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...
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2019
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00134686_v296_n_p901_Pozo http://hdl.handle.net/20.500.12110/paper_00134686_v296_n_p901_Pozo |
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paper:paper_00134686_v296_n_p901_Pozo2023-06-08T14:35:50Z Direct measurement of lithium ion fluxes with a rotating ring disc electrode in potentiometric mode 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 2019 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00134686_v296_n_p901_Pozo 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 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 |
| 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 |
| publishDate |
2019 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00134686_v296_n_p901_Pozo http://hdl.handle.net/20.500.12110/paper_00134686_v296_n_p901_Pozo |
| _version_ |
1768544759563943936 |