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Research Papers

Performance of Solid Oxide Fuel Cell With La and Cr Co-Doped SrTiO3 as Anode

[+] Author and Article Information
Fenyun Yi

School of Chemistry and Environment,
South China Normal University,
Guangzhou 510006, China
e-mail: yifenyun@126.com

Hongyu Chen

Base of Production, Education & Research on
Energy Storage and Power Battery of Guangdong
Higher Education Institutes,
Guangzhou 510006, China
Engineering Reach Center of Electrochemical
Materials and Technology on Energy Storage,
Ministry of Education,
Guangzhou 510006, China
e-mail: battery@scnu.edu.cn

He Li

School of Chemistry and Environment,
South China Normal University,
Guangzhou 510006, China
e-mail: analchemlh@163.com

1Corresponding author.

Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY. Manuscript received September 5, 2013; final manuscript received November 27, 2013; published online January 24, 2014. Assoc. Editor: Dr Masashi Mori.

J. Fuel Cell Sci. Technol 11(3), 031006 (Jan 24, 2014) (4 pages) Paper No: FC-13-1083; doi: 10.1115/1.4026144 History: Received September 05, 2013; Revised November 27, 2013

The La0.3Sr0.55Ti0.9Cr0.1O3-δ (LSTC10) anode material was synthesized by citric acid-nitrate process. The yttria-stabilized zirconia (YSZ) electrolyte-supported cell was fabricated by screen printing method using LSTC10 as anode and (La0.75Sr0.25)0.95MnO3-δ (LSM) as cathode. The electrochemical performance of cell was tested by using dry hydrogen as fuel and air as oxidant in the temperature range of 800–900 °C. At 900 °C, the open circuit voltage (OCV) and the maximum power density of cell are 1.08 V and 13.0 mW·cm−2, respectively. The microstructures of cell after performance testing were investigated by scanning electron microscope (SEM). The results show that the anode and cathode films are porous and closely attached to the YSZ electrolyte. LSTC10 is believed to be a kind of potential solid oxide fuel cell (SOFC) anode material.

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Figures

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Fig. 1

XRD pattern of LSTC10 powders calcined at 800 °C for 5 h

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Fig. 2

SEM pictures of LSTC10 powders with different magnification: (a) 4950×; (b) 50,000×

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Fig. 3

Performances of cell with LSTC10 as anode at different temperatures. Dry H2 as fuel gas with a flow rate of 80 cm3·min−1, static air on the cathode side.

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Fig. 4

Performances of cell with LSTC20 as anode at different temperatures. Dry H2 as fuel gas with a flow rate of 80 cm3·min−1, static air on the cathode side.

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Fig. 5

SEM pictures of cell after performance testing: (a) surface of anode; (b) cross section of anode; (c) cross section of cell; and (d) interface between anode and electrolyte

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