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PEM Fuel Cells Electrodes Preparation Using Oxygen Plasma Treated Graphene Related Material Serving as Catalyst Support for Platinum Nanoparticles

  • This experimental work deals with the preparation and investigation of PEM fuel cell electrodes, which are obtained using Graphene Related Material (GRM) serving as catalyst support material for platinum nanoparticles. The applied GRM belong to the group of carbon nanofibers and exhibits a helical-ribbon structure with dimensions of 50 nm in diameter and an average length up to a few µm. Furthermore, utilized GRM provide a superior graphitisation degree of about 100 %, which leads to both high corrosion resistance and low ohmic resistance. Material stability plays one of the main roles for long term fuel cell operation, whereby a great electrical catalyst contact combined with high specific surface area yields in high fuel cell performances. Prior to GRM dispersion and deposition onto a gas diffusion layer, the graphene structures are functionalized by oxygen plasma treatment. Through this step, functional oxygen groups are generated onto the GRM outer surface providing an improved hydrophilic behaviour and facilitating the GRM suspension preparation. In addition, the oxygen groups act as anchors for platinum nanoparticles which are subsequently deposited onto the GRM surface through a pulse electrodeposition process. Membrane electrode assemblies produced with the prepared electrodes are investigated in-situ in a PEM fuel cell test bench.

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Metadaten
Author:Pit Podleschny, Roxana Muntean, Ulrich Rost, Michael Brodmann
Parent Title (German):Konferenz: NMWP Young Academics: Graphen und 2D-Materialien, 30.-31. August 2016 in Siegen
Document Type:Conference Proceeding
Language:English
Date of Publication (online):2017/05/10
Date of first Publication:2016/08/31
Publishing Institution:Westfälische Hochschule Gelsenkirchen Bocholt Recklinghausen
Release Date:2017/05/10
Note:
Die orale Präsentation auf der NMWP Young Academics in Siegen (30.-31. August) hatte die Einladung zur 7. NRW Nanokonferenz (7.-8. Dezember) mit einem Poster und einem Paper zur Folge (vgl. auch: Rost, U.; Brodmann, M.; Zekorn, B.; Peinecke, V.; Radev, I.; Podleschny, P. (2016): PEM fuel cell electrode preparation using oxygen plasma treated graphene related material serving as catalyst support for platinum nanoparticles).
Dabei war die Vorgabe, dass sich der Titel nicht ändern durfte.
Departments / faculties:Institute / Westfälisches Energieinstitut
Licence (German):License LogoEs gilt das Urheberrechtsgesetz

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