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Franceschini, E.A.; Bruno, M.M.; Williams, F.J.; Viva, F.A.; Corti, H.R. "High-activity mesoporous Pt/Ru catalysts for methanol oxidation" (2013) ACS Applied Materials and Interfaces. 5(21):10437-10444
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Abstract:

High activity mesoporous Pt/Ru catalysts with 2D-hexagonal structure were synthesized using a triblock poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) copolymer (Pluronic F127) template. The normalized mass activities for the methanol oxidation reaction (MOR) of the Pt/Ru catalysts with a regular array of pores is higher than those reported for nanoparticulated Pt/Ru catalysts. Different kinetic parameters, as Tafel slope and activation energy, were obtained for the MOR on the mesoporous catalysts. Results indicated that catalysts performance depends on pore size. Mass activities and the CO2 conversion efficiency for large pore size mesoporous catalysts (10 nm) are greater than those reported for smaller pore size mesoporous catalysts with similar composition. The effect of pore size on catalysts performance is related to the greater accessibility of methanol to the active areas inside large pores. Consequently, the overall residence time of methanol increases as compared with mesoporous catalyst with small pores. © 2013 American Chemical Society.

Registro:

Documento: Artículo
Título:High-activity mesoporous Pt/Ru catalysts for methanol oxidation
Autor:Franceschini, E.A.; Bruno, M.M.; Williams, F.J.; Viva, F.A.; Corti, H.R.
Filiación:Grupo de Celdas de Combustible, Departamento de Física de la Materia Condensada, Centro Atómico Constituyentes, CNEA, 1650, Buenos Aires, Argentina
Escuela de Ciencia y Tecnología, Universidad de Gral, San Martín, 1650, Buenos Aires, Argentina
Departamento de Quimica Inorganica, Analitica y Quimica-Fisica, INQUIMAE CONICET, Ciudad Universitaria, Buenos Aires, Argentina
Palabras clave:fuel cells; mass activity; mesoporous; methanol; PluronicF127; Pt/Ru catalysts; Large pore size; Mass activity; Mesoporous; Mesoporous catalysts; Methanol Oxidation; Methanol oxidation reactions; PluronicF127; Propylene oxide; Activation energy; Carbon dioxide; Fuel cells; Mesoporous materials; Methanol; Polyethylene oxides; Pore size; Propylene; Catalyst activity
Año:2013
Volumen:5
Número:21
Página de inicio:10437
Página de fin:10444
DOI: http://dx.doi.org/10.1021/am403471c
Título revista:ACS Applied Materials and Interfaces
Título revista abreviado:ACS Appl. Mater. Interfaces
ISSN:19448244
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19448244_v5_n21_p10437_Franceschini

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Citas:

---------- APA ----------
Franceschini, E.A., Bruno, M.M., Williams, F.J., Viva, F.A. & Corti, H.R. (2013) . High-activity mesoporous Pt/Ru catalysts for methanol oxidation. ACS Applied Materials and Interfaces, 5(21), 10437-10444.
http://dx.doi.org/10.1021/am403471c
---------- CHICAGO ----------
Franceschini, E.A., Bruno, M.M., Williams, F.J., Viva, F.A., Corti, H.R. "High-activity mesoporous Pt/Ru catalysts for methanol oxidation" . ACS Applied Materials and Interfaces 5, no. 21 (2013) : 10437-10444.
http://dx.doi.org/10.1021/am403471c
---------- MLA ----------
Franceschini, E.A., Bruno, M.M., Williams, F.J., Viva, F.A., Corti, H.R. "High-activity mesoporous Pt/Ru catalysts for methanol oxidation" . ACS Applied Materials and Interfaces, vol. 5, no. 21, 2013, pp. 10437-10444.
http://dx.doi.org/10.1021/am403471c
---------- VANCOUVER ----------
Franceschini, E.A., Bruno, M.M., Williams, F.J., Viva, F.A., Corti, H.R. High-activity mesoporous Pt/Ru catalysts for methanol oxidation. ACS Appl. Mater. Interfaces. 2013;5(21):10437-10444.
http://dx.doi.org/10.1021/am403471c