Investigation of ELectrochemical Behavior of Ferri/Ferrocyanide Redox on Carbon Paste Based Electrodes for Mercury (II) Electrochemical Sensor DOI Open Access

N apos dri Roger,

G. T. Paul,

Ali Sanou

et al.

American Journal of Applied Chemistry, Journal Year: 2024, Volume and Issue: 12(4), P. 89 - 94

Published: Sept. 26, 2024

The electrochemical characterisation of the materials used to make sensors is mostly based on cyclic voltametry method. Cyclic an electrical method for dynamic study systems. Through a reversible potential sweep, material studied in contact with ferri/ferrocyanide. Ferri/Ferrocyanide one most chemical compounds electrochemistry and photo-electrochemistry because its singular known controlled reactivity. appearance voltamorams mathematical expressions it possible collect information necessary understanding reaction. An electrode considered active if shows peak redox marker voltametry. mechanism reaction also assessed using difference ΔEp. nature mass transport determined by anodic cathodic current ratio Ipa/Ipc. aim this work compare activity Feri/Ferrocyanide couple achieved carbon paste-based electrodes application sensor. ΔEp showed that composition influences at interface. Material electronic charge transfer are impacted complex phenomena. By studying quantities ΔEp, formal standard E° Ipa/Ipc, developed can be optimised.

Language: Английский

Synthesis and Voltammetric Studies Concerning a Phenyl Trisilanol Polyhedral Oligosilsesquioxane Modified with Phosphate and Methylene Blue for Pyridoxine Detection DOI Open Access

Murilo Santos Peixoto,

Devaney Ribeiro do Carmo

Electroanalysis, Journal Year: 2025, Volume and Issue: 37(3)

Published: March 1, 2025

This study describes the synthesis of a phenyl trisilanol polyhedral oligosilsesquioxane (POSS) employing calcium and its subsequent modification by phosphate methylene blue for electrochemical applications. Fourier transform infrared spectroscopy, X‐ray photoelectron energy‐dispersive scanning electron microscopy, were employed to characterize developed material. The obtained POSS was characterized cyclic coltammetry graphite paste electrode, exhibiting well‐defined redox pairs. modified electrode demonstrated an adequate electrocatalytic response pyridoxine. Regarding catalytic pyridoxine electro‐oxidation, exhibited linear ranging from 7.0 × 10 − 6 1.0 ³ mol L 1 , with limit detection 3.24 . studied material, therefore, comprises potential candidate development sensors detection.

Language: Английский

Citations

0
Investigation of ELectrochemical Behavior of Ferri/Ferrocyanide Redox on Carbon Paste Based Electrodes for Mercury (II) Electrochemical Sensor DOI Open Access

N apos dri Roger,

G. T. Paul,

Ali Sanou

et al.

American Journal of Applied Chemistry, Journal Year: 2024, Volume and Issue: 12(4), P. 89 - 94

Published: Sept. 26, 2024

The electrochemical characterisation of the materials used to make sensors is mostly based on cyclic voltametry method. Cyclic an electrical method for dynamic study systems. Through a reversible potential sweep, material studied in contact with ferri/ferrocyanide. Ferri/Ferrocyanide one most chemical compounds electrochemistry and photo-electrochemistry because its singular known controlled reactivity. appearance voltamorams mathematical expressions it possible collect information necessary understanding reaction. An electrode considered active if shows peak redox marker voltametry. mechanism reaction also assessed using difference ΔEp. nature mass transport determined by anodic cathodic current ratio Ipa/Ipc. aim this work compare activity Feri/Ferrocyanide couple achieved carbon paste-based electrodes application sensor. ΔEp showed that composition influences at interface. Material electronic charge transfer are impacted complex phenomena. By studying quantities ΔEp, formal standard E° Ipa/Ipc, developed can be optimised.

Language: Английский

Citations

0