Electrocatalytic performance of oxygen-activated carbon fibre felt anodes mediating degradation mechanism of acetaminophen in aqueous environments

Jakóbczyk, Paweł; Skowierzak, Grzegorz; Kaczmarzyk, Iwona; Nadolska, Małgorzata; Wcisło, Anna; Lota, Katarzyna; Bogdanowicz, Robert; Ossowski, Tadeusz; Rostkowski, Paweł; Lota, Grzegorz; Ryl, Jacek

doi:10.1016/j.chemosphere.2022.135381

Cited by 14 publications

(3 citation statements)

References 66 publications

(76 reference statements)

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“…Typical devices include plasma in a liquid and atmospheric-pressure plasma jets in contact with liquid. They are widely used in advanced oxidation processing [5][6][7][8][9], nanoparticle synthesis [10][11][12][13], plasma medicine and water treatment [14][15][16][17][18][19][20][21]. To ascertain physical and chemical processes occurring in plasma-liquid reactors, Liu et al investigated the plasma jet dynamics above the gas-liquid interface * Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

Estimation of total forces of jets on liquid interfaces using image processing methods

Guo,

et al. 2024

J. Phys. D: Appl. Phys.

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Optical imaging is a fundamental method for detecting plasma phenomena, such as plasma bubbles, plasma streamers, and self-organized plasma patterns. Therefore, data mining of images is crucial in plasma diagnostics. This work presents image processing methods for extracting substructures in plasma bubbles, streamers, and patterns. In our experiment, plasma-liquid interfaces between atmospheric pressure argon-plasma jets and NaCl solutions are quantitatively captured. After extracting accurate plasma-liquid interfaces, traditional analytic functions and machine learning approaches are used to fit curves of interfaces. Regression of machine learning method based on Gaussian process reveals many details of interfaces, but neural networks present smooth and accurate regressions. The gravitational and surface tension forces are calculated using experimental plasma-liquid interfaces. The plasma forces are estimated to be several tens of Pa. However, they increased to several hundred Pa around the inflection points of interfaces. This study extends the application of image processing to plasma diagnostics and provides target data of gas-liquid interfaces for numerical simulations.

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Section: Introductionmentioning

confidence: 99%

Estimation of total forces of jets on liquid interfaces using image processing methods

Guo,

et al. 2024

J. Phys. D: Appl. Phys.

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“…Unlike a metal substrate, carbon materials are economically and environmentally beneficial, more resource-intensive and can be removed thermally in the next, i.e. they are able to perform the role of templates [35][36][37][38][39]. This makes it possible to significantly increase the electrochemically active surface area of electrode materials, which has a positive effect on their functional features.…”

Section: Introductionmentioning

confidence: 99%

“…This makes it possible to significantly increase the electrochemically active surface area of electrode materials, which has a positive effect on their functional features. Paweł Jakobczyk et al [38] have shown that thermal and chemical modification of the carbon felt surface improves its catalytic properties in the acetaminophen degradation reaction. The authors of [26] declare the successful use of modified carbon felt as a cathode in the Fenton process for the removal of tetracycline.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the electrochemical active surface area for carbon felt and nanostructured Ni coatings as electrocatalysts for hydrogen evolution reaction

Dmitriev,

Tenevich

2023

Nanosystems: Phys. Chem. Math.

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This study is devoted to the evaluation of electrochemical active surface area (ECSA) for carbon felt used in various fields of electrochemical technology. For the evaluation, we used techniques based on Faraday's law, the Randles-Sevcik equation and the calculation of the electric double layer capacitance in the electrolyte with different pH value. The measurement results are consistent with each other and for neutral, acidic and alkaline medium, the ECSA value are 20 -30, 30 -40 and 50 -90 cm 2 per 1 cm 2 of geometric surface, respectively. Based on the results, the synthesis of nanostructured nickel coatings on carbon felt with prior electrochemical activation was performed. The pre-treatment in 1M KOH vs 1 M Na 2 SO 4 reduces the crystallite size from 26 to 15 nm and increases the ECSA from 133 to 700 cm 2 per 1 cm 2 of geometric surface. These changes cause an improvement in other electrocatalytic features for hydrogen evolution reaction. KEYWORDS carbon felt, electrochemical surface area, electrodeposition, voltammetry, double layer capacitance, Randles-Sevcik equation, nickel coating, hydrogen evolution reaction ACKNOWLEDGEMENTS The authors express their gratitude to the Engineering Center of the St. Petersburg State Institute of Technology for the prompt possibility of performing studies on a scanning electron microscope FOR CITATION Dmitriev D.S., Tenevich M.I. Evaluation of the electrochemical active surface area for carbon felt and nanostructured Ni coatings as electrocatalysts for hydrogen evolution reaction. Nanosystems: Phys.

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Hydrothermal deposition of urchin-like NiCo2O4 on carbon felt as performed flexible electrodes for supercapacitors

et al. 2023

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Electrocatalytic performance of oxygen-activated carbon fibre felt anodes mediating degradation mechanism of acetaminophen in aqueous environments

Cited by 14 publications

References 66 publications

Estimation of total forces of jets on liquid interfaces using image processing methods

Estimation of total forces of jets on liquid interfaces using image processing methods

Evaluation of the electrochemical active surface area for carbon felt and nanostructured Ni coatings as electrocatalysts for hydrogen evolution reaction

Hydrothermal deposition of urchin-like NiCo2O4 on carbon felt as performed flexible electrodes for supercapacitors

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