Olmez, Saba SamatyaBalbay, AsimSaka, Cafer2024-12-242024-12-2420220360-31991879-3487https://doi.org/10.1016/j.ijhydene.2022.07.091https://hdl.handle.net/20.500.12604/6578Here, the carbon nanodots were successfully synthesized from pomegranate peels (PPCD). This obtained PPCD was treated by a hydrothermal process with phosphoric acid for P doping (P doped PPCD) and used as a metal-free catalyst to obtain hydrogen(H2) from so-dium borohydride (NaBH4) methanolysis for the first time. The characteristics of the samples obtained by ultraviolet, fluorescence, X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), Transmission electron microscopy (TEM) and Inductively coupled plasma mass spectrometry (ICP-MS) analyses were examined. NaBH4 concentra-tion effect, temperature effect and catalyst reusability experiments were carried out. Using 10 mg of the catalyst with 2.5% NaBH4, an HGR value of 13000 mL min-1g-1 was obtained. The activation energy (Ea) for the P-doped PPCD catalyst was 30.96 kJ mol-1.(c) 2022 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.eninfo:eu-repo/semantics/closedAccessPomegranate peelsCarbon nanodotsP dopingSodium borohydrideHydrogenArticle47743164731655Q1WOS:000864063400011Q12-s2.0-8513552105510.1016/j.ijhydene.2022.07.091