In this work, a square-wave voltammetric method based on sulphite electrochemical
reduction was developed for quantification of this preservative in commercial beverages. A …

Abstract α-FeOOH (goethite) and α-Fe 2 O 3 (hematite) nanostructures have been
successfully synthesized using the microwave-assisted hydrothermal (MAH) method and by …

We present electrocatalytic films of ClFe (III) 5, 10, 15, 20-tetrakis (p-aminophenyl) porphyrin
(FeClT (p-NH 2 Ph) P) formed by new electrochemical deposition method using oxygen …

The present work describes the electrocatalytic reduction of dioxygen using polymerized Co-
4-pyridylporphyrin in presence of electrochemically reduced graphene oxide. The polymeric …

Résumé The developments concerning new hybrids based on porphyrin derivatives and
colloids destined for the detection of ascorbic acid (AA) in the relevant range for medical …

A novel carbon paste electrode modified with carbon nanotube and benzoylferrocene (BF)
was fabricated. The electrochemical study of the modified electrode, as well as its efficiency …

A porphyrin copolymer has been obtained upon submitting a mixture of zinc-β-
octaethylporphyrin (OEP) and 1, 1 ″-(1, 3-propanediyl) bis-4, 4′-bipyridinium to an …

In this work, we present a comparison among three glassy carbon electrodes modified by Co-
porphyrin, ortho-phenylenediamine, or both simultaneously. This comparison shows the …

In this work a new composite electrode for the electrocatalytic reduction of oxygen (ORR) is
presented. For this purpose, glassy carbon electrodes (GC) were modified with Co II and Fe …

The aim of this work is to study the sulfite oxidation mediated by glassy carbon electrodes
modified with copolymers formed by ortho-phenylenediamine (OPD) and Co (II)-tetrakis …