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Understanding the Degradation Mechanisms of Membrane-Electrode-Assembly for High Temperature PEMFCs and Optimization of the Individual Components

Objective

The state of the art high temperature PEM fuel cell technology is based on H3PO4 imbibed polymer electrolytes. The most challenging areas towards the optimization of this technology are: (i) the development of stable long lasting polymer structures with high ionic conductivity and (ii) the design and development of catalytic layers with novel structures and architectures aiming to more active and stable electrochemical interfaces with minimal Pt corrosion. In this respect the objective of the present proposal is to understand the functional operation and degradation mechanisms of high temperature H3PO4 imbibed PEM and its electrochemical interface. The degradation mechanisms will be thoroughly studied and be focused on low loading Pt or nanostructured alloyed Pt electrocatalysts and catalytic layers, which will be supported on finely dispersed or structurally organized modified carbon supports (nanotubes, pyrolytic carbon). A stable electrocatalytic layer with full metal electrocatalyst utilization at the electrode/electrolyte interface can thus be achieved. The high temperature PEM membrane electrode assembly (MEA) will be based on a) PBI and variants as control group and b) the advanced state of the art MEAs based on aromatic polyethers bearing pyridine units. These MEAs have been developed optimized and tested at temperatures up to 200oC, where they exhibit stable and efficient operation. In the present proposal they will be studied and tested in single fuel cells with regards to their operating conditions and long term stability aiming to the development of a series of diagnostic tests that will lead in the design and development of an accelerated test and prediction tool for the MEA’s performance. If we can really understand the fundamentals of the failure mechanisms, then we can use that information to guide the development of new materials or we can develop system approaches to mitigate these failures.

Field of science

  • /natural sciences/chemical sciences/polymer science
  • /engineering and technology/environmental engineering/energy and fuels/fuel cell

Call for proposal

FCH-JU-2008-1
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Funding Scheme

JTI-CP-FCH - Joint Technology Initiatives - Collaborative Project (FCH)

Coordinator

ADVANCED ENERGY TECHNOLOGIES AE EREUNAS & ANAPTYXIS YLIKON & PROIONTONANANEOSIMON PIGON ENERGEIAS & SYNAFON SYMVOULEFTIKON Y PIRESION
Address
Stadiou 0 Municipality Of Patra
26504 Platani
Greece
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
EU contribution
€ 207 400
Administrative Contact
Stylianos Neophytides (Dr.)

Participants (7)

IDRYMA TECHNOLOGIAS KAI EREVNAS
Greece
EU contribution
€ 242 350
Address
N Plastira Str 100
70013 Irakleio
Activity type
Research Organisations
Administrative Contact
Joannis Kallitsis (Prof.)
PAUL SCHERRER INSTITUT
Switzerland
EU contribution
€ 226 888
Address
Forschungstrasse 111
5232 Villigen Psi
Activity type
Research Organisations
Administrative Contact
Irene Walthert (Ms.)
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
France
EU contribution
€ 222 507
Address
Rue Michel Ange 3
75794 Paris
Activity type
Research Organisations
Administrative Contact
Denis Fix (Mr.)
FUMATECH BWT GMBH
Germany
EU contribution
€ 184 456
Address
Carl Benz Strasse 4
74321 Bietigheim Bissingen
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Bernd Bauer (Dr.)
VYSOKA SKOLA CHEMICKO-TECHNOLOGICKA V PRAZE
Czechia
EU contribution
€ 149 905
Address
Technicka 5
166 28 Praha
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Anna Mittnerova (Ms.)
DLR-INSTITUT FUR VERNETZTE ENERGIESYSTEME EV
Germany
EU contribution
€ 209 730
Address
Carl Von Ossietzky Strasse 15
26129 Oldenburg
Activity type
Research Organisations
Administrative Contact
Peter Wagner (Dr.)
TECHNISCHE UNIVERSITAT DARMSTADT
Germany
EU contribution
€ 195 750
Address
Karolinenplatz 5
64289 Darmstadt
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Christina Roth (Dr.)