guest ::
| Home > Publications database > Praseodymium Doped Ceria as Nickel-free Fuel Electrode Material for Solid Oxide Electrolysis Cells |
| Home > Publications database > Praseodymium Doped Ceria as Nickel-free Fuel Electrode Material for Solid Oxide Electrolysis Cells |
| Talk (non-conference) (Other) | FZJ-2025-00374 |
; ; ; ;
2024
Abstract: Solid oxide electrolysis cells (SOECs) are promising electrochemical conversion devices for Power-to-Gas technologies but face degradation issues with conventional nickel-based fuel electrodes (e.g. Ni-YSZ or Ni-GDC) at high current densities. This research investigates the potential of using praseodymium doped ceria (PDC) as a nickel-free alternative. For this purpose, three different materials were tested: 5% lanthanum and 5% praseodymium doped ceria (LPDC), 10% praseodymium doped ceria (PDC10), and 30% praseodymium doped ceria (PDC30). In an electrochemical performance evaluation under steam electrolysis conditions at 900°C, PDC10 outperformed both LPDC (-1.37 A/cm²) and PDC30 (-1.1 A/cm²), achieving a current density of -1.5 A/cm² at 1.5 V. Future work will include structural and electrochemical analysis of all three samples to evaluate their physico-chemical behavior at a fundamental level. In conclusion, these findings suggest that praseodymium-doped ceria could be a promising candidate for efficient and durable fuel electrode materials in SOECs.
|
The record appears in these collections: |