English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/134944
logo share SHARE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Sulfurized carbon xerogels as Pt support with enhanced activity for fuel cell applications

AuthorsAlegre Gresa, Cinthia; Sebastián del Río, David ; Gálvez Parruca, María Elena; Moliner Álvarez, Rafael; Lázaro Elorri, María Jesús
Carbon xerogel
Fuel cell
Oxygen reduction reaction
Methanol oxidation reaction
Issue Date31-Mar-2016
CitationApplied Catalysis B - Environmental 192: 260-267 (2016)
AbstractCarbon xerogels represent nowadays an outstanding alternative to carbon blacks for the preparation of efficient fuel cell electrocatalysts, due to their easily tunable and well developed mesoporous structure. To further improve both activity and durability of Pt/C catalysts, the introduction of heteroatoms (such as O, N, S, P, B, etc.) in the structure of carbon materials has been proposed. In the present work, highly mesoporous carbon xerogels (CXGs) have been subjected to a sulfurization process with elemental sulfur. The insertion of S into the carbon matrix does not compromise their mesoporous structure. Pt catalysts supported on sulfurized carbon xerogels show enhanced catalytic activity towards both the methanol electro-oxidation and the oxygen electro-reduction reactions, exceeding not only the performance of the catalyst supported on the bare xerogel, but also of the catalyst supported on a commercial carbon black. The sulfurization treatment is also effective in improving the resistance of Pt/CXG catalysts towards corrosion phenomena occurring at the fuel cell cathode.
Publisher version (URL)http://dx.doi.org/10.1016/j.apcatb.2016.03.070
Appears in Collections:(ICB) Artículos
Files in This Item:
File Description SizeFormat 
Alegre_App.Catal.B_preprint.doc8,71 MBMicrosoft WordView/Open
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.