Study of Speciation and Transport Properties for Different Compositions of Carbonates in Li 2 CO 3 – Na 2 CO 3 and Li 2 CO 3 – K 2 CO 3 Binary Systems at High Temperature in Molten State - Archive ouverte HAL Access content directly
Journal Articles Journal of Physical Chemistry C Year : 2023

Study of Speciation and Transport Properties for Different Compositions of Carbonates in Li 2 CO 3 – Na 2 CO 3 and Li 2 CO 3 – K 2 CO 3 Binary Systems at High Temperature in Molten State

Abstract

Molten alkalicarbonates playacentral roleincarbon-capture technologies. Tocharacterize thestructural andtransport properties, weusedNMR, pulsefieldgradient (PFG) NMR, electrical impedancemetry, andmolecular dynamics simulation. Different compositions inLi 2CO3−Na2CO3 andLi 2CO3− K2CO3 binary systems at1003Khavebeenstudied. TheNMRmeasurements confirmed onlythepresence ofanionic species CO32− whatever thecomposition. Somestructural evolution ofK + andLi + cations around theoxygen wasdetected in thecomposition Li2CO3−K2CO3.Withtheaddition ofK 2CO3 inthecarbonate mixture, theinteraction between thecharge carriers present intheliquidincreases andresultsinadecrease ofelectrical conductivity.
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hal-04153425 , version 1 (13-07-2023)

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Antonii Zhadan, Antoine Carof, Vincent Sarou-Kanian, Leire del Campo, Lionel Cosson, et al.. Study of Speciation and Transport Properties for Different Compositions of Carbonates in Li 2 CO 3 – Na 2 CO 3 and Li 2 CO 3 – K 2 CO 3 Binary Systems at High Temperature in Molten State. Journal of Physical Chemistry C, 2023, 127 (23), pp.11186-11194. ⟨10.1021/acs.jpcc.3c01226⟩. ⟨hal-04153425⟩
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