阳极
材料科学
固体氧化物燃料电池
氧化钇稳定氧化锆
甲烷
碳纤维
氧化物
电化学
化学工程
立方氧化锆
催化作用
无机化学
直接乙醇燃料电池
化学
电极
冶金
复合材料
有机化学
陶瓷
物理化学
工程类
复合数
作者
Eun Kyung Park,Jeong Woo Yun
出处
期刊:Journal of electrochemical science and technology
[The Korean Electrochemical Society - English Journal]
日期:2016-03-31
卷期号:7 (1): 33-40
被引量:3
标识
DOI:10.33961/jecst.2016.7.1.33
摘要
Sr0.92Y0.08TiO3-δ (SYT) was investigated as an alternative anode in humidified CH4 fuel for SOFCs at low temperatures (650 â-750 â) and compared with the conventional Ni/yttria-stabilized zirconia (Ni/YSZ) anode. The goal of the study was to directly use a hydrocarbon fuel in a SOFC without a reforming process. The cell performance of the SYT anode was relatively low compared with that of the Ni/YSZ anode because of the poor electrochemical catalytic activity of SYT. In the presence of CH4 fuel, however, the cell performance with the SYT anode decreased by 20%, in contrast to the 58% decrease in the case of the Ni/YSZ anode. The severe degradation of cell performance observed with the Ni/YSZ anode was caused by carbon deposition that resulted from methane thermal cracking. Carbon was much less detected in the SYT anode due to the catalytic oxidation. Otherwise, a significant amount of bulk carbon was detected in the Ni/YSZ anode. Keywords: Solid oxide fuel cell, Sr0.92Y0.08TiO3-δ, methane, alternative anode, carbon deposition
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