13 research outputs found
Evaluation of peroxidative stress of cancer cells in vitro by real time quantification of volatile aldehydes in culture headspace
Rationale
Peroxidation of lipids in cellular membranes results in the release of volatile organic compounds (VOCs), including saturated aldehydes. The realβtime quantification of trace VOCs produced by cancer cells during peroxidative stress presents a new challenge to nonβinvasive clinical diagnostics, which as described here, we have met with some success.
Methods
A combination of selected ion flow tube mass spectrometry (SIFTβMS), a technique that allows rapid, reliable quantification of VOCs in humid air and liquid headspace, and electrochemistry to generate reactive oxygen species (ROS) in vitro has been used. Thus, VOCs present in the headspace of CALUβ1 cancer cell line cultures exposed to ROS have been monitored and quantified in real time using SIFTβMS.
Results
The CALUβ1 lung cancer cells were cultured in 3D collagen to mimic in vivo tissue. Realβtime SIFTβMS analyses focused on the volatile aldehydes: propanal, butanal, pentanal, hexanal, heptanal and malondialdehyde (propanedial), that are expected to be products of cellular membrane peroxidation. All six aldehydes were identified in the culture headspace, each reaching peak concentrations during the time of exposure to ROS and eventually reducing as the reactants were depleted in the culture. Pentanal and hexanal were the most abundant, reaching concentrations of a few hundred partsβperβbillion by volume, ppbv, in the culture headspace.
Conclusions
The results of these experiments demonstrate that peroxidation of cancer cells in vitro can be monitored and evaluated by direct realβtime analysis of the volatile aldehydes produced. The combination of adopted methodology potentially has value for the study of other types of VOCs that may be produced by cellular damage
Chemistry for Sustainable Development 15 (2007) 685-689 Electrochemical Oxidation Decomposition of Benzene by Intermediates
Abstract Indirect electrochemical oxidation of benzene by intermediates has been studied. The intermediates were generated in situ from Γ 2 , Γ 2 Γ, and Γ 2 Γ 2 with the use of anodes from platinum, lead dioxide, and ruthenium-titanium oxide anode in water solutions with various Γ°Γ. Schemes with in situ generated Γ 2 O 2 from Γ 2 and with Γ 2 O 2 adding to electrolyte have been implemented. It was found that hydroxylation of benzene to produce phenol with a gas diffusion cathode from commercial-grade carbon that generates Γ 2 Γ 2 from Γ 2 in situ is ineffective because of the cathode passivation. On Γ 2 Γ 2 addition into the electrolyte, oxidation of benzene occurred with mineralization to yield ΓΓ2 and Γ2O; the oxidation state could amount from 94.8 % (Pb/PbO 2 , ðà 2) to 63.5 % (Pt-anode, ðà 2.8, Γ Fe 2+ = 7.1 Γ 10 -6 mg/L). Efficiency of oxidation drops owing to the formation difficult-to-oxidize carboxylated complexes of iron
Redox-Mediator Oxidation of Aliphatic Alcohols to Carboxylic Acids on Nickel Hydroxide and Cobaltoxide Porous Hydrophobized Electrodes
