Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7718702 | International Journal of Hydrogen Energy | 2014 | 6 Pages |
Abstract
Dense electrolyte and porous cathode coatings by room-temperature operating aerosol deposition process are applied and optimized for metal-supported solid oxide fuel cell fabrication. Porous metal support of FeCr-based alloy including (La, Sr)TiO3 diffusion barrier and (Ce, Gd)O2âδ-Ni anode were prepared using tape-casting process and co-fired in reducing atmosphere. Dense (Zr, Y)O2âδ electrolyte and porous (La, Sr)(Co, Fe)O3âδ cathode were prepared using aerosol deposition on it. The La0.2Sr0.8TiO3 diffusion barrier effectively suppressed the reaction between the FeCr-based alloy support and Ni in the anode during co-firing at 1300 °C. Room-temperature deposition of the electrolyte and cathode layers in low vacuum conditions effectively prevented metal support degradation and cathode decomposition. Microstructural analysis of the anode, electrolyte, and cathode layers is presented. An open circuit voltage of 1.08 V and maximum power density of 0.71 W/cm2 were achieved at 750 °C.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Jong-Jin Choi, Jungho Ryu, Byung-Dong Hahn, Cheol-Woo Ahn, Jong-Woo Kim, Woon-Ha Yoon, Dong-Soo Park,