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

doi:10.1016/j.jpowsour.2012.12.077

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 journal › Article › peer-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 language	English
Pages (from-to)	282-289
Number of pages	8
Journal	Journal of Power Sources
Volume	230
DOIs	https://doi.org/10.1016/j.jpowsour.2012.12.077
Publication status	Published - 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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title = "Hydrogen sulfide-resilient anodes for molten carbonate fuel cells",

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.",

keywords = "Anode, Creep resistance, Electro-chemical performance, Molten carbonate fuel cell",

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

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T1 - Hydrogen sulfide-resilient anodes for molten carbonate fuel cells

AU - Nguyen, Hoang Viet Phuc

AU - Song, Shin Ae

AU - Seo, Dongho

AU - Han, Jonghee

AU - Yoon, Sung Pil

AU - Ham, Hyung Chul

AU - Nam, Suk Woo

AU - Othman, Mohd Roslee

AU - Kim, Jinsoo

PY - 2013

Y1 - 2013

N2 - 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.

AB - 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.

KW - Anode

KW - Creep resistance

KW - Electro-chemical performance

KW - Molten carbonate fuel cell

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