Boosting Oxygen Reduction through Microenvironment Modulation to Enhance Mass Transportation

Advanced Energy and Sustainability Research, Год журнала: 2023, Номер 4(12)

Опубликована: Окт. 17, 2023

Electroreduction of oxygen driven by renewable electricity holds significant promise for the sustainable production value‐added hydrogen peroxide (H 2 O ). While water is a desirable source protons and electrons this reaction, its low gas solubility often limits transportation molecules consequently leads to large concentration overpotential, resulting in unsatisfactory energy efficiencies. Herein, facile effective strategy promote 2e − reduction reaction (ORR) through microenvironment modulation presented. In work, it specifically aimed facilitate at interface, particularly high rates. To achieve this, hydrophobic polytetrafluoroethylene (PTFE) particles are introduced into catalyst layer containing amino‐group‐functionalized carbon nanotube (CNT‐NH ) as ORR H production. As result, PTFE‐modified CNT‐NH ‐based gas‐diffusion electrode (GDE) substantially improves activity. At 100 mA cm −2 , achieves cathodic efficiency 92%, 1.5 times higher than pristine GDE (63%). Detailed kinetic analysis reveals that enhanced performance indeed due induced persistent created layer, reducing overpotential during ORR.

Язык: Английский

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Higher-Valent Nio Catalyst with Enhanced Two-Electron Oxygen Reduction in Advanced Electro-Fenton System for Heavy-Duty Wastewater Treatment

Опубликована: Янв. 1, 2024

Язык: Английский

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Increasing Catalytic Efficiency of Cobalt Centers in Oxygen Reduction Reaction - Evidence from Cobalt with Salen Ligands Polymer Complex

Electrochimica Acta, Год журнала: 2024, Номер 508, С. 145217 - 145217

Опубликована: Окт. 11, 2024

Язык: Английский

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