A study of the methane tolerance of LSCM–YSZ composite anodes with Pt, Ni, Pd and ceria catalysts

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• 作者：Ju-Sik Kim^a ; Vineet V. Nair^a ; John M. Vohs^a ; Raymond J. Gorte ; ^a ; ^{gorte@seas.upenn.edu"" rel=""nofollow}
• 关键词：Solid oxide fuel cells ; Methane ; Yttria-stabilized zirconia ; Ceria
• 刊名：Scripta Materialia
• 出版年：2011
• 出版时间：July 2011
• 年：2011
• 卷：65
• 期：2
• 页码：90-95
• 全文大小：797 K

文摘

The performance of solid-oxide-fuel-cell anodes based on composites of LSCM and YSZ containing 0.5 wt. % metal catalyst was studied to understand the performance and stability of these anodes. Electrodes containing Pt were found to be stable in CH₄ but carbon deposits with granular or filamentous morphologies were found with electrodes containing either 0.5 wt. % Pd or Ni. Carbon deposition with both Pd and Ni was greatly suppressed by the addition of 10 wt. % ceria as a co-catalyst.