Electrochemical oxidation of trans-3,4-dihydroxycinnamic acid at PbO2 electrodes: direct electrolysis and ozone mediated reactions compared

Амаделли, Р.; Battisti, Achille De; Гиренко, Д. В.; Kovalyov, S. V.; Величенко, А. Б.

doi:10.1016/s0013-4686(00)00590-9

Cited by 116 publications

(63 citation statements)

References 34 publications

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“…Ozone electrogenerated at PbO 2 has been shown to be effective for the destruction of a wide range of organics including trans-3,4-dihydroxycinnamic acid, 202 phenols, 195 reactive dyes. 200 Amadelli and coworkers 202 suggest that the most effective way to use the ozone is to feed it to a hydrogen peroxide forming cathode since this generates a very high concentration of free radicals.…”

Section: The Generation Of Ozonementioning

confidence: 99%

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Electrodeposited lead dioxide coatings

2011

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Lead dioxide coatings on inert substrates such as titanium and carbon now offer new opportunities for a material known for 150 years. It is now recognised that electrodeposition allows the preparation of stable coatings with different phase structures and a wide range of surface morphologies. In addition, substantial modification to the physical properties and catalytic activities of the coatings are possible through doping and the fabrication of nanostructured deposits or composites. In addition to applications as a cheap anode material in electrochemical technology, lead dioxide coatings provide unique possibilities for probing the dependence of catalytic activity on layer composition and structure (critical review, 256 references).

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Section: The Generation Of Ozonementioning

confidence: 99%

“…200 Amadelli and coworkers 202 suggest that the most effective way to use the ozone is to feed it to a hydrogen peroxide forming cathode since this generates a very high concentration of free radicals. The ozone output also kills many germs, etc.…”

Section: The Generation Of Ozonementioning

confidence: 99%

Electrodeposited lead dioxide coatings

2011

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“…Despite O 3 production via the corona process being rather expensive, the chemical has a number of appealing advantages: It is a very strong oxidant; its decomposition leads to environmentally friendly products (O 2 ); its instability (t1 /2 = 20-90 min, depending on environment) requires that it is produced "on spot", thereby reducing transportation and storage expenses. As a result, O 3 has found application in fields such as: water treatment, combustion of resistant organics, clean-up of effluents, bleaching of wood pulp [2,8,15,16,29].…”

Section: Introductionmentioning

confidence: 99%

“…One of the drawbacks of ex situ use of ozone is that the electric energy input is not totally exploited. Amadelli et al [29] recently proposed an elegant way to overcome this problem, combining anodically generated O 3 with H 2 O 2 produced at an O 2 cathode (cathodic oxidation). To do so, these authors swapped the O 3 /O 2 gas mixture produced at the anode into the cathodic compartment containing the pollutant.…”

Section: Introductionmentioning

confidence: 99%

Green processes for environmental application. Electrochemical ozone production

Silva¹,

Faria

Boodts³

2001

Pure and Applied Chemistry

116

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Several aspects of electrochemical ozone production (EOP) on β-PbO 2 were investigated. The morphology of the electrode material was determined in situ using extensive (total, external, and internal differential capacity) and intensive parameters (the morphology factor, ϕ) permitting comparison with results of other laboratories if appropriate electrode characterization parameters are available. The influence of the nature of the supporting electrolyte on the oxygen evolution reaction (OER)/EOP processes was investigated using polarization curves, recorded under quasi-stationary conditions, point-by-point polarization, and chronopotentiometry. The performance of the several β-PbO 2 /electrolyte system was evaluated using the apparent specific power criterion. A detailed mechanism for EOP is proposed.

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“…Besides, it should be noted that, electrochemical oxidation of organic compounds at PbO 2 anode can be selective at low anodic potentials (Clarke et al 1976;Abaci et al 2002Abaci et al , 2005Amadalli et al 2000;Couper et al 1990;Savall 1998). So, oxidation at this electrode material seems to be a promising method for organic electrosynthesis of high added value products.…”

Section: Introductionmentioning

confidence: 99%

Depollution of 1,3,5-trimethoxybenzene through its electrochemical conversion into a high added value product 2,6-dimethoxy-1,4-benzoquinone

Hamza

Bouaziz

Njah

et al. 2017

Euro-Mediterr J Environ Integr

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The first part of this work relates to the analytical study of the electrochemical behavior of 1,3,5-trimethoxybenzene (TMB) by cyclic voltammetry at treated gold electrode. The second part is relative to the results of its conversion into a high added value product 2,6-dimethoxy-1,4-benzoquinone (DMBQ) by electrolysis at lead dioxide anode. The used electrolyte which is a simulated solution of TMB in water-acetone mixture should be prepared using a preconcentrated TMB wastewater. The partial substitution of water by acetone permit to control the TMB solubility to avoid the electrochemical efficiency reduction by TMB transfer limitation. Moreover, the DMBQ desorption from the electrode surface by the effects of acetone and its displacement by TMB provides the slowdown of its degradation. The electrochemical DMBQ recovery increases with the enhancement of acetone volumic percentage and decreases by increasing the current density.

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Electrochemical oxidation of trans-3,4-dihydroxycinnamic acid at PbO2 electrodes: direct electrolysis and ozone mediated reactions compared

Cited by 116 publications

References 34 publications

Electrodeposited lead dioxide coatings

Electrodeposited lead dioxide coatings

Green processes for environmental application. Electrochemical ozone production

Depollution of 1,3,5-trimethoxybenzene through its electrochemical conversion into a high added value product 2,6-dimethoxy-1,4-benzoquinone

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