Artículo

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" (2019) Electrochimica Acta. 296:901-906
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Abstract:

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

Registro:

Documento: Artículo
Título:Direct measurement of lithium ion fluxes with a rotating ring disc electrode in potentiometric mode
Autor:Pozo, M.D.; Marchini, F.; Cantoni, L.; Calvo, E.J.
Filiación:INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, Ciudad Universitaria, Buenos Aires, AR-1428, Argentina
Palabras clave: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
Año:2019
Volumen:296
Página de inicio:901
Página de fin:906
DOI: http://dx.doi.org/10.1016/j.electacta.2018.11.069
Handle:http://hdl.handle.net/20.500.12110/paper_00134686_v296_n_p901_Pozo
Título revista:Electrochimica Acta
Título revista abreviado:Electrochim Acta
ISSN:00134686
CODEN:ELCAA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00134686_v296_n_p901_Pozo

Referencias:

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Citas:

---------- APA ----------
Pozo, M.D., Marchini, F., Cantoni, L. & Calvo, E.J. (2019) . Direct measurement of lithium ion fluxes with a rotating ring disc electrode in potentiometric mode. Electrochimica Acta, 296, 901-906.
http://dx.doi.org/10.1016/j.electacta.2018.11.069
---------- CHICAGO ----------
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" . Electrochimica Acta 296 (2019) : 901-906.
http://dx.doi.org/10.1016/j.electacta.2018.11.069
---------- MLA ----------
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" . Electrochimica Acta, vol. 296, 2019, pp. 901-906.
http://dx.doi.org/10.1016/j.electacta.2018.11.069
---------- VANCOUVER ----------
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. Electrochim Acta. 2019;296:901-906.
http://dx.doi.org/10.1016/j.electacta.2018.11.069