20.500.12556/DiRROS-29386 Investigation of Fe’s influence on turquoise hydrogen production enhanced by Ni nanoclusters with gamma alumina support One of the challenging aspects of implementing hydrogen is the cost and availability of hydrogen, e.g. green hydrogen is costly and inaccessible, whereas conventional grey hydrogen is associated with substantial CO2 emissions. An intermediate solution could be turquoise hydrogen, which promises substantially lower direct cost and CO2-imposed social cost. This work investigates nickel nanoclusters on iron co-catalyst system, supported by gamma alumina, for the catalytic degradation of methane. A novel synthesis approach is tested to examine the influence of Fe amount on reaction yields and outcomes. Varying amounts of Fe with and without Ni were tested at 700,800, and 900 °C in a batch-type reaction. Analysis of catalysts and outcomes was carried out; it was found that the use of co-catalysts on commercial gamma alumina pyrolysis yields hydrogen at 82% at lower reaction temperatures of 700 °C and 80% at900°C. Addition of Ni nanoclusters provide higher results than those of a single Fe catalyst. The synergistic effect of Ni-Fe catalysts exhibits improved efficiency, yielding a range of valuable nanofibrous carbon tested as pesticide sensors showing promise in extending life cycle of catalyst materials. iron-nickel nanoclusters clean energy hydrogen pyrolysis nanomaterials železo-nikljevi nanogrozdki čista energija vodik piroliza nanomateriali true false true Taylor & Francis Združeno kraljestvo Angleški jezik Slovenski jezik © 2026 The Author(s). Neznano 2026-05-14 13:06:06 2026-05-14 13:06:07 2026-05-15 03:47:50 0000-00-00 00:00:00 2026 0 0 Nasl. z nasl. zaslona; Soavtorici iz Slovenije: Izabela Čurković, Danjela Kuščer; Opis vira z dne 13. 5. 2026; Str. 1-17 Issue 1, [article no.] 2668782 Vol. 19 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2026-01-09 2026-04-29 2026-05-11 620.3 1751-7192 10.1080/17518253.2026.2668782 278057987 https://www.tandfonline.com/doi/epdf/10.1080/17518253.2026.2668782?needAccess=true 1 e9341647-4f84-11f1-8a5a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=44031 RAZ_Knoks_Ainars_2026.pdf RAZ_Knoks_Ainars_2026.pdf 1 2FE064328D62CE03F632DFBAB3FB1BC3 747caf843a048e0cdf34cdeac5f8f554a05ffba1a1e96a75214bb2c9e695551f 318687c0-4f85-11f1-8a5a-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=44032 Institut Jožef Stefan 0 0 0