Electrocatalytic Activity of Nanohybrids Based on Carbon Nanomaterials and MFe 2 O 4 (M=Co, Mn) towards the Reduction of Hydrogen Peroxide

We report the advantages of hybrid nanomaterials prepared with electrogenerated ferrites (MFe 2 O 4 ; M: Co, Mn) and multi‐walled carbon nanotubes (MWCNTs) or thermally reduced graphene oxide (TRGO) on the electro‐reduction of hydrogen peroxide. Glassy carbon electrodes (GCE) modified with these hyb...

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Published in:Electroanalysis (New York, N.Y.) N.Y.), 2018-08, Vol.30 (8), p.1621-1626
Main Authors: Gutierrez, Fabiana A., Mazario, Eva, Menéndez, Nieves, Herrasti, Pilar, Rubianes, María D., Zagal, José H., Yañez, C., Rivas, Gustavo A., Bollo, Soledad, Recio, F. Javier
Format: Article
Language:English
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Summary:We report the advantages of hybrid nanomaterials prepared with electrogenerated ferrites (MFe 2 O 4 ; M: Co, Mn) and multi‐walled carbon nanotubes (MWCNTs) or thermally reduced graphene oxide (TRGO) on the electro‐reduction of hydrogen peroxide. Glassy carbon electrodes (GCE) modified with these hybrid nanomaterials dispersed in Nafion/isopropanol demonstrated a clear synergism on the catalytic reduction of reduction of hydrogen peroxide at pH 13.00. The intimate interaction between MFe 2 O 4 and carbon nanomaterials allowed a better electronic transfer and a facilitated regeneration of M 2+ at the carbon nanomaterials, reducing the charge transfer resistances for hydrogen peroxide reduction and increasing the sensitivities of the amperometric response.
ISSN:1040-0397
1521-4109
DOI:10.1002/elan.201800209