Sulfur-tolerant redox-reversible anode material for direct hydrocarbon solid oxide fuel cells.
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.
Department of Mechanical Engineering, University of South Carolina, Columbia, 29208, USA.
Chenghao
C
Yang
Zhibin
Z
Yang
Chao
C
Jin
Guoliang
G
Xiao
Fanglin
F
Chen
Minfang
M
Han
D011211:Electric Power Supplies; D004566:Electrodes; D006838:Hydrocarbons / Q000737:chemistry*; D008422:Materials Testing; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry*; D013455:Sulfur / Q000737:chemistry*
D006838:Hydrocarbons; D010087:Oxides; D013455:Sulfur