20.500.12556/DiRROS-29492 Investigation of coked catalyst regeneration via non-thermal plasma treatment and its reuse for hydrogen production from methane pyrolysis As a low-carbon alternative, methane pyrolysis offers a viable approach to overcoming the emission challenges associated with traditional hydrogen generation. However, catalyst deactivation is one of the key challenges, mainly caused by high-temperature sintering and coke deposition that block active sites. This study investigates the application of non-thermal plasma (NTP) treatment for the regeneration of coked catalysts through in situ carbon removal and performance recovery. Carbon removal by NTP is proposed as a cleaner alternative to conventional regeneration methods. The influence of plasma treatment was evaluated under different plasma treatment configurations, including the use of an auxiliary magnet to direct plasma flux toward the targeted region, and variations in gas composition (H2/Ar and H2/O2). The plasma-treated catalyst was analyzed by SEM, EDS, XPS, and XRD techniques. Additionally, samples were evaluated for hydrogen production via methane pyrolysis. The results demonstrated measurable surface carbon removal, reaching approximately 38%. However, methane pyrolysis experiments revealed that this level of surface carbon removal was insufficient to achieve substantial catalytic activity recovery, indicating the need for further optimization. hydrogen production proizvodnja vodika true false true MDPI Švica Angleški jezik Slovenski jezik © 2026 by the authors. Neznano 2026-05-21 12:47:09 2026-05-21 12:47:09 2026-05-22 03:48:48 0000-00-00 00:00:00 2026 0 0 Nasl. z nasl. zaslona; Soavtorici iz Slovenije: Brigita Kmet, Danjela Kuščer; Opis vira z dne 20. 5. 2026; str. 1-17 iss. 10, [article no.] 1733 Vol. 31 May 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2026-03-16 2026-05-14 2026-05-19 54 1420-3049 10.3390/molecules31101733 278838531 https://www.mdpi.com/1420-3049/31/10/1733 1 6c831dc0-5502-11f1-8a5a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=44248 RAZ_Varnagiris_Sarūnas_2026.pdf RAZ_Varnagiris_Sarūnas_2026.pdf 1 0C7AB70FEA4DA33B46476749A561287A 729e721155d6889a8c5213342f8c6405cc71f012fbc816a8275abb52b7f11d94 f1b97691-5502-11f1-8a5a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=44249 Institut Jožef Stefan 0 0 0