Study of cunizngdce-nanocomposite anode for low temperature SOFC

Abstract

Composite electrodes of Cu 0.16Ni 0.27Zn 0.37Ce 0.16Gd 0.04 (CNZGC) oxides have been successfully synthesized by solid state reaction method as anode material for low temperature solid oxide fuel cell (LTSOFC). These electrodes are characterized by XRD followed by sintering at various time periods and temperatures. Particle size of optimized composition was calculated 40-85 nm and sintered at 800 °C for 4 hours. Electrical conductivity of 4.14 S/cm was obtained at a temperature of 550 °C by the 4-prob DC method. The activation energy was calculated 4×10-2 eV at 550 °C. Hydrogen was used as fuel and air as oxidant at anode and cathode sides respectively. I-V/I-P curves were obtained in the temperature range of 400-550 °C. The maximum power density was achieved for 570 mW/cm2 at 550 °C. Copyright © 2012 American Scientific Publishers.