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Sulfur‐Tolerant Redox‐Reversible Anode Material for Direct Hydrocarbon Solid Oxide Fuel Cells
Author(s) -
Yang Chenghao,
Yang Zhibin,
Jin Chao,
Xiao Guoliang,
Chen Fanglin,
Han Minfang
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201104852
Subject(s) - materials science , anode , redox , cermet , sulfur , alloy , oxide , composite number , chemical engineering , annealing (glass) , perovskite (structure) , inorganic chemistry , electrode , metallurgy , composite material , chemistry , ceramic , engineering
A novel composite anode material consisting of K 2 NiF 4 ‐type structured Pr 0.8 Sr 1.2 (Co,Fe) 0.8 Nb 0.2 O 4+δ (K‐PSCFN) matrix with homogenously dispersed nano‐sized Co‐Fe alloy (CFA) has been obtained by annealing perovskite Pr 0.4 Sr 0.6 Co 0.2 Fe 0.7 Nb 0.1 O 3‐δ (P‐PSCFN) in H 2 at 900 °C. The K‐PSCFN‐CFA composite anode is redox‐reversible and has demonstrated similar catalytic activity to Ni‐based cermet anode, excellent sulfur tolerance, remarkable coking resistance and robust redox cyclability.