標題: Nano-fibrous SrCe0.8Y0.2O3-delta-Ni anode functional layer for proton-conducting solid oxide fuel cells
作者: Lee, Kan-Rong
Tseng, Chung-Jen
Chang, Jeng-Kuei
Wang, Kuan-Wen
Huang, Yu-Shuo
Chou, Tzu-Chi
Tsai, Li-Duan
Lee, Sheng-Wei
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: Solid oxide fuel cells;Proton-conducting electrolyte;SrCe0.8Y0.2O3-delta nanofibers;Composite anode;Electrospinning
公開日期: 1-Oct-2019
摘要: This study presents a nanofiber-derived functional anode consisting of proton-conducting SrCe0.8Y0.2O3-delta nanofibers and electro-catalytic Ni for proton-conducting solid oxide fuel cells. Fuel cell testing with the nano fibrous SrCe0.8Y0.2O3-delta-Ni anode exhibits a maximum power density of 201.0 mW/cm(2) at 800 degrees C, which is significantly higher than those of cells with a powder-derived Ba0.8Sr0.2Ce0.6Zr0.2Y0.2O3-delta-Ni anode or a nano fibrous SrCe0.8Y0.2O3-delta anode. Its relatively lower ohmic resistance can be explained in terms of protonic and electronic "highways" throughout the nano-fibrous SrCe0.8Y0.2O3-delta-Ni anode. The significantly lower polarization resistance elements, R-1 and R-2, further indicate that the nano-fibrous SrCe0.8Y0.2O3-delta-Ni anode has superior catalytic activity for the hydrogen oxidation reaction and thus generates more protons that can participate in the cathode reactions. The results show that the performance enhancement in the fuel cell with the nano-fibrous SrCe0.8Y0.2O3-delta-Ni anode can be attributed to its low ohmic resistance, excellent electrode catalytic activity, and good gas transport property.
URI: http://dx.doi.org/10.1016/j.jpowsour.2019.226863
http://hdl.handle.net/11536/152841
ISSN: 0378-7753
DOI: 10.1016/j.jpowsour.2019.226863
期刊: JOURNAL OF POWER SOURCES
Volume: 436
起始頁: 0
結束頁: 0
Appears in Collections:Articles