- Title
- Thermal investigation of a doped alkali-metal carbonate ternary eutectic for direct carbon fuel cell applications
- Creator
- Glenn, Michael J.; Allen, Jessica A.; Donne, Scott W.
- Relation
- Energy and Fuels Vol. 29, Issue 8, p. 5423-5433
- Publisher Link
- http://dx.doi.org/10.1021/acs.energyfuels.5b01027
- Publisher
- American Chemical Society
- Resource Type
- journal article
- Date
- 2015
- Description
- The carbonate eutectic mixture of Li₂CO₃, K₂CO₃, and Na₂CO₃ is commonly used as an electrolyte within the direct carbon fuel cell. Here, seven different minerals common to the ash content of Australian bituminous coals (anatase TiO₂, SiO₂, CaCO₃, CaSO₄, Fe₂O₃, FeS, and kaolin) were used to modify the ternary carbonate eutectic to explore the thermodynamics of the carbonate melting process. Thermal effects were examined using differential thermal analysis, where it has been shown that dissolution of the contaminant leads to liquid-phase disruption, the extent of which varies with dopant type. Furthermore, modeling of the melting process carried out using different heating rates allowed determination of the activation energy for melting in the presence of the various contaminants, where it was shown that the contaminants can dramatically affect the activation energy and, subsequently, the kinetics of the melting process.
- Subject
- energy supply; fossil fuels; energy production; renewable energy
- Identifier
- http://hdl.handle.net/1959.13/1332427
- Identifier
- uon:26869
- Identifier
- ISSN:0887-0624
- Language
- eng
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