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ ΡΠ΅Π΄ΠΎΠΊΡ-ΠΌΠ΅Π΄ΠΈΠ°ΡΠΎΡΠ½ΠΎΠ΅ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΠ΅ Π°Π»ΠΈΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΏΠΈΡΡΠΎΠ² Π΄ΠΎ ΠΊΠ°ΡΠ±ΠΎΠ½ΠΎΠ²ΡΡ
ΠΊΠΈΡΠ»ΠΎΡ Π½Π°
Π³ΠΈΠ΄ΡΠΎΡΠΎΠ±ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΠΎΠΊΡΠΈΠ΄Π½ΠΎ-Π½ΠΈΠΊΠ΅Π»Π΅Π²ΡΡ
(ΠΠΠ) ΠΈ ΠΎΠΊΡΠΈΠ΄Π½ΠΎ-ΠΊΠΎΠ±Π°Π»ΡΡΠΎΠ²ΡΡ
(ΠΠΠ) ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Π°Ρ
Π²
ΡΠ΅Π»ΠΎΡΠ½ΠΎΠΉ ΡΡΠ΅Π΄Π΅. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Ρ Π³ΠΈΠ΄ΡΠΎΡΠΎΠ±ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΡΠ΅ ΠΎΠΊΡΠΈΠ΄Π½ΠΎ-Π½ΠΈΠΊΠ΅Π»Π΅Π²ΡΠ΅ ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Ρ. ΠΠ·ΡΡΠ΅Π½Ρ
ΠΊΠΈΠ½Π΅ΡΠΈΠΊΠ° ΠΈ ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π½Π΅ΠΏΡΡΠΌΠΎΠ³ΠΎ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ ΠΈΠ·ΠΎΠ±ΡΡΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ, ΠΈΠ·ΠΎΠ°ΠΌΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ, Π³Π΅ΠΊΡΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ,
Π½ΠΎΠ½ΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ ΠΈ ΡΠ½Π΄Π΅ΡΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ ΡΠΏΠΈΡΡΠΎΠ² Π΄ΠΎ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠΈΡ
ΠΊΠ°ΡΠ±ΠΎΠ½ΠΎΠ²ΡΡ
ΠΊΠΈΡΠ»ΠΎΡ. ΠΡΠΎΠ²Π΅Π΄Π΅Π½Π½ΡΠ΅
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ Π³ΠΈΠ΄ΡΠΎΡΠΎΠ±ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΠΠΠ Π΄Π»Ρ ΡΠ΅Π΄ΠΎΠΊΡ-
ΠΌΠ΅Π΄ΠΈΠ°ΡΠΎΡΠ½ΠΎΠ³ΠΎ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ Π°Π»ΠΈΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΏΠΈΡΡΠΎΠ² Ρ Π΄Π»ΠΈΠ½ΠΎΠΉ ΡΠ³Π»Π΅ΡΠΎΠ΄Π½ΠΎΠΉ ΡΠ΅ΠΏΠΈ Π‘6 - Π‘9 Π² ΠΎΠ±Π»Π°ΡΡΠΈ
ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»ΠΎΠ² 0,7 -0,9 Π ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎ Π₯Π‘Π.Redox-mediator oxidation of aliphatic alcohols to carboxylic acids on nickel hydroxide (ONE) and
cobalt oxide (OCE) porous hydrophobized electrodes in alkaline medium was studied. A method of
producing porous hydrophobized nickel hydroxide electrodes developed. Kinetics and selectivity of the
indirect oxidation of isobutyl, isoamyl, hexyl , nonanoic and undecenol alcohols to the corresponding
carboxylic acids are studied. Studies have shown the efficiency of application of porous hydrophobized
oxide-nickel electrodes for redox-mediator oxidation of aliphatic alcohols with long carbon chain
C6 - C9 in the potential window 0.7 -0.9 V(vs. SCE)
Redox-Mediator Oxidation of Aliphatic Alcohols to Carboxylic Acids on Nickel Hydroxide and Cobaltoxide Porous Hydrophobized Electrodes
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ ΡΠ΅Π΄ΠΎΠΊΡ-ΠΌΠ΅Π΄ΠΈΠ°ΡΠΎΡΠ½ΠΎΠ΅ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΠ΅ Π°Π»ΠΈΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΏΠΈΡΡΠΎΠ² Π΄ΠΎ ΠΊΠ°ΡΠ±ΠΎΠ½ΠΎΠ²ΡΡ
ΠΊΠΈΡΠ»ΠΎΡ Π½Π°
Π³ΠΈΠ΄ΡΠΎΡΠΎΠ±ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΠΎΠΊΡΠΈΠ΄Π½ΠΎ-Π½ΠΈΠΊΠ΅Π»Π΅Π²ΡΡ
(ΠΠΠ) ΠΈ ΠΎΠΊΡΠΈΠ΄Π½ΠΎ-ΠΊΠΎΠ±Π°Π»ΡΡΠΎΠ²ΡΡ
(ΠΠΠ) ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Π°Ρ
Π²
ΡΠ΅Π»ΠΎΡΠ½ΠΎΠΉ ΡΡΠ΅Π΄Π΅. Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Ρ Π³ΠΈΠ΄ΡΠΎΡΠΎΠ±ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΡΠ΅ ΠΎΠΊΡΠΈΠ΄Π½ΠΎ-Π½ΠΈΠΊΠ΅Π»Π΅Π²ΡΠ΅ ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Ρ. ΠΠ·ΡΡΠ΅Π½Ρ
