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Catalysts 2014, 4(2), 146-161; doi:10.3390/catal4020146
Article

La0.6Sr0.4Co0.2Fe0.8O3 Perovskite: A Stable Anode Catalyst for Direct Methane Solid Oxide Fuel Cells

1
 and 2,*
Received: 26 February 2014; in revised form: 23 April 2014 / Accepted: 25 April 2014 / Published: 9 May 2014
(This article belongs to the Special Issue Perovskite Catalysts)
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Abstract: Direct methane solid oxide fuel cells, operated by supplying methane to a Ni/YSZ anode, suffer from degradation via accumulation of carbon deposits on the Ni surface. Coating a 40 µm thin film of La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) perovskite on the Ni/YSZ anode surface decreased the amount of carbon deposits, slowing down the degradation rate. The improvement in anode durability could be related to the oxidation activity of LSCF which facilitates oxidation of CH4 and carbon deposits. Analysis of the crystalline structure of LSCF revealed that LSCF was stable in the reducing anode environment under H2 and CH4 flow at 750 °C and retained its perovskite structure throughout the 475 h long-term stability test.
Keywords: LSCF perovskite; SOFC anode; methane utilization; stability; redox; carbon deposition LSCF perovskite; SOFC anode; methane utilization; stability; redox; carbon deposition
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Mirzababaei, J.; Chuang, S.S.C. La0.6Sr0.4Co0.2Fe0.8O3 Perovskite: A Stable Anode Catalyst for Direct Methane Solid Oxide Fuel Cells. Catalysts 2014, 4, 146-161.

AMA Style

Mirzababaei J, Chuang SSC. La0.6Sr0.4Co0.2Fe0.8O3 Perovskite: A Stable Anode Catalyst for Direct Methane Solid Oxide Fuel Cells. Catalysts. 2014; 4(2):146-161.

Chicago/Turabian Style

Mirzababaei, Jelvehnaz; Chuang, Steven S.C. 2014. "La0.6Sr0.4Co0.2Fe0.8O3 Perovskite: A Stable Anode Catalyst for Direct Methane Solid Oxide Fuel Cells." Catalysts 4, no. 2: 146-161.


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