Electrochemical behaviour of ionic liquid functionalized carbon supported Pt-Ru catalysts

Esteves, M. Alexandra; de Sá, A.I.; Rangel, C. M.

http://hdl.handle.net/10400.9/1999

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Authors

Esteves, M. Alexandra

de Sá, A.I.

Rangel, C. M.

Abstract(s)

Ionic liquid (IL) functionalized carbon supported nanocatalysts, including platinum-ruthenium catalysts, have been under investigation to achieve better catalytic performance on polymer electrolyte membrane fuel cells. Ionic liquids have particular physical properties, which usually improve the stabillity and dispersion of metal nanosized particles, providing an increase of the electrochemical active surface area. In this work, the synthesis and the electrochemical behaviour of two new ionic liquid functionalizated carbon supported Pt-Ru nanocatalysts is investigated regarding the methanol oxidation reaction. Preliminary obtained results show that IL functionalization of carbon can produce supported catalysts with improved performances depending on the ionic liquid and on the reduction process used to produce the catalyst nanosized particles.

Keywords

Pt-Ru electrocatalysts Ionic liquids Polymer electrolyte membrane Fuel cells

URI

http://hdl.handle.net/10400.9/1999

Citation

Esteves, M.A.; Sá, A.I. de; Rangel, C.M. Electrochemical behaviour of ionic liquid functionalized carbon supported Pt-Ru catalysts. In: HYCELTEC'2013 - IV Iberian Symposium on Hydrogen, Fuel Cells and Advanced Batteries, Book of Abstracts, Estoril, 26-28 June, 2013