Pt–Ru electrocatalysts supported on ordered mesoporous carbon for direct methanol fuel cell
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| Title: | Pt–Ru electrocatalysts supported on ordered mesoporous carbon for direct methanol fuel cell |
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| Authors: | Salgado, J.R.C.1, Alcaide, F.2, Álvarez, G.2, Calvillo, L.3, Lázaro, M.J.3, Pastor, E.1 epastor@ull.es |
| Source: | Journal of Power Sources. Jul2010, Vol. 195 Issue 13, p4022-4029. 8p. |
| Subjects: | Metal catalysts, Mesoporous materials, Carbon, Fuel cells, Methanol as fuel, X-ray spectroscopy, X-ray diffraction, Electrochemistry |
| Abstract: | Abstract: Pt–Ru electrocatalysts supported on ordered mesoporous carbon (CMK-3) were prepared by the formic acid method. Catalysts were characterized applying energy dispersive X-ray analyses (EDX) and X-ray diffraction (XRD). Methanol and carbon monoxide oxidation was studied electrochemically by cyclic voltammetry, and current–time curves were recorded in a methanol solution in order to establish the activity towards this reaction under potentiostatic conditions. The physicochemical and electrochemical properties of the Pt–Ru catalysts supported on CMK-3 carbon were compared with those of electrocatalysts supported on Vulcan XC-72 and commercial catalyst from E-TEK. Additionally, in order to complete this study, Pt electrocatalysts supported on CMK-3 and Vulcan XC-72 were prepared by the same method and were used as reference. Results showed that the Pt–Ru/CMK-3 catalyst presented the best electrocatalytic activity towards the CO oxidation and, therefore, good perspectives to its application in DMFC anodes. On the other hand, the activity of the Pt–Ru/CMK-3 catalyst towards methanol oxidation was higher than that of the commercial Pt–Ru/C (E-TEK) catalyst on all examined potentials, confirming the potential of the bimetallic catalysts supported on mesoporous carbons. [Copyright &y& Elsevier] |
| Copyright of Journal of Power Sources is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 48725570 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Pt–Ru electrocatalysts supported on ordered mesoporous carbon for direct methanol fuel cell – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Salgado%2C+J%2ER%2EC%2E%22">Salgado, J.R.C.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Alcaide%2C+F%2E%22">Alcaide, F.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Álvarez%2C+G%2E%22">Álvarez, G.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Calvillo%2C+L%2E%22">Calvillo, L.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Lázaro%2C+M%2EJ%2E%22">Lázaro, M.J.</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Pastor%2C+E%2E%22">Pastor, E.</searchLink><relatesTo>1</relatesTo><i> epastor@ull.es</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Power+Sources%22">Journal of Power Sources</searchLink>. Jul2010, Vol. 195 Issue 13, p4022-4029. 8p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Metal+catalysts%22">Metal catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Mesoporous+materials%22">Mesoporous materials</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon%22">Carbon</searchLink><br /><searchLink fieldCode="DE" term="%22Fuel+cells%22">Fuel cells</searchLink><br /><searchLink fieldCode="DE" term="%22Methanol+as+fuel%22">Methanol as fuel</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+spectroscopy%22">X-ray spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22Electrochemistry%22">Electrochemistry</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: Pt–Ru electrocatalysts supported on ordered mesoporous carbon (CMK-3) were prepared by the formic acid method. Catalysts were characterized applying energy dispersive X-ray analyses (EDX) and X-ray diffraction (XRD). Methanol and carbon monoxide oxidation was studied electrochemically by cyclic voltammetry, and current–time curves were recorded in a methanol solution in order to establish the activity towards this reaction under potentiostatic conditions. The physicochemical and electrochemical properties of the Pt–Ru catalysts supported on CMK-3 carbon were compared with those of electrocatalysts supported on Vulcan XC-72 and commercial catalyst from E-TEK. Additionally, in order to complete this study, Pt electrocatalysts supported on CMK-3 and Vulcan XC-72 were prepared by the same method and were used as reference. Results showed that the Pt–Ru/CMK-3 catalyst presented the best electrocatalytic activity towards the CO oxidation and, therefore, good perspectives to its application in DMFC anodes. On the other hand, the activity of the Pt–Ru/CMK-3 catalyst towards methanol oxidation was higher than that of the commercial Pt–Ru/C (E-TEK) catalyst on all examined potentials, confirming the potential of the bimetallic catalysts supported on mesoporous carbons. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Power Sources is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jpowsour.2010.01.001 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 8 StartPage: 4022 Subjects: – SubjectFull: Metal catalysts Type: general – SubjectFull: Mesoporous materials Type: general – SubjectFull: Carbon Type: general – SubjectFull: Fuel cells Type: general – SubjectFull: Methanol as fuel Type: general – SubjectFull: X-ray spectroscopy Type: general – SubjectFull: X-ray diffraction Type: general – SubjectFull: Electrochemistry Type: general Titles: – TitleFull: Pt–Ru electrocatalysts supported on ordered mesoporous carbon for direct methanol fuel cell Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Salgado, J.R.C. – PersonEntity: Name: NameFull: Alcaide, F. – PersonEntity: Name: NameFull: Álvarez, G. – PersonEntity: Name: NameFull: Calvillo, L. – PersonEntity: Name: NameFull: Lázaro, M.J. – PersonEntity: Name: NameFull: Pastor, E. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2010 Type: published Y: 2010 Identifiers: – Type: issn-print Value: 03787753 Numbering: – Type: volume Value: 195 – Type: issue Value: 13 Titles: – TitleFull: Journal of Power Sources Type: main |
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