Comparison of Ti/PbO2 electrode and Ti/RuO2-IrO2 electrode on their electrochemical performance

Yu, Naichuan; Cao, Hanfei; Hong, Xintong; Mao, Xianhe; Li, Tongzhen; Yuan, Hao; Li, Jingnan; Luo, Fuchen; Li, Mingyu

doi:10.1007/s10008-023-05730-4

Cited by 5 publications

(1 citation statement)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Can O. T. et al investigated MMO electrodes for the electrochemical oxidation of Bisphenol A (BPA) [ 14 ]; they observed that at a low current density of 25 mA/cm 2 , the Total Organic Carbon (TOC) removal efficiencies of the MMO electrodes were 61% (Pt), 54% (RuO 2 -IrO 2 ), 53% (RuO 2 -TiO 2 ), 50% (IrO 2 -Ta 2 O 5 ), and 49% (Pt-IrO 2 ), respectively. Despite the widespread employment of RuO 2 -based anodes in the electrochemical oxidation of phenol pollutants, anode surfaces appear to have cracks, which is a typical feature of the thermal deposition method [ 15 ]. These cracks can cause the metal oxide layer to be corroded by the electrolyte, resulting in the deactivation of the anode.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Degradation of Phenolic Wastewater Using a Zero-Gap Flow-Through Reactor Coupled with a 3D Ti/RuO2-TiO2@Pt Electrode

Zhu,

Wen,

et al. 2024

Molecules

View full text Add to dashboard Cite

In this study, the performance of a zero-gap flow-through reactor with three-dimensional (3D) porous Ti/RuO2-TiO2@Pt anodes was systematically investigated for the electrocatalytic oxidation of phenolic wastewater, considering phenol and 4-nitrophenol (4-NP) as the target pollutants. The optimum parameters for the electrochemical oxidation of phenol and 4-NP were examined. For phenol degradation, at an initial concentration of 50 mg/L, initial pH of 7, NaCl concentration of 10.0 g/L, current density of 10 mA/cm2, and retention time of 30 min, the degradation efficiency achieved was 95.05%, with an energy consumption of 15.39 kWh/kg; meanwhile, for 4-NP, the degradation efficiency was 98.42% and energy consumption was 19.21 kWh/kg (at an initial concentration of 40 mg/L, initial pH of 3, NaCl concentration of 10.0 g/L, current density of 10 mA/cm2, and retention time of 30 min). The electrocatalytic oxidation of phenol and 4-NP conformed to the pseudo-first-order kinetics model, and the k values were 0.2562 min−1 and 0.1736 min−1, respectively, which are 1.7 and 3.6-times higher than those of a conventional electrolyzer. Liquid chromatography–mass spectrometry (LC–MS) was used to verify the intermediates formed during the degradation of phenol or 4-NP and a possible degradation pathway was provided. The extremely narrow electrode distance and the flow-through configuration of the zero-gap flow-through reactor were thought to be essential for its lower energy consumption and higher mass transfer efficiency. The zero-gap flow-through reactor with a novel 3D porous Ti/RuO2-TiO2@Pt electrode is a superior alternative for the treatment of industrial wastewater.

show abstract

Section: Introductionmentioning

confidence: 99%