Nano-fibrous SrCe0·8Y0·2O3-Δ-Ni anode functional layer for proton-conducting solid oxide fuel cells

Kan Rong Lee, Chung Jen Tseng, Jeng-Kuei Chang, Kuan Wen Wang, Yu Shuo Huang, Tzu Chi Chou, Li Duan Tsai, Sheng Wei Lee*

*此作品的通信作者

研究成果: Article同行評審

7 引文 斯高帕斯(Scopus)

摘要

This study presents a nanofiber-derived functional anode consisting of proton-conducting SrCe0·8Y0·2O3-δ nanofibers and electro-catalytic Ni for proton-conducting solid oxide fuel cells. Fuel cell testing with the nano-fibrous SrCe0·8Y0·2O3-δ-Ni anode exhibits a maximum power density of 201.0 mW/cm2 at 800 °C, which is significantly higher than those of cells with a powder-derived Ba0·8Sr0·2Ce0·6Zr0·2Y0·2O3-δ-Ni anode or a nano-fibrous SrCe0·8Y0·2O3-δ anode. Its relatively lower ohmic resistance can be explained in terms of protonic and electronic “highways” throughout the nano-fibrous SrCe0·8Y0·2O3-δ-Ni anode. The significantly lower polarization resistance elements, R1 and R2, further indicate that the nano-fibrous SrCe0·8Y0·2O3-δ-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-δ-Ni anode can be attributed to its low ohmic resistance, excellent electrode catalytic activity, and good gas transport property.

原文English
文章編號226863
期刊Journal of Power Sources
436
DOIs
出版狀態Published - 1 10月 2019

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