A study on the electrochemical performance of 100-cm<sup>2</sup> class direct carbon-molten carbonate fuel cell (DC-MCFC)

Sun Hee Choi, Dong Nyeok Park, Chang Won Yoon, Sung Pil Yoon, SukWoo Nam, Seong Ahn Hong, Yong Gun Shul, Hyung Chul Ham, Jonghee Han

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

We study the effect of various operating parameters such as temperature, molten carbonate/carbon ratio, and the type of Ni thin layer inserted between the matrix (electrolyte support) and carbon green sheet on the electrochemical performance of a 100-cm<sup>2</sup> class direct carbon-molten carbonate fuel cell (DC-MCFC). In addition, we attempt to understand the oxidation behavior of carbon in the wet carbon anode (the composite of carbon and molten carbonates) of the DC-MCFC. We find that in the DC-MCFC, CO is produced via a two-electron transfer reaction [C(s) + CO<inf>3</inf><sup>-2</sup> → CO<inf>2</inf>(g) + CO(g) + 2e<sup>-</sup>] and is further oxidized with CO<inf>3</inf><sup>-2</sup> [CO(g) + CO<inf>3</inf><sup>-2</sup> → 2CO<inf>2</inf>(g) + 2e<sup>-</sup>] under closed circuit voltage conditions, indicating that CO is responsible for determining the DC-MCFC performance.

Original languageEnglish
Pages (from-to)5144-5149
Number of pages6
JournalInternational Journal of Hydrogen Energy
Volume40
Issue number15
Publication statusPublished - 2015 Apr 27
Externally publishedYes

Fingerprint

Direct carbon fuel cells (DCFC)
molten carbonate fuel cells
Molten carbonate fuel cells (MCFC)
Carbon
carbon
Molten materials
Carbonates
carbonates
Anodes
Electrolytes
Oxidation
Electrons
Networks (circuits)
Composite materials
Electric potential
electron transfer
anodes

Keywords

  • CO
  • Direct carbon-molten carbonate fuel cell
  • Two-electron transfer reaction

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

A study on the electrochemical performance of 100-cm<sup>2</sup> class direct carbon-molten carbonate fuel cell (DC-MCFC). / Choi, Sun Hee; Park, Dong Nyeok; Yoon, Chang Won; Yoon, Sung Pil; Nam, SukWoo; Hong, Seong Ahn; Shul, Yong Gun; Ham, Hyung Chul; Han, Jonghee.

In: International Journal of Hydrogen Energy, Vol. 40, No. 15, 27.04.2015, p. 5144-5149.

Research output: Contribution to journalArticle

Choi, SH, Park, DN, Yoon, CW, Yoon, SP, Nam, S, Hong, SA, Shul, YG, Ham, HC & Han, J 2015, 'A study on the electrochemical performance of 100-cm<sup>2</sup> class direct carbon-molten carbonate fuel cell (DC-MCFC)', International Journal of Hydrogen Energy, vol. 40, no. 15, pp. 5144-5149.
Choi, Sun Hee ; Park, Dong Nyeok ; Yoon, Chang Won ; Yoon, Sung Pil ; Nam, SukWoo ; Hong, Seong Ahn ; Shul, Yong Gun ; Ham, Hyung Chul ; Han, Jonghee. / A study on the electrochemical performance of 100-cm<sup>2</sup> class direct carbon-molten carbonate fuel cell (DC-MCFC). In: International Journal of Hydrogen Energy. 2015 ; Vol. 40, No. 15. pp. 5144-5149.
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