A paramount role of surface structure and composition on the kinetics of electrocatalytic reactions has been realized with the establishment of electrocatalysis as a science. Consequently, a variation in the surface structure, and a modification of surface composition is expected to result in a considerable alternation of the electrocatalytic properties of electrodes. Reliable data on the role ...

This work investigates the application of the electro-oxidation technology provided with boron doped diamond (BDD), an electrode material which has shown outstanding properties in oxidation of organic and inorganic compounds, for the treatment of reverse osmosis (RO) concentrates generated in tertiary wastewater treatment plants (WWTP). Chemical oxygen demand (COD), ammonium and several anions ...

The three-dimensional electro-Fenton method was used in the folic acid wastewater pretreatment process. In this study, we researched the degradation of folic acid and the effects of different parameters such as the air sparging rate, current density, pH and reaction time on chemical oxygen demand (COD) removal in folic acid wastewater. A four-level and four-factor orthogonal test was designed a...

We report the first in situ quantitative visualization and characterization of electro-induced chitosan hydrogel growth in an aqueous environment. This was enabled with a pair of sidewall electrodes within a transparent fluidic system, which allowed us to resolve the electrogelling mechanism and interpret the dominant causes responsible for the formation and density distribution of the deposite...

Data on the study of kinetics and mechanism copper electro-oxidation -reduction processes in alkaline neutral solutions were obtained this work. Patterns electrochemical oxidation using alternating current established. Based data polarisation measurements kinetic parameters calculated: heterogeneous rate constant, effective activation energy electro-oxidation, which allow to establish course me...

This study presents the theory and kinetics of electrochemical dlegradation of resorcinol in the presence of chloride using Tifl'i02 Ru02 Ir02 electrode. The rate constant is affected by chloride concentration, initial resorcinol concentration and current density. The rate of electrochemical oxidation is found to be a pseudo first order kinetic process. The maximum rate of reaction is obtained ...

Introduction: Perchloroethylene (PCE) is one of the most well-known chlorinated organic compounds recently detected in aqueous environments. The presence of PCE in aquatic ecosystems has caused many health problems and environmental challenges. Therefore, its removal and treatment from aqueous environments are essential. Materials and Methods: The electro-Fenton (EF) process was carried out in...

We use spatially resolved photoelectron spectroscopy performed in operando to identify the reaction intermediates of the hydrogen electro-oxidation reaction on yttria-stabilized zirconia (YSZ) electrolytes with Pt electrodes. We find that hydroxyl on the zirconia electrolyte is a reaction intermediate in the hydrogen oxidation reaction and that it participates in the rate-determining step. In c...

We present a theoretical and numerical scheme that enables quantifying hydrogen ingress in metals for arbitrary environments defect geometries. This is achieved by explicitly resolving the electrochemical behaviour of electrolyte, corrosion reactions, kinetics surface adsorption, uptake, diffusion trapping mechanically-deforming solids. new framework used to produce maps relate absorbed with ap...

This study focused on the effects of electro-oxidation combined with electro-Fenton process using boron-doped diamond (BDD) electrodes degradation biorefractory food colorant caramel. Aqueous solutions containing Caramel Class IV, III and Acid Orange 7 were comparatively treated by electrochemical advanced oxidation processes, including (EO), (EF) (EO + EF). The experiments performed in a stirr...