ΠΊΠΈΠ½Π΅ΡΠΈΠΊΠ° ΠΈ ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π½Π΅ΠΏΡΡΠΌΠΎΠ³ΠΎ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ ΠΈΠ·ΠΎΠ±ΡΡΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ, ΠΈΠ·ΠΎΠ°ΠΌΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ, Π³Π΅ΠΊΡΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ,
Π½ΠΎΠ½ΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ ΠΈ ΡΠ½Π΄Π΅ΡΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ ΡΠΏΠΈΡΡΠΎΠ² Π΄ΠΎ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠΈΡ
ΠΊΠ°ΡΠ±ΠΎΠ½ΠΎΠ²ΡΡ
ΠΊΠΈΡΠ»ΠΎΡ. ΠΡΠΎΠ²Π΅Π΄Π΅Π½Π½ΡΠ΅
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ Π³ΠΈΠ΄ΡΠΎΡΠΎΠ±ΠΈΠ·ΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΠΠΠ Π΄Π»Ρ ΡΠ΅Π΄ΠΎΠΊΡ-
ΠΌΠ΅Π΄ΠΈΠ°ΡΠΎΡΠ½ΠΎΠ³ΠΎ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ Π°Π»ΠΈΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΏΠΈΡΡΠΎΠ² Ρ Π΄Π»ΠΈΠ½ΠΎΠΉ ΡΠ³Π»Π΅ΡΠΎΠ΄Π½ΠΎΠΉ ΡΠ΅ΠΏΠΈ Π‘6 - Π‘9 Π² ΠΎΠ±Π»Π°ΡΡΠΈ
ΠΏΠΎΡΠ΅Π½ΡΠΈΠ°Π»ΠΎΠ² 0,7 -0,9 Π ΠΎΡΠ½ΠΎΡΠΈΡΠ΅Π»ΡΠ½ΠΎ Π₯Π‘Π.Redox-mediator oxidation of aliphatic alcohols to carboxylic acids on nickel hydroxide (ONE) and
cobalt oxide (OCE) porous hydrophobized electrodes in alkaline medium was studied. A method of
producing porous hydrophobized nickel hydroxide electrodes developed. Kinetics and selectivity of the
indirect oxidation of isobutyl, isoamyl, hexyl , nonanoic and undecenol alcohols to the corresponding
carboxylic acids are studied. Studies have shown the efficiency of application of porous hydrophobized
oxide-nickel electrodes for redox-mediator oxidation of aliphatic alcohols with long carbon chain
C6 - C9 in the potential window 0.7 -0.9 V(vs. SCE)
The Oxidation Glucose to Gluconic Acid by Use of Redox-Mediator - the Nickel Oxides Hydroxide Coating at the Anode Surface in Basic Solutions
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ ΡΠ΅Π΄ΠΎΠΊΡ-ΠΌΠ΅Π΄ΠΈΠ°ΡΠΎΡΠ½ΠΎΠ΅ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΠ΅ Π³Π»ΡΠΊΠΎΠ·Ρ Π΄ΠΎ Π³Π»ΡΠΊΠΎΠ½ΠΎΠ²ΠΎΠΉ ΠΊΠΈΡΠ»ΠΎΡΡ Π½Π° Π°Π½ΠΎΠ΄Π°Ρ
Ρ
Π½Π°Π½Π΅ΡΡΠ½Π½ΡΠΌΠΈ Π²ΡΡΡΠΈΠΌΠΈ ΠΎΠΊΡΠΈΠ΄Π°ΠΌΠΈ Π½ΠΈΠΊΠ΅Π»Ρ Π² ΡΠ΅Π»ΠΎΡΠ½ΠΎΠΉ ΡΡΠ΅Π΄Π΅, Ρ in situ Π³Π΅Π½Π΅ΡΠΈΡΠΎΠ²Π°Π½Π½ΡΠΌΠΈ Π°ΠΊΡΠΈΠ²Π½ΡΠΌΠΈ
ΡΠΎΡΠΌΠ°ΠΌΠΈ ΠΊΠΈΡΠ»ΠΎΡΠΎΠ΄Π° (ΠΠ€Π). Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Ρ ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Ρ Π΄Π»Ρ Π½Π°Π½Π΅ΡΠ΅Π½ΠΈΡ Π²ΡΡΡΠΈΡ
ΠΎΠΊΡΠΈΠ΄ΠΎΠ² Π½ΠΈΠΊΠ΅Π»Ρ Ρ
ΠΏΠΎΡΠΈΡΡΠΎΠΉ ΠΌΠ°ΡΡΠΈΡΠ΅ΠΉ, ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΡΡΠ΅ΠΉ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ½ΡΠΉ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π» (ΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠΈΠΉ ΡΠ³Π»Π΅ΡΠΎΠ΄ ΠΈ Π€Π-
4Π). ΠΠ·ΡΡΠ΅Π½ΠΎ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΠΏΠ»ΠΎΡΠ½ΠΎΡΡΠΈ ΡΠΎΠΊΠ°, ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ, ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ ΡΠ΅Π°Π³Π΅Π½ΡΠ°, ΡΡ
Π΅ΠΌΡ Π²Π²Π΅Π΄Π΅Π½ΠΈΡ
ΠΠ€Π Π½Π° ΠΊΠΈΠ½Π΅ΡΠΈΠΊΡ ΠΈ ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π½Π΅ΠΏΡΡΠΌΠΎΠ³ΠΎ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ Π³Π»ΡΠΊΠΎΠ·Ρ Π΄ΠΎ Π³Π»ΡΠΊΠΎΠ½ΠΎΠ²ΠΎΠΉ ΠΊΠΈΡΠ»ΠΎΡΡ.
