Direct measurement of lithium ion fluxes with a rotating ring disc electrode in potentiometric mode

Using potentiometric detection of lithium ions with a rotating ring disc electrode (RRDE), we report for the first time the simultaneous direct measurement of lithium ion fluxes for two experiments: a) O2 reduction in LiPF6 DMSO electrolyte and b) insertion and release of Li+ into and from LiMn2O4 s...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Pozo, M.D., Marchini, F., Cantoni, L., Calvo, E.J.
Formato:	JOUR
Materias:	LiMn2O4 Lithium ORR Potentiometric RRDE Electrodes Electrolytes Ions Manganese compounds Potentiometers (electric measuring instruments) Potentiometric detection Potentiometric technique Quantitative description Rotating ring disc electrode Surface concentration Lithium compounds
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00134686_v296_n_p901_Pozo
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00134686_v296_n_p901_Pozo
record_format	dspace
spelling	todo:paper_00134686_v296_n_p901_Pozo2023-10-03T14:10:54Z Direct measurement of lithium ion fluxes with a rotating ring disc electrode in potentiometric mode Pozo, M.D. Marchini, F. Cantoni, L. Calvo, E.J. LiMn2O4 Lithium ORR Potentiometric RRDE Electrodes Electrolytes Ions Lithium Manganese compounds Potentiometers (electric measuring instruments) LiMn2O4 Potentiometric Potentiometric detection Potentiometric technique Quantitative description Rotating ring disc electrode RRDE Surface concentration Lithium compounds Using potentiometric detection of lithium ions with a rotating ring disc electrode (RRDE), we report for the first time the simultaneous direct measurement of lithium ion fluxes for two experiments: a) O2 reduction in LiPF6 DMSO electrolyte and b) insertion and release of Li+ into and from LiMn2O4 spinel structure in contact with aqueous Li+ ion solution. The theory of potentiometric RRDE developed for local pH measurement (Albery, Calvo, 1983) could be applied to obtain quantitative description of lithium surface concentration which differs from the analytical concentration under current flow. The new potentiometric technique can detect mismatch of electron and lithium ion fluxes. © 2018 Elsevier Ltd JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00134686_v296_n_p901_Pozo
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	LiMn2O4 Lithium ORR Potentiometric RRDE Electrodes Electrolytes Ions Lithium Manganese compounds Potentiometers (electric measuring instruments) LiMn2O4 Potentiometric Potentiometric detection Potentiometric technique Quantitative description Rotating ring disc electrode RRDE Surface concentration Lithium compounds
spellingShingle	LiMn2O4 Lithium ORR Potentiometric RRDE Electrodes Electrolytes Ions Lithium Manganese compounds Potentiometers (electric measuring instruments) LiMn2O4 Potentiometric Potentiometric detection Potentiometric technique Quantitative description Rotating ring disc electrode RRDE Surface concentration Lithium compounds Pozo, M.D. Marchini, F. Cantoni, L. Calvo, E.J. Direct measurement of lithium ion fluxes with a rotating ring disc electrode in potentiometric mode
topic_facet	LiMn2O4 Lithium ORR Potentiometric RRDE Electrodes Electrolytes Ions Lithium Manganese compounds Potentiometers (electric measuring instruments) LiMn2O4 Potentiometric Potentiometric detection Potentiometric technique Quantitative description Rotating ring disc electrode RRDE Surface concentration Lithium compounds
description	Using potentiometric detection of lithium ions with a rotating ring disc electrode (RRDE), we report for the first time the simultaneous direct measurement of lithium ion fluxes for two experiments: a) O2 reduction in LiPF6 DMSO electrolyte and b) insertion and release of Li+ into and from LiMn2O4 spinel structure in contact with aqueous Li+ ion solution. The theory of potentiometric RRDE developed for local pH measurement (Albery, Calvo, 1983) could be applied to obtain quantitative description of lithium surface concentration which differs from the analytical concentration under current flow. The new potentiometric technique can detect mismatch of electron and lithium ion fluxes. © 2018 Elsevier Ltd
format	JOUR
author	Pozo, M.D. Marchini, F. Cantoni, L. Calvo, E.J.
author_facet	Pozo, M.D. Marchini, F. Cantoni, L. Calvo, E.J.
author_sort	Pozo, M.D.
title	Direct measurement of lithium ion fluxes with a rotating ring disc electrode in potentiometric mode
title_short	Direct measurement of lithium ion fluxes with a rotating ring disc electrode in potentiometric mode
title_full	Direct measurement of lithium ion fluxes with a rotating ring disc electrode in potentiometric mode
title_fullStr	Direct measurement of lithium ion fluxes with a rotating ring disc electrode in potentiometric mode
title_full_unstemmed	Direct measurement of lithium ion fluxes with a rotating ring disc electrode in potentiometric mode
title_sort	direct measurement of lithium ion fluxes with a rotating ring disc electrode in potentiometric mode
url	http://hdl.handle.net/20.500.12110/paper_00134686_v296_n_p901_Pozo
work_keys_str_mv	AT pozomd directmeasurementoflithiumionfluxeswitharotatingringdiscelectrodeinpotentiometricmode AT marchinif directmeasurementoflithiumionfluxeswitharotatingringdiscelectrodeinpotentiometricmode AT cantonil directmeasurementoflithiumionfluxeswitharotatingringdiscelectrodeinpotentiometricmode AT calvoej directmeasurementoflithiumionfluxeswitharotatingringdiscelectrodeinpotentiometricmode
_version_	1807320505398591488

Direct measurement of lithium ion fluxes with a rotating ring disc electrode in potentiometric mode

Ejemplares similares