Improving electrochemical performance of (Cu, Sm)CeO2 anode with anchored Cu nanoparticles for direct utilization of natural gas in solid oxide fuel cells. Issue 7 (July 2022)

• Record Type: Journal Article
• Authors: Wang, Zhicheng; Wang, Yang; Qin, Delong; Gu, Yiheng; Yu, Hailin; Tao, Shi; Qian, Bin; Chao, Yimin
• Is Part Of: Journal of the European Ceramic Society. Volume 42:Issue 7(2022)
• Page Start: 3254
• Page End: 3263
• Publication Date: 2022-07
• Subjects: Solid oxide fuel cell -- Copper nanoparticles -- Coking-resistant -- Sulfur tolerance -- Natural gas; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2022.02.006
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: Development of solid oxide fuel cell (SOFC) anode with high resistance to coking and sulfur poisoning is highly desirable for the direct application of natural gas in SOFC. Herein, a (Cu, Sm)CeO2 anode with anchored Cu nanoparticles has been prepared. Most of Cu nanoparticles particle size ranges from 20 to 50 nm, which can increase the conductivity and catalytic activity of the anode. The Cu/CSCO10 supported cell exhibits a maximum power density of 404.6 mW/cm 2 at 600 °C when dry methane is used as fuel while its ohmic resistance is only 0.39 Ω cm 2 . The single SOFC shows good stability when H2 S content in the fuel is less than 150 ppm. Up to 900 h of continuous stable operation with simulated natural gas and commercial natural gas as fuel prove the advantages and application potential of this anode. Highlights: A (Cu, Sm)CeO2 anode with anchored Cu nanoparticles was fabricated. The Cu nanoparticles particle size ranges from 20 to 50 nm. The prepared cell exhibits a good performance with dry methane as fuel. Such an anode shows good resistance to coking and sulfur poisoning. The single SOFC shows good stability with natural gas as fuel.