ΠΡΠΎΠ²Π΅Π΄Π΅Π½Π½ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ, ΡΡΠΎ Π³Π»ΡΠΊΠΎΠ·Π° ΠΈ ΠΏΡΠΎΠ΄ΡΠΊΡΡ Π΅Π΅ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ Π±Π»ΠΎΠΊΠΈΡΡΡΡ
Π°ΠΊΡΠΈΠ²Π½ΡΠ΅ ΡΠ΅Π½ΡΡΡ Π½Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Π°, ΠΎΡΠ²Π΅ΡΠ°ΡΡΠΈΠ΅ Π·Π° ΡΠ΅Π³Π΅Π½Π΅ΡΠ°ΡΠΈΡ Π²ΡΡΡΠΈΡ
ΠΎΠΊΡΠΈΠ΄ΠΎΠ²
Π½ΠΈΠΊΠ΅Π»Ρ, ΠΈ ΡΠ½ΠΈΠΆΠ°ΡΡ ΡΠ»Π΅ΠΊΡΡΠΎΡ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΡΡ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Π°. ΠΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ΅ Π²Π²Π΅Π΄Π΅Π½ΠΈΠ΅
Π²ΡΡΠΎΠΊΠΎΡΠ΅Π°ΠΊΡΠΈΠΎΠ½Π½ΡΡ
ΠΠ€Π ΠΏΡΡΠ΅ΠΌ Π΄ΠΎΠ±Π°Π²Π»Π΅Π½ΠΈΡ ΠΏΠ΅ΡΠΎΠΊΡΠΈΠ΄Π° Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π° Π² ΠΎΠ±ΡΡΠΌ ΡΠ»Π΅ΠΊΡΡΠΎΠ»ΠΈΡΠ°
ΡΠΏΠΎΡΠΎΠ±ΡΡΠ²ΡΠ΅Ρ Π±ΠΎΠ»Π΅Π΅ Π³Π»ΡΠ±ΠΎΠΊΠΎΠΌΡ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ ΠΏΡΠΎΠΌΠ΅ΠΆΡΡΠΎΡΠ½ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ², ΠΈ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ
ΠΌΠΈΠ½Π΅ΡΠ°Π»ΠΈΠ·Π°ΡΠΈΠΈ Π³Π»ΡΠΊΠΎΠ·Ρ Π΄ΠΎ Π΄ΠΈΠΎΠΊΡΠΈΠ΄Π° ΡΠ³Π»Π΅ΡΠΎΠ΄Π° ΠΈ Π²ΠΎΠ΄Ρ. Π ΡΡ
Π΅ΠΌΠ΅ Ρ ΠΊΠ°ΡΠΎΠ΄Π½ΡΠΌ Π²ΠΎΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΠ΅ΠΌ
ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΠΊΠΈΡΠ»ΠΎΡΠΎΠ΄Π° Π΄ΠΎ ΠΏΠ΅ΡΠΎΠΊΡΠΈΠ΄Π° Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π° ΠΈ ΡΠ΅Π³Π΅Π½Π΅ΡΠ°ΡΠΈΠ΅ΠΉ NiOOH Π½Π° Π°Π½ΠΎΠ΄Π΅, ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΠ΅
Π³Π»ΡΠΊΠΎΠ·Ρ ΠΏΡΠΎΡΠ΅ΠΊΠ°Π΅Ρ Ρ ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡΡ ΡΠΎΠΊΠ° 28,7 % Π½Π° ΠΏΡΠΎΡΠ΅ΡΡ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ Π³Π»ΡΠΊΠΎΠ½ΠΎΠ²ΠΎΠΉ
ΠΊΠΈΡΠ»ΠΎΡΡ.The oxidation of glucose to gluconic acid on anodes with the redox- mediators system deposited of the
higher nickel oxides in an alkaline medium, to use in situ generated active forms of oxygen has been
investigated. Electrodes are designed for the depositing of higher nickel oxide at the porous matrix,
which represents the composite material (carbon black and teflon). The effect of current density,
temperature, reagent concentration, the scheme of the introduction of active form of oxygen on the
kinetics and the selectivity of indirect oxidation of glucose to gluconic acid has been investigated.
The studies have shown that active sites on the electrode surface, responsible for the regeneration
of the higher oxides of nickel are blocked by glucose and its oxidation products, and it is to reduce
the electrochemical activity of the electrode. Additional introduction of active forms of oxygen by the
addition of hydrogen peroxide in the electrolyte promotes deeper oxidation of intermediate products,
and leads to the mineralization of glucose to carbon dioxide and water. In the scheme with the cathodic
reduction of oxygen to hydrogen peroxide and regeneration of NiOOH at the anode, the oxidation of
glucose proceeds with the current yield is 28.7 % for the production of gluconic acid
The Oxidation Glucose to Gluconic Acid by Use of Redox-Mediator - the Nickel Oxides Hydroxide Coating at the Anode Surface in Basic Solutions
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ ΡΠ΅Π΄ΠΎΠΊΡ-ΠΌΠ΅Π΄ΠΈΠ°ΡΠΎΡΠ½ΠΎΠ΅ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΠ΅ Π³Π»ΡΠΊΠΎΠ·Ρ Π΄ΠΎ Π³Π»ΡΠΊΠΎΠ½ΠΎΠ²ΠΎΠΉ ΠΊΠΈΡΠ»ΠΎΡΡ Π½Π° Π°Π½ΠΎΠ΄Π°Ρ
