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Use of single wall carbon nanohorns in polymeric electrolyte fuel cells

TitoloUse of single wall carbon nanohorns in polymeric electrolyte fuel cells
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2011
AutoriBrandão, L., Passeira C., Mirabile Gattia Daniele, and Mendes A.
RivistaJournal of Materials Science
Volume46
Paginazione7198-7205
ISSN00222461
Parole chiaveAC arc discharge, Amorphous carbon, Carbon black, Carbon support, Catalyst activity, Differential thermal analysis, Direct methanol fuel cells (DMFC), Electrocatalyst support, Electrocatalysts, Ethylene, Ethylene glycol, Gas fuel purification, Graphitic carbons, Methanol, Methanol fuels, Nanohorns, Platinum, Polyelectrolytes, Polymer electrolyte fuel cells, Polymeric electrolyte fuel cells, Polymers, Proton exchange membrane fuel cells (PEMFC), Single wall carbon nanohorn, XRD
Abstract

Single wall carbon nanohorns (SWNH), produced by AC arc discharge in air, were used as Pt and PtRu supports in polymer electrolyte membrane fuel cells (PEMFC). These electrocatalysts were compared with equivalent electrocatalysts supported on commercial carbon back. The SWNH were characterized by differential thermal analysis (DTA), TEM, SEM, and XRD. The produced SWNH were 84.5 wt% pure, containing 3 wt% of amorphous carbon and 12.5 wt% of graphitic carbon. SWNH were used as electrocatalyst supports and tested in the electrodes of two types of polymer electrolyte fuel cells: H2-fed PEMFC and direct methanol fuel cells (DMFC). The electrocatalyst nanoparticles anchored on both carbon supports were ca. 2.5 nm in diameter obtained by employing ethylene glycol as the reducing agent. The use of SWNH showed catalytic activities 60% higher than using carbon black as the electrocatalyst support in both types of fuel cells. © 2011 Springer Science+Business Media, LLC.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-80052072528&doi=10.1007%2fs10853-010-4638-6&partnerID=40&md5=799bfdd9f6b274534721a24921166c72
DOI10.1007/s10853-010-4638-6
Citation KeyBrandão20117198