Work

Green syngas production with metal-supported solid oxide cells

Year: 2025

Type: article

Abstract: The Solid Oxide Electrolyser (SOE) technology may play an essential role in converting H2O and CO2 into green syngas, essential to developing carbon-neutral fuels. Metal-Supported Cells (MSCs) have generated large interest thanks to their cost-effective materials and superior mechanical properties. MSCs with fuel electrodes based on porous Ni-free electrode backbones infiltrated with Ni/GDC (Gadolinium Doped Ceria) electro-catalysts have been developed at DTU Energy. These types of MSC showed excellent behaviour in steam electrolysis mode. The reduced nickel content is a promising argument that these kinds of fuel electrodes are less active for carbon-related reactions (such as methanation and carbon deposition), making them suitable as a robust cathode in co-electrolysis for syngas production. This study evaluates for the first time the operation of MSCs in co-electrolysis mode, specifically the initial performances and the durability of two types of metal-supported cells at 650 °C, while comparing them to a commercial state-of-the-art ceramic cell with Ni/YSZ fuel electrode. The tests showed promising results, with the MSCs exhibiting similar or lower degradation if compared to the commercial cell.

Source: Journal of Power Sources

DOI: 10.1016/j.jpowsour.2025.237825

Authors: Riccardo Caldogno, Ilaria Giaccardo, Xiufu Sun, Anke Hagen

Institution: Technical University of Denmark

Language: English

Topic: Advancements in Solid Oxide Fuel Cells

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action

Open Access status: hybrid

Estimated APC paid: $4,230