Artículos de revistas
A functionalized renewable carbon-based surface for sensor development
Fecha
2021-03-01Registro en:
Journal of Solid State Electrochemistry, v. 25, n. 3, p. 1093-1099, 2021.
1433-0768
1432-8488
10.1007/s10008-020-04882-x
2-s2.0-85099187100
Autor
Universidade Estadual Paulista (Unesp)
University of Toronto
Institución
Resumen
This paper describes the surface modification of glassy carbon (GC) electrodes with a bamboo-based renewable carbon (RC) before and after an acid functionalization procedure with a sulfonitric solution (1:3 HNO3/H2SO4). The morphology and structural characterization indicate an increase of functional groups in the functionalized renewable carbon (RCF) surface. The enhanced electroanalytical properties of RC and RCF were evaluated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) in two different setups, in the presence of the redox couple ([Fe(CN)6]3−/4−) and escitalopram (EST). The results revealed an enhancement for the electrochemical responses of both inorganic and organic compounds in the electrolyte. Therefore, the use of new carbon-based materials such as renewable carbon for development of electrochemical sensors brings a fresh approach to low-cost device development.