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Graphene Oxide as a Platform for Copper Pentacyanonitrosylferrate Nanoparticles and their Behavior in the Electro‐oxidation of N‐Acetylcysteine
Author(s) -
Maraldi Vitor Alexandre,
Colmenares Yormary Nathaly,
Pereira Barbosa Priscila Fernanda,
Mastelaro Valmor,
Ribeiro do Carmo Devaney
Publication year - 2020
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201900493
Subject(s) - graphene , bimetallic strip , raman spectroscopy , x ray photoelectron spectroscopy , cyclic voltammetry , oxide , copper , nanoparticle , materials science , graphite , electrochemistry , surface modification , electrode , inorganic chemistry , voltammetry , nuclear chemistry , chemical engineering , nanotechnology , chemistry , metallurgy , metal , physics , optics , engineering
This work describes the preparation of graphene oxide by the Modified Hummers Method and the chemical modification of its surface with nanoparticles of copper pentacyanonitrosylferrate(III) (GOCuNP). The materials obtained were characterized by Raman spectroscopy, x‐ray photoelectron spectroscopy and transmission electron microscopy. The GOCuNP was characterized by cyclic voltammetry using a graphite paste electrode that presented electrocatalytic response for N‐acetylcysteine with detection limit of 2.97×10 −5 mol L −1 at concentration range of 3.00×10 −5 to 6.00×10 −3 mol L −1 of N‐acetylcysteine. By this way, the bimetallic complex formed is included in the list of materials obtained as potential candidates for the construction of electrochemical sensors for N‐acetylcysteine detection.