The Effect of Coal Syngas Containing AsH₃ on the Performance of SOFCs: Investigations into the Effect of Operational Temperature, Current Density and AsH₃ Concentration

Author

Jason P. Trembly
R. S. Gemmen
David J. Bayless, Missouri University of Science and TechnologyFollow

Abstract

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 0.5 A cm^-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.

Recommended Citation

J. P. Trembly et al., "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 of Power Sources, vol. 171, no. 2, pp. 818 - 825, Elsevier B.V, Sep 2007.

The definitive version is available at https://doi.org/10.1016/j.jpowsour.2007.06.087

Department(s)

Mechanical and Aerospace Engineering

Keywords and Phrases

Coal Syngas; Experimental Performance; Hydrogen Chloride; Solid Oxide Fuel Cell

International Standard Serial Number (ISSN)

0378-7753

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2007 Elsevier B.V, All rights reserved.

Publication Date

27 Sep 2007