Caffeine Coated Iron Oxide Crustacean for Ammonia Borane Dehydrogenation Development of Magnetic Nickel Nanoparticles

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi, Год журнала: 2025, Номер 14(1), С. 633 - 646

Опубликована: Март 26, 2025

The aim of this study was to develop nickel (Ni) nanoclusters with caffeine-coated magnetic iron oxide (Fe3O4) center shells for the catalytic hydrolysis ammonia borane (AB). In study, (MIO) clusters were obtained by hydrothermal treatment. These first coated caffeine according reflux method at 150 oC 12 hours, and then Ni decorated on these impregnation method. Magnetic catalyst (Ni@C/Fe3O4) synthesized dropping 10 M 20 mL sodium borohydride (NaBH4-SBH) into Ni-C/ Fe3O4 in solution as a result loading processes carried out room conditions. After filtration, washing drying nitrogen atmosphere, crumbled identified advanced identification techniques (FT-IR, BET, SEM, EDX, XPS) used AB hydrolysis. solvate medium, amount, concentration, temperature repeated use parameters investigated As optimization 303 K, best hydrogen production determined 7873 mL/g.min using 2.5 % NaOH, 30 mg 300 mM AB. cycle frequency (TOF) measured 1447 s-1. reaction kinetics investigations, it that 1st order activation energy 35.07 kJ/mol.

Язык: Английский

Sustainable Nanocatalyst Synthesized from Battery Waste for Enhanced Hydrogen Evolution: A Circular Economy Approach

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116283 - 116283

Опубликована: Март 1, 2025

Язык: Английский

Green synthesis of highly efficient and stable Ni@CQD nanoparticles: Experimental and theoretical approach for hydrogen production from dimethyl aminborane and sodium borohydride hydrolysis

Fuel, Год журнала: 2025, Номер 397, С. 135412 - 135412

Опубликована: Апрель 17, 2025

Язык: Английский