NDLI: Progress on the development of uniform distributed Pd electroless based catalysts on MEA for PEMFC application

Content Provider	Springer Nature Link
Author	Salomé, Sónia Rego, Rosa Querejeta, Amaia Alcaide, Francisco Oliveira, M. Cristina
Copyright Year	2014
Abstract	Envisaging the scale-up production of fuel cell electrodes, it was established an electrode manufacturing method that enables a uniform distribution of Pd-based catalyst over the MEA, ensuring simultaneously a low catalyst loading. The new procedure relies on the direct immobilization of the catalyst on the gas diffusion substrate by the electroless deposition after substrate activation by the electrodeposition of metal nucleus of Pd using the galvanostatic mode. The effect of the novel method on the catalyst distribution uniformity, morphology, and electrocatalytic activity towards the oxygen reduction reaction (ORR) in 0.1 M HClO4 solution is compared to samples prepared by the conventional Sn/Pd sensitization—activation route. The performance of the PEMFC containing the same Pd load (0.09 mg cm−2) reveals to be slightly higher on depositing the Pd nucleus by the galvanostatic electrodeposition than by the conventional sensitization/activation method. The new method opens up new approaches to extend the electroless deposition to the preparation of a wide range of alloy catalysts for the cathode and anode sides of PEMFCs.
Starting Page	2721
Ending Page	2729
Page Count	9
File Format	PDF
ISSN	14328488
Journal	Journal of Solid State Electrochemistry
Volume Number	18
Issue Number	10
e-ISSN	14330768
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-06-11
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Palladium Pd-P Electroless Gas diffusion electrode Oxygen reduction reaction PEMFC Physical Chemistry Electrochemistry Energy Storage Characterization and Evaluation of Materials Analytical Chemistry Condensed Matter Physics
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science Electrical and Electronic Engineering Electrochemistry

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