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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Autores principales:	Mendez De Leo, Lucila Paula, Calvo, Ernesto Julio
Publicado:	2013
Materias:	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
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19327447_v117_n36_p18375_Mozhzhukhina http://hdl.handle.net/20.500.12110/paper_19327447_v117_n36_p18375_Mozhzhukhina
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_19327447_v117_n36_p18375_Mozhzhukhina
record_format	dspace
spelling	paper:paper_19327447_v117_n36_p18375_Mozhzhukhina2023-06-08T16:31:33Z Infrared spectroscopy studies on stability of dimethyl sulfoxide for application in a Li-air battery Mendez De Leo, Lucila Paula Calvo, Ernesto Julio 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. 2013 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19327447_v117_n36_p18375_Mozhzhukhina http://hdl.handle.net/20.500.12110/paper_19327447_v117_n36_p18375_Mozhzhukhina
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	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 Mendez De Leo, Lucila Paula Calvo, Ernesto Julio 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.
author	Mendez De Leo, Lucila Paula Calvo, Ernesto Julio
author_facet	Mendez De Leo, Lucila Paula Calvo, Ernesto Julio
author_sort	Mendez De Leo, Lucila Paula
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
publishDate	2013
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19327447_v117_n36_p18375_Mozhzhukhina http://hdl.handle.net/20.500.12110/paper_19327447_v117_n36_p18375_Mozhzhukhina
work_keys_str_mv	AT mendezdeleolucilapaula infraredspectroscopystudiesonstabilityofdimethylsulfoxideforapplicationinaliairbattery AT calvoernestojulio infraredspectroscopystudiesonstabilityofdimethylsulfoxideforapplicationinaliairbattery
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Infrared spectroscopy studies on stability of dimethyl sulfoxide for application in a Li-air battery

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