Optimum reduction condition of SDC-NiO composite anode for SDC-based single chamber solid oxide fuel cells

Ji Hyun Min, Sung Jin Ahn, Joo Ho Moon, Joosun Kim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We have determined an optimal reduction condition for NiO-based anode in single chamber solid oxide fuel cells that involve samaria-doped ceria (SDC) as an electrolyte. Optimal condition should not only induce sufficient reduction of NiO to Ni, but also prevent the reduction of SDC electrolyte in order to achieve high open circuit voltage (OCV) and power output. Thermodynamic consideration allowed us to determine the optimal anode reduction condition as 96%H 2 - 4%H 2 O atmosphere at 250°C. This finding was in a good agreement with the experimental verifications by monitoring the conductivities of SDC and NiO under different reducing conditions.

Original languageEnglish
Pages (from-to)542-547
Number of pages6
JournalJournal of the Korean Ceramic Society
Volume44
Issue number10
DOIs
Publication statusPublished - 2007 Oct 31

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Cerium compounds
Solid oxide fuel cells (SOFC)
Anodes
Composite materials
Electrolytes
Open circuit voltage
Thermodynamics
Monitoring

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

Cite this

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abstract = "We have determined an optimal reduction condition for NiO-based anode in single chamber solid oxide fuel cells that involve samaria-doped ceria (SDC) as an electrolyte. Optimal condition should not only induce sufficient reduction of NiO to Ni, but also prevent the reduction of SDC electrolyte in order to achieve high open circuit voltage (OCV) and power output. Thermodynamic consideration allowed us to determine the optimal anode reduction condition as 96{\%}H 2 - 4{\%}H 2 O atmosphere at 250°C. This finding was in a good agreement with the experimental verifications by monitoring the conductivities of SDC and NiO under different reducing conditions.",
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Optimum reduction condition of SDC-NiO composite anode for SDC-based single chamber solid oxide fuel cells. / Min, Ji Hyun; Ahn, Sung Jin; Moon, Joo Ho; Kim, Joosun.

In: Journal of the Korean Ceramic Society, Vol. 44, No. 10, 31.10.2007, p. 542-547.

Research output: Contribution to journalArticle

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