Sevjidsuren, G. ; Zils, S. ; Kaserer, S. ; Wolz, A. ; Ettingshausen, F. ; Dixon, D. ; Schoekel, A. ; Roth, C. ; Altantsog, P. ; Sangaa, D. ; Ganzorig, Ch. (2010)
Effect of Different Support Morphologies and Pt Particle Sizes in Electrocatalysts for Fuel Cell Applications.
In: Journal of Nanomaterials, 2010
doi: 10.1155/2010/852786
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The performance of a low temperature fuel cell is strongly correlated with parameters like the platinum particle size, platinum dispersion on the carbon support, and electronic and protonic conductivity in the catalyst layer as well as its porosity. These parameters can be controlled by a rational choice of the appropriate catalyst synthesis and carbon support.Only recently, particular attention has been given to the support morphology, as it plays an important role for the formation of the electrode structure. Due to their significantly different structure, mesoporous carbon microbeads (MCMBs) and multiwalled carbon nanotubes (MWCNTs) were used as supports and compared. Pt nanoparticles were decorated on these supports using the polyol method. Their size was varied by different heating times during the synthesis, and XRD, TEM, SEM, CV, and single cell tests used in their detailed characterization. A membrane-electrode assembly prepared with theMCMB did not show any activity in the fuel cell test, although the catalyst’s electrochemical activity was almost similar to the MWCNT. This is assumed to be due to the very dense electrode structure formed by this support material, which does not allow for sufficient mass transport.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2010 |
| Autor(en): | Sevjidsuren, G. ; Zils, S. ; Kaserer, S. ; Wolz, A. ; Ettingshausen, F. ; Dixon, D. ; Schoekel, A. ; Roth, C. ; Altantsog, P. ; Sangaa, D. ; Ganzorig, Ch. |
| Art des Eintrags: | Bibliographie |
| Titel: | Effect of Different Support Morphologies and Pt Particle Sizes in Electrocatalysts for Fuel Cell Applications |
| Sprache: | Englisch |
| Publikationsjahr: | 2010 |
| Verlag: | Hindawi Publishing Corporation |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Nanomaterials |
| Jahrgang/Volume einer Zeitschrift: | 2010 |
| DOI: | 10.1155/2010/852786 |
| Kurzbeschreibung (Abstract): | The performance of a low temperature fuel cell is strongly correlated with parameters like the platinum particle size, platinum dispersion on the carbon support, and electronic and protonic conductivity in the catalyst layer as well as its porosity. These parameters can be controlled by a rational choice of the appropriate catalyst synthesis and carbon support.Only recently, particular attention has been given to the support morphology, as it plays an important role for the formation of the electrode structure. Due to their significantly different structure, mesoporous carbon microbeads (MCMBs) and multiwalled carbon nanotubes (MWCNTs) were used as supports and compared. Pt nanoparticles were decorated on these supports using the polyol method. Their size was varied by different heating times during the synthesis, and XRD, TEM, SEM, CV, and single cell tests used in their detailed characterization. A membrane-electrode assembly prepared with theMCMB did not show any activity in the fuel cell test, although the catalyst’s electrochemical activity was almost similar to the MWCNT. This is assumed to be due to the very dense electrode structure formed by this support material, which does not allow for sufficient mass transport. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Erneuerbare Energien 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 25 Feb 2013 12:11 |
| Letzte Änderung: | 05 Mär 2013 10:05 |
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