EQCM and RDE/RRDE study of soluble iron phthalocyanine bifunctional catalyst for the lithium-oxygen battery

Soluble iron phtalocyanine (FePc) has been studied as a bifunctional catalyst for the oxygen reduction reaction (ORR) and oxygen evolution (OER) in lithium air cathodes by means of electrogravimetry with shear wave dissipation, cyclic voltammetry (CV) and rotating ring disk electrode (RRDE). The oxy...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Torres, W.R., Davia, F., Del Pozo, M., Tesio, A.Y., Calvoz, E.J.
Formato: JOUR
Materias:
Catalysts
Cyclic voltammetry
Electric batteries
Electrodes
Electrolytes
Electrolytic reduction
Lithium
Lithium batteries
Lithium compounds
Shear flow
Shear waves
Bi-functional catalysts
Concentration of fe
Lithium-oxygen batteries
Oxygen evolution
Oxygen reduction reaction
Redox mediators
Rotating ring-disk electrode
Wave dissipation
Oxygen
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00134651_v164_n14_pA3785_Torres
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:Soluble iron phtalocyanine (FePc) has been studied as a bifunctional catalyst for the oxygen reduction reaction (ORR) and oxygen evolution (OER) in lithium air cathodes by means of electrogravimetry with shear wave dissipation, cyclic voltammetry (CV) and rotating ring disk electrode (RRDE). The oxygen reduction reaction (ORR) has been studied on Au in oxygen saturated TBA-PF6 in DMSO and LiTFSI-DMSO electrolyte for increasing concentration of Fe-phtalocyanine as redox mediator for the two-electron ORR at 2.2 V and the oxidation of the surface Li2O2 product below 3.6 V vs. Li/Li+ where the solvent is stable. The soluble FePc catalyst promotes the ORR solution phase mechanism. © 2017 The Electrochemical Society. All rights reserved.

Ejemplares similares