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001     908777
005     20240709094454.0
037 _ _ |a FZJ-2022-02833
041 _ _ |a English
100 1 _ |a Qi, Jia
|0 P:(DE-Juel1)176873
|b 0
|e Corresponding author
|u fzj
111 2 _ |a International Conference on Computer Coupling of Phase Diagrams and Thermochemistry
|g CALPHAD XLIX
|c Stockholm
|d 2022-05-22 - 2022-05-27
|w Sweden
245 _ _ |a Experimental study and thermodynamic assessment of Li2CO3-K2CO3
260 _ _ |c 2022
336 7 _ |a Conference Paper
|0 33
|2 EndNote
336 7 _ |a INPROCEEDINGS
|2 BibTeX
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336 7 _ |a Poster
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520 _ _ |a The salts Li2CO3 and K2CO3 are widely used in molten carbonate fuel cell and Electrochemical Deposition of Carbon Materials. Because of their high energy density, they are also good candidates for heat storage in concentrated solar power plants. As the thermodynamic data on these carbonates and the binary system in the commercial database is inaccurate, they are being reinvestigated in this work. Using high temperature X-ray diffraction, it was found out that the previously reported solid-solid phase transition [3, 4] of Li2CO3 was caused by impurity of LiOH. Moreover, a relatively small solid-solid phase transition at 603 K was detected from the temperature dependence of lattice parameter, which was not possible to detect by thermal analysis (DTA/DSC). Different types of DSCs were used to measure the heat capacity of Li2CO3, K2CO3 and the intermediate compound LiKCO3. Finally, the Gibbs energy of the pure carbonates and the binary system was generated according to the literature and our new experimental data in the new PCM database, that can provides a better data accuracy.
536 _ _ |a 1243 - Thermal Energy Storage (POF4-124)
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536 _ _ |a PCM-Screening: Evaluierung eutektischer Gemische f. d. Einsatz als PCM: thermodynamische Modellierung und experimentelle Methoden. Teilvorhaben: Thermochemie wasserfreier Salzsysteme für PCM (03ET1441D)
|0 G:(BMWi)03ET1441D
|c 03ET1441D
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650 1 7 |a Energy
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700 1 _ |a Sergeev, Dmitry
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700 1 _ |a Yazhenskikh, Elena
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700 1 _ |a Ziegner, Mirko
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700 1 _ |a Müller, Michael
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909 C O |o oai:juser.fz-juelich.de:908777
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913 1 _ |a DE-HGF
|b Forschungsbereich Energie
|l Materialien und Technologien für die Energiewende (MTET)
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980 _ _ |a poster
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980 _ _ |a I:(DE-Juel1)IEK-2-20101013
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981 _ _ |a I:(DE-Juel1)IMD-1-20101013

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