The effect of coal syngas containing AsH3 on the performance of SOFCs: Investigations into the effect of operational temperature, current density and AsH3 concentration

Journal Article · Thu Sep 27 00:00:00 EDT 2007 · Journal of Power Sources

DOI:https://doi.org/10.1016/j.jpowsour.2007.06.087· OSTI ID:915247

Trembly, J P; Gemmen, R S; Bayless, D J ^[1]

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1. Ohio Univ., Athens, OH

The performance of solid oxide fuel cells (SOFCs) using simulated coal-derived syngas, with and without arsine (AsH3), was studied. Anode-supported SOFCs were tested galvanostatically at 0.25 and 0.5Acm-2 at 750 and 800 °C with simulated coal syngas containing 0.1, 1, and 2 ppm AsH3. The tests with simulated coal syngas containing 1 ppm AsH3 show little degradation over 100 h of operation. The tests with simulated coal syngas containing 2 ppm AsH3 show some signs of degradation, however no secondary arsenide phases were found. Extended trial testing with 0.1 ppm AsH3 showed degradation as well as the formation of a secondary nickel arsenide phase in the anode of the SOFC.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
• Sponsoring Organization: USDOE - Office of Fossil Energy (FE)
• DOE Contract Number: None cited
• OSTI ID: 915247
• Report Number(s): DOE/NETL-IR-2007-229; TRN: US200817%%399
• Journal Information: Journal of Power Sources, Vol. 171, Issue 2; ISSN 0378-7753
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
30 DIRECT ENERGY CONVERSION
ANODES
ARSENIDES
COAL
CURRENT DENSITY
NICKEL ARSENIDES
PERFORMANCE
SOLID OXIDE FUEL CELLS
TESTING
Solid oxide fuel cell
Coal syngas
Experimental performance
Hydrogen chloride