2016 | Version v1
Journal article Metadata-only

One-pot synthesis of graphene supported platinum–cobalt nanoparticles as electrocatalysts for methanol oxidation

Creators

  • 1. Department of Catalysis, Center for Physical Sciences and Technology, Vilnius LT 01108 (Lithuania)
  • 2. Faculty of Chemistry, Vilnius University, Vilnius LT 03225 (Lithuania)

Description

In the present study the graphene supported platinum–cobalt nanoparticles were prepared via microwave synthesis. The composition of prepared catalysts was examined by Inductively Coupled Plasma Optical Emission Spectroscopy. The shape and size of catalyst particles were determined by Transmission Electron Microscopy. The electrocatalytic activity of the graphene supported platinum–cobalt nanoparticles was investigated towards the electro-oxidation of methanol in an alkaline medium. It has been found that the graphene supported platinum–cobalt nanoparticles having the Pt:Co molar ratio 1:7 show the highest activity towards the electro-oxidation of methanol among the catalysts with the Pt:Co molar ratios equal to 1:1 and 1:44, graphene supported bare Co and Pt/C catalysts. - Highlights: • Preparation of graphene supported Pt-Co nanoparticles by microwave synthesis. • Electrocatalysts for oxidation of methanol. • Higher activity of PtCo/graphene towards methanol oxidation.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.matchemphys.2015.12.010

Additional details

Identifiers

DOI
10.1016/j.matchemphys.2015.12.010;
PII
S0254-0584(15)30485-5;

Publishing Information

Journal Title
Materials Chemistry and Physics
Journal Volume
171
Journal Page Range
p. 145-152
ISSN
0254-0584
CODEN
MCHPDR

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
48018050
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
COBALT; COMPOSITE MATERIALS; ELECTROCATALYSTS; ELECTROCHEMISTRY; EMISSION SPECTROSCOPY; GRAPHENE; METHANOL; MICROWAVE RADIATION; NANOPARTICLES; OXIDATION; PLATINUM; SYNTHESIS; TRANSMISSION ELECTRON MICROSCOPY
Descriptors DEC
ALCOHOLS; CARBON; CATALYSTS; CHEMICAL REACTIONS; CHEMISTRY; ELECTROMAGNETIC RADIATION; ELECTRON MICROSCOPY; ELEMENTS; HYDROXY COMPOUNDS; MATERIALS; METALS; MICROSCOPY; NONMETALS; ORGANIC COMPOUNDS; PARTICLES; PLATINUM METALS; RADIATIONS; SPECTROSCOPY; TRANSITION ELEMENTS

Optional Information

Copyright
Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.