20.500.12556/RUL-181479 A parallel-plate electrochemical microreactor for the continuous production of hydrogen peroxide research data underlying the article This study presents a comprehensive evaluation of a microfluidic electrochemical system for the controlled generation and detection of hydrogen peroxide (H$_2$O$_2$). The integrated microreactor with a three-electrode configuration in combination with optical sensors enabled real-time monitoring of dissolved oxygen and H$_2$O$_2$ concentrations during chronoamperometric operation. Glassy carbon (GC) electrodes exhibited high selectivity toward the two-electron oxygen reduction reaction (2e- ORR), a key requirement for efficient H$_2$O$_2$ electro- synthesis. Cyclic voltammetry (CV), rotating ring-disk electrode (RRDE) analyses and electrochemical testing in real system identified 0.4 V vs. RHE as the optimal working potential. Flow rate experiments revealed a decline in H$_2$O$_2$ production with increasing flow rates, consistent with electrical charge measurements and oxygen consumption data. A mathematical model, validated with experimental data, reliably predicted H$_2$O$_2$ outlet concentration as a function of flow rate (residence time). The model captured the interplay between mass transport and surface electrocatalytic reactions and enabled the identification of an optimal operating window (25–50 μL min-1), supporting model-based reaction optimization. Post-experiment surface characterization using SEM-EDS, XPS, and μ-FTIR revealed increased oxygen-containing functional groups on the GC working electrode, indicating surface oxidation that may enhance catalytic performance. Overall, this system offers a scalable, sustainable platform for on-demand H$_2$O$_2$ production, supporting cleaner, decentralized electro- chemical synthesis with reduced environmental impact and greater adaptability for modern industrial applications. electrosynthesis hydrogen peroxide two-electron oxygen reduction reaction carbon electrocatalysts electrochemical microreactor continuous flow microreactor true false false Angleški jezik Slovenski jezik Neznano 2026-04-08 23:04:30 2026-04-08 23:29:22 2026-04-09 04:44:12 0000-00-00 00:00:00 2026 0 0 Connected article/Povezan članek: Ivo Bardarov, Anders Ø. Tjell, Ema Gričar, Mark Starin, Pedro Farinazzo Bergamo Dias Martins, Miha Nosan, Torsten Mayr, Dušan Strmčnik, Igor Plazl, Boštjan Genorio. A parallel-plate electrochemical microreactor for the continuous production of hydrogen peroxide. Chemical engineering journal, vol. 525, 170301, 1 Dec. 2025, str. 1-11. https://doi.org/10.1016/j.cej.2025.170301. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 parallel_plate_electrochemical_microreactor_generation_1–2025.xlsx parallel_plate_electrochemical_microreactor_generation_1–2025.xlsx Parallel plate electrochemical microreactor generation 1 – 2025 1 D41EA96AE3C0373F7FF93CE7B7E6E9F3 1d8eac8301a20afa3b40cff812e756f9e5cf18726c4462e00978493cd518c474 5378faa7-3391-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=231990 Fakulteta za kemijo in kemijsko tehnologijo Meritve in testi 0 0 0