Enabling catalysis of Ru¨CCeO₂ for propane oxidation in low temperature solid oxide fuel cells

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• 作者：Xuejiao  ; Liu ; Zhongliang  ; Zhan  ; ;   ; ^{zzhan@mail.sic.ac.cn} ;   ; ^{zhongliangzhan@gmail.com} ; Xie  ; Meng ; Wenhua  ; Huang ; Shaorong  ; Wang ; Tinglian  ; Wen
• 关键词：Low temperature solid oxide fuel cells ; Catalyst ; Partial oxidation ; Propane ; Hydrocarbons
• 刊名：Journal of Power Sources
• 出版年：2012
• 出版时间：1 February 2012
• 年：2012
• 卷：199
• 期：Complete
• 页码：138-141
• 全文大小：658 K

文摘

This paper reports on integration of a supported thin film catalyst as a reformer, consisting of nano-scale ruthenium particles well dispersed in the ceria matrix, into the anode chamber of a ceria-electrolyte solid oxide fuel cells (SOFCs). Operation on the propane¨Cair fuel mixture yields maximum power densities of 395 mW cm^?, 280 mW cm^? and 160 mW cm^? at 500, 450 and 400 ¡ãC, respectively. In comparison, the output power densities drop to 298 mW cm^? at 500 ¡ãC and <10 mW cm^? at 450 ¡ãC in the absence of the catalyst layer. The substantially enhanced performance can be explained by the high catalytic activity of the Ru¨CCeO₂ layer for propane partial oxidation reactions, producing higher amount of hydrogen available for the fuel cell operation and thereby reducing the anodic polarization resistance.