Hansu, Tulin AvciCaglar, AykutSahin, OmerKivrak, Hilal2025-05-102025-05-1020202224-498010.31407/ijees10.2202-s2.0-85118643167https://doi.org/10.31407/ijees10.220https://hdl.handle.net/20.500.14720/5919Kivrak, Hilal/0000-0001-8001-7854In the present study, Co/CNT and Ce/CNT catalysts are prepared via sodium borohydride (NaBH4) reduction method. Co/CNT and Ce/CNT catalysts are examined to the dehydrogenation and electrooxidation of NaBH4. NaBH4 dehydrogenation activities of these Co/CNT and Ce/CNT catalysts are performed in alkaline environment. 5% Co/CNT catalyst exhibits superior hydrogen evolution compared with other catalysts. Activation energy is calculated using Arrhenius equation. Initial rate for this catalyst is found as 1700 ml H-2 g(cat)(-1) min(-1). As a result of the kinetic calculations, the activation energy of the catalyst is calculated as 44,68775 kj/mol. The degree of reaction (n) is found to be 0.5 by trial and error. In conclusion, 5% Co/CNT catalyst is a promising catalyst for hydrogen production from NaBH4. Cyclic voltammetry (CV) analysis is utilized to examine the electrochemical activity of the catalysts for NaBH4 electrooxidation. 0.1% Co/CNT catalyst has 0.38 mA cm(-2) (3181 mA mg(-1) Co) specific activity.eninfo:eu-repo/semantics/openAccessDehydrogenationElectrooxidationCeCoSodium BorohydrideArticle102N/AN/A389400WOS:000545565800020