Electrochemical impedance spectroscopy study of the LixMn2O4 interface with natural brine
The LiMn2O4-Polypyrrole electrochemical cell has been shown to extract LiCl from natural brine at low voltage with high selectivity, low energy consumption (5–10 Wh·mol− 1) and good stability. The intercalation/de-intercalation of Li+ ions in LixMn2O4 (0 ≤ x ≤ 1) has been studied by electrochemical...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_15726657_v819_n_p428_Marchini |
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todo:paper_15726657_v819_n_p428_Marchini2023-10-03T16:27:34Z Electrochemical impedance spectroscopy study of the LixMn2O4 interface with natural brine Marchini, F. Williams, F.J. Calvo, E.J. Brine Extraction Impedance LiMn2O4 Lithium Brines Chlorine compounds Electric impedance Electrochemical impedance spectroscopy Energy utilization Extraction Ions Lithium Manganese compounds Polypyrroles Spectroscopy Adsorption model Adsorption site Equivalent electrical circuits Good stability High selectivity LiMn2O4 Lithium-ion transfer Low energy consumption Lithium compounds The LiMn2O4-Polypyrrole electrochemical cell has been shown to extract LiCl from natural brine at low voltage with high selectivity, low energy consumption (5–10 Wh·mol− 1) and good stability. The intercalation/de-intercalation of Li+ ions in LixMn2O4 (0 ≤ x ≤ 1) has been studied by electrochemical impedance spectroscopy (EIS) at different potentials and lithium ion concentrations using a modified Randles equivalent electrical circuit for the interface of LixMn2O4 in natural brine from Salar de Olaroz (Jujuy, Argentina). The RCT exhibits two minima at potentials which correspond to x = 0.25 and x = 0.75 (half filled adsorption sites) respectively and a linear lithium ion concentration dependence of (Li+)− 0.5 consistent with a lithium ion transfer adsorption model proposed by Bruce. © 2017 Elsevier B.V. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_15726657_v819_n_p428_Marchini |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Brine Extraction Impedance LiMn2O4 Lithium Brines Chlorine compounds Electric impedance Electrochemical impedance spectroscopy Energy utilization Extraction Ions Lithium Manganese compounds Polypyrroles Spectroscopy Adsorption model Adsorption site Equivalent electrical circuits Good stability High selectivity LiMn2O4 Lithium-ion transfer Low energy consumption Lithium compounds |
| spellingShingle |
Brine Extraction Impedance LiMn2O4 Lithium Brines Chlorine compounds Electric impedance Electrochemical impedance spectroscopy Energy utilization Extraction Ions Lithium Manganese compounds Polypyrroles Spectroscopy Adsorption model Adsorption site Equivalent electrical circuits Good stability High selectivity LiMn2O4 Lithium-ion transfer Low energy consumption Lithium compounds Marchini, F. Williams, F.J. Calvo, E.J. Electrochemical impedance spectroscopy study of the LixMn2O4 interface with natural brine |
| topic_facet |
Brine Extraction Impedance LiMn2O4 Lithium Brines Chlorine compounds Electric impedance Electrochemical impedance spectroscopy Energy utilization Extraction Ions Lithium Manganese compounds Polypyrroles Spectroscopy Adsorption model Adsorption site Equivalent electrical circuits Good stability High selectivity LiMn2O4 Lithium-ion transfer Low energy consumption Lithium compounds |
| description |
The LiMn2O4-Polypyrrole electrochemical cell has been shown to extract LiCl from natural brine at low voltage with high selectivity, low energy consumption (5–10 Wh·mol− 1) and good stability. The intercalation/de-intercalation of Li+ ions in LixMn2O4 (0 ≤ x ≤ 1) has been studied by electrochemical impedance spectroscopy (EIS) at different potentials and lithium ion concentrations using a modified Randles equivalent electrical circuit for the interface of LixMn2O4 in natural brine from Salar de Olaroz (Jujuy, Argentina). The RCT exhibits two minima at potentials which correspond to x = 0.25 and x = 0.75 (half filled adsorption sites) respectively and a linear lithium ion concentration dependence of (Li+)− 0.5 consistent with a lithium ion transfer adsorption model proposed by Bruce. © 2017 Elsevier B.V. |
| format |
JOUR |
| author |
Marchini, F. Williams, F.J. Calvo, E.J. |
| author_facet |
Marchini, F. Williams, F.J. Calvo, E.J. |
| author_sort |
Marchini, F. |
| title |
Electrochemical impedance spectroscopy study of the LixMn2O4 interface with natural brine |
| title_short |
Electrochemical impedance spectroscopy study of the LixMn2O4 interface with natural brine |
| title_full |
Electrochemical impedance spectroscopy study of the LixMn2O4 interface with natural brine |
| title_fullStr |
Electrochemical impedance spectroscopy study of the LixMn2O4 interface with natural brine |
| title_full_unstemmed |
Electrochemical impedance spectroscopy study of the LixMn2O4 interface with natural brine |
| title_sort |
electrochemical impedance spectroscopy study of the lixmn2o4 interface with natural brine |
| url |
http://hdl.handle.net/20.500.12110/paper_15726657_v819_n_p428_Marchini |
| work_keys_str_mv |
AT marchinif electrochemicalimpedancespectroscopystudyofthelixmn2o4interfacewithnaturalbrine AT williamsfj electrochemicalimpedancespectroscopystudyofthelixmn2o4interfacewithnaturalbrine AT calvoej electrochemicalimpedancespectroscopystudyofthelixmn2o4interfacewithnaturalbrine |
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1807316370447138816 |