Cr Poisoning On Nd2Ni0.95Cu0.05O4+δ Cathode for Solid Oxide Fuel Cells

In this study, Nd₂Ni_1-xCu_xO_4+δ (x=0, 0.05, 0.1, and 0.2) layered perovskite powders were synthesized by the glycine nitrate process (GNP) and the chromium poisoning effect on the electrochemical performance of the Nd₂Ni_0.95Cu_0.05O_4+δ and La_0.6Sr_0.4Co_0.2Fe_0.88O_3-δ cathodes were investigated. In the case of the LSCF cathode, the strontium chromite phase formed after the exposure of the gaseous chromium species, while there was no additional phase in the Nd₂Ni_0.95Cu_0.05O_4+δ cathode. The area specific resistance (ASR) of the Nd₂Ni_0.95Cu_0.05O_4+δ cathode did not change significantly after the exposure of the gaseous chromium species at 800°C