Akbayrak, SerdarCakmak, GulhanOzturk, TayfurOzkar, Saim2025-03-232025-03-2320210360-31991879-3487https://doi.org/10.1016/j.ijhydene.2020.02.023https://hdl.handle.net/11486/65744th International Symposium on Materials for Energy Storage and Conversion (mESC) -- SEP 11-13, 2019 -- Mugla, TURKEYWe report the synthesis of magnetically isolable ruthenium(0), rhodium(0), and palladium(0) nanoparticles, supported on carbon-coated magnetic iron particles, and their employment as catalysts in hydrolysis of ammonia borane. Carbon-coated iron (C-Fe) particles are obtained by co-processing of iron powders with methane in a radio frequency thermal plasma reactor. The impregnation of ruthenium(III), rhodium(III) and palladium(II) ions on the carbon-coated iron particles followed by aqueous solution of sodium borohydride leads to the formation of respective metal(0) nanoparticles supported on carbon coated iron, M-0/C-Fe NP (M 1/4 Ru, Rh, and Pd) at room temperature. M-0/C-Fe NPs are characterized using the ICP-OES, XPS, TEM, and EDX techniques and tested as catalysts for hydrolysis of ammonia borane at 298 K. The results reveal that Rh-0/C-Fe, Ru-0/C-Fe, Pd-0/C-Fe catalysts provide turnover frequency of 83, 93, and 29 min(-1), respectively, in this industrially important reaction. More importantly, these magnetically separable metal(0) nanoparticles show very high reusability with no noticeable activity loss in subsequent runs of hydrolysis evolving 3.0 equivalent H-2 per mole of ammonia borane. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.eninfo:eu-repo/semantics/closedAccessRhodiumPalladiumRutheniumCarbon coated ironHydrogenAmmonia boraneConference Object4625135481356010.1016/j.ijhydene.2020.02.0232-s2.0-85080081373Q1WOS:000634962100004Q1