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Galven C, Albin V, Hubert S, Lair V, Ringuede A, Crosnier-Lopez MP, Le Berre F. Na 6Li 4MO 4(CO 3) 4 (M = W and Mo): An Alternative Electrolyte for High-Temperature Electrochemical Cells. Inorg Chem 2023; 62:15367-15374. [PMID: 37677156 DOI: 10.1021/acs.inorgchem.3c00932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
Two new acentric oxycarbonates Na6Li4MO4(CO3)4 (M = W and Mo) were synthesized via a conventional solid-state route. Their structure was determined from X-ray diffraction data on single crystals. Na6Li4MO4(CO3)4 (M = W and Mo) crystallizes in the acentric cubic P-43m space group (a ≈ 7.15 Å). It is composed of MLi4O16 units built from MO4 and LiO4 tetrahedra and linked by CO32- groups to form a three-dimensional framework in which Na+ ions are inserted. We showed from differential scanning calorimetry and powder X-ray diffraction experiments that the melting is congruent (T ∼525 °C). In the solid and molten forms, conductivity was measured for both oxycarbonates by electrochemical impedance spectroscopy with three various gas compositions (CO2 100 vol %, CO2-air 70-30 vol %, and CO2-air 20-80 vol %). Each time, the stability of the electrical behavior was checked via heating and cooling cycles. The conductivity of both solid and molten phases is purely ionic and in the same order of magnitude as for the classical molten alkali electrolyte made of Li-Na or Li-K carbonates. As activation energies are also comparable, those new oxycarbonates appear to be promising electrolytes for electrochemical devices.
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Affiliation(s)
- Cyrille Galven
- Institut des Molécules et Matériaux du Mans (IMMM), UMR CNRS 6283, Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
| | - Valérie Albin
- Chimie Paris Tech, UMR CNRS 8247, Institut de Recherche de Chimie de Paris, PSL University, 75005 Paris, France
| | - Simon Hubert
- Chimie Paris Tech, UMR CNRS 8247, Institut de Recherche de Chimie de Paris, PSL University, 75005 Paris, France
| | - Virginie Lair
- Chimie Paris Tech, UMR CNRS 8247, Institut de Recherche de Chimie de Paris, PSL University, 75005 Paris, France
| | - Armelle Ringuede
- Chimie Paris Tech, UMR CNRS 8247, Institut de Recherche de Chimie de Paris, PSL University, 75005 Paris, France
| | - Marie-Pierre Crosnier-Lopez
- Institut des Molécules et Matériaux du Mans (IMMM), UMR CNRS 6283, Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
| | - Françoise Le Berre
- Institut des Molécules et Matériaux du Mans (IMMM), UMR CNRS 6283, Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
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Elucidating the effect of Ce/Zr ratio on high temperature shift activity with sulfur poisoning. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.08.041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zhang H, Zhang J, Ding H, Li Y, Sun S, Ao W, Liang Y. Solid-phase synthesis of perovskite using spent SCR catalyst and calcium carbonate and its application as ceramic opacifier. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.07.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Effect of acidic components (SO42- and WO3) on the surface acidity, redox ability and NH3-SCR activity of new CeO2-TiO2 nanoporous aerogel catalysts: A comparative study. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Jedidi W, Arfaoui J, Caudillo-Flores U, Muñoz-Batista MJ, Ksibi Z, Kubacka A, Ghorbel A, Fernández-García M. Photodegradation of 2-propanol in gas phase over zirconium doped TiO2: Effect of Zr content. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Lee G, Ye B, Lee MJ, Chun SY, Jeong B, Kim HD, Jae J, Kim T. Selective catalytic reduction of NO by NH3 over V2O5-WO3 supported by titanium isopropoxide (TTIP)-treated TiO2. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.02.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Liu S, Yao P, Lin Q, Xu S, Pei M, Wang J, Xu H, Chen Y. Optimizing acid promoters of Ce-based NH3-SCR catalysts for reducing NOx emissions. Catal Today 2021. [DOI: 10.1016/j.cattod.2021.05.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Promotional effect of ceria on the catalytic behaviour of new V2O5–WO3–TiO2 aerogel solids for the DeNOx process. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122261] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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