Journal
CARBON
Volume 45, Issue 3, Pages 536-542Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2006.10.018
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PtRu nanoparticles were decorated on multi-walled carbon nanotubes (MWCNTs) using H2PtCl6 and RuCl3 as precursors with the aid of supercritical CO2, and the resulting composites were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy. TEM observation showed that nanoparticles of size about 5 nm were distributed evenly on the MWCNTs, and XRD analysis showed that the particles had a face-centered cubic crystal structure. The loading content of the nanoparticles on the MWCNTs could be adjusted by manipulating the relative ratio of the precursor to MWCNTs. The as-prepared PtRu/MWCNT composites exhibited high activity for methanol electro-oxidation. (c) 2006 Elsevier Ltd. All rights reserved.
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