Metal-free catalyst fabrication by incorporating oxygen groups on the surface of the carbonaceous sample and efficient hydrogen production from NaBH4 methanolysis

Saka, CaferBalbay, Asım2022-03-222022-03-222022Saka, C., & Balbay, A. (2022). Metal-free catalyst fabrication by incorporating oxygen groups on the surface of the carbonaceous sample and efficient hydrogen production from NaBH4 methanolysis. International Journal of Hydrogen Energy, 47(11), 7242-7251.https://doi.org/10.1016/j.ijhydene.2021.12.070https://hdl.handle.net/20.500.12899/764In the present study, metal-free catalysts for efficient H2 generation from NaBH4 methanolysis was produced for the first time from apricot kernel shells with two-step activation. The first stage of the two-stage activation includes the production of activated carbon with the KOH agent (AKOH), and the second stage includes hydrothermally HNO3 activation with oxygen doping (O doped AKOH + N). The hydrogen production rate (HGR) and the activation energy (Ea) of the reaction with the obtained metal-free catalyst (10 mg) were determined as 14,444 ml min?1 g?1 and 7.86 kJ mol?1, respectively. The structural and physical-chemical properties of these catalysts were characterized by XRD (X-ray diffraction), SEM (scanning electron microscopy), elemental CHNS analysis, FT-IR (Fourier transform infrared spectroscopy), and nitrogen adsorption analysis. Also, the reusability results of this metal-free catalyst for H2 production are promising.eninfo:eu-repo/semantics/closedAccessApricot kernel shellsMetal-free catalystOxygen dopingSodium borohydridemethanolysisHydrogenMetal-free catalyst fabrication by incorporating oxygen groups on the surface of the carbonaceous sample and efficient hydrogen production from NaBH4 methanolysisArticle10.1016/j.ijhydene.2021.12.0704711724272512-s2.0-85122099922WOS:000748997900005Q1