A new study from the Instituto de Tecnología Química (UPV-CSIC) team within the CO₂SMOS consortium reports a powerful experimental approach to evaluate oxide–metal composites under real operating conditions.
By combining in situ synchrotron XRD with simultaneous dilatometry, the authors directly link phase evolution, microstructure, and bulk thermal expansion in CGO–Cu cermets up to 800 °C.
Key result: the CGO–Cu (59:41) composite exhibits a nearly temperature-independent thermal expansion coefficient and minimal high-temperature shrinkage, making it highly compatible with CGO electrolytes.
The study showcases this combined methodology as a robust tool for designing thermomechanically stable electrodes for high-temperature electrochemical applications, advancing durable and compatible energy materials beyond the lifetime of CO₂SMOS.
Read the full study in open access here.
