Journal
JOURNAL OF CATALYSIS
Volume 311, Issue -, Pages 481-486Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2014.01.001
Keywords
Pt-Ru; ALD; N-doped CNT; CO oxidation; MOR; DMFC
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Funding
- European Community [ENHANCE-238409]
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Pt-Ru catalysts of various compositions, between 0 and 100 at.% of Ru, were deposited onto N-doped multi-walled carbon nanotubes (N-CNTs) by atomic layer deposition (ALD) at 250 degrees C. The Pt and Ru precursors were trimethyl(methylcyclopentadienyl)platinum (MeCpPtMe3) and bis(ethylcyclopentadienyl)ruthenium (Ru(EtCp)(2)), respectively. O-2 was used as the reactant in both processes. The composition of the catalysts was easily tuned by varying the Pt-to-Ru ALD cycle ratio. The catalysts were tested toward the CO oxidation and methanol oxidation reaction (MOR) in a three-electrode electrochemical set-up. For the compositions investigated, the catalysts with a Ru content of 29 at.% exhibited highest catalytic activity. (C) 2014 Elsevier Inc. All rights reserved.
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