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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Detalles Bibliográficos
Autores principales:	Jobbagy, Matias, Corti, Horacio Roberto
Publicado:	2012
Materias:	Cationic polyelectrolyte CO stripping Differential electrochemical mass spectroscopies Electrochemical active surface areas Electrochemical characterizations High dispersion Homogeneous distribution Mesoporous carbon Metal particle Methanol electrooxidation Methanol oxidation currents Powder X ray diffraction Pt-Ru catalysts Pt-Ru nanoparticles Reduction method Resorcinol formaldehydes Soft template Surface characterization Turnover frequency Carbon dioxide Carbonization Catalysts Chronoamperometry Conversion efficiency Cyclic voltammetry Electrooxidation Mass spectrometry Mesoporous materials Methanol Phenols Platinum alloys Transmission electron microscopy X ray diffraction Carbon
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19327447_v116_n6_p4097_Viva http://hdl.handle.net/20.500.12110/paper_19327447_v116_n6_p4097_Viva
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_19327447_v116_n6_p4097_Viva
record_format	dspace
spelling	paper:paper_19327447_v116_n6_p4097_Viva2023-06-08T16:31:33Z Electrochemical characterization of PtRu nanoparticles supported on mesoporous carbon for methanol electrooxidation Jobbagy, Matias Corti, Horacio Roberto Cationic polyelectrolyte CO stripping Differential electrochemical mass spectroscopies Electrochemical active surface areas Electrochemical characterizations High dispersion Homogeneous distribution Mesoporous carbon Metal particle Methanol electrooxidation Methanol oxidation currents Powder X ray diffraction Pt-Ru catalysts Pt-Ru nanoparticles Reduction method Resorcinol formaldehydes Soft template Surface characterization Turnover frequency Carbon dioxide Carbonization Catalysts Chronoamperometry Conversion efficiency Cyclic voltammetry Electrooxidation Mass spectrometry Mesoporous materials Methanol Phenols Platinum alloys Transmission electron microscopy X ray diffraction Carbon 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. 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_19327447_v116_n6_p4097_Viva http://hdl.handle.net/20.500.12110/paper_19327447_v116_n6_p4097_Viva
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Cationic polyelectrolyte CO stripping Differential electrochemical mass spectroscopies Electrochemical active surface areas Electrochemical characterizations High dispersion Homogeneous distribution Mesoporous carbon Metal particle Methanol electrooxidation Methanol oxidation currents Powder X ray diffraction Pt-Ru catalysts Pt-Ru nanoparticles Reduction method Resorcinol formaldehydes Soft template Surface characterization Turnover frequency Carbon dioxide Carbonization Catalysts Chronoamperometry Conversion efficiency Cyclic voltammetry Electrooxidation Mass spectrometry Mesoporous materials Methanol Phenols Platinum alloys Transmission electron microscopy X ray diffraction Carbon
spellingShingle	Cationic polyelectrolyte CO stripping Differential electrochemical mass spectroscopies Electrochemical active surface areas Electrochemical characterizations High dispersion Homogeneous distribution Mesoporous carbon Metal particle Methanol electrooxidation Methanol oxidation currents Powder X ray diffraction Pt-Ru catalysts Pt-Ru nanoparticles Reduction method Resorcinol formaldehydes Soft template Surface characterization Turnover frequency Carbon dioxide Carbonization Catalysts Chronoamperometry Conversion efficiency Cyclic voltammetry Electrooxidation Mass spectrometry Mesoporous materials Methanol Phenols Platinum alloys Transmission electron microscopy X ray diffraction Carbon Jobbagy, Matias Corti, Horacio Roberto Electrochemical characterization of PtRu nanoparticles supported on mesoporous carbon for methanol electrooxidation
topic_facet	Cationic polyelectrolyte CO stripping Differential electrochemical mass spectroscopies Electrochemical active surface areas Electrochemical characterizations High dispersion Homogeneous distribution Mesoporous carbon Metal particle Methanol electrooxidation Methanol oxidation currents Powder X ray diffraction Pt-Ru catalysts Pt-Ru nanoparticles Reduction method Resorcinol formaldehydes Soft template Surface characterization Turnover frequency Carbon dioxide Carbonization Catalysts Chronoamperometry Conversion efficiency Cyclic voltammetry Electrooxidation Mass spectrometry Mesoporous materials Methanol Phenols Platinum alloys Transmission electron microscopy X ray diffraction Carbon
description	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.
author	Jobbagy, Matias Corti, Horacio Roberto
author_facet	Jobbagy, Matias Corti, Horacio Roberto
author_sort	Jobbagy, Matias
title	Electrochemical characterization of PtRu nanoparticles supported on mesoporous carbon for methanol electrooxidation
title_short	Electrochemical characterization of PtRu nanoparticles supported on mesoporous carbon for methanol electrooxidation
title_full	Electrochemical characterization of PtRu nanoparticles supported on mesoporous carbon for methanol electrooxidation
title_fullStr	Electrochemical characterization of PtRu nanoparticles supported on mesoporous carbon for methanol electrooxidation
title_full_unstemmed	Electrochemical characterization of PtRu nanoparticles supported on mesoporous carbon for methanol electrooxidation
title_sort	electrochemical characterization of ptru nanoparticles supported on mesoporous carbon for methanol electrooxidation
publishDate	2012
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19327447_v116_n6_p4097_Viva http://hdl.handle.net/20.500.12110/paper_19327447_v116_n6_p4097_Viva
work_keys_str_mv	AT jobbagymatias electrochemicalcharacterizationofptrunanoparticlessupportedonmesoporouscarbonformethanolelectrooxidation AT cortihoracioroberto electrochemicalcharacterizationofptrunanoparticlessupportedonmesoporouscarbonformethanolelectrooxidation
_version_	1768545303772790784

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

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