Hydrogen sulfide-resilient anodes for molten carbonate fuel cells

Hoang Viet Phuc Nguyen, Shin Ae Song, Dongho Seo, Jonghee Han, Sung Pil Yoon, Hyung Chul Ham, Suk Woo Nam, Mohd Roslee Othman, Jinsoo Kim

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)282-289
Number of pages8
JournalJournal of Power Sources
Volume230
DOIs
Publication statusPublished - 2013

Keywords

  • Anode
  • Creep resistance
  • Electro-chemical performance
  • Molten carbonate fuel cell

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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