Mesoporous Pt electrocatalyst for methanol tolerant cathodes of DMFC
High activity mesoporous Pt electrocatalyst, having 2D-hexagonal mesostructure, was synthesized using a triblock poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) copolymer (Pluronic F127®) template. The catalyst was characterized for the oxygen reduction reaction (ORR) in a rotati...
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paper:paper_00134686_v71_n_p173_Franceschini2023-06-08T14:35:59Z Mesoporous Pt electrocatalyst for methanol tolerant cathodes of DMFC Franceschini, Esteban Andrés Williams, Federico Jose Jobbagy, Matias Corti, Horacio Roberto Electroreduction Fuel cells Mesoporous Pt Methanol Oxygen Carbon dioxide Catalyst poisoning Catalyst supports Catalysts Cathodes Efficiency Electrocatalysts Electrodes Electrolytic reduction Ethylene Fuel cells Mass spectrometry Mesoporous materials Methanol Oxygen Platinum Polyethylene oxides Proton exchange membrane fuel cells (PEMFC) Differential electrochemical mass spectrometry Electro reduction Mesoporous Pt Methanol tolerant Oxygen reduction reaction Reaction mechanism Rotating ring-disk electrode Tafel slope analysis Direct methanol fuel cells (DMFC) High activity mesoporous Pt electrocatalyst, having 2D-hexagonal mesostructure, was synthesized using a triblock poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) copolymer (Pluronic F127®) template. The catalyst was characterized for the oxygen reduction reaction (ORR) in a rotating ring disk electrode (RRDE) configuration, obtaining a high efficiency of conversion to H2 O. The formation of H2O 2 during the ORR was low and a change in Tafel slope analysis indicated a change in the reaction mechanism with temperature. It was found, through differential electrochemical mass spectrometry (DEMS) analysis, that the mesoporous Pt catalysts exhibit a high methanol to CO2 conversion efficiency and high tolerance to CO poisoning. The procedure described in this work for preparing mesoporous Pt catalyst by electrodeposition provides a simple method for the generation of high-performance cathodes for direct methanol PEM fuel cells. © 2012 Elsevier Ltd. All rights reserved. Fil:Franceschini, E.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Williams, F.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Jobbágy, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Corti, H.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00134686_v71_n_p173_Franceschini http://hdl.handle.net/20.500.12110/paper_00134686_v71_n_p173_Franceschini |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Electroreduction Fuel cells Mesoporous Pt Methanol Oxygen Carbon dioxide Catalyst poisoning Catalyst supports Catalysts Cathodes Efficiency Electrocatalysts Electrodes Electrolytic reduction Ethylene Fuel cells Mass spectrometry Mesoporous materials Methanol Oxygen Platinum Polyethylene oxides Proton exchange membrane fuel cells (PEMFC) Differential electrochemical mass spectrometry Electro reduction Mesoporous Pt Methanol tolerant Oxygen reduction reaction Reaction mechanism Rotating ring-disk electrode Tafel slope analysis Direct methanol fuel cells (DMFC) |
| spellingShingle |
Electroreduction Fuel cells Mesoporous Pt Methanol Oxygen Carbon dioxide Catalyst poisoning Catalyst supports Catalysts Cathodes Efficiency Electrocatalysts Electrodes Electrolytic reduction Ethylene Fuel cells Mass spectrometry Mesoporous materials Methanol Oxygen Platinum Polyethylene oxides Proton exchange membrane fuel cells (PEMFC) Differential electrochemical mass spectrometry Electro reduction Mesoporous Pt Methanol tolerant Oxygen reduction reaction Reaction mechanism Rotating ring-disk electrode Tafel slope analysis Direct methanol fuel cells (DMFC) Franceschini, Esteban Andrés Williams, Federico Jose Jobbagy, Matias Corti, Horacio Roberto Mesoporous Pt electrocatalyst for methanol tolerant cathodes of DMFC |
| topic_facet |
Electroreduction Fuel cells Mesoporous Pt Methanol Oxygen Carbon dioxide Catalyst poisoning Catalyst supports Catalysts Cathodes Efficiency Electrocatalysts Electrodes Electrolytic reduction Ethylene Fuel cells Mass spectrometry Mesoporous materials Methanol Oxygen Platinum Polyethylene oxides Proton exchange membrane fuel cells (PEMFC) Differential electrochemical mass spectrometry Electro reduction Mesoporous Pt Methanol tolerant Oxygen reduction reaction Reaction mechanism Rotating ring-disk electrode Tafel slope analysis Direct methanol fuel cells (DMFC) |
| description |
High activity mesoporous Pt electrocatalyst, having 2D-hexagonal mesostructure, was synthesized using a triblock poly(ethylene oxide)-b-poly(propylene oxide)-b-poly(ethylene oxide) copolymer (Pluronic F127®) template. The catalyst was characterized for the oxygen reduction reaction (ORR) in a rotating ring disk electrode (RRDE) configuration, obtaining a high efficiency of conversion to H2 O. The formation of H2O 2 during the ORR was low and a change in Tafel slope analysis indicated a change in the reaction mechanism with temperature. It was found, through differential electrochemical mass spectrometry (DEMS) analysis, that the mesoporous Pt catalysts exhibit a high methanol to CO2 conversion efficiency and high tolerance to CO poisoning. The procedure described in this work for preparing mesoporous Pt catalyst by electrodeposition provides a simple method for the generation of high-performance cathodes for direct methanol PEM fuel cells. © 2012 Elsevier Ltd. All rights reserved. |
| author |
Franceschini, Esteban Andrés Williams, Federico Jose Jobbagy, Matias Corti, Horacio Roberto |
| author_facet |
Franceschini, Esteban Andrés Williams, Federico Jose Jobbagy, Matias Corti, Horacio Roberto |
| author_sort |
Franceschini, Esteban Andrés |
| title |
Mesoporous Pt electrocatalyst for methanol tolerant cathodes of DMFC |
| title_short |
Mesoporous Pt electrocatalyst for methanol tolerant cathodes of DMFC |
| title_full |
Mesoporous Pt electrocatalyst for methanol tolerant cathodes of DMFC |
| title_fullStr |
Mesoporous Pt electrocatalyst for methanol tolerant cathodes of DMFC |
| title_full_unstemmed |
Mesoporous Pt electrocatalyst for methanol tolerant cathodes of DMFC |
| title_sort |
mesoporous pt electrocatalyst for methanol tolerant cathodes of dmfc |
| publishDate |
2012 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00134686_v71_n_p173_Franceschini http://hdl.handle.net/20.500.12110/paper_00134686_v71_n_p173_Franceschini |
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