Ρ
Π½Π°Π½Π΅ΡΡΠ½Π½ΡΠΌΠΈ Π²ΡΡΡΠΈΠΌΠΈ ΠΎΠΊΡΠΈΠ΄Π°ΠΌΠΈ Π½ΠΈΠΊΠ΅Π»Ρ Π² ΡΠ΅Π»ΠΎΡΠ½ΠΎΠΉ ΡΡΠ΅Π΄Π΅, Ρ in situ Π³Π΅Π½Π΅ΡΠΈΡΠΎΠ²Π°Π½Π½ΡΠΌΠΈ Π°ΠΊΡΠΈΠ²Π½ΡΠΌΠΈ
ΡΠΎΡΠΌΠ°ΠΌΠΈ ΠΊΠΈΡΠ»ΠΎΡΠΎΠ΄Π° (ΠΠ€Π). Π Π°Π·ΡΠ°Π±ΠΎΡΠ°Π½Ρ ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Ρ Π΄Π»Ρ Π½Π°Π½Π΅ΡΠ΅Π½ΠΈΡ Π²ΡΡΡΠΈΡ
ΠΎΠΊΡΠΈΠ΄ΠΎΠ² Π½ΠΈΠΊΠ΅Π»Ρ Ρ
ΠΏΠΎΡΠΈΡΡΠΎΠΉ ΠΌΠ°ΡΡΠΈΡΠ΅ΠΉ, ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»ΡΡΡΠ΅ΠΉ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ½ΡΠΉ ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π» (ΡΠ΅Ρ
Π½ΠΈΡΠ΅ΡΠΊΠΈΠΉ ΡΠ³Π»Π΅ΡΠΎΠ΄ ΠΈ Π€Π-
4Π). ΠΠ·ΡΡΠ΅Π½ΠΎ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΠΏΠ»ΠΎΡΠ½ΠΎΡΡΠΈ ΡΠΎΠΊΠ°, ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡΡ, ΠΊΠΎΠ½ΡΠ΅Π½ΡΡΠ°ΡΠΈΠΈ ΡΠ΅Π°Π³Π΅Π½ΡΠ°, ΡΡ
Π΅ΠΌΡ Π²Π²Π΅Π΄Π΅Π½ΠΈΡ
ΠΠ€Π Π½Π° ΠΊΠΈΠ½Π΅ΡΠΈΠΊΡ ΠΈ ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ Π½Π΅ΠΏΡΡΠΌΠΎΠ³ΠΎ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ Π³Π»ΡΠΊΠΎΠ·Ρ Π΄ΠΎ Π³Π»ΡΠΊΠΎΠ½ΠΎΠ²ΠΎΠΉ ΠΊΠΈΡΠ»ΠΎΡΡ.
ΠΡΠΎΠ²Π΅Π΄Π΅Π½Π½ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ, ΡΡΠΎ Π³Π»ΡΠΊΠΎΠ·Π° ΠΈ ΠΏΡΠΎΠ΄ΡΠΊΡΡ Π΅Π΅ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ Π±Π»ΠΎΠΊΠΈΡΡΡΡ
Π°ΠΊΡΠΈΠ²Π½ΡΠ΅ ΡΠ΅Π½ΡΡΡ Π½Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Π°, ΠΎΡΠ²Π΅ΡΠ°ΡΡΠΈΠ΅ Π·Π° ΡΠ΅Π³Π΅Π½Π΅ΡΠ°ΡΠΈΡ Π²ΡΡΡΠΈΡ
ΠΎΠΊΡΠΈΠ΄ΠΎΠ²
Π½ΠΈΠΊΠ΅Π»Ρ, ΠΈ ΡΠ½ΠΈΠΆΠ°ΡΡ ΡΠ»Π΅ΠΊΡΡΠΎΡ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΡΡ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Π°. ΠΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ΅ Π²Π²Π΅Π΄Π΅Π½ΠΈΠ΅
Π²ΡΡΠΎΠΊΠΎΡΠ΅Π°ΠΊΡΠΈΠΎΠ½Π½ΡΡ
ΠΠ€Π ΠΏΡΡΠ΅ΠΌ Π΄ΠΎΠ±Π°Π²Π»Π΅Π½ΠΈΡ ΠΏΠ΅ΡΠΎΠΊΡΠΈΠ΄Π° Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π° Π² ΠΎΠ±ΡΡΠΌ ΡΠ»Π΅ΠΊΡΡΠΎΠ»ΠΈΡΠ°
ΡΠΏΠΎΡΠΎΠ±ΡΡΠ²ΡΠ΅Ρ Π±ΠΎΠ»Π΅Π΅ Π³Π»ΡΠ±ΠΎΠΊΠΎΠΌΡ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ ΠΏΡΠΎΠΌΠ΅ΠΆΡΡΠΎΡΠ½ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ², ΠΈ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ
ΠΌΠΈΠ½Π΅ΡΠ°Π»ΠΈΠ·Π°ΡΠΈΠΈ Π³Π»ΡΠΊΠΎΠ·Ρ Π΄ΠΎ Π΄ΠΈΠΎΠΊΡΠΈΠ΄Π° ΡΠ³Π»Π΅ΡΠΎΠ΄Π° ΠΈ Π²ΠΎΠ΄Ρ. Π ΡΡ
Π΅ΠΌΠ΅ Ρ ΠΊΠ°ΡΠΎΠ΄Π½ΡΠΌ Π²ΠΎΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΠ΅ΠΌ
ΠΌΠΎΠ»Π΅ΠΊΡΠ»ΡΡΠ½ΠΎΠ³ΠΎ ΠΊΠΈΡΠ»ΠΎΡΠΎΠ΄Π° Π΄ΠΎ ΠΏΠ΅ΡΠΎΠΊΡΠΈΠ΄Π° Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π° ΠΈ ΡΠ΅Π³Π΅Π½Π΅ΡΠ°ΡΠΈΠ΅ΠΉ NiOOH Π½Π° Π°Π½ΠΎΠ΄Π΅, ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΠ΅
Π³Π»ΡΠΊΠΎΠ·Ρ ΠΏΡΠΎΡΠ΅ΠΊΠ°Π΅Ρ Ρ ΡΠ΅Π»Π΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡΡ ΡΠΎΠΊΠ° 28,7 % Π½Π° ΠΏΡΠΎΡΠ΅ΡΡ ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ Π³Π»ΡΠΊΠΎΠ½ΠΎΠ²ΠΎΠΉ
ΠΊΠΈΡΠ»ΠΎΡΡ.The oxidation of glucose to gluconic acid on anodes with the redox- mediators system deposited of the
higher nickel oxides in an alkaline medium, to use in situ generated active forms of oxygen has been
investigated. Electrodes are designed for the depositing of higher nickel oxide at the porous matrix,
which represents the composite material (carbon black and teflon). The effect of current density,
temperature, reagent concentration, the scheme of the introduction of active form of oxygen on the
kinetics and the selectivity of indirect oxidation of glucose to gluconic acid has been investigated.
