Infrared spectroscopy studies on stability of dimethyl sulfoxide for application in a Li-air battery
In situ infrared subtractive normalized Fourier transform infrared spectroscopy (SNIFTIRS) experiments performed simultaneously with the electroreduction of oxygen on gold and platinum cathodes in LiPF6 dimethyl sulfoxide (DMSO) electrolyte have shown that the solvent is stable with respect to nucle...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_19327447_v117_n36_p18375_Mozhzhukhina |
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todo:paper_19327447_v117_n36_p18375_Mozhzhukhina2023-10-03T16:35:56Z Infrared spectroscopy studies on stability of dimethyl sulfoxide for application in a Li-air battery Mozhzhukhina, N. Méndez De Leo, L.P. Calvo, E.J. Dimethyl sulfoxide (DMSO) Electroreduction of oxygens Lithium-air battery Long-term experiments Nucleophilic attack Oxidation of DMSO Platinum cathodes Superoxide radical anions Anodic oxidation Charging (batteries) Dimethyl sulfoxide Electrolytic reduction Experiments Fourier transform infrared spectroscopy Gold Lithium Organic solvents Oxygen Platinum Lithium batteries In situ infrared subtractive normalized Fourier transform infrared spectroscopy (SNIFTIRS) experiments performed simultaneously with the electroreduction of oxygen on gold and platinum cathodes in LiPF6 dimethyl sulfoxide (DMSO) electrolyte have shown that the solvent is stable with respect to nucleophilic attack by the electrogenerated superoxide radical anion. However, long-term experiments with KO2 solutions in DMSO have shown a slow formation of dimethyl sulfone. Evidence of dimethyl sulfone formation by anodic oxidation of DMSO above 4.2 V (Li/Li+) in the presence of trace water has been obtained on gold. On platinum, this unwanted reaction in the charging cycle of a lithium-air battery takes place at lower potentials, i.e., 3.5 V. © 2013 American Chemical Society. Fil:Méndez De Leo, L.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Calvo, E.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_19327447_v117_n36_p18375_Mozhzhukhina |
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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 |
Dimethyl sulfoxide (DMSO) Electroreduction of oxygens Lithium-air battery Long-term experiments Nucleophilic attack Oxidation of DMSO Platinum cathodes Superoxide radical anions Anodic oxidation Charging (batteries) Dimethyl sulfoxide Electrolytic reduction Experiments Fourier transform infrared spectroscopy Gold Lithium Organic solvents Oxygen Platinum Lithium batteries |
| spellingShingle |
Dimethyl sulfoxide (DMSO) Electroreduction of oxygens Lithium-air battery Long-term experiments Nucleophilic attack Oxidation of DMSO Platinum cathodes Superoxide radical anions Anodic oxidation Charging (batteries) Dimethyl sulfoxide Electrolytic reduction Experiments Fourier transform infrared spectroscopy Gold Lithium Organic solvents Oxygen Platinum Lithium batteries Mozhzhukhina, N. Méndez De Leo, L.P. Calvo, E.J. Infrared spectroscopy studies on stability of dimethyl sulfoxide for application in a Li-air battery |
| topic_facet |
Dimethyl sulfoxide (DMSO) Electroreduction of oxygens Lithium-air battery Long-term experiments Nucleophilic attack Oxidation of DMSO Platinum cathodes Superoxide radical anions Anodic oxidation Charging (batteries) Dimethyl sulfoxide Electrolytic reduction Experiments Fourier transform infrared spectroscopy Gold Lithium Organic solvents Oxygen Platinum Lithium batteries |
| description |
In situ infrared subtractive normalized Fourier transform infrared spectroscopy (SNIFTIRS) experiments performed simultaneously with the electroreduction of oxygen on gold and platinum cathodes in LiPF6 dimethyl sulfoxide (DMSO) electrolyte have shown that the solvent is stable with respect to nucleophilic attack by the electrogenerated superoxide radical anion. However, long-term experiments with KO2 solutions in DMSO have shown a slow formation of dimethyl sulfone. Evidence of dimethyl sulfone formation by anodic oxidation of DMSO above 4.2 V (Li/Li+) in the presence of trace water has been obtained on gold. On platinum, this unwanted reaction in the charging cycle of a lithium-air battery takes place at lower potentials, i.e., 3.5 V. © 2013 American Chemical Society. |
| format |
JOUR |
| author |
Mozhzhukhina, N. Méndez De Leo, L.P. Calvo, E.J. |
| author_facet |
Mozhzhukhina, N. Méndez De Leo, L.P. Calvo, E.J. |
| author_sort |
Mozhzhukhina, N. |
| title |
Infrared spectroscopy studies on stability of dimethyl sulfoxide for application in a Li-air battery |
| title_short |
Infrared spectroscopy studies on stability of dimethyl sulfoxide for application in a Li-air battery |
| title_full |
Infrared spectroscopy studies on stability of dimethyl sulfoxide for application in a Li-air battery |
| title_fullStr |
Infrared spectroscopy studies on stability of dimethyl sulfoxide for application in a Li-air battery |
| title_full_unstemmed |
Infrared spectroscopy studies on stability of dimethyl sulfoxide for application in a Li-air battery |
| title_sort |
infrared spectroscopy studies on stability of dimethyl sulfoxide for application in a li-air battery |
| url |
http://hdl.handle.net/20.500.12110/paper_19327447_v117_n36_p18375_Mozhzhukhina |
| work_keys_str_mv |
AT mozhzhukhinan infraredspectroscopystudiesonstabilityofdimethylsulfoxideforapplicationinaliairbattery AT mendezdeleolp infraredspectroscopystudiesonstabilityofdimethylsulfoxideforapplicationinaliairbattery AT calvoej infraredspectroscopystudiesonstabilityofdimethylsulfoxideforapplicationinaliairbattery |
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