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Ánodos de Pt-Ru y Pt-Ir para Celdas de Combustible Alimentadas con Metano y Propano Directo
(Centro de Información Tecnológica, 2007)
Co oxidation on spontaneous Pt–Ru deposits on composite polymeric electrodes
(Elsevier, 2010-01)
Composite polyaniline electrodes containing carbon nanotubes incorporated in the film and spontaneous Pt–Ru deposits as catalytic material for CO oxidation are reported. PANI films were electrosynthesized from a monomer ...
Ethanol electro-oxidation on carbon-supported Pt-Ru, Pt-Rh and Pt-Ru-Rh nanoparticles
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
This work investigates the effects of carbon-supported Pt, Pt-Ru, Pt-Rh and Pt-Ru-Rh alloy electrocatalysts oil the yields of CO2 and acetic acid as electro-oxidation products of ethanol. Electronic and structural features ...
A DFT study of H adsorption on Pt(111) and Pt-Ru(111) surfaces
(Elsevier Science, 2008-07)
In this work a comparative analysis between different Pt-Ru(111) surface models and pure Pt(111) surface is presented. Some aspects of the electronic structure of the surfaces and hydrogen adsorption are analysed based on ...
Electrochemical Evidence of Strong Electronic Interaction of PtRu on Carbon Nanotubes with High Density of Defects
(ELECTROCHEMICAL SOC INC, 2008)
We show that carbon nanotubes (CNTs) with high density of defects can present a strong electronic interaction with nanoparticles of Pt-Ru with average particle size of 3.5 +/- 0.8 nm. Depending on the Pt-Ru loading on the ...
The effect of methanol on the stability of Pt/C and Pt-RuO(x)/C catalysts
(PERGAMON-ELSEVIER SCIENCE LTD, 2010)
The behavior of Pt/C and Pt-RuO(x)/C electrodes subjected to a larger number of potential scans and constant potential for prolonged time periods was investigated in the absence and presence of methanol. The structural ...
Improvement on direct ethanol fuel cell performance by using doped-Nafion® 117 membranes with Pt and Pt-Ru nanoparticles
(ElsevierDordrecht, 2013-09)
Nafion® 117 membranes doped with Pt (4 x 10-4 mol L-1 or 8 x 10-4 mol L-1 H2PtCl6 solution), and with Pt-Ru (4 x 10-4 mol L-1 H2PtCl6 and 2 x 10-4 mol L-1 RuCl3 solutions) nanoparticles have been synthesized using a simple ...
Desenvolvimento de catalisadores sem platina: estudos comparativos da oxidação de metanol em 'PD''RU'/'C' e 'PT''RU'/'C' em meio alcalino
(Universidade Estadual Paulista (Unesp), 2015-02-10)
In this work, we present a study of the activity of carbon-supported PdRu catalysts for the methanol oxidation reaction in alkaline medium, as well as the comparison with similar materials based on Pt (PtRu/C). The catalysts ...