Electrochemical characterization of PtRu nanoparticles supported on mesoporous carbon for methanol electrooxidation

Nanoparticles of PtRu supported on mesoporous carbon were obtained by the impregnation and reduction method with NaBH 4. The high-surface-area mesoporous carbon was obtained by carbonization of a resorcinol-formaldehyde polymer with a cationic polyelectrolyte as a soft template. Surface characteriza...

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Autor principal: Viva, F.A
Otros Autores: Bruno, M.M, Jobbágy, M., Corti, H.R
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2012
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100 1 |a Viva, F.A. 
245 1 0 |a Electrochemical characterization of PtRu nanoparticles supported on mesoporous carbon for methanol electrooxidation 
260 |c 2012 
270 1 0 |m Bruno, M.M.; Grupo Celdas de Combustible, Departamento de Física de la Materia Condensada, Comisión Nacional de Energía Atómica (CNEA), Av General Paz 1499 (1650), San Martín, Buenos Aires, Argentina; email: mbruno@tandar.cnea.gov.ar 
506 |2 openaire  |e Política editorial 
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520 3 |a Nanoparticles of PtRu supported on mesoporous carbon were obtained by the impregnation and reduction method with NaBH 4. The high-surface-area mesoporous carbon was obtained by carbonization of a resorcinol-formaldehyde polymer with a cationic polyelectrolyte as a soft template. Surface characterization performed by transmission electron microscopy and powder X-ray diffraction showed a homogeneous distribution and high dispersion of metal particles. The PtRu catalyst shows an electrochemical active surface area, determined by CO stripping, 45% higher than PtRu catalyst synthesized by the same method on Vulcan. This translated in a 25% increase in the methanol oxidation current as well as a lower poisoning rate and higher turnover frequency, as was assessed by cyclic voltammetry and chronoamperometry. Differential electrochemical mass spectroscopy indicated an 8% higher conversion efficiency of methanol to CO 2, demonstrating the benefits of using a mesoporous carbon as catalyst support. © 2011 American Chemical Society.  |l eng 
593 |a Grupo Celdas de Combustible, Departamento de Física de la Materia Condensada, Comisión Nacional de Energía Atómica (CNEA), Av General Paz 1499 (1650), San Martín, Buenos Aires, Argentina 
593 |a Escuela de Ciencia y Tecnología, Universidad de Gral. San Martín, Martin de Irigoyen 3100 (1650), San Martín, Buenos Aires, Argentina 
593 |a Instituto de Química Física de Los Materiales, Medio Ambiente y Energía, Universidad de Buenos Aires - CONICET, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina 
690 1 0 |a CATIONIC POLYELECTROLYTE 
690 1 0 |a CO STRIPPING 
690 1 0 |a DIFFERENTIAL ELECTROCHEMICAL MASS SPECTROSCOPIES 
690 1 0 |a ELECTROCHEMICAL ACTIVE SURFACE AREAS 
690 1 0 |a ELECTROCHEMICAL CHARACTERIZATIONS 
690 1 0 |a HIGH DISPERSION 
690 1 0 |a HOMOGENEOUS DISTRIBUTION 
690 1 0 |a MESOPOROUS CARBON 
690 1 0 |a METAL PARTICLE 
690 1 0 |a METHANOL ELECTROOXIDATION 
690 1 0 |a METHANOL OXIDATION CURRENTS 
690 1 0 |a POWDER X RAY DIFFRACTION 
690 1 0 |a PT-RU CATALYSTS 
690 1 0 |a PT-RU NANOPARTICLES 
690 1 0 |a REDUCTION METHOD 
690 1 0 |a RESORCINOL FORMALDEHYDES 
690 1 0 |a SOFT TEMPLATE 
690 1 0 |a SURFACE CHARACTERIZATION 
690 1 0 |a TURNOVER FREQUENCY 
690 1 0 |a CARBON DIOXIDE 
690 1 0 |a CARBONIZATION 
690 1 0 |a CATALYSTS 
690 1 0 |a CHRONOAMPEROMETRY 
690 1 0 |a CONVERSION EFFICIENCY 
690 1 0 |a CYCLIC VOLTAMMETRY 
690 1 0 |a ELECTROOXIDATION 
690 1 0 |a MASS SPECTROMETRY 
690 1 0 |a MESOPOROUS MATERIALS 
690 1 0 |a METHANOL 
690 1 0 |a PHENOLS 
690 1 0 |a PLATINUM ALLOYS 
690 1 0 |a TRANSMISSION ELECTRON MICROSCOPY 
690 1 0 |a X RAY DIFFRACTION 
650 1 7 |2 spines  |a CARBON 
700 1 |a Bruno, M.M. 
700 1 |a Jobbágy, M. 
700 1 |a Corti, H.R. 
773 0 |d 2012  |g v. 116  |h pp. 4097-4104  |k n. 6  |p J. Phys. Chem. C  |x 19327447  |t Journal of Physical Chemistry C 
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856 4 0 |u https://doi.org/10.1021/jp209549g  |y DOI 
856 4 0 |u https://hdl.handle.net/20.500.12110/paper_19327447_v116_n6_p4097_Viva  |y Handle 
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