Characterization and Electrochemical Performance of Ce sub>1-XFexO 2-δ Anode for Solid Oxide Fuel Cell Running on Methane Fuel

Subscript textAn anode material of Ce sub>1-xFexO sub>2-δ (x=0.1, 0.2) for the oxidation of dry methane has been investigated. Ce sub>1-xFexO2-δ is synthesized by the citrate method. The electrochemical behavior of anode is analyzed by electrochemical iSubscript textmpedance spectroscopy. Ce1-xFexO 2-δ (x=0.1, 0.2) has shown the properties of electrochemical oxidation of methane at these temperatures (550~700°C) and the polarization resistance decreases with increasing Fe content. The Ce0.9Fe0.1O2-δ showed little degradation in long-term operation while the Ce0.8Fe 0.2 O sub>2-δ showed degradation.

[1]  A. Ohmura,et al.  An Octane-Fueled Solid Oxide Fuel Cell , 2011 .

[2]  Xiufu Sun,et al.  Evaluation of Sr0.88Y0.08TiO3–CeO2 as composite anode for solid oxide fuel cells running on CH4 fuel , 2009 .

[3]  K. Hu,et al.  Ce0.8M0.2O2−δ(M=Mn,Fe,Ni,Cu) as SOFC Anodes for Electrochemical Oxidation of Hydrogen and Methane , 2008 .

[4]  John B. Goodenough,et al.  Alternative anode materials for solid oxide fuel cells , 2007 .

[5]  J. Irvine,et al.  Mixed conductivity and electrochemical behavior of (La0.75Sr0.25)0.95Cr0.5Mn0.5O3 − δ , 2007 .

[6]  K. Hu,et al.  Synthesis and electrochemical behavior of Ce1−xFexO2−δ as a possible SOFC anode materials , 2007 .

[7]  John B Goodenough,et al.  Double Perovskites as Anode Materials for Solid-Oxide Fuel Cells , 2006, Science.

[8]  S. Chan,et al.  (La0.75Sr0.25)(Cr0.5Mn0.5)O3/YSZ composite anodes for methane oxidation reaction in solid oxide fuel cells , 2006 .

[9]  Yeong Yoo,et al.  Effect of ceria on properties of yttrium-doped strontium titanate ceramics , 2006 .

[10]  J. Fierro,et al.  Chemical Structures of Coprecipitated Fe−Ce Mixed Oxides , 2005 .

[11]  W. L. Worrell,et al.  Characterization of Cu–CeO2 direct hydrocarbon anodes in a solid oxide fuel cell with lanthanum gallate electrolyte , 2004 .

[12]  G. C. Mather,et al.  Electrochemical behaviour of Ni-cermet anodes containing a proton-conducting ceramic phase on YSZ substrate , 2004 .

[13]  Hong-Ki Lee.  Electrochemical characteristics of La1−xSrxMnO3 for solid oxide fuel cell , 2003 .

[14]  Raymond J. Gorte,et al.  Novel SOFC anodes for the direct electrochemical oxidation of hydrocarbon , 2002 .

[15]  S. A. Barnett,et al.  A direct-methane fuel cell with a ceria-based anode , 1999, Nature.

[16]  N. Sakai,et al.  Ceria-Zirconia Composite Electrolyte for Solid Oxide Fuel Cells , 1997 .

[17]  N. Sakai,et al.  Oxidation and steam reforming of CH{sub 4} on Ni and Fe anodes under low humidity conditions in solid oxide fuel cells , 1996 .

[18]  J. Mizusaki,et al.  Studies on electrode processes of stabilized zirconia cell system by complex impedance method. , 1981 .

[19]  C. C. Dauterman.  The Ceramic International , 1959 .