Electrochemical oxidation of organic pollutants in water at metal oxide electrodes: A simple theoretical model including direct and indirect oxidation processes at the anodic surface

Scialdone, Onofrio

doi:10.1016/j.electacta.2009.05.066

Cited by 114 publications

(77 citation statements)

References 23 publications

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“…This increases the efficiency of the parasitic reaction causing changes at the Pt electrode surface, which decreases its activity towards the OA oxidation (poorer adsorptive properties) [15]. This deactivation of Pt towards OA oxidation has been reported to occur at potentials at which a complete monomolecular layer of oxygen is formed, and attempts of interpretation have been made, based on adsorption of oxygen species [16][17][18][19][20]. Based on these assumptions, the plateau formed after elimination about 80 % of OA, is due to the deactivation of active sites on Pt surface (oxidized Pt surface: PtÀOHC!PtÀOC + H + + e) involving most probably the oxygen evolution reaction as the main process (2PtÀOC!…”

Section: à2mentioning

confidence: 97%

Cysteic Acid‐Modified Glassy Carbon Electrode for Monitoring Oxalic Acid (OA) Concentration During Its Electrochemical Oxidation at Ti/Pt Anode

et al. 2014

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The aim of this manuscript is to develop a combined method for the detection and elimination of oxalic acid (OA) in aqueous environment. For that, the surface of glassy carbon (GC) electrode has been modified by oxidation of L‐cysteine using cyclic voltammetric (CV) technique. After modification, the formation of a compact and uniform cysteic acid layer film was achieved and it was confirmed by surface analysis (scanning electron microscopy (SEM) and atomic force microscopy (AFM)). Estimation of the linear range, calibration function and limit of detection for OA were performed by differential pulse voltammetry using Cysteine‐modified electrode (Cysteine‐MGC). Due to its stability and sensitive response to OA, it was used for monitoring OA during its electrochemical oxidation at Ti/Pt anode. DPV analyses have been compared with classic titration method and HPLC achieving a good fit, confidence intervals and limits. The results are described and discussed in the light of the existing literature.

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Section: à2mentioning

confidence: 97%

Cysteic Acid‐Modified Glassy Carbon Electrode for Monitoring Oxalic Acid (OA) Concentration During Its Electrochemical Oxidation at Ti/Pt Anode

et al. 2014

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“…In particular, the dimensionally stable anode (DSA) was recently used as active anodic materials in electrochemical processes. Many studies have shown that the dimensionally stable anode (DSA) presents a good use of electrochemical oxidation application in industrial water and wastewater treatment [11,24,25] and presents also high efficiencies in the production of hypochlorite [26][27][28]. DSA has also been successfully used in the electrochemical mineralization of various organic compounds [11].…”

Section: Introductionmentioning

confidence: 99%

The electrolytic treatment of synthetic urine using DSA electrodes

Dbira

Bensalah

Cañizares

et al. 2015

Journal of Electroanalytical Chemistry

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“…Electrochemical processes are considered as very promising for the abatement of organic pollutants toxic or refractory to biological degradation [18][19][20][21][22][23][24][25][26][27][28]. Indeed, this method uses a clean reagent, the electron, and very mild operative conditions (ambient temperature and atmospheric pressure) with limited operative costs [20].…”

Section: Introductionmentioning

confidence: 99%