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Fabrication of anode supported solid oxide electrolysis cell with the co-tape casting technique and study on co-electrolysis characteristics.
- Source :
-
Journal of Power Sources . Jun2023, Vol. 569, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- Solid Oxide Electrolysis Cell (SOEC) is an efficient green hydrogen production technology, which is a reverse of Solid Oxide Fuel Cell (SOFC). In this paper, an anode-supported SOEC produced via multi-layer organic co-tape casting with co-sintering process is investigated for high temperature steam electrolysis, carbon dioxide electrolysis, and co-electrolysis. SOEC cathode must maintain its electrocatalytic activity in a high temperature and humidity condition. La 0.75 Sr 0.25 Cr 0.5 Mn 0.5 O 3-δ (LSCM) is one of the most promising cathode materials because of its superior electrocatalytic ability and redox stability. The anode-supported structure of electrolysis cell reduces ohmic resistance obviously and LSCM cathode exhibits good catalytic performance. To evaluate the performance of co-electrolysis, a continuous voltage of 1 V is applied for 256 h with 60% H 2 O and 40% CO 2 at 750 °C. The anode-supported SOEC with LSM((La 0.8 Sr 0.2) 0.95 Mn 0.5 O 3-δ)/LSM-YSZ(Zr 0.92 Y 0.08 O 2-δ)/YSZ/LSCM structure has good electrochemical performance and durability under co-electrolysis conditions combined with the distribution relaxation of time analysis of impedance spectra. • An anode-supported SOEC was fabricated by multi-layer organic co-tape casting. • The cell's structure was LSM/LSM-YSZ/YSZ/LSCM. • The anode-supported SOEC with LSCM cathode was used for co-electrolysis. • LSCM cathode showed good catalytic performance and stability of the structure. • The current density is about 2 A cm−2 after constant electrolysis 200 h. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03787753
- Volume :
- 569
- Database :
- Academic Search Index
- Journal :
- Journal of Power Sources
- Publication Type :
- Academic Journal
- Accession number :
- 163046279
- Full Text :
- https://doi.org/10.1016/j.jpowsour.2023.232912