English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/109407
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

New copper/GO based material as an efficient oxygen reduction catalyst in an alkaline medium: The role of unique Cu/rGO architecture

AuthorsOvín Ania, María Concepción ; Seredych, Mykola; Rodríguez-Castellón, Enrique; Bandosz, Teresa J.
KeywordsCopper/graphene
Composites
Surface chemistry
Electrocatalysis
Oxygen reduction reaction
Issue DateAug-2014
PublisherElsevier
CitationApplied Catalysis B: Environmental 163: 424-435 (2015)
AbstractA new hybrid Cu/rGO catalyst obtained by a thermal treatment of the composite of a copper-based MOF with graphite oxide exhibited a marked catalytic activity for oxygen reduction reaction (ORR) in an alkaline medium, high tolerance to methanol oxidation and superior long-term stability over 20 h. The unique architecture of the copper atoms in the 3D framework of the pristine MOF coupled with the excellent electron transfer properties of rGO lead to materials with a homogenous distribution of copper nanoparticles of specific chemistry assembled within the graphene sheets. Fast O2 adsorption and charge transfer owing to the strong interactions between copper atoms and graphite oxide resulted in highly stable and active Cu/rGO electrodes, compared to the carbonized MOF. The synergistic effect of copper and rGO in the composite leads to a superior ORR activity in terms of long-term stability and high current densities, close to the best performance reported for Pt and other metal-free electrocatalysts.
Publisher version (URL)http://dx.doi.org/10.1016/j.apcatb.2014.08.022
URIhttp://hdl.handle.net/10261/109407
DOI10.1016/j.apcatb.2014.08.022
ISSN0926-3373
Appears in Collections:(INCAR) Artículos
Files in This Item:
File Description SizeFormat 
New copperGO_Ania.pdf2,04 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.