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Abstract:

The performance of membrane electrode assembly (MEA) prepared with PtRu nanoparticles supported on a mesoporous carbon as anode catalyst are presented and compared against PtRu synthesized over Vulcan carbon. Polarization and power curves were obtained using 1 M methanol aqueous solution at the anode and O2 at the cathode. The mesoporous carbon supported catalyst shows peak power of 40 mW cm-2 and 67 mW cm-2 at 30 °C and 60 °C respectively, that is, 15-30% higher than the Vulcan supported catalyst, and exhibits a wider range of operating current. Moreover, an improvement in the mass transport is observed for the catalyst supported on mesoporous carbon, yielding a lower voltage drop at high current density. This behavior was confirmed by electrochemical impedance spectroscopy (EIS), where an increases of the Warburg coefficient value by a factor 3-4 for the catalyst supported on mesoporous carbon as compared with that supported on Vulcan, would indicate a more facile diffusion of methanol through the mesoporous carbon. © 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Registro:

Documento: Artículo
Título:Mesoporous carbon supported PtRu as anode catalyst for direct methanol fuel cell: Polarization measurements and electrochemical impedance analysis of mass transport
Autor:Bruno, M.M.; Petruccelli, M.A.; Viva, F.A.; Corti, H.R.
Filiación: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
Escuela de Ciencia y Tecnología, Universidad de Gral, San Martín, Martin de Irigoyen 3100, 1650 San-Martín, Buenos Aires, Argentina
Instituto de Química Física de Los Materiales, Medio Ambiente y Energía, Facultad de Ciencia Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, 1428 Ciudad Universitaria, Buenos Aires, Argentina
Palabras clave:Direct methanol fuel cell; Electrochemical impedance spectroscopy; Mass transport; Mesoporous carbon; PtRu catalyst; Electrochemical impedance analysis; High current densities; Lower voltage drop; Membrane electrode assemblies; Mesoporous carbon; Polarization measurements; Pt-Ru catalysts; Pt-Ru nanoparticles; Carbon; Direct methanol fuel cells (DMFC); Electrochemical impedance spectroscopy; Mass transfer; Mesoporous materials; Methanol; Platinum alloys; Polarization; Spectroscopy; Synthesis (chemical); Catalyst supports
Año:2013
Volumen:38
Número:10
Página de inicio:4116
Página de fin:4123
DOI: http://dx.doi.org/10.1016/j.ijhydene.2013.01.026
Título revista:International Journal of Hydrogen Energy
Título revista abreviado:Int J Hydrogen Energy
ISSN:03603199
CODEN:IJHED
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03603199_v38_n10_p4116_Bruno

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Citas:

---------- APA ----------
Bruno, M.M., Petruccelli, M.A., Viva, F.A. & Corti, H.R. (2013) . Mesoporous carbon supported PtRu as anode catalyst for direct methanol fuel cell: Polarization measurements and electrochemical impedance analysis of mass transport. International Journal of Hydrogen Energy, 38(10), 4116-4123.
http://dx.doi.org/10.1016/j.ijhydene.2013.01.026
---------- CHICAGO ----------
Bruno, M.M., Petruccelli, M.A., Viva, F.A., Corti, H.R. "Mesoporous carbon supported PtRu as anode catalyst for direct methanol fuel cell: Polarization measurements and electrochemical impedance analysis of mass transport" . International Journal of Hydrogen Energy 38, no. 10 (2013) : 4116-4123.
http://dx.doi.org/10.1016/j.ijhydene.2013.01.026
---------- MLA ----------
Bruno, M.M., Petruccelli, M.A., Viva, F.A., Corti, H.R. "Mesoporous carbon supported PtRu as anode catalyst for direct methanol fuel cell: Polarization measurements and electrochemical impedance analysis of mass transport" . International Journal of Hydrogen Energy, vol. 38, no. 10, 2013, pp. 4116-4123.
http://dx.doi.org/10.1016/j.ijhydene.2013.01.026
---------- VANCOUVER ----------
Bruno, M.M., Petruccelli, M.A., Viva, F.A., Corti, H.R. Mesoporous carbon supported PtRu as anode catalyst for direct methanol fuel cell: Polarization measurements and electrochemical impedance analysis of mass transport. Int J Hydrogen Energy. 2013;38(10):4116-4123.
http://dx.doi.org/10.1016/j.ijhydene.2013.01.026