N-Doped Carbon Xerogels as Pt Support for the Electro-Reduction of Oxygen

Durability and limited catalytic activity are key impediments to the commercialization of polymer electrolyte fuel cells. Carbon materials employed as catalyst support can be doped with different heteroatoms, like nitrogen, to improve both catalytic activity and durability. Carbon xerogels are nanop...

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Published in:Materials 2017-09, Vol.10 (9), p.1092
Main Authors: Alegre, Cinthia, Sebastián, David, Gálvez, María E, Baquedano, Estela, Moliner, Rafael, Aricò, Antonino S, Baglio, Vincenzo, Lázaro, María J
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cited_by cdi_FETCH-LOGICAL-c444t-f0e2942b224132eae27858fd532b64dedc50e9f1690695149b145384380384563
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container_end_page
container_issue 9
container_start_page 1092
container_title Materials
container_volume 10
creator Alegre, Cinthia
Sebastián, David
Gálvez, María E
Baquedano, Estela
Moliner, Rafael
Aricò, Antonino S
Baglio, Vincenzo
Lázaro, María J
description Durability and limited catalytic activity are key impediments to the commercialization of polymer electrolyte fuel cells. Carbon materials employed as catalyst support can be doped with different heteroatoms, like nitrogen, to improve both catalytic activity and durability. Carbon xerogels are nanoporous carbons that can be easily synthesized in order to obtain N-doped materials. In the present work, we introduced melamine as a carbon xerogel precursor together with resorcinol for an effective in-situ N doping (3-4 wt % N). Pt nanoparticles were supported on nitrogen-doped carbon xerogels and their activity for the oxygen reduction reaction (ORR) was evaluated in acid media along with their stability. Results provide new evidences of the type of N groups aiding the activity of Pt for the ORR and of a remarkable stability for N-doped carbon-supported Pt catalysts, providing appropriate physico-chemical features.
doi_str_mv 10.3390/ma10091092
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title N-Doped Carbon Xerogels as Pt Support for the Electro-Reduction of Oxygen
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