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- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received May 9, 2024
Revised June 26, 2024
Accepted June 26, 2024
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Investigation of Temperature Effect on Electrode Reactions of Molten Carbonate Electrolysis Cells and Fuel Cells using Reactant Gas Addition Method
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Abstract
The impact of temperature on electrode reactions in 100 cm2 molten carbonate cells operating as Fuel Cells
(FC) and Electrolysis Cells (EC) was examined using the Reactant Gas Addition (RA) method across a temperature
range of 823 to 973 K. The RA findings revealed that introduction of H2 and CO2, reduced the overpotential at Hydrogen
Electrode (HE) in both the modes. However, no explicit temperature dependencies were observed. Conversely, adding
O2 and CO2 to the Oxygen Electrode (OE) displayed considerable temperature dependencies in FC mode which can be
attributed to increased gas solubility due to the electrolyte melting at higher temperatures. In EC mode, there was no
observed temperature dependence for overpotential. Furthermore, the addition of O2 led to a decrease in overpotential,
while CO2 addition resulted in an increased overpotential, primarily due to changes in the concentration of O2 species.
Keywords
References
Effects Between Fuel Cell and Electrolysis Cell Modes of a
100 cm2 Class Molten Carbonate Cell,” J. Electroanal. Chem.,
925, 116896(2022).
2. Koomson, S. and Lee, C.-G., “Reaction Characteristics of Molten
Carbonate Cell Operated in Fuel Cell and Electrolysis modes with
Reactant Gas Addition Method,” J. Electroanal. Chem., 117577
(2023).
3. Koomson, S., Bae, S. H., Kim, K. M. and Lee, C.-G., “Effect of
Temperature on the Electrode Overpotential of Molten Carbonate
Electrolysis and Fuel Cells with Inert-gas Step Addition
Method,” J. Electroanal. Chem., 950, 17844(2023).
4. Saito, T., Itoh, Y., Nishioka, M. and Miyake, Y., “Effect of Operating
Temperature on the Performance of Molten-carbonate Fuel
Cells,” J. Power Sources., 36, 69-77(1991).
5. Morita, H., Komoda, M., Mugikura, Y., Izaki, Y., Watanabe, T.,
Masuda, Y. and Matsuyama, T., “Performance Analysis of Molten
Carbonate Fuel Cell Using a Li/Na Electrolyte,” J. Power Sources.,
112, 509-518(2002).
6. Musa, A., Steeman, H.-J. and De Paepe, M., The Effect of Operating
Temperature on the Performance of Molten Carbonate Fuel
Cell systems, in: 16th World Hydrog. Energy Conf., International
Association for Hydrogen Energy, 2006.
7. Lee, C. G., “Influence of Temperature on the Anode Reaction in
a Molten Carbonate Fuel Cell,” J. Electroanal. Chem., 785, 152-
158(2017).
8. Lee, C. G., “Effect of Temperature on the Cathodic Overpotential
in a Molten Carbonate Fuel Cell,” J. Electroanal. Chem., 701,
36-42(2013).
9. Hu, L., Rexed, I., Lindbergh, G., and Lagergren, C., “Electrochemical
Performance of Reversible Molten Carbonate Fuel
Cells,” Int. J. Hydrogen Energy., 39, 12323-12329(2014).
10. Hu, L., Lindbergh, G., Lagergren, C., “Operating the Nickel
Electrode with Hydrogen-lean Gases in the Molten Carbonate
Electrolysis Cell (MCEC),” Int. J. Hydrogen Energy., 41, 18692-
18698(2016).
11. Hu, L., Lindbergh, G. and Lagergren, C., “Electrode Kinetics of
the Ni Porous Electrode for Hydrogen Production in a Molten
Carbonate Electrolysis Cell (MCEC),” J. Electrochem. Soc., 162,
F1020-F1028(2015).
12. Hu, L., Lindbergh, G. and Lagergren, C., “Electrode Kinetics of
the NiO Porous Electrode for Oxygen Production in the Molten
Carbonate Electrolysis Cell (MCEC),” Faraday Discuss., 182,493-509(2015).
13. Perez-Trujillo, J. P., Elizalde-Blancas, F., Della Pietra, M. and
McPhail, S. J., “A Numerical and Experimental Comparison of
a Single Reversible Molten Carbonate Cell Operating in Fuel
Cell Mode and Electrolysis Mode,” Appl. Energy., 226, 1037-1055
(2018).
14. Audasso, E., Kim, K. I., Accardo, G., Kim, H. S. and Yoon, S. P.,
“Investigation of Molten Carbonate Electrolysis Cells Performance
for H2 Production and CO2 Capture,” J. Power Sources., 523,
231039(2022).
15. Lee, C. G., Hwang, J. Y., Oh, M., Kim, D. H., Lim, H. C.,
“Overpotential Analysis with Various Anode Gas Compositions
in a Molten Carbonate Fuel Cell,” J. Power Sources., 179, 467-
473(2008).