Hydrogen sulfide-resilient anodes for molten carbonate fuel cells

Title
Hydrogen sulfide-resilient anodes for molten carbonate fuel cells
Authors
응우엔호암빗푹송신애서동호한종희윤성필함형철남석우Mohd Roslee Othman김진수
Keywords
MCFC; anode; NiAlFe; sulfur; Molten carbonate fuel cell; Creep resistance; Electro-chemical performance
Issue Date
2013-05
Publisher
Journal of power sources
Citation
VOL 230, 282-289
Abstract
Nickel aluminum (Ni–Al) alloy anodes have become the preferred choice in anode material and have received widespread attention in molten carbonate fuel cell (MCFC) research due to their high durability and effectiveness in resisting creep of stack loadings. They are, however, susceptible to hydrogen sulfide (H2S) poisoning, which results in pore compression and rapid reduction of active sites for the electro-catalytic reaction. In this work, iron is introduced into a conventional Ni–Al anode to improve the creep resistance and tolerance to H2S. Anodes containing 30 wt.% Fe have a low creep strain of ca. 3%, but their creep resistance is much better than that of standard anodes. Single cells operated stably over 1000 h with a low voltage loss of ca. 5 mV. When exposed to H2S, the modified anode exhibited excellent recovery from the poisoning effect.
URI
http://pubs.kist.re.kr/handle/201004/45760
ISSN
03787753
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KIST Publication > Article
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