The studies have shown that active sites on the electrode surface, responsible for the regeneration
of the higher oxides of nickel are blocked by glucose and its oxidation products, and it is to reduce
the electrochemical activity of the electrode. Additional introduction of active forms of oxygen by the
addition of hydrogen peroxide in the electrolyte promotes deeper oxidation of intermediate products,
and leads to the mineralization of glucose to carbon dioxide and water. In the scheme with the cathodic
reduction of oxygen to hydrogen peroxide and regeneration of NiOOH at the anode, the oxidation of
glucose proceeds with the current yield is 28.7 % for the production of gluconic acid
The Electrocatalytic Oxidation of Phenol in Alkaline Electrolyte by Anodes Coated with a Layer of RuO2 and TiO2 (DSA) with Participation of Active forms of Oxygen in situ Generated from Hydrogen Peroxide and Molecular Oxygen
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ ΡΠ»Π΅ΠΊΡΡΠΎΠΊΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΠ΅ ΡΠ΅Π½ΠΎΠ»Π° Π² ΡΠ΅Π»ΠΎΡΠ½ΠΎΠΌ ΡΠ»Π΅ΠΊΡΡΠΎΠ»ΠΈΡΠ΅ Π½Π°
ΠΎΠΊΡΠΈΠ΄Π½ΠΎ-ΡΡΡΠ΅Π½ΠΈΠ΅Π²ΠΎ-ΡΠΈΡΠ°Π½ΠΎΠ²ΠΎΠΌ Π°Π½ΠΎΠ΄Π΅ (ΠΠ Π’Π°) Ρ ΡΡΠ°ΡΡΠΈΠ΅ΠΌ Π°ΠΊΡΠΈΠ²Π½ΡΡ
ΡΠΎΡΠΌ ΠΊΠΈΡΠ»ΠΎΡΠΎΠ΄Π° (ΠΠ€Π).
Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ Ρ Π΄ΠΎΠ±Π°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ ΠΠ€Π ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ ΡΠ΅Π½ΠΎΠ»Π° Π²ΠΎΠ·ΡΠ°ΡΡΠ°Π΅Ρ
Ρ 87 Π΄ΠΎ 95-96 %. ΠΠ° ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΠΈ Π΄Π°Π½Π½ΡΡ
Π£Π€-ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΠΈ ΠΈ Π²ΠΎΠ»ΡΡ-Π°ΠΌΠΏΠ΅ΡΠΎΠΌΠ΅ΡΡΠΈΠΈ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ,
ΡΡΠΎ ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠ΅ ΠΠ€Π Π² ΡΠ°ΡΡΠ²ΠΎΡΠ΅ ΡΠΏΠΎΡΠΎΠ±ΡΡΠ²ΡΠ΅Ρ ΠΏΠΎΠ΄Π°Π²Π»Π΅Π½ΠΈΡ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ²
ΠΎΡΠΌΠΎΠ»Π΅Π½ΠΈΡ ΡΠ΅Π½ΠΎΠ»Π°, Π°Π΄ΡΠΎΡΠ±ΠΈΡΡΡΡΠΈΡ
ΡΡ Π½Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Π°, ΠΏΡΠΈΠ²ΠΎΠ΄ΡΡΠΈΡ
ΠΊ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΡ
ΡΠ»Π΅ΠΊΡΡΠΎΠΊΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ Π°Π½ΠΎΠ΄Π°Electrocatalytic oxidation of phenol in alkaline electrolyte by by anodes coated with a layer of RuO2
and TiO2 (DSA) with participation of the active forms of oxygen is investigated. It is established that
with AFK addition efficiency of process of oxidation of phenol increases with 87 to 95-96 %. On the
basis of given to UF-spectroscopy and voltammetric studies presence of the active forms of oxygen in
solution promotes suppression of process of formation of products of a polymeric ο¬lm that blocks the
surface of the electrode and decreases its activity it is establishe
Indirect Electrocatalytic Oxidation of Aliphatic Alcohols on the Nickel oxide Hydroxide Electrode Using in situ-Electrogenerated Active Oxygen Species
