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Facilely constructing robust nanohybrids comprising high dispersion of platinum–ruthenium nanoparticles on carbon nanotubes and their enhanced electrocatalytic performance
Author(s) -
Cui Ying,
Wu Bohua,
Mao Liqiu,
Yin Dulin
Publication year - 2012
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201228572
Subject(s) - carbon nanotube , surface modification , materials science , dispersion (optics) , methanol , nanoparticle , chemical engineering , conductivity , dispersion stability , platinum , nanotechnology , ruthenium , catalysis , chemistry , organic chemistry , physics , optics , engineering
A method for high dispersion of PtRu nanoparticles (NPs) on carbon nanotubes (CNTs) based on noncovalently functionalized CNTs with dodecylamine (DA) is reported. The process of functionalization of CNTs by DA is simple and can be carried out at room temperature without the use of expensive chemicals or corrosive acids, thus preserving the electronic conductivity and the corrosion resistance of CNTs. PtRu NPs on DA‐functionalized CNTs show much better distribution with no formation of aggregates, higher electrochemically active surface (EAS) area, and higher electrocatalytic activity and stability for the electrooxidation of methanol as compared to that on conventional acid‐oxidized CNTs.