WP4 Deliverables

D4.1– Initial HD-specific PFSA and hydrocarbon ionomers and membranes (M12) - CONFIDENTIAL

Public Abstract: This report describes the implementation in-line of the inductively-coupled plasma mass spectrometry (ICP-MS) with an electrochemical cell which mimics the conditions of the rotating-disk electrode (RDE) setup, and its application to Pt/C and Pt-Nd/C electrocatalysts. The goal is to observe the dissolution of metal during electrochemical stimulation.

D4.2: Initial PFSA Membrane to Extend Durability Beyond That of the Reference Membrane (M15) - CONFIDENTIAL

Public Abstract: The initial membrane development work in HIGHLANDER is described within this report, including selection of bill of materials and manufacturing processes. Some of the processing conditions used led to early failures which have been investigated and the root cause identified; further. 

D4.3: Immobilised radical scavengers (M21) - CONFIDENTIAL

Public Abstract: Protecting polymers from radical attack is crucial for preventing degradation and maintaining performance, especially in proton exchange membranes (PEMs) for fuel cells. These membranes are vulnerable to radical attacks during PEM-FC operations, causing depolymerisation, holes, short circuits, and reduced lifespan. This report examines how cerium oxide-based radical scavengers protect PFSA ionomers and enhance membrane longevity. Syensqo is developing Aquivion® RSP, a cerium oxide-based additive, to minimise mobility and prevent PEM degradation. Preliminary results show superior durability and low cerium release with Aquivion® RSP