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New mesoporous carbon support for durable PEMFC

Technological challenge: Advanced hydrogen and fuel-cells solutions for energy transition (learn more)

Department: Département de l'Electricité et de l'Hydrogène pour les Transports (LITEN)

Laboratory: Laboratoire Composants Pemfc

Start Date: 01-09-2022

Location: Grenoble

CEA Code: SL-DRT-22-0609

Contact: marie.heitzmann@cea.fr

In a context of accelerating developments associated with the PEMFC fuel cell for the decarbonation of mobility, the identified barriers that are the cost and durability of systems remain to be lifted. To do this, active research is carried out on active materials and in particular on platinum catalyst supports. The objective of this thesis is to work on the durability of PEMFC active layers using catalyst supports that are robust to corrosion. The chosen strategy lies in finding a compromise between performance and durability by synthesizing high-performance carbon supports with a mesoporous structure (2-50nm) in order to stabilize metal nanoparticles, graphitic domains to gain in chemical stability and electronic conductivity and a morphology adapted to a good transfer of matter. We will favor a low-cost synthesis, that is to say without sacrificial support. It will be necessary to develop the most suitable functionalization method for these new carbon supports and then evaluate the associated catalytic performance and durability in order to understand the relationships between the structure of the supported catalysts and their properties. Ultimately, it will be a question of identifying the key parameters for improving at iso-performance these new catalysts.

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