NICKEL NANOWIRES-BASED COMPOSITE MATERIAL APPLIED TO THE HIGHLY ENHANCED NON-ENZYMATIC ELECTRO-OXIDATION OF ETHANOL

CECILIA S. TETTAMANTI; MARÍA LAURA RAMÍREZ; FABIANA A. GUTIERREZ; PAULA BERCOFF; GUSTAVO A. RIVAS; RODRÍGUEZ, MARCELA C.

MICROCHEMICAL JOURNAL

ELSEVIER SCIENCE BV

Lugar: Amsterdam; Año: 2018 vol. 142 p. 159 - 159

0026-265X

n this work, we report the building of a nanostructured platform with activity towards the non-enzymatic oxidation of ethanol. This nanostructured platform was obtained by including Ni nanowires (NiNWs) in a graphite matrix composite. The NiNWs were obtained by electrochemical synthesis using commercial aluminum oxide templates and characterized by scanning electronic microscopy (SEM), X-ray emission (EDS) and X-ray diffraction (XRD). The composite transducer (CPE-NiNWs) was studied by cyclic voltammetry, amperometry and electrochemical impedance spectroscopy (EIS) assays. CPE-NiNWs proved to be highly sensitive for the detection of ethanol in 0.10 M NaOH, demonstrating a wide linear range (1.0x10-4-1.1x10-2 M) and a detection limit of 3.10x10-7M. CPE-NiNWs was used for the efficient quantification of ethanol in distilled alcoholic beverages, obtaining results comparable to those reported by the manufacturers. The operational conditions of CPE-NiNWs were accomplished in terms of the b