A study on the electrochemical performance of 100-cm2 class direct carbon-molten carbonate fuel cell (DC-MCFC)

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

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


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-cm2 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) + CO3-2 → CO2(g) + CO(g) + 2e-] and is further oxidized with CO3-2 [CO(g) + CO3-2 → 2CO2(g) + 2e-] 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
Issue number15
Publication statusPublished - 2015 Apr 27

Bibliographical note

Funding Information:
This work was financially supported by the Global Research Laboratory Program funded by the Ministry of Education, Science and Technology ( 2U04790 ) of Korea and KIST institutional program for Korea Institute of Science and Technology ( 2E25412 ).

Publisher Copyright:
Copyright © 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.


  • 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


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