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ Π½Π΅ΠΏΡΡΠΌΠΎΠ΅ ΡΠ»Π΅ΠΊΡΡΠΎΠΊΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΠ΅ Π°Π»ΠΈΡΠ°ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΏΠΈΡΡΠΎΠ² Ρ
ΡΠ°Π·Π»ΠΈΡΠ½ΠΎΠΉ Π΄Π»ΠΈΠ½ΠΎΠΉ ΡΠ³Π»Π΅Π²ΠΎΠ΄ΠΎΡΠΎΠ΄Π½ΠΎΠΉ ΡΠ΅ΠΏΠΈ (Π±ΡΡΠ°Π½ΠΎΠ»-1, Π½ΠΎΠ½Π°Π½ΠΎΠ»-1, Π΄Π΅ΠΊΠ°Π½ΠΎΠ»-1) Π½Π° ΠΎΠΊΡΠΈΠ΄Π½ΠΎ-Π½ΠΈΠΊΠ΅Π»Π΅Π²ΠΎΠΌ
ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Π΅ Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ Π°ΠΊΡΠΈΠ²Π½ΡΡ
ΡΠΎΡΠΌ ΠΊΠΈΡΠ»ΠΎΡΠΎΠ΄Π°, in situ Π³Π΅Π½Π΅ΡΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΠΈΠ· Π2, Π2Π2
ΠΈ Π2Π. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΡΠ°Π·Π»ΠΈΡΠ½ΡΡ
ΡΠ°ΠΊΡΠΎΡΠΎΠ² Π½Π° ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΠΏΡΠΎΡΠ΅ΡΡΠ° Π½Π΅ΠΏΡΡΠΌΠΎΠ³ΠΎ
ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ ΡΠΏΠΈΡΡΠΎΠ² Π΄ΠΎ ΡΠ΅Π»Π΅Π²ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² β ΠΊΠ°ΡΠ±ΠΎΠ½ΠΎΠ²ΡΡ
ΠΊΠΈΡΠ»ΠΎΡ: ΠΏΠ»ΠΎΡΠ½ΠΎΡΡΠΈ ΡΠΎΠΊΠ°, ΠΊΠΎΠ»ΠΈΡΠ΅ΡΡΠ²Π°
ΠΏΡΠΎΠΏΡΡΠ΅Π½Π½ΠΎΠ³ΠΎ ΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΡΠ²Π°, ΡΠΏΠΎΡΠΎΠ±Π° Π³Π΅Π½Π΅ΡΠ°ΡΠΈΠΈ Π°ΠΊΡΠΈΠ²Π½ΡΡ
ΡΠΎΡΠΌ ΠΊΠΈΡΠ»ΠΎΡΠΎΠ΄Π°. Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ,
ΡΡΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΡ
Π΅ΠΌΡ ΠΏΠ°ΡΠ½ΠΎΠ³ΠΎ ΡΠ»Π΅ΠΊΡΡΠΎΠ»ΠΈΠ·Π° Ρ ΠΎΠ΄Π½ΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎΠΉ Π³Π΅Π½Π΅ΡΠ°ΡΠΈΠ΅ΠΉ Π½Π° Π°Π½ΠΎΠ΄Π΅ ΠΈ
ΠΊΠ°ΡΠΎΠ΄Π΅ ΡΠ΅Π°Π³Π΅Π½ΡΠ°-ΠΎΠΊΠΈΡΠ»ΠΈΡΠ΅Π»Ρ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠ²Π΅Π»ΠΈΡΠΈΠ²Π°Π΅Ρ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ
ΡΠΏΠΈΡΡΠΎΠ² Π΄ΠΎ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²ΡΡΡΠΈΡ
ΠΊΠΈΡΠ»ΠΎΡ. ΠΡΡ
ΠΎΠ΄ ΠΏΠΎ ΡΠΎΠΊΡ ΡΠ΅Π»Π΅Π²ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² ΡΠΎΡΡΠ°Π²ΠΈΠ»: Π΄Π»Ρ
ΠΌΠ°ΡΠ»ΡΠ½ΠΎΠΉ ΠΊΠΈΡΠ»ΠΎΡΡ 167,5 %, ΠΏΠ΅Π»Π°ΡΠ³ΠΎΠ½ΠΎΠ²ΠΎΠΉ β 83,8 % ΠΈ ΠΊΠ°ΠΏΡΠΈΠ½ΠΎΠ²ΠΎΠΉ β 63,6 %. ΠΠΎΠ»ΡΡΠ΅Π½Π½ΡΠ΅ Π²ΡΡ
ΠΎΠ΄Ρ
ΡΠ΅Π»Π΅Π²ΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ² Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ Π²ΡΡΠ΅, ΡΠ΅ΠΌ ΠΏΡΠΈ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠΈ ΡΡ
Π΅ΠΌΡ Π°Π½ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ Π±Π΅Π·
Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠΉ Π³Π΅Π½Π΅ΡΠ°ΡΠΈΠΈ Π°ΠΊΡΠΈΠ²Π½ΡΡ
ΡΠΎΡΠΌ ΠΊΠΈΡΠ»ΠΎΡΠΎΠ΄Π°Indirect electrocatalitical oxidation of various aliphatic alcohols (butanol-1, nonanol-1, and
decanol-1) on the nickel oxide hydroxide electrode by in situ-electrogenerated active oxygen species
has been investigated. The research studies the influence of the operative parameters (such as a
current density, a quantity of passed electricity and the active oxygen forms generation schemes)
on the oxidation process efficiency. It has been shown that using the paired electrolysis scheme
significantly increases the efficiency of alcohol oxidation process to corresponding carboxylic acid.
