Artículos de revistas
An innovative micrometric granular graphite–glass system composite electrode “ready to use” in voltammetry techniques
Fecha
2014-06Registro en:
Di Nezio, Maria Susana; Centurión, María Eugenia; Frechero, Marisa Alejandra; Presa, Jimena Mailén; Pierini, Gastón Dario; An innovative micrometric granular graphite–glass system composite electrode “ready to use” in voltammetry techniques; Elsevier Science; Sensors and Actuators B: Chemical; 202; 6-2014; 433-439
0925-4005
CONICET Digital
CONICET
Autor
Pierini, Gastón Dario
Presa, Jimena Mailén
Frechero, Marisa Alejandra
Centurión, María Eugenia
Di Nezio, Maria Susana
Resumen
A low cost composite electrodes employing tellurite oxide, vanadium oxide and micrometric granular graphite (NWE), were designed as an alternative to be used as working electrode in voltammetry techniques. The synthesis of these composite electrodes is carried out easily; in a short time and their surface not require previous preparation. X-ray diffraction, X-ray fluorescence spectrometry and optical microscopy studies were used to determine the morphology and chemical composition of these electrodes. The conductivity characterization was conducted with impedance and electrochemical measurements. The electrochemical properties of NWE were studied using potassium hexacyanoferrate (II) and ascorbic acid system.