Abstract
It is a big challenge to develop composite materials with high catalytic activity and stability in a fast and simple way in the field of solid oxide fuel cells (SOFCs). In this paper, Pr2CuO4-Pr6O11 composites are prepared by a novel one-pot synthesis method. The temperature dependent phase evolution of the composite material is studied, and the oxygen reduction reaction (ORR) properties are characterized in detail by electrochemical impedance spectroscopy combining with the distribution of relaxation time analysis. The decoration of Pr6O11 effectively inhibits the coarsening of Pr2CuO4 particles, enlarging the specific surface area and thereby promoting the oxygen adsorption capability of the composite cathode. Compared to Pr2CuO4, the polarization resistance of Pr2CuO4-20%Pr6O11 is 0.07 Ω cm2 at 700 °C, and the power (current) density reachs to 0.97 W cm−2 (1.62 A cm−2) at 0.6 V for the anode supported fuel cell. This result proves that one-pot synthesis method is an effective strategy to design cathode materials with high activity, and Pr2CuO4-20%Pr6O11 is potential cathode material for SOFC.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
