Enhancing power density in protonic ceramic fuel cells with porous interlayer
Year: 2025
Type: article
Abstract: This study addresses the critical need to enhance the performance of protonic ceramic fuel cells (PCFCs) by engineering a porous interlayer between the cathode and electrolyte. A porous interlayer composed of the electrolyte material, barium cerium zirconium yttrium oxide electrolyte (BaCe 0.6 Zr 0.2 Y 0.2 O 3-δ , BCZY) was prepared at various calcination temperatures to optimize its microstructure. With the optimized calcination temperature of 1350 °C, the porous interlayer forms effective contact with the lanthanum strontium cobalt ferrite cathode (La 0.8 Sr 0.2 Co 0.8 Fe 0.2 O 3-δ , LSCF), enhancing the number of triple-phase boundary reaction sites for oxygen reduction. A PCFC with an optimal porous interlayer achieved a peak power density of 517 mW/cm 2 at 800 °C, representing an 11.6 % improvement over the fuel cell without the porous interlayer. This enhancement is attributed to the extension of electrochemically active areas, which reduces polarization resistance by 23.8 %.
Authors: Po-Chun Cheng, Jia-En Wu, Ching-Hsien Lin, Kan-Rong Lee, Po-Kai Lan, Nafisah Osman, Sheng-Wei Lee, Chung-Jen Tseng
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,730
OpenAlex ID: W4409945804