Improved Ionic Transport Using a Novel Semiconductor Co_0.6Mn_0.4Fe_0.4Al_1.6O₄ and Its Heterostructure with Zinc Oxide for Electrolyte Membrane in LT-CFCs.

ABSTRACT: Improving the ionic conductivity and slow oxygen reduction electro-catalytic activity of reactions occurring at low operating temperature would do wonders for the widespread use of low-operating temperature ceramic fuel cells (LT-CFCs; 450-550 °C). In this work, we present a novel semiconductor heterostructure composite made of a spinel-like structure of Co_0.6Mn_0.4Fe_0.4Al_1.6O₄ (CMFA) and ZnO, which functions as an effective electrolyte membrane for solid oxide fuel cells. For enhanced fuel cell performance at sub-optimal temperatures, the CMFA-ZnO heterostructure composite was developed. We have shown that a button-sized SOFC fueled by H₂ and ambient air can provide 835 mW/cm² of power and 2216 mA/cm² o

SUBMITTER: Dong Y 

PROVIDER: S-EPMC10304222 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature