About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Materials for Energy Conversion and Storage 2023
|
Presentation Title |
Correlating Microstructural Evolution in Reversible Solid Oxide Electrochemical Cells to their Performance |
Author(s) |
Jillian R. Mulligan, Ayesha Akter, John-In Lee, Uday Pal, Srikanth Gopalan, Soumendra Basu |
On-Site Speaker (Planned) |
Jillian R. Mulligan |
Abstract Scope |
Reversible Solid Oxide Electrochemical Cells (RSOEC) with nickelate-based oxygen electrodes and Ni/YSZ fuel electrodes have been subjected to long term operation in the electrolyzer (SOEC) mode, as well as periodic switching between solid oxide fuel cell (SOFC) and SOEC operational modes. Microstructural changes such as interfacial reactions, delamination, grain coarsening, Ni loss/migration, and changes in the percolated Ni phase, have been studied by SEM, TEM, XRD and FIB/SEM-based 3-D reconstruction. These microstructural changes will be correlated to changes in the electrochemical performance of these cells. |
Proceedings Inclusion? |
Planned: |
Keywords |
Energy Conversion and Storage, High-Temperature Materials, Composites |