The current efficiency of target products is follows: butyric acid 167.5 %, pelargonic acid β 83.8 %
and cupric acid β 63.6 %. These results are significantly higher than using oxidation scheme without
active oxygen spesies generatio
The Electrocatalytic Oxidation of Phenol in Alkaline Electrolyte by Anodes Coated with a Layer of RuO2 and TiO2 (DSA) with Participation of Active forms of Oxygen in situ Generated from Hydrogen Peroxide and Molecular Oxygen
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΎ ΡΠ»Π΅ΠΊΡΡΠΎΠΊΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΠ΅ ΡΠ΅Π½ΠΎΠ»Π° Π² ΡΠ΅Π»ΠΎΡΠ½ΠΎΠΌ ΡΠ»Π΅ΠΊΡΡΠΎΠ»ΠΈΡΠ΅ Π½Π°
ΠΎΠΊΡΠΈΠ΄Π½ΠΎ-ΡΡΡΠ΅Π½ΠΈΠ΅Π²ΠΎ-ΡΠΈΡΠ°Π½ΠΎΠ²ΠΎΠΌ Π°Π½ΠΎΠ΄Π΅ (ΠΠ Π’Π°) Ρ ΡΡΠ°ΡΡΠΈΠ΅ΠΌ Π°ΠΊΡΠΈΠ²Π½ΡΡ
ΡΠΎΡΠΌ ΠΊΠΈΡΠ»ΠΎΡΠΎΠ΄Π° (ΠΠ€Π).
Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ Ρ Π΄ΠΎΠ±Π°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ ΠΠ€Π ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΎΠΊΠΈΡΠ»Π΅Π½ΠΈΡ ΡΠ΅Π½ΠΎΠ»Π° Π²ΠΎΠ·ΡΠ°ΡΡΠ°Π΅Ρ
Ρ 87 Π΄ΠΎ 95-96 %. ΠΠ° ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΠΈ Π΄Π°Π½Π½ΡΡ
Π£Π€-ΡΠΏΠ΅ΠΊΡΡΠΎΡΠΊΠΎΠΏΠΈΠΈ ΠΈ Π²ΠΎΠ»ΡΡ-Π°ΠΌΠΏΠ΅ΡΠΎΠΌΠ΅ΡΡΠΈΠΈ ΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ,
ΡΡΠΎ ΠΏΡΠΈΡΡΡΡΡΠ²ΠΈΠ΅ ΠΠ€Π Π² ΡΠ°ΡΡΠ²ΠΎΡΠ΅ ΡΠΏΠΎΡΠΎΠ±ΡΡΠ²ΡΠ΅Ρ ΠΏΠΎΠ΄Π°Π²Π»Π΅Π½ΠΈΡ ΠΏΡΠΎΡΠ΅ΡΡΠ° ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΎΠ΄ΡΠΊΡΠΎΠ²
ΠΎΡΠΌΠΎΠ»Π΅Π½ΠΈΡ ΡΠ΅Π½ΠΎΠ»Π°, Π°Π΄ΡΠΎΡΠ±ΠΈΡΡΡΡΠΈΡ
ΡΡ Π½Π° ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ ΡΠ»Π΅ΠΊΡΡΠΎΠ΄Π°, ΠΏΡΠΈΠ²ΠΎΠ΄ΡΡΠΈΡ
ΠΊ ΡΠ½ΠΈΠΆΠ΅Π½ΠΈΡ
ΡΠ»Π΅ΠΊΡΡΠΎΠΊΠ°ΡΠ°Π»ΠΈΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ Π°Π½ΠΎΠ΄Π°Electrocatalytic oxidation of phenol in alkaline electrolyte by by anodes coated with a layer of RuO2
and TiO2 (DSA) with participation of the active forms of oxygen is investigated. It is established that
with AFK addition efficiency of process of oxidation of phenol increases with 87 to 95-96 %. On the
basis of given to UF-spectroscopy and voltammetric studies presence of the active forms of oxygen in
solution promotes suppression of process of formation of products of a polymeric ο¬lm that blocks the
surface of the electrode and decreases its activity it is establishe