Improving electrochemical performance of (Cu,Sm)CeO2 anode with anchored Cu nanoparticles for direct utilization of natural gas in solid oxide fuel cells |
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| Affiliation: | 1. Department of Mathematics, Changshu Institute of Technology, Changshu, Jiangsu 215500, PR China;2. Department of Mathematics, Nanjing University, Nanjing, Jiangsu 210093, PR China;3. School of Mathematics and Statistics, Zaozhuang University, Zaozhuang 277160, PR China;1. School of Mathematics and Statistics, Changshu Institute of Technology, Suzhou, Jiangsu 215500,China;2. School of Mathematics and Statistics, University of South Florida, Tampa, Florida 33620, USA;3. School of Mathematical Sciences, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China |
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| 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/cm2 at 600 °C when dry methane is used as fuel while its ohmic resistance is only 0.39 Ω cm2. The single SOFC shows good stability when H2S 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. |
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| Keywords: | Solid oxide fuel cell Copper nanoparticles Coking-resistant Sulfur tolerance Natural gas |
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