Electrochemical generation of ozone in a system with a solid polymer electrolyte

Pushkarev, Artem S.; Pushkareva, I. V.; Grigoriev, S.A.

doi:10.1134/s107042721607003x

Cited by 11 publications

(10 citation statements)

References 84 publications

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“…The use of this type of membrane limits the application in actual wastewater because of the blocking of the membrane cause by Ca 2+ and Mg 2+ and the slow down produced by the Na + ions that replace protons as the mobile species in the Nafion. This problem may be overcome by the development of membranes that can reject multiply charged cations Electrochemical generation of ozone in a system with a solid polymer electrolyte (2016) [43] Comparative between UV radiation, corona discharger and anodic oxidation of water Effect of current density on electrogeneration of ozone UV (low ozone concentration and high value of specific energy expenditure kW h kg -1 O3), CD (better concentration of ozone than UV and lower value of specific energy expenditure kW h kg -1 O3, mass transfer problems) Anodic oxidation (high ozone concentration, high value of specific energy expenditure kW h kg -1 O)…”

Section: Effect Of Temperature and Current Densitymentioning

confidence: 99%

“…This allows to obtain ozone with a very high quality. In addition, they can operate successfully with liquids of very low conductivity and, because they approach the concept of zero-gap cell [43], ohmic loses are minimized operating at rather low voltages [51,[53][54][55]. In these cells, the choice of the electrodic materials is even more important because they may allow the optimization of the production of ozone and prevent damages to the membrane [47,56].…”

Section: Equipment For the Electrolytic Production Of Ozonementioning

confidence: 99%

“…In this context, different studies support an increase in the ozone concentration when the electrolyte concentration increase. However, is important find the optimal concentration, because there is a conductivity from which the ozone concentration decreases due to increased anionic adsorption educe the ozone yield [34,43,72].…”

Section: Operation Conditions For the Electrochemical Production Of O...mentioning

confidence: 99%

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New insights about the electrochemical production of ozone

Rodríguez-Peña

Barrios

Llanos

et al. 2021

Current Opinion in Electrochemistry

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Section: Effect Of Temperature and Current Densitymentioning

confidence: 99%

Section: Equipment For the Electrolytic Production Of Ozonementioning

confidence: 99%

Section: Operation Conditions For the Electrochemical Production Of O...mentioning

confidence: 99%

See 1 more Smart Citation

New insights about the electrochemical production of ozone

Rodríguez-Peña

Barrios

Llanos

et al. 2021

Current Opinion in Electrochemistry

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“…There are various methods for nitrogen doping, which are used, for example, in the synthesis of graphene materials or in their post-processing. Recent studies showed that the method of nitrogenation in gas discharge plasma is an effective method (the plasma-forming gases are nitrogen or a nitrogen/argon mixture) [60].…”

Section: Hydrogenmentioning

confidence: 99%

Graphene and Graphene-Like Materials for Hydrogen Energy

et al. 2020

Self Cite

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The review is devoted to current and promising areas of application of graphene and materials based on it for generating environmentally friendly hydrogen energy. Analysis of the results of theoretical and experimental studies of hydrogen accumulation in graphene materials confirms the possibility of creating on their basis systems for reversible hydrogen storage, which combine high capacity, stability, and the possibility of rapid hydrogen evolution under conditions acceptable for practical use. Recent advances in the development of chemically and heat-resistant graphene-based membrane materials make it possible to create new gas separation membranes that provide high permeability and selectivity and are promising for hydrogen purification in processes of its production from natural gas. The characteristics of polymer membranes that are currently used in industry for the most part can be significantly improved with small additions of graphene materials. The use of graphene-like materials as a support of nanoparticles or as functional additives in the composition of the electrocatalytic layer in polymer electrolyte membrane fuel cells makes it possible to improve their characteristics and to increase the activity and stability of the electrocatalyst in the reaction of oxygen evolution.

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“…Although the solid polymer electrolyte (SPE) technology employing proton-exchange membrane has been developed to achieve a high EOP efficiency, ,, it still suffers from these intractable issues of the relatively low OER potential and the unfavorable gaseous ozone escaping (when O 3 gas is the target product instead of the ozone-dissolved water in the common SPE-based EOP , ), which hopefully provide a room for further improving the gaseous ozone productivity. According to the commonly accepted EOP mechanism, O 3 formation depends essentially on the intermediate reaction between the hydroxyl free radical-derived active atomic oxygen and the adsorbed oxygen molecule, while the later will competitively desorb into gaseous O 2 as an OER process. ,,− In theory, an increased level of adsorbed oxygen molecule will increase the reaction barrier to eq , and simultaneously benefit the ozone formation.…”

Section: Introductionmentioning

confidence: 99%

Capillary Effect-Enabled Water Electrolysis for Enhanced Electrochemical Ozone Production by Using Bulk Porous Electrode

Zhang

Lü

et al. 2017

J. Am. Chem. Soc.

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A significant overpotential necessary for the electrochemical oxygen evolution reaction (OER) is one of the most serious disadvantages in water electrolysis, which, on the contrary, gives the probability to electrochemically produce ozone alternative to the common corona discharge. To effectively suppress the competitive OER and improve gaseous ozone escaping, here we present a capillary effect-enabled electrolysis strategy by employing an unusual partial-submersed mode of anode composed of a β-PbO cuboids-loaded bulk porous Pb, and realize a much enhanced electrocatalytic gaseous ozone production in comparison to the cases of solid Pb counterpart and/or usual submersion operation. Detailed study reveals a capillary pressure-induced "molecular oxygen-locking effect" in the electrolyte fully filled in the porous structure of the electrode area above the electrolyte pool level, which unexpectedly leads to the production of unusual ·O intermediate. Distinctive from the traditional electrochemical ozone production (EOP) mechanism dependent on the essential reaction between the atomic oxygen and molecular oxygen, the ·O intermediate generation favors the EOP process in the special case where the capillary action is relevant for a porous bulk anode.

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Electrochemical generation of ozone in a system with a solid polymer electrolyte

Cited by 11 publications

References 84 publications

New insights about the electrochemical production of ozone

New insights about the electrochemical production of ozone

Graphene and Graphene-Like Materials for Hydrogen Energy

Capillary Effect-Enabled Water Electrolysis for Enhanced Electrochemical Ozone Production by Using Bulk Porous Electrode

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