Electrocatalytic activity of nanohybrids based on carbon nanomaterials and MFe2O4 (M= Co, Mn) towards the reduction of hydrogen peroxide

FABIANA GUTIERREZ; EVA MAZARIO; NIEVES MENÉNDEZ; PILAR HERRASTI; MARÍA RUBIANES; JOSÉ ZAGAL; CLAUDIA YÁÑEZ; SOLEDAD BOLLO; JAVIER RECIO; RIVAS, GUSTAVO A

ELECTROANALYSIS

WILEY-V C H VERLAG GMBH

Lugar: Weinheim; Año: 2018

1040-0397

We report the advantages of hybrid nanomaterials prepared with electrogenerated ferrites (MFe2O4; M: Co, Mn) and multiwalledcarbon nanotubes (MWCNTs) or thermally reduced graphene oxide (TRGO) on the electro-reduction of hydrogenperoxide. Glassy carbon electrodes (GCE) modified with these hybrid nanomaterials dispersed in Nafion/isopropanoldemonstrated a clear synergism on the catalytic reduction of reduction of hydrogen peroxide at pH 13.00. The intimateinteraction between MFe2O4 and carbon nanomaterials allowed a better electronic transfer and a facilitated regeneration ofM2+ at the carbon nanomaterials, reducing the charge transfer resistances for hydrogen peroxide reduction and increasingthe sensitivities